Experimental study on residual stress of milling medical magnesium alloy

6th Annual International Conference on Material Science and Engineering

Qiao, Yang^1 ; Guo, Peiquan^1 ; Wang, Shouren^1 ; Yang, Xuefeng^1

School of Mechanical Engineering, University of Jinan, SHANDONG

250022, China^1

关键词: Basic conditions;    Cutting parameters;    Fatigue performance;    Magnesium-calcium alloys;    Medical magnesium alloy;    Orthogonal regression;    Specific strength;    Surface residual stress;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/397/1/012046/pdf
DOI  :  10.1088/1757-899X/397/1/012046

来源: IOP

【 摘 要 】

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.