摘要
锆基合金属于高韧性、高强度且具有极高的温度敏感性的难加工材料,在车削时更易受车削温度的影响,使得刀具磨损加剧,降低刀具使用寿命。搭建车削实验平台,探究锆基合金刀具磨损机理,并对刀具表/界面元素进行分析,从而获得不同切削参数对刀具磨损的影响规律。结果表明:增大切削参数会使工件与刀具基体之间的摩擦加剧,刀具磨损更严重;前刀面磨损机理主要为黏结磨损和扩散磨损,其次磨粒磨损和氧化磨损;后刀面磨损机理主要为磨粒磨损,其次为黏结磨损、氧化磨损和扩散磨损。
Zirconium-based alloy is a difficult material with high toughness,high strength and high temperature sensi‐tivity,which is more susceptible to the influence of cutting temperature during turning,which makes the tool wear worse and reduces the tool life.Therefore,this study set up a turning experimental platform to explore the tool wear mechanism of zirco‐nium base alloy,and carried out element analysis on the tool table/interface,so as to obtain the influence law of different cut‐ting parameters on the tool wear.The results show that the increasing of the cutting parameters will intensify the friction be‐tween the workpiece and the tool substrate,leading to more severe tool wear;the wear mechanism of the front cutting surface mainly consists of adhesive wear and diffusion wear,followed by abrasive wear and oxidation wear;the wear mechanism of the rear cutting surface mainly involves abrasive wear,followed by adhesive wear,oxidation wear and diffusion wear.
作者
胡亚辉
胡川川
朱玉莹
刘天尧
刘婕
Hu Yahui;Hu Chuanchuan;Zhu Yuying;Liu Tianyao;Liu Jie(Tianjin University of Technology,Tianjin 300384,China;不详)
出处
《工具技术》
北大核心
2025年第7期21-25,共5页
Tool Engineering
基金
天津市自然科学基金(23JCYBJC00620)
天津市企业重点实验室开放基金项目(SY-04-202401)
天津市教学改革研究项目(A231006001)。
关键词
锆基合金
切削参数
刀具磨损
合金元素
zirconium-based alloy
cutting parameter
tool wear
element content
作者简介
第一作者/通信作者:胡亚辉,博士,教授,天津理工大学,300382天津市。
