SLM成形件微铣削工艺参数对切削力的影响
Impacts of process parameters on cutting force in micro-milling of SLM formed workpiece
陈鹏举 1蒋国璋 1李鑫 2陈昕悦 1容芷君 1段现银1
作者信息
- 1. 武汉科技大学冶金装备及其控制教育部重点实验室,武汉 430081
- 2. 华中科技大学无锡研究院,江苏 无锡 214174
- 折叠
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.
Abstract
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.
关键词
选区激光熔融/316L不锈钢/微铣削/切削力Key words
SLM/316L stainless steel/micro-milling/cutting force引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据