科研之友
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摘要
Residual stress (RS) has been intensively studied as an important criterion for evaluation of the surface integrity of high-speed machining (HSM) in this article. Based on the elastoplastic material property, a valuable machining property of gradient distribution of the machining path to the machined surface with HSM ball end milling is observed via an experimental test. Furthermore, an experimental formula is deduced from HSM ball end milling on H13 die steel. A cumulative coefficient for this effect is obtained by the residual stress measurement data. This is one method of predicting the residual stress concentration zone using the formula and coefficient to calculate the residual stress along the machining path. Based on the result, a discussion is presented in different fields of elastoplasticity metal material.
