cbn at high temperature to 2000 ℃ was still with excellent red hardness .
cbn is a hardness second only to diamond superhard cutting tool materials ,
usually in the processing of the abrasive sanding belt material hardness greater than 48HRC works
best when ( machining soft materials cbn wear out quickly ) . cbn at high
temperature to 2000 ℃ was still with excellent red hardness . Although cbn
more brittle than cemented carbide , and the thermal and chemical stability
than the ceramic , but it has a higher than ceramic cutting tools impact
strength and crack resistance , and low rigidity of the machine is also able
to cut hard metals. In addition, custom- cbn proper power tool can withstand
rough cutting load, intermittent cutting blows and finishing the required
high temperature and abrasion resistance . Appropriate for the specified
customization processes including machine and fixture rigidity , edge
grinding large enough to prevent microscopic peeling , and the tool base body
is a high content of grade cbn . cbn metal cutting wheel grade high content of these specified
processes are required, because they have high speed under heavy load
conditions edge machining requirements of high thermal resistance and
toughness and for severe intermittent cutting . These properties make this
material is used as a tool material grade roughing of hardened steel and
pearlitic gray cast iron .
low content of material grades cbn cbn content than the more brittle grades ,
but they are used when machining hardened cut off wheel ferrous better performance . They
have a lower thermal conductivity and a relatively higher withstand high-
speed cutting and the negative rake angle of the compressive strength of the
heat generated . Higher cutting zone temperature can help soften the
workpiece material and chip breaking , while negative rake angle can enhance
the tool cutting edge stability , improve tool life and allows depth of cut
is less than 0.25mm . Because the tool can cbn surface finish of better than
0.4μm and maintain concentricity of ± 0.012mm
Abrasive is sharp, hard material, for grinding the surface of softer material. There are natural and artificial abrasives abrasives abrasives two categories. Classification according to the hardness and the general extravagant super abrasive abrasive two categories. A wide range of abrasive, from softer household detergents, precious hard abrasive material into the diamond. Each is a precision abrasive product manufacturing essential materials. Many natural abrasives.
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