Residual stress in steel appear to reduce when increasing cutting speed up to a certain level. What is the mechanism behind this phenomena? Measured residual stress appears to increase very quickly below a certain cutting speed, reduce slowly in a large interval, and increase again once a critical velocity has been attained.
Is it the change in the cutting process that creates this change? Similar effect is observed for cutting forces. Why?
Caner Simsir
The answer is complicated as it depends heavily on the material, cutting method, cooling conditions etc. That`s why there is no universal answer. The best way is to check it by measurements and cutting experiments.
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