Abstract
Magnesium calcium alloy has the basic condition and potential to improve the specific strength of medical metal materials, has good prospects for development. The residual stress caused by metal cutting has important influence on fatigue performance and corrosion resistance of parts. In this work, the residual stress of milling surface of magnesium alloy was measured by four-factor four-level orthogonal milling experiment, and the trend of residual stress with cutting parameters was analyzed. Furthermore, mathematical model of the relationship between residual stress and cutting speed, feed rate, axial and radial depth of cut was established using orthogonal regression analysis theory on the basis of finished surface residual stress results obtained.
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