2013年9月16日星期一

Some of the major diamond wheel applications

By a diamond or cubic boron nitride (CBN) abrasive grinding wheel production , because of its excellent grinding performance , has been widely used for grinding various aspects of the field .
 Diamond grinding wheel grinding carbide , glass, ceramics , precious stones high brittle materials effects tools . In recent years , with high-speed ultra-precision grinding technology rapidly grinding
Development , put forward higher  diamond bandsaw blades requirements for grinding wheel , ceramic resin bonded grinding wheel has been unable to meet production needs , because of its combination of metal bonded grinding wheel , high strength, good formability ,
Long life and other significant characteristics of the production has been widely used.
Metal bond diamond wheel manufacturers in different ways according to the main there are two types of sintered plating . In order to give full play to the role of super abrasive abroad from the 20th century, 90 years
On behalf of the beginning of the high-temperature brazing process to develop a new wheel, ie high temperature brazing monolayer superabrasive grinding wheels, this wheel is still in the current domestic research and development stage .
2 , sintered diamond wheel
Sintered metal-bonded grinding wheels mostly bronze and other metals as a binder , with the manufacture of high-temperature sintering method , which combines high strength, good formability , high temperature , thermal conductivity
Good wear resistance, long life, can withstand greater loads. Wheel sintering process because inevitably kept the dry cut blades  contraction and deformation , so use a facelift before the grinding wheel
But Dresser difficult. Current production methods commonly used plastic roller wheel right when dressing not only time consuming, but the process of finishing off the diamond particles are more trimming
Wheel itself consumes large plastic lower accuracy . France composite dressing method. Electrolytic dressing method is fast , but shaping accuracy is not high ; EDM shaping precision trimming method can be either plastic dressing , but the plastic slowly ; composite dressing method has spark composite electrolytic dressing , mechanical chemical compound trimming method, etc., dressing better, but the system is more complex, so sintered diamond wheel dressing the problem still has not been solved.
 Further , since the grinding wheel manufacturing process determines the random surface morphology , each grain geometry, distribution and high degree of inconsistency which the cutting edge , so  concrete cutting blade that only a small number of high grinding the cutting edges cut into the workpiece , the grinding quality of the grinding limit further improve the efficiency .

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