摘要
为研究K417镍基高温合金的车削特性,使用不同的刀具及切削参数开展试验研究,观测加工表面粗糙度和圆柱度的变化规律,优化车削K417镍基高温合金的切削参数。试验结果表明:在车削K417镍基高温合金时,PCBN车刀比硬质合金车刀更有优势;使用PCBN刀片进行车削时,随着进给速度的增加,表面粗糙度先缓慢增加后快速增加,圆柱度缓慢减小;随切削速度的增加,表面粗糙度先减小后增大;切削深度增加会导致表面粗糙度先增大后减小。在各切削参数中,进给速度对表面粗糙度影响最大,切削深度和切削速度对表面粗糙度影响较小。在切削速度vc=275m/min、切削深度ap=0.15mm、每转进给量fn=0.06mm/r时,切削效果较为理想,能满足表面粗糙度Ra小于0.8μm、圆柱度小于0.008mm的加工要求。
In order to study the turning characteristics of K417 nickel-based superalloy,experimental research is carried out by using different cutting tools and cutting parameters.By observing the changes of surface roughness and cylindricity,the cutting parameters of turning K417 nickel-based superalloy are optimized.The results show that PCBN turning tools have more advantages than cemented carbide turning tools when turning K417 nickel-base superalloy.When using PCBN tools for turning,as the feed rate increases,the roughness first increases slowly and then rapidly increases,and the cylindricity decrease slowly;as the cutting speed increases,the roughness first decreases and then increases;the increase in the depth of cut will cause the roughness to increase first and then decrease.Among the various cutting parameters,the feed rate has the greatest influence on the roughness,while the depth of cut and the cutting speed have less influences on the roughness.When the cutting speed vc=275m/min,the cutting depth ap=0.15mm and the feed per revolution fn=0.06mm,the cutting performance is ideal,which can ensure that the roughness is less than 0.8μm and the cylindricity is less than 0.008mm.
作者
申运锋
杨生国
郭壤
杨吟飞
陈妮
Shen Yunfeng;Yang Shengguo;Guo Rang;Yang Yinfei;Chen Ni(China Aerospace Science&Industry Nanjing Chenguang Group,Nanjing 210006,China;不详;College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
出处
《工具技术》
北大核心
2021年第6期25-29,共5页
Tool Engineering
基金
南京晨光集团横向课题(K417高温合金的车削特性研究)
江苏省自然科学基金青年项目(BK20180435)。
作者简介
第一作者:申运锋,高级工程师,南京晨光集团,210006南京市;通信作者:陈妮,博士,讲师,南京航空航天大学机电学院,210016南京市。
