Impacts of process parameters on cutting force in micro-milling of SLM formed workpiece
For the micro milling of Selective Laser Melting(SLM)formed parts,we take 316L stainless steel as our research object.By conducting a series of micro milling and cutting force measurement experiments on SLM formed parts,we study the impacts of key process parameters such as spindle speed,feed rate,and cutting depth on cutting force during the micro milling process.Our results show during micro milling,cutting depth is the most significant factor affecting the variation of cutting force.The cutting force increases approximately linearly with the rise of cutting depth while the impact of feed rate on cutting force is the least significant.As the spindle speed increases,the maximum combined cutting force and the fluctuation amplitude of cutting force exhibit features of a Salomon curve:increasing first and then decreasing,and later tending towards stability.When micro milling stainless steel 316L material SLM formed parts,a high feed rate helps achieve better cutting conditions,improving the cutting speed and better preserving the tool.
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