摘要
针对选区激光熔融(selective laser melting,SLM)成形件微铣削加工,以316L不锈钢材料为实验对象,进行系列SLM成形件的微铣削加工与切削力测量实验,研究了微铣削过程中主轴转速、进给速度和切削深度等关键工艺参数对切削力的影响规律,结果表明:微铣削过程中,切削深度是影响切削力变化最显著的因素,切削力随着切削深度的递增呈近似线性增大,主轴转速与进给速度对切削力的影响效果不明显;随着主轴转速的增加,切削力合力的最大值与切削力波动幅度先增大后减小,然后趋于稳定的类Salomon曲线特征;对不锈钢316L材料SLM成形件进行微铣削时采用大进给速度能够获得较好的切削状态,可提升切削效率,增大刀具寿命。
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.
作者
陈鹏举
蒋国璋
李鑫
陈昕悦
容芷君
段现银
CHEN Pengju;JIANG Guozhang;LI Xin;CHEN Xinyue;RONG Zhijun;DUAN Xianyin(Key Laboratory of Metallurgical Equipmentand Control of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,China;Huazhong University of Science and Technology Wuxi Research Institute,Wuxi 214174,China)
出处
《重庆理工大学学报(自然科学)》
北大核心
2024年第12期78-84,共7页
Journal of Chongqing University of Technology:Natural Science
基金
国家自然科学基金项目(51605346)
湖北省重点研发计划项目(2022BAA059)。
