SLM成形件切削比能模型建立及影响因素分析  

Specific cutting energy modeling and analysis of influencing factors by SLM forming parts

作　　者：苏风啸 权涛 李俊 SU Fengxiao;QUAN Tao;LI Jun(Key Laboratory of Metallurgical Equipment and Control of Ministry of Education,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China)

机构地区：[1]武汉科技大学冶金装备及其控制教育部重点实验室,湖北武汉430081

出　　处：《农业装备与车辆工程》2024年第5期100-104,共5页Agricultural Equipment & Vehicle Engineering

基　　金：国家自然科学基金青年基金(51605346)。

摘　　要：选区激光熔融(SLM)成形件在通过后处理加工提升表面质量时会消耗大量能量,而通过优化切削比能可以提高材料去除率和降低切削力,进而减小加工过程中的能量消耗。因此以SLM Inconel 718成形件为研究对象,建立基于切削力的切削比能模型。结合微铣削正交实验,拟合得到SLM Inconel 718微铣削切削比能与铣削参数的经验公式,并研究不同铣削参数对切削比能的影响规律。结果表明,SLM Inconel 718切削比能经验公式拟合程度在95%以上,切削深度对切削比能影响很小,切削比能随主轴转速和每齿进给量的增加而增加。Selective laser melting(SLM)formed parts consume significant energy when improving surface quality through post-processing.However,optimizing the specific cutting energy could improve material removal rate and reduce cutting force,thereby redue energy consumption during the processing.Therefore,taking the SLM Inconel 718 formed parts as the research object,a cutting specific energy model based on cutting force was established.Combined with the orthogonal experiment of micro milling,an empirical formula for the specific cutting energy and milling parameters of SLM Inconel 718 micro milling was fitted,and the influence of different milling parameters on the specific cutting energy was studied.The results showed that the fitting degree of the SLM Inconel 718 specific cutting energy empirical formula was over 95%,and the cutting depth had little effect on the specific cutting energy.The specific cutting energy increased with the increase of spindle speed and feed rate per tooth.

关 键 词：选区激光熔融 切削比能 微铣削 SLM Inconel 718 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]