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1: the processing hardness of the tool wear faster, but also difficult to chip.

2: low thermal conductivity causes the plastic deformation and cutting tool wear faster.

3: the accumulation of debris easily lead to small pieces of debris left on the cutting edge of the blade, and cause bad processing surface.

4: the chemical relationship between the cutting tool and the processed material causes the work hardening and the low thermal conductivity of the processed material, which is not only easy to cause the unusual abrasion, but also can cause the cutting edge of the knife and the abnormal rupture.

The solutions for the above problems are as follows:

A: use of tools with high thermal conductivity,

B: sharp cutting edge: chip breaker groove with a wide range of cutting pressure can be reduced, so that the chip can be very good control.

C: the best cutting conditions: improper processing conditions will reduce tool life.

D: select the appropriate tool: stainless steel cutting tool should have a very good toughness, cutting edge strength and coating film binding force is also high.