Influence of milling parameters on machining performances and surface quality of ZK61M magnesium alloy

Abstract

The milling parameters have an important in uence on machining performance and surface quality of metal materials. In this paper, the differences in machining and corrosion resistance properties of ZK61M plates under different processing parameters were analyzed by side milling. The milling process was simulated to explore the change laws of milling temperature and milling force. The hardness of machined surface was observed by Vikers hardness tester. The surface quality and the corrosion performances under different spindle speeds were observed by 3D ultra-depth of eld microscope. The results showed that the milling temperature was increased with the increase of spindle speed and feed speed. The in uence of spindle speed and feed speed on milling force along the milling direction and the cutter direction was signi cant different. The milled surface had better quality when the spindle speed increased or the feed speed decreased. The hardness standard deviation of machined surface was decreased as the surface quality became better. Besides, it was summarized that how spindle speed played a role in corrosion resistance performance by affecting residual stress and metal oxides.