高速铣削Ti-10V-2Fe-3Al的刀具磨损试验研究  

Experiment Study on Tool Wear of High-speed Milling Ti-10V-2Fe-3Al

作　　者：袁芳 徐亮[1] 王新永[1] 王凯 陈旭辉[1] 宋楠 韩军[1] 严伟容 王松 YUAN Fang;XU Liang;WANG Xinyong;WANG Kai;CHEN Xuhui;SONG Nan;HAN Jun;YAN Weirong;WANG Song(Science and Technology on Advanced Functional Composites Laboratory,Aerospace Research Institute of Materials&Processing Technology,Beijing 100076,China)

机构地区：[1]航天材料及工艺研究所先进功能复合材料技术重点实验室,北京100076

出　　处：《机械制造与自动化》2023年第1期51-55,共5页Machine Building & Automation

摘　　要：针对切削加工Ti-10V-2Fe-3Al钛合金时刀具磨损迅速、加工效率低的问题,开展硬质合金刀具高速铣削Ti-10V-2Fe-3Al的刀具寿命试验,以研究刀具的磨损机理,分析刀面磨损的发展以及对切削力的影响。利用扫描电子显微镜观察了后刀面磨损区域的微观形貌并对元素成分进行了能谱分析。实验结果表明:高速铣削Ti-10V-2Fe-3Al时硬质合金刀具的磨损形式为后刀面带状磨损与局部崩刃,伴有明显的切屑黏附与热裂纹;磨损区域有工件材料的元素向硬质合金内扩散的迹象出现;切屑流的黏附与撕扯导致硬质合金的颗粒脱落,切削刃逐步退化为洼形区域,其与后刀面交界的棱边代替原切削刃进行切削直至剥落。To solve the problems of rapid tool wear and low processing efficiency of machining Ti-10V-2Fe-3Al alloy,the experiments on the tool life of high-speed milling Ti-10V-2Fe-3Al with the carbide insert were carried out to study the tool wear mechanism and analyze the development of flank wear and its influence over the cutting force.The scanning electron microscope was utilized to observe the microcosmic morphology of the wear region and make energy spectrum analysis on the element compositions.The experiment results show that in the process of high-speed milling Ti-10V-2Fe-3Al,carbide tool wear appears in the form of flank wear band and local edge chipping at the tool flank face,accompanied by obvious chip adhesion and comb cracks.The elements diffusion from the workpiece to tool material reveals its sign in the wear region.The adhesion and tearing of chip flow leads to the collapse of carbide grains,resulting in cutting edge degeneration to a crater-like region,togather with which,the intersection edge of flank face replaces the original cutting edge in cutting function until spalling.

关 键 词：高速切削 TI-10V-2FE-3AL 硬质合金刀具 刀具磨损 切削力 

分 类 号：TG714[金属学及工艺—刀具与模具]