DrillWe drill is widely used in construction machinery hardware, it is used in the drilling of solid material through holes or blind holes , and is able to have the hole reaming tools. However, we choose different operating environments are also different types of drill bits , drill bits used mainly twist , flat drill, center drill , deep hole drilling and core drill . Reamer and countersink drill , although not on the physical material drilling, but the habit will also drill them into a class . Here , together with Xiaobian look at different types of drill bits for different uses of it .
Twist is the most widely -processing tool . Diameter in the GUSHI concrete polishing pads range of usually 0.25 to 80 mm . It is mainly composed of a working portion and a shank portion . Working part has two spiral grooves , the shape of cannabis, hence the name. In order to reduce the wall of the guide portion and the hole drilling friction , twist from the direction of the drill tip to gradually reduce the diameter of the shank inverted cone . Twist the helix angle corner came mainly affect the size of the cutting edge , edge flap strength and chip performance , typically 25 ° ~ 32 °. Available spiral groove milling, grinding , hot rolling or hot extrusion processing methods , the cutting portion is formed by sharpening the drill tip . Vertex standard twist drill cutting part 118 , chisel edge angle is 40 ° ~ 60 °, the angle of 8 ° ~ 20 °. For structural reasons , the rake angle at the outer edge of the large decreases toward the middle , chisel at a negative rake angle ( up to about -55 °), from the squeezing action when drilling . In order to improve the cutting twist drill , according to the nature of the material to be machined and ground into the cutting portion of the repair various shapes ( such as drilling group ) . There shank twist and form two straight shank taper shank , when caught in the drill chuck machining the former , the latter is inserted in the machine spindle or tailstock taper in . General manufacturing HSS twist drill . Inserts welded carbide blade or twist the crown for machining cast GUSHI tile cutting blades iron , hardened steel and non-metallic materials , solid carbide twist drills for machining small parts and printed circuit boards and other instrumentation .
Flat diamond cutting part Spade, simple structure, low cost, easy to import coolant hole, but cutting and chip performance is poor . Flat structure with integral drilled and assembled two. Integral mainly for drilling diameter of 0.03 to 0.5 mm pores . Fabricated flat diamond blade can be changed, the cooling can be mainly used for drilling large diameter holes 25 to 500 millimeters.
Deep hole drilling process usually refers to the ratio of the aperture hole depth and hole cutter more than 6 . Commonly used gun drilling , BTA deep hole drilling, jet drilling , DF deep hole drilling. Nesting also commonly used in deep hole drilling process .
The reamer 3 to 4 teeth , better rigidity than the GUSHI cutting discs twist drill , a hole has been used to expand and improve the machining accuracy and finish .
Countersink drill has more teeth to the hole forming method will be processed into the desired shape of the end for the processing of various countersunk head screws countersunk holes , or outer end face flattened hole.
Center drill for drilling shaft center hole with a piece , which is essentially a small twist of the helix angle drill and countersink compounded , so called composite center drill.
Hollow drill drill drill pipe is hollow in the middle , the main material used for core drilling .
PCD grinding wheel
2014年3月13日星期四
Some simple introduction diamomd core drill bits for
Twist is fixed by rotating the cutting axis relative to the workpiece hole drilling tools. Its capacity and shape into a spiral flute twist named. Helical groove has two grooves, slots or more grooves 3, but the most common two grooves.
Limiting aperture diameter twist drill by GUSHI concrete saws the spiral groove to make finer core drilling, drill bit low stiffness; only two edges with guide, easily skewed axis of the hole; chisel difficult to make a centering axial resistance increases, drill easy to swing. Therefore, the drilled hole shape and position errors. Twist the flank and rake face is curved along the main cutting edge the rake angle at each point, the angle GUSHI metal grinding wheel is not the same as the front transverse edge of the corner of -55 °. Cutting conditions are poor; distribution along the cutting edge of the cutting speed is unreasonable, the maximum intensity of the lowest point of a sword cutting so badly worn. Therefore, the hole machining accuracy is low. The whole cutting edge of the drill cutting edges participants, each point on the cutting edge not equal, the chip is easy to form a spiral, chip difficult.
Therefore, chips and the hole wall GUSHI diamond discs friction extrusion often scratch the cell walls, a low surface roughness after processing.
Limiting aperture diameter twist drill by GUSHI concrete saws the spiral groove to make finer core drilling, drill bit low stiffness; only two edges with guide, easily skewed axis of the hole; chisel difficult to make a centering axial resistance increases, drill easy to swing. Therefore, the drilled hole shape and position errors. Twist the flank and rake face is curved along the main cutting edge the rake angle at each point, the angle GUSHI metal grinding wheel is not the same as the front transverse edge of the corner of -55 °. Cutting conditions are poor; distribution along the cutting edge of the cutting speed is unreasonable, the maximum intensity of the lowest point of a sword cutting so badly worn. Therefore, the hole machining accuracy is low. The whole cutting edge of the drill cutting edges participants, each point on the cutting edge not equal, the chip is easy to form a spiral, chip difficult.
Therefore, chips and the hole wall GUSHI diamond discs friction extrusion often scratch the cell walls, a low surface roughness after processing.
2014年3月11日星期二
Some factors drill bits working conditions
PDC drill extremely harsh working conditions , not only in the work under enormous pressure , but also to withstand the impact of alternating composite role of various forces cause friction in the cutting process is intense, as the matrix PDC drill not only to strong mechanical GUSHI carbide saw blades properties, but also by a good thermal shock resistance and corrosion resistance. Pants body material, precision machining, heat treatment , welding , etc. after grinding becomes very important , which requires pants body material to high quality carbon steel, processed into pants body to make the appropriate heat treatment, ie after quenching low-temperature tempering , the hardness of the surface after the heat-treated pants between 40 ~ 42HRC, tempered martensite .
Separating the main reason underpinning the diamond layer and WC diamond coating layer is less mature and stable technology , poor adhesion of the diamond and the substrate , resulting in premature lapse diamond film was peeled from the WC denture base layer , greatly reducing the life of GUSHI circular blades the drill bit and cutting . Process measures progress / Substrate Adhesion : purification surface roughening treatment to remove the carbide tool during the manufacturing process inevitably remain in the substrate surface contaminants, adsorption , oxides , to alter the surface of the substrate microstructure ; addition to the lower surface of the adhesion strength of WC particles , to increase the contact area of the reaction gas sources and the substrate , the substrate surface to increase the surface energy , the progress of the diamond substrate on heterogeneous nucleation density , thereby enhancing the film / substrate adhesion. Commonly used methods are: chemical cleaning , mechanical mosaic powder , liquid ultrasonic treatment. PDC thermal residual stress is the main cause of its non- normal failure , reduce internal thermal GUSHI carbide drill bits residual stresses PDC PDC is progressive performance most effective way , through the use of non-planar gradient transition connection technology and technology that can increase the PCD layer and hard carbide and the contact area of the stress relaxation due to the physical performance parameters of the difference in thermal expansion coefficients of the two materials , the elastic modulus of the resulting concentrate . Only take the form of specific structures and transitional justice to be graded in order to effectively reduce the thermal residual stress PDC , its ability to impact fracture gaining the upper hand , the progress of its yield and lifetime. The internal stress of the diamond powder and titanium powder sintered layer , the DLC film , a tungsten / diamond gradient composition layer method , the film is preferably eliminated due to lattice mismatch with the base plate , the difference in coefficient of thermal expansion caused by : applying an intermediate layer .
Separating the main reason underpinning the diamond layer and WC diamond coating layer is less mature and stable technology , poor adhesion of the diamond and the substrate , resulting in premature lapse diamond film was peeled from the WC denture base layer , greatly reducing the life of GUSHI circular blades the drill bit and cutting . Process measures progress / Substrate Adhesion : purification surface roughening treatment to remove the carbide tool during the manufacturing process inevitably remain in the substrate surface contaminants, adsorption , oxides , to alter the surface of the substrate microstructure ; addition to the lower surface of the adhesion strength of WC particles , to increase the contact area of the reaction gas sources and the substrate , the substrate surface to increase the surface energy , the progress of the diamond substrate on heterogeneous nucleation density , thereby enhancing the film / substrate adhesion. Commonly used methods are: chemical cleaning , mechanical mosaic powder , liquid ultrasonic treatment. PDC thermal residual stress is the main cause of its non- normal failure , reduce internal thermal GUSHI carbide drill bits residual stresses PDC PDC is progressive performance most effective way , through the use of non-planar gradient transition connection technology and technology that can increase the PCD layer and hard carbide and the contact area of the stress relaxation due to the physical performance parameters of the difference in thermal expansion coefficients of the two materials , the elastic modulus of the resulting concentrate . Only take the form of specific structures and transitional justice to be graded in order to effectively reduce the thermal residual stress PDC , its ability to impact fracture gaining the upper hand , the progress of its yield and lifetime. The internal stress of the diamond powder and titanium powder sintered layer , the DLC film , a tungsten / diamond gradient composition layer method , the film is preferably eliminated due to lattice mismatch with the base plate , the difference in coefficient of thermal expansion caused by : applying an intermediate layer .
2014年3月2日星期日
diamond core drills line describes the role of the saw blade
Saw blade about the role of the first line is used to cut a sheet of solid material circular tool collectively. Blade can be divided into: diamond saw blade for stone cutting; materials for metal cutting HSS film (not inlaid carbide tip); for wood, furniture, plywood, aluminum, aluminum , radiators, plastics, steel and other cutting carbide saw blades. Carbide alloy GUSHI stone drill bits containing carbide saw blade type, a plurality of parameters of material, diameter, number of teeth, thickness, profile, angle, pore size of the matrix, which determine the processing capacity and the cutting blade. When you select the type of cutting blade according to the material, thickness, cutting speed, cutting direction, feeding speed, road width requires the correct selection of the saw blade. (A) the choice of carbide species commonly used types of tungsten carbide cobalt (Code YG), tungsten, titanium category (Code YT). Select ⒈ (two) 65Mn spring steel substrate elasticity and plastic, the material economy, good hardenability heat treatment, the heating temperature is low, deformation can be used for less demanding requirements of the cutting blade. ⒉ carbon tool steel carbon high thermal conductivity, but by 200 ℃ -250 ℃ temperature sharp decline in its hardness and wear resistance, heat treatment deformation, poor hardenability, tempering a long time easy to crack. Materials such GUSHI cutting disc for drill as tool manufacturing economy T8A, T10A, T12A and so on. ⒊ alloy tool steels compared with carbon tool steel, heat resistance, wear resistance, good processing performance, heat distortion temperature of 300 ℃ -400 ℃ suitable for the manufacture of high-grade alloy saw blade. Permeability, hardness and rigidity ⒋ speed tool steel with good quenching, less heat distortion, is ultra-high strength steel, suitable for the manufacture of high-grade thermoplastic stable thin saw blade. (C) the choice of diameter and thickness of the blade diameter sawing equipment used for sawing and related artifacts. Blade diameter is small, the cutting speed is relatively low; blade diameter saw blade and cutting equipment requirements will be higher, while cutting efficiency is high. The outer diameter of the circular saw blade different machine models choose to use according to the diameter of the blade matches. (D) Select the number of teeth of the serrated teeth, the teeth more generally, the more the cutting edge per unit time, the better the cutting performance, but required more and more carbide cutting teeth number, the price of the blade high, but the jagged too close, the teeth of the chip becomes smaller, easy to cause the blade fever; another jagged too, when the feed rate mismatch, it rarely cut per tooth, will exacerbate friction with the workpiece edge , affect the life of the blade. Typically tooth pitch 15-25mm, should be selected based on a reasonable number of teeth sawing material. (E) the choice of the thickness of the blade thickness theoretically we hope blade thinner the better, is actually a kerf consumption. Materials and manufacturing processes alloy saw blade matrix determines the thickness of the blade, the thickness is too thin, easy to shake when the blade work, the impact of cutting effect. To consider when GUSHI abrasive grinding wheels selecting blade thickness from work and the stability of the blade sawing materials. Some special-purpose material thickness are also specific requirements, equipment requirements should be based on use, such as slotting saw blades, saw blades crossed. (F) the choice of common tooth tooth tooth left and right (alternating teeth), flat teeth, flat teeth ladder (low gear), inverted trapezoidal tooth (inverted conical teeth), dovetail teeth (tooth hump), and does not common industrial grade three left-right, left right left right flat teeth and so on. ⒈ the most widely used around the teeth, fast cutting, grinding is relatively simple. For open crosscut saw all kinds of materials and soft and hard wood profiles and MDF, plywood, particle board, etc. Equipped with anti-rebound force protection around the tooth tooth tooth is dovetail for longitudinal cutting of all kinds have burl panels; around tooth saw blade with a negative rake angle due to the sharp serrated, good cutting quality, typically used for stickers panel sawing.
2014年2月24日星期一
Complete interpretation of quality drill bits second development
CNC deep hole drilling ( gun drill ) in recent years developed a deep hole
machining new technology. The traditional deep GUSHI circular blades hole machining ( hole depth
and aperture ratio greater than 5 ) , requires drilling, boring , thick
hinges , grinding , and other procedures in order to process a higher
accuracy and lower surface roughness of the hole . The new technology is
the use of special tools and high-pressure structure of cooling and
lubrication systems , multi-channel processes described above can be
simplified to a considerable depth consecutive passes completed high
precision and low surface roughness of hole machining , high efficiency of
this process , significant economic benefits .
Excellent performance cutting fluid deep hole drilling deep hole drilling
process is one of the key technologies , deep GUSHI carbide drill bits hole drilling cutting fluid
must have the following properties:
1 ) good cooling effect, eliminating the heat generated due to the
deformation and friction , inhibiting BUE formation.
2 ) Good high temperature lubrication, reducing friction and wear blade
and support to ensure the tool to maintain good lubrication at high
temperature cutting zone .
3 ) good permeability , chip , so that timely cutting fluid penetration
into the blade, and to ensure the smooth chip discharge . Thus , deep hole
drilling cutting fluid requires a high extreme pressure and low viscosity.
Mechanical products, styling products series occupies a large proportion .
Mostly the same series of styling products have the same or similar
contour features in traditional modeling methods for product design,
inevitably the model geometry the size and shape of the structure
repeatedly modified , adjusted and optimized , low design efficiency. In
order to improve design efficiency , styling products for serialization ,
you can use the parametric design method . Parametric design is the use of
a set of parameters to constrain the geometry of the product model , in
order to facilitate the realization of the variability of the product
model , design reusability and fast it can shorten the GUSHI brick saws design and
development cycle and improve design efficiency , freeing the designer
from the tedious modeling work, put more energy into the model analysis ,
and improvement of innovative work, for subsequent finite element analysis
and formulation process ready to work .
The most widely used in the drilling of the twist styling products also
belong to the series , the same type of high-quality twist drill has
structural features are similar , but differ in terms of size parameters.
Based on high-quality drill design software , call the API target for
secondary development to achieve the parametric modeling of complex
spatial design twist front surface flank , flank , flutes and cutting edge
belt.
machining new technology. The traditional deep GUSHI circular blades hole machining ( hole depth
and aperture ratio greater than 5 ) , requires drilling, boring , thick
hinges , grinding , and other procedures in order to process a higher
accuracy and lower surface roughness of the hole . The new technology is
the use of special tools and high-pressure structure of cooling and
lubrication systems , multi-channel processes described above can be
simplified to a considerable depth consecutive passes completed high
precision and low surface roughness of hole machining , high efficiency of
this process , significant economic benefits .
Excellent performance cutting fluid deep hole drilling deep hole drilling
process is one of the key technologies , deep GUSHI carbide drill bits hole drilling cutting fluid
must have the following properties:
1 ) good cooling effect, eliminating the heat generated due to the
deformation and friction , inhibiting BUE formation.
2 ) Good high temperature lubrication, reducing friction and wear blade
and support to ensure the tool to maintain good lubrication at high
temperature cutting zone .
3 ) good permeability , chip , so that timely cutting fluid penetration
into the blade, and to ensure the smooth chip discharge . Thus , deep hole
drilling cutting fluid requires a high extreme pressure and low viscosity.
Mechanical products, styling products series occupies a large proportion .
Mostly the same series of styling products have the same or similar
contour features in traditional modeling methods for product design,
inevitably the model geometry the size and shape of the structure
repeatedly modified , adjusted and optimized , low design efficiency. In
order to improve design efficiency , styling products for serialization ,
you can use the parametric design method . Parametric design is the use of
a set of parameters to constrain the geometry of the product model , in
order to facilitate the realization of the variability of the product
model , design reusability and fast it can shorten the GUSHI brick saws design and
development cycle and improve design efficiency , freeing the designer
from the tedious modeling work, put more energy into the model analysis ,
and improvement of innovative work, for subsequent finite element analysis
and formulation process ready to work .
The most widely used in the drilling of the twist styling products also
belong to the series , the same type of high-quality twist drill has
structural features are similar , but differ in terms of size parameters.
Based on high-quality drill design software , call the API target for
secondary development to achieve the parametric modeling of complex
spatial design twist front surface flank , flank , flutes and cutting edge
belt.
2014年2月17日星期一
Ropes diamond core drills into Coring advantage
Coring Drilling Coring advantages:
1 auxiliary reducing tripping time, increasing net drilling time, drilling deeper economic effect is more significant;
2 core blockage can gain immediate, rock cores taken to improve the rate;
(3) reduce the manual workers;
4 screwed reduce unloading drill wear and GUSHI tile cutter extend the life of the drill pipe, tubing reduce consumption;
5 Reduce sweep drill hole wear, unscrew and remove the chance of collision with the hole wall. Extend bit life;
6 reduce fluid suction and pressure loss of balance hole wall opportunity to reduce accidents hole;
7 reduce tripping rope mechanical wear and consumption;
8 reduce drilling bending, improve the quality of drilling;
9 drilled repeatedly in favor of the formation, to avoid the collapse of the hole wall blocks away;
10. Coring winch rope can devolve inclinometer in the drill, conducted inclinometer.
In short, Coring, can significantly GUSHI brick saws improve drilling efficiency, ensure quality rock cores, reduce drilling costs. Coring Drilling need to have the condition:
In the core drilling, the realization Coring, you must have the following major technical conditions:
1 reasonable structure, reliable performance, including core drilling with salvage, positioning, suspension, messenger, single-action, de-regulation and security cards and other agencies rope core core tube and fisher;
2 Action flexible, durable tool ancillary equipment, including drill pipe holder, put lead, a coring winch rope, etc.;
3 high intensity inside and outside the flat drill with drill body and after quenching, the appearance of high-frequency hardening, hard chrome plating composed of male and female threaded joints;
4 long life and high efficiency of the diamond drill bit, the species has stepped table inlaid natural diamond drill bits, different lip surface shapes and natural progesterone diamond head table inlaid with a GUSHI cutting disc for drill combination of impregnated diamond bits;
5. Adopt reasonable rules and coring drilling process technique.
1 auxiliary reducing tripping time, increasing net drilling time, drilling deeper economic effect is more significant;
2 core blockage can gain immediate, rock cores taken to improve the rate;
(3) reduce the manual workers;
4 screwed reduce unloading drill wear and GUSHI tile cutter extend the life of the drill pipe, tubing reduce consumption;
5 Reduce sweep drill hole wear, unscrew and remove the chance of collision with the hole wall. Extend bit life;
6 reduce fluid suction and pressure loss of balance hole wall opportunity to reduce accidents hole;
7 reduce tripping rope mechanical wear and consumption;
8 reduce drilling bending, improve the quality of drilling;
9 drilled repeatedly in favor of the formation, to avoid the collapse of the hole wall blocks away;
10. Coring winch rope can devolve inclinometer in the drill, conducted inclinometer.
In short, Coring, can significantly GUSHI brick saws improve drilling efficiency, ensure quality rock cores, reduce drilling costs. Coring Drilling need to have the condition:
In the core drilling, the realization Coring, you must have the following major technical conditions:
1 reasonable structure, reliable performance, including core drilling with salvage, positioning, suspension, messenger, single-action, de-regulation and security cards and other agencies rope core core tube and fisher;
2 Action flexible, durable tool ancillary equipment, including drill pipe holder, put lead, a coring winch rope, etc.;
3 high intensity inside and outside the flat drill with drill body and after quenching, the appearance of high-frequency hardening, hard chrome plating composed of male and female threaded joints;
4 long life and high efficiency of the diamond drill bit, the species has stepped table inlaid natural diamond drill bits, different lip surface shapes and natural progesterone diamond head table inlaid with a GUSHI cutting disc for drill combination of impregnated diamond bits;
5. Adopt reasonable rules and coring drilling process technique.
2014年2月12日星期三
wet core bits maintenance
Concrete coring machine maintenance:
1, regularly check the connection of the components of concrete coring machine, if loose should be timely adjusted.
2, when the drill bit into the big macro suppliers GUSHI abrasive flap wheels Experimental Instrument Co., Ltd. Tel 13131796580, lithium grease should be added at the two threads.
3, after the end of the drilling rig will be cleaned each part and add oil in the column and the rack.
4, when the concrete coring machine gear box GUSHI circular blades every six months for lithium-based grease.
Concrete coring machine structures:
Rigs drilling vertical structure of two columns vertically downward direction from the gasoline engine, gearbox, spindle, drill, column, base lifting structure, cooling to the pump, running gear and other components.
Concrete coring machine works:
Rig the alloy material helical gear teeth induction hardened, can be durable wheels via a pair of belt driven rotary synthetic diamond drill work, lifting structure using advanced ball screw easy and convenient, thick-walled seamless steel column , after the precision grinding hard GUSHI carbide drill bits chrome plating surface treatment, counterclockwise rotation of the drill bit and move up and down to achieve the purpose of drilling or coring.
1, regularly check the connection of the components of concrete coring machine, if loose should be timely adjusted.
2, when the drill bit into the big macro suppliers GUSHI abrasive flap wheels Experimental Instrument Co., Ltd. Tel 13131796580, lithium grease should be added at the two threads.
3, after the end of the drilling rig will be cleaned each part and add oil in the column and the rack.
4, when the concrete coring machine gear box GUSHI circular blades every six months for lithium-based grease.
Concrete coring machine structures:
Rigs drilling vertical structure of two columns vertically downward direction from the gasoline engine, gearbox, spindle, drill, column, base lifting structure, cooling to the pump, running gear and other components.
Concrete coring machine works:
Rig the alloy material helical gear teeth induction hardened, can be durable wheels via a pair of belt driven rotary synthetic diamond drill work, lifting structure using advanced ball screw easy and convenient, thick-walled seamless steel column , after the precision grinding hard GUSHI carbide drill bits chrome plating surface treatment, counterclockwise rotation of the drill bit and move up and down to achieve the purpose of drilling or coring.
2014年2月10日星期一
Some of the major introduction of diamond core drills
First, what is the drill
Is used to drill a workpiece to drilling tools.
Drill generally just (W18Cr4V or W9Cr4V2) made of high-speed, divided twist, flat drill, center drill, countersink hole drilling, deep hole drilling, which is our twist fitter, machining the most common drill.
This is a paper I have to talk about is the main method of twist drill sharpening its restructuring. I began to talk about from the GUSHI sds hammer drill bits twist, first introduces the basic knowledge under twist.
Twist the type and structure:
Straight shank twist drill into, Morse taper shank. Generally straight shank twist drill diameter 13mm or less in diameter Morse taper shank twist drills are in 13mm or more. Typically the twist handle, neck, working part, wherein the working portion and the guide portion, the cutting part. Specifically as shown in Figure
(A) the handle - is generally used to transfer the clamping force and a smaller diameter than Φ13 mm straight shank drill made it, no clear straight shank drill neck, the diameter of the drill, trademark etc. engraved on the handle directly. Φ13 mm and a diameter greater than generally made taper shank drills, taper shank drills taper is produced according to national standards, according to the size of the drill diameter and made Mohs 1 #, 2 #, 3 #, 4 #, 5 #, etc. taper, the larger the size of the handle numeral greater. Flat tail taper the ends for easy removal and transfer torque from the drill bit role.
(2) Neck - The neck is connected to the GUSHI cutting disc for drill handle portion and a portion of the work, but also for the grinding wheel retraction drill is used, the diameter of the drill itself, materials and trademarks are engraved on the neck.
(3) working part - it is divided into two parts ① cutting guide and the guide portion twist to the right direction to keep working, and when re-sharpening drill bits, cutting guide portion and gradually become part and to work. The guide portion has two parallel helical grooves, is to be formed to accommodate the cutting edge and the removal of the chips and facilitate the input of the cutting fluid. There are two edges with a guide portion, its diameter is slightly inverted cone, every 100mm length, shank diameter is reduced to 0.05-0.10mm, both to guide the direction of the drill bit cutting, but also can reduce the drill hole wall friction. ② a key part of GUSHI abrasive flap wheels the cutting portion of the drill bit, the flank twist of six, five blade consists of: a rake face comprising two, two rear flank, two sub behind the two main cutting edges, two auxiliary cutting edge , a horizontal edge, namely "a sharp three blade." As shown in Figure
Through these two points, I believe we have fully understood the basics of the drill point, so I can deeper introduce myself sharpening methods and steps up.
Twist mainly by cutting part of the cutting, but we have to start from the drill bit is also part of the transformation. Start sharpening my own way to start talking.
Is used to drill a workpiece to drilling tools.
Drill generally just (W18Cr4V or W9Cr4V2) made of high-speed, divided twist, flat drill, center drill, countersink hole drilling, deep hole drilling, which is our twist fitter, machining the most common drill.
This is a paper I have to talk about is the main method of twist drill sharpening its restructuring. I began to talk about from the GUSHI sds hammer drill bits twist, first introduces the basic knowledge under twist.
Twist the type and structure:
Straight shank twist drill into, Morse taper shank. Generally straight shank twist drill diameter 13mm or less in diameter Morse taper shank twist drills are in 13mm or more. Typically the twist handle, neck, working part, wherein the working portion and the guide portion, the cutting part. Specifically as shown in Figure
(A) the handle - is generally used to transfer the clamping force and a smaller diameter than Φ13 mm straight shank drill made it, no clear straight shank drill neck, the diameter of the drill, trademark etc. engraved on the handle directly. Φ13 mm and a diameter greater than generally made taper shank drills, taper shank drills taper is produced according to national standards, according to the size of the drill diameter and made Mohs 1 #, 2 #, 3 #, 4 #, 5 #, etc. taper, the larger the size of the handle numeral greater. Flat tail taper the ends for easy removal and transfer torque from the drill bit role.
(2) Neck - The neck is connected to the GUSHI cutting disc for drill handle portion and a portion of the work, but also for the grinding wheel retraction drill is used, the diameter of the drill itself, materials and trademarks are engraved on the neck.
(3) working part - it is divided into two parts ① cutting guide and the guide portion twist to the right direction to keep working, and when re-sharpening drill bits, cutting guide portion and gradually become part and to work. The guide portion has two parallel helical grooves, is to be formed to accommodate the cutting edge and the removal of the chips and facilitate the input of the cutting fluid. There are two edges with a guide portion, its diameter is slightly inverted cone, every 100mm length, shank diameter is reduced to 0.05-0.10mm, both to guide the direction of the drill bit cutting, but also can reduce the drill hole wall friction. ② a key part of GUSHI abrasive flap wheels the cutting portion of the drill bit, the flank twist of six, five blade consists of: a rake face comprising two, two rear flank, two sub behind the two main cutting edges, two auxiliary cutting edge , a horizontal edge, namely "a sharp three blade." As shown in Figure
Through these two points, I believe we have fully understood the basics of the drill point, so I can deeper introduce myself sharpening methods and steps up.
Twist mainly by cutting part of the cutting, but we have to start from the drill bit is also part of the transformation. Start sharpening my own way to start talking.
2014年1月19日星期日
Security requirements of the blade Which points
Saw-cut steel composite panels, rock wool sandwich panel saw, cutting
copper blade, cutting blade iron, aluminum cutting saw, woodworking saw
blades, PCD saw blades, precision panel saw blade, multi-saw Saw, Saw
exclusive diamond quartz material, non-porous GUSHI colde saw blade ceramic stone dedicated
diamond saw blades, diamond saw marble, granite diamond saw.
Maintenance of the blade:
1 blade If not used immediately, it should be flat or use the hole to
hang up, or other items can not be stacked on the flat of the blade
foot, and pay attention to moisture, anti-corrosion.
(2) When the blade is no longer sharp cutting surface roughness, it
must promptly re-grinding. Grinding can not change the original angle,
and destruction balancing.
3 inner diameter of the blade correction, the positioning hole
machining, etc., must be performed by the manufacturer. If the process
is bad, will affect the product effect, and potentially dangerous,
reaming should not be over the original aperture 20mm, so as not to
affect the balance of stress.
Blade requirements:
1, when the work piece should be fixed to ensure that, in line with
eating knife profiles positioning direction in order to avoid abnormal
cut, or not to apply lateral pressure curve cutting, smooth feed to
avoid the impact of the blade contacts the workpiece, resulting in
blade breakage, or workpiece flying, accident.
2, work and found abnormal sound GUSHI sanding disc for drill and vibration, cutting surface
roughness, or odor, you must immediately terminate operations, timely
inspection, troubleshooting to avoid accidents.
3, at the start and stop cutting cutting, do not feed too fast to avoid
broken teeth and damaged.
4, if the cutting aluminum or other metal, to use a dedicated coolant
to prevent the blade from overheating, resulting in tooth paste, and
other damage, affecting the cutting quality.
5, flutes and suction equipment to ensure smooth flow of slag device to
prevent slag accumulation into blocks, affecting production and safety.
6, when dry cutting, do not cut long GUSHI tct circular saw blades hours, so as not to affect the
life of the blade and the cutting effect; wet sheet cutting, water jet
cutting should be added, to guard against leakage.
copper blade, cutting blade iron, aluminum cutting saw, woodworking saw
blades, PCD saw blades, precision panel saw blade, multi-saw Saw, Saw
exclusive diamond quartz material, non-porous GUSHI colde saw blade ceramic stone dedicated
diamond saw blades, diamond saw marble, granite diamond saw.
Maintenance of the blade:
1 blade If not used immediately, it should be flat or use the hole to
hang up, or other items can not be stacked on the flat of the blade
foot, and pay attention to moisture, anti-corrosion.
(2) When the blade is no longer sharp cutting surface roughness, it
must promptly re-grinding. Grinding can not change the original angle,
and destruction balancing.
3 inner diameter of the blade correction, the positioning hole
machining, etc., must be performed by the manufacturer. If the process
is bad, will affect the product effect, and potentially dangerous,
reaming should not be over the original aperture 20mm, so as not to
affect the balance of stress.
Blade requirements:
1, when the work piece should be fixed to ensure that, in line with
eating knife profiles positioning direction in order to avoid abnormal
cut, or not to apply lateral pressure curve cutting, smooth feed to
avoid the impact of the blade contacts the workpiece, resulting in
blade breakage, or workpiece flying, accident.
2, work and found abnormal sound GUSHI sanding disc for drill and vibration, cutting surface
roughness, or odor, you must immediately terminate operations, timely
inspection, troubleshooting to avoid accidents.
3, at the start and stop cutting cutting, do not feed too fast to avoid
broken teeth and damaged.
4, if the cutting aluminum or other metal, to use a dedicated coolant
to prevent the blade from overheating, resulting in tooth paste, and
other damage, affecting the cutting quality.
5, flutes and suction equipment to ensure smooth flow of slag device to
prevent slag accumulation into blocks, affecting production and safety.
6, when dry cutting, do not cut long GUSHI tct circular saw blades hours, so as not to affect the
life of the blade and the cutting effect; wet sheet cutting, water jet
cutting should be added, to guard against leakage.
2014年1月13日星期一
Status of high-grade blade matrix diamond saw and development prospects
Diamond saw blade is now widely used in the construction of stone, glass, ceramics, crystals, gemstones, iron and other materials processing and housing, roads, bridges, etc., with the continuous improvement and cost diamond saw blade production technology continues to decrease, it applications is still expanding, the demand continues to increase, now it has become an important part of diamond tools, diamond is the largest consumer of diamond tools. Diamond saw blade production methods and their GUSHI dry cut blades application of the effect of different production methods and application performance saw blade, the method currently used mainly to suppress the production of sintered diamond saw, a few blades produced using electroplating method, there is a common method of cold pressing and sintering sintering, hot pressing and sintering welding three main ways. Saw another frequency welding welding and laser welding points.
Currently, in the international market, there is still a monolithic saw a higher share, while the domestic market are based on a combination of multi-chip saw blade thickness of the same group saw a different diameter, this group saw blade on the saw and requirements are high, high production efficiency, but the production cost is high. But the group saw less demanding on the diamond saw blade sharpness, and past monolithic saw a substantial increase compared to the production efficiency, but also reduces the overall cost, which greatly improved the international competitiveness of Chinese-made stone. Trimming Saw prevalent in Ф300mm to Ф500mm welding-type blade, the international market for such demanding blade sharpness, taking into account the life of the saw blade and prices, the domestic market is too much emphasis on price, and thus the blade performance than Low. Saw a lot of modeling classes used in Japanese tombstone machining and interior decoration to GUSHI tct circular saw blades the small size of the main blade Ф350mm below. Various methods are currently producing blades are in use, but still hot pressing the blade as much. In addition, according to the type of stone blades have marble, sandstone blades, granite blades and artificial stone blades of the points, the largest granite blade consumption, but high-grade marble cutting edge blade technology the highest degree of difficulty, artificial stone blade demand is gradually expanding.
Construction is second only to diamond stone tools the second largest diamond tools diamond tools, the Western developed countries especially the United States very early use of diamond tools in engineering construction, to the present has been very popular and formed numerous varieties. On diamond saw blade variety, from the use of equipment or processing or use of objects such as different angles classification, this article will be divided into general simplify blade saw, saw blades and other specialty blades, blade and then classified according to the professional processing of objects , a common old concrete saw, saw blades new cement, asphalt saw blade, wall saw blades
Diamond saw blade in a wide range of GUSHI stone drill bits applications in developed countries, more mature technologies and standards, product and market segments have been, but with the further development of the technology of diamond saw blades, diamond saw applications will continue to expand, the market will continue to grow. Diamond saw domestic market has become the world's largest market, but aspects of the blade level, variety, range of applications and manufacturing technology there are still a wide gap with developed countries, regardless of technology or the market has much room for development, I hope the industry ambitious people to continue their efforts to eliminate the gap as soon as possible.
Currently, in the international market, there is still a monolithic saw a higher share, while the domestic market are based on a combination of multi-chip saw blade thickness of the same group saw a different diameter, this group saw blade on the saw and requirements are high, high production efficiency, but the production cost is high. But the group saw less demanding on the diamond saw blade sharpness, and past monolithic saw a substantial increase compared to the production efficiency, but also reduces the overall cost, which greatly improved the international competitiveness of Chinese-made stone. Trimming Saw prevalent in Ф300mm to Ф500mm welding-type blade, the international market for such demanding blade sharpness, taking into account the life of the saw blade and prices, the domestic market is too much emphasis on price, and thus the blade performance than Low. Saw a lot of modeling classes used in Japanese tombstone machining and interior decoration to GUSHI tct circular saw blades the small size of the main blade Ф350mm below. Various methods are currently producing blades are in use, but still hot pressing the blade as much. In addition, according to the type of stone blades have marble, sandstone blades, granite blades and artificial stone blades of the points, the largest granite blade consumption, but high-grade marble cutting edge blade technology the highest degree of difficulty, artificial stone blade demand is gradually expanding.
Construction is second only to diamond stone tools the second largest diamond tools diamond tools, the Western developed countries especially the United States very early use of diamond tools in engineering construction, to the present has been very popular and formed numerous varieties. On diamond saw blade variety, from the use of equipment or processing or use of objects such as different angles classification, this article will be divided into general simplify blade saw, saw blades and other specialty blades, blade and then classified according to the professional processing of objects , a common old concrete saw, saw blades new cement, asphalt saw blade, wall saw blades
Diamond saw blade in a wide range of GUSHI stone drill bits applications in developed countries, more mature technologies and standards, product and market segments have been, but with the further development of the technology of diamond saw blades, diamond saw applications will continue to expand, the market will continue to grow. Diamond saw domestic market has become the world's largest market, but aspects of the blade level, variety, range of applications and manufacturing technology there are still a wide gap with developed countries, regardless of technology or the market has much room for development, I hope the industry ambitious people to continue their efforts to eliminate the gap as soon as possible.
2014年1月5日星期日
Diamond wheel clogging type description
1 ) embedded clogging mechanism and attachment type
Embedded and dependent type jams are clogging debris mechanically filling in gaps in diamond grinding wheel produced . Fill power from two aspects, one is external , one internal, related to the physical, electrical , thermal , etc. factors.
External factors : Grinding has a very important feature , so the grinding zone of debris under strong positive pressure is mechanically squeezed into the gap in the wheel surface . From the microscopic analysis of debris along the front of the slide abrasive , abrasive in front brick saws of the local area with several layers of debris piled in the back of abrasive due to the role of high-speed rotating grinding wheel , forming a vortex flow area, whirlpool area significantly reduced air pressure in the negative pressure , so that part of the debris attached to the back of the abrasive grains to form abrasive flank dependent clogging material is attached to the majority of ash and particles. Electrostatic field : the relative speed of the grinding wheel and the workpiece is much greater than V V sand workers, ordinary grinder V s = 3 ~ 50m / s, the speed of high-speed grinder grinding maturity value is 50 ~ 80 / s, foreign trials at speeds up to 1.5m / s or less 200m / s ~ 250m / s, the speed of the workpiece . When the grinding wheel and the work of the relative motion , arranged according to certain rules of the charge in the grinding area, due to the grinding wheel and the workpiece surface electron escape will cause. Meanwhile , the grinding gas high temperature region will result in the shock due to the discharge , so that the neutral abrasive flap wheels gas is ionized into positive ions and electrons. Some small areas in the grinding zone formed by a small electric field consists of the grinding wheel and the workpiece , the electric field , neutral atoms , positive ions, electrons , impurities, dust , not only the neutral atoms are ionized in the process , there are ion and electron recombination process. In the electric field , the polar part of the debris will be presented according to the principles of opposites attract , and the wheel opposite to the polarity of the debris is adsorbed on the surface of the grinding wheel . Since the electric field strength is small, so the adsorption force is weak, the wheel surface debris is not solid , but by means of mechanical pressure between the larger wheel and the workpiece, the wheel has been adsorbed on the surface of the wear debris can be stably embedded Wheel the gap between the surfaces . 2 ) blocking adhesion type mechanism : the majority of the grinding process of grinding the input power into heat, so that the grinding temperature up to 1200K or more points , in such a high temperature, rapid grinding of the first case of air circular blades oxidation , the formation of low melting point metal oxides, metal oxides followed by those in the grinding zone was heated to high temperatures melt state , covering the surface of the wheel , when this part of the surface of the grinding wheel on participation once again in the role of the grinding force , and some squeezed open , some enhancement, increased affinity and adhesion with the wheel , and the workpiece is pressed adhered to the surface of a groove surface of the ridge . Through multiple stochastic grinding , many abrasive debris adhering four weeks , the grinding force increases, the temperature rises , thereby forming a vicious cycle of increased congestion, or the abrasive grain broken off, which is melt adhesive .
Embedded and dependent type jams are clogging debris mechanically filling in gaps in diamond grinding wheel produced . Fill power from two aspects, one is external , one internal, related to the physical, electrical , thermal , etc. factors.
External factors : Grinding has a very important feature , so the grinding zone of debris under strong positive pressure is mechanically squeezed into the gap in the wheel surface . From the microscopic analysis of debris along the front of the slide abrasive , abrasive in front brick saws of the local area with several layers of debris piled in the back of abrasive due to the role of high-speed rotating grinding wheel , forming a vortex flow area, whirlpool area significantly reduced air pressure in the negative pressure , so that part of the debris attached to the back of the abrasive grains to form abrasive flank dependent clogging material is attached to the majority of ash and particles. Electrostatic field : the relative speed of the grinding wheel and the workpiece is much greater than V V sand workers, ordinary grinder V s = 3 ~ 50m / s, the speed of high-speed grinder grinding maturity value is 50 ~ 80 / s, foreign trials at speeds up to 1.5m / s or less 200m / s ~ 250m / s, the speed of the workpiece . When the grinding wheel and the work of the relative motion , arranged according to certain rules of the charge in the grinding area, due to the grinding wheel and the workpiece surface electron escape will cause. Meanwhile , the grinding gas high temperature region will result in the shock due to the discharge , so that the neutral abrasive flap wheels gas is ionized into positive ions and electrons. Some small areas in the grinding zone formed by a small electric field consists of the grinding wheel and the workpiece , the electric field , neutral atoms , positive ions, electrons , impurities, dust , not only the neutral atoms are ionized in the process , there are ion and electron recombination process. In the electric field , the polar part of the debris will be presented according to the principles of opposites attract , and the wheel opposite to the polarity of the debris is adsorbed on the surface of the grinding wheel . Since the electric field strength is small, so the adsorption force is weak, the wheel surface debris is not solid , but by means of mechanical pressure between the larger wheel and the workpiece, the wheel has been adsorbed on the surface of the wear debris can be stably embedded Wheel the gap between the surfaces . 2 ) blocking adhesion type mechanism : the majority of the grinding process of grinding the input power into heat, so that the grinding temperature up to 1200K or more points , in such a high temperature, rapid grinding of the first case of air circular blades oxidation , the formation of low melting point metal oxides, metal oxides followed by those in the grinding zone was heated to high temperatures melt state , covering the surface of the wheel , when this part of the surface of the grinding wheel on participation once again in the role of the grinding force , and some squeezed open , some enhancement, increased affinity and adhesion with the wheel , and the workpiece is pressed adhered to the surface of a groove surface of the ridge . Through multiple stochastic grinding , many abrasive debris adhering four weeks , the grinding force increases, the temperature rises , thereby forming a vicious cycle of increased congestion, or the abrasive grain broken off, which is melt adhesive .
2014年1月1日星期三
Teach you how to select a good carbide saw blade grinding fluid
Quality carbide saw blade factory tutor you how to select a good carbide saw blade grinding fluid
Cheap carbide on the market tend to contain large amounts of the grinding liquid mineral , nitrites , heavy metals , phenols , formaldehyde, phosphorus, chlorine , triethanolamine and the like , although they also may play a lubricating, cooling , anti-bacterial and anti- corrosion rust and so on , but there are less fatal flaws.
First, the health hazards
1 bactericidal additives used phenol , chlorine , formaldehyde caused by the human body is extremely tile cutting blades toxic ;
. Degreasing effect two some minerals surfactant operator will degrease the skin , dry, itching or cracking ;
3 nitrite carcinogenic hazard to humans ;
4 occur in grinding off the cobalt alloy scrap and grinding fluid chemical reaction can easily make grinding fluid color becomes cloudy , and the formation of a large number of carcinogenic cobalt ions , the operator health and social conditions are caused by great harm .
Second, the alloy injury
After using abrasive grinding fluid stone polishing pads containing triethanolamine , using scanning electron microscopy milled alloy surface composition analysis by spectrophotometry grinding fluid cobalt content was measured experimental results show that the mill containing triethanolamine cutting fluid on the hardness of the alloy has great harm .
In summary, if you choose expensive imported high-quality environmentally friendly water-soluble grinding fluid, in addition to the above free of harmful substances, carbide cobalt element turbo diamond blade does not react chemically with the grinding fluid so that you can be recycled always keep grinding fluid is clear and transparent , but also the social environment on human health and without any harm !
Cheap carbide on the market tend to contain large amounts of the grinding liquid mineral , nitrites , heavy metals , phenols , formaldehyde, phosphorus, chlorine , triethanolamine and the like , although they also may play a lubricating, cooling , anti-bacterial and anti- corrosion rust and so on , but there are less fatal flaws.
First, the health hazards
1 bactericidal additives used phenol , chlorine , formaldehyde caused by the human body is extremely tile cutting blades toxic ;
. Degreasing effect two some minerals surfactant operator will degrease the skin , dry, itching or cracking ;
3 nitrite carcinogenic hazard to humans ;
4 occur in grinding off the cobalt alloy scrap and grinding fluid chemical reaction can easily make grinding fluid color becomes cloudy , and the formation of a large number of carcinogenic cobalt ions , the operator health and social conditions are caused by great harm .
Second, the alloy injury
After using abrasive grinding fluid stone polishing pads containing triethanolamine , using scanning electron microscopy milled alloy surface composition analysis by spectrophotometry grinding fluid cobalt content was measured experimental results show that the mill containing triethanolamine cutting fluid on the hardness of the alloy has great harm .
In summary, if you choose expensive imported high-quality environmentally friendly water-soluble grinding fluid, in addition to the above free of harmful substances, carbide cobalt element turbo diamond blade does not react chemically with the grinding fluid so that you can be recycled always keep grinding fluid is clear and transparent , but also the social environment on human health and without any harm !
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