Diamond drill rock breaking mechanism

Diamond drill rock breaking role is done by the diamond particles. You

know the drill rock breaking role, it should be aware of a single grain

of diamond rock breaking effect. In hard  carbide grinding wheels formations, single grain

diamond drilling pressure in the rock is under high stress conditions

(approximately 4200-5700MPa, some data suggest that up to 6300MPa), the

rock lithology changes occur from the plastic becomes brittle. Single

grain diamond eat into the formation, under the action of the cutting

torque rock breaking, cutting depth substantially equal to the depth of

the diamond particles to eat. This process as "plowing" so called

diamond drill plow cutting action.
In some brittle rocks in (such as sandstone, limestone, etc.), drill the

diamond particles in the WOB torque while 9 inch saw blade under the influence of broken

rock is much larger than the volume of diamond particles eat into the

rotary volume. When the pressure is not, only the direction of movement

along the diamond formation of small trenches, increased pressure will

cause the small grooves on both sides of the deep rock crushing and over

section size diamond particles.
Diamond drill rock breaking effect, except with the lithology and

external factors affecting lithology diamond tool manufacturer  (such as pressure, temperature,

formation fluid properties, etc.) related, WOB size is an important

factor. It cone bit like when you have a rock breaking the surface

crushing, crushing fatigue, the volume broken in three ways. Only when

the diamond particles have enough to eat than the pressure into the

formation rock, the rock volume occurs when broken, breaking rocks in

order to achieve the desired effect.