Custom alloy cutters, ceramic cutters, diamond cutters, and CNC tools

      There are many reasons for abnormal wear, cutting tool materials are: toughness or
hardness is too low; geometric structure or the angle of the cutting tool is not reasonable,
the cutting edge is too weak or too large cutting force; cutting parameters selection is not
 reasonable, the cutting force is too large or too high cutting temperature; cutting tool due
to sudden heat quenching (such as intermittent cutting and the cooling fluid) too large
thermal stress resulting in crack; improper operation so that the cutting edges are subject
to sudden mechanical or thermal shock, so that chipping and hot cracking etc.

      The exfoliation caused by mechanical wear is not only on the front of the knife, but also
on the surface of the knives. The exfoliation area that occurs on the front face is generally
smaller than that on the spalling area on the surface of the knives, as shown in Figure 4.
The heat diffusion also causes the exfoliation of the front and rear surface. The abnormal
wear or breakage of the cutting tool, or the fracture of the blade, usually occurs during the
intermittent cutting process, and the tool breakage will occur when the rigidity of the
machining system is poor. Increasing tool material toughness (increasing cobalt content
in cemented carbide tool material, or increasing TiC and TaC content) can effectively avoid
tool breakage. In addition, increasing the strength of the tool structure and increasing the
rigidity of the machining system will reduce the probability of the tool breakage.