文献类型：期刊文献

英文题名：Enhancing Wear Resistance and Cutting Performance of a Long-Life Micro-Groove Tool in Turning AISI 201

作者：Wu, Jinxing He, Lin Wu, Yanying Zhou, Chaobiao Zou, Zhongfei Zhan, Gang Zhou, Tao Du, Feilong Tian, Pengfei Zou, Zichuan Zhang, Xiuhua

第一作者：Wu, Jinxing

通信作者：He, L[1];He, L[2]

机构：[1]Guizhou Minzu Univ, Sch Mech & Elect Engn, Guiyang 550025, Peoples R China;[2]Guizhou Univ, Sch Mech Engn, Guiyang 550025, Peoples R China;[3]Liupanshui Normal Colleague, Sch Min & Civil Engn, Liupanshui 553004, Peoples R China;[4]Guizhou Inst Technol, Sch Mech Engn, Guiyang 550003, Peoples R China;[5]State Owned Assets Supervis & Adm Commiss Guizhou, Guiyang 550004, Peoples R China

第一机构：Guizhou Minzu Univ, Sch Mech & Elect Engn, Guiyang 550025, Peoples R China

通信机构：corresponding author), Guizhou Minzu Univ, Sch Mech & Elect Engn, Guiyang 550025, Peoples R China;corresponding author), Liupanshui Normal Colleague, Sch Min & Civil Engn, Liupanshui 553004, Peoples R China.

年份：2021

卷号：11

期号：12

外文期刊名：COATINGS

收录：;Scopus(收录号：2-s2.0-85121610922);WOS:【SCI-EXPANDED(收录号:WOS:000736239800001)】；

基金：This study was supported by the National Natural Science Foundation of China (Grant No.51765009); and the Science and Technology Planning Project of Guizhou (Grant No. [2019]1166); Guizhou Provincial Department of education KY word [2020]248.

语种：英文

外文关键词：micro-groove; cutting force; cutting energy; tool wear; crater

摘要：Tool-chip friction increases cutting temperature, aggravates tool wear, and shortens the service life of cutting tools. A micro-groove design of the rake face can improve the wear performance of the tool. In this study, we used the finite element simulation "Deform" to obtain the temperature field distribution of the tool rake face. The size of the micro-groove was determined by selecting a suitable temperature field combined with the characteristics of tool-chip flow in the cutting process, and the tool was prepared using powder metallurgy. The three-direction cutting forces and tool tip temperature were obtained by a cutting test. Compared with the original turning tool, the cutting force and cutting temperature of the micro-groove tool were reduced by more than 20%, the friction coefficient was reduced by more than 14%, the sliding energy was reduced and the shear energy was greatly decreased. According to the analysis of tool wear by SEM (scanning electron microscope) and EDS (energy dispersive X-ray spectroscopy), the crater wear, adhesive wear and oxidation wear of the micro-groove tool were lower than those of the original turning tool. In particular, the change in the crater wear area on the rake face of the original tool and the micro-groove tool was consistent with the cutting temperature and the wear width of the flank face. On the whole, the crater wear area and the change rate of the crater wear area of the micro-groove tool were smaller. Due to the proper microgroove structure of the rake face, the tool-chip contact area decreased, and the second rake angle of the tool became larger. Hence, the tool-chip friction, cutting forces, cutting energy consumption were reduced, tool wear was improved, and the service life of the micro-groove tool was five times longer than that of the original tool.