切削SiCp/6005Al复合材料的PCD刀具磨损  

PCD tool wear in cutting SiCp/6005Al composites

作　　者：林洁琼[1] 贾茹 周岩 谷岩[1] LIN Jieqiong;JIA Ru;ZHOU Yan;GU Yan(School of Mechanical and Electrical Engineering,Changchun University of Technology,Changchun 130012,China)

机构地区：[1]长春工业大学机电工程学院,长春130012

出　　处：《金刚石与磨料磨具工程》2023年第3期322-331,共10页Diamond & Abrasives Engineering

基　　金：国家自然科学基金(U19A20104)。

摘　　要：为研究SiCp/6005Al切削时的刀具磨损机制及刀具磨损对切削力、切削温度、工件表面质量的影响,进行不同转速V和不同进给速度f下的切削试验,观察每组试验刀具切削后的磨损形貌,并通过监测动态切削力和切削温度来探究刀具的磨损机制。结果表明:工件转速提高使切削温度明显升高,但对切削力的影响很小;进给速度提高使切削力明显升高,而切削温度的变化范围较小。改变进给速度带来的力载荷变化是影响前刀面磨损的主要因素,改变工件转速带来的切削温度变化是影响后刀面磨损的主要因素。此外,刀具磨损是磨粒磨损、黏结磨损的综合作用结果,且刀具磨损会对切削力、切削温度和加工表面质量产生不利影响。To study the tool wear mechanism of turning SiCp/6005Al and the influence of tool wear on cutting force,cutting temperature and workpiece surface quality,cutting experiments at different speeds V and different feed speeds f were carried out.Then the tool wear morphology of each group of experimental tools after cutting was observed and the tool wear mechanism was explored by monitoring the dynamic cutting force and cutting temperature.Finally,the influ-ence of worn tools on cutting force,cutting temperature and surface quality under different process parameters was stud-ied.The results show that the increase of workpiece speed significantly increases the cutting temperature,but it has little effect on the cutting force.However,the increase of feed speed significantly increases the cutting force and the vari-ation range of cutting temperature is small.The change of force load caused by changing feed speed is the main factor affecting the wear of rake face.The change of cutting temperature caused by changing the workpiece speed is the main factor affecting the flank wear.In addition,tool wear is the comprehensive result of abrasive wear and bonding wear.And it will have an adverse impact on cutting force,cutting temperature and machined surface.

关 键 词：刀具磨损 PCD刀具 SiCp/6005Al 切削温度 表面质量 

分 类 号：TG51[金属学及工艺—金属切削加工及机床] TG71TG58