基于车铣技术的刀具磨损和破损分析  

Research on Tool Wear and Fracture Based on Turn-milling Technology

作　　者：金成哲[1] 贾春德[1] 

机构地区：[1]沈阳理工大学,沈阳110016

出　　处：《中国机械工程》2006年第14期1456-1459,共4页China Mechanical Engineering

基　　金：辽宁省教育厅科学研究计划资助项目(20040316);沈阳理工大学博士启动基金资助项目(20040307)

摘　　要：在车铣加工中心上,分别采用硬质合金和TiN涂层硬质合金刀片,对铝合金和不锈钢工件进行了车铣加工的刀具磨损试验,研究分析了车铣刀具的磨损和破损特征。研究表明,车铣铝合金的刀具磨损机理主要以刀具表层材料的黏结磨损为主,而车铣不锈钢的刀具磨损机理主要以刀具表层材料的疲劳—剥落磨损为主。车铣不锈钢时,刀具的损坏形式常常以微崩刃、前刀面的剥落和碎断等破损形态为主。Separately adopted carbide and TiN coated carbide to machine aluminum alloy and stainless steel, a series of turn--milling tool wear experiments had been done on a turn--milling machining center to analyze the tool wear and fracture. It is proved that the tool wear mechanism of turn--milling aluminum alloy is felt wear, and that of turn--milling stainless steel is fatigue--exfoliative wear. According to the research results it is also proved that the form of tool fracture in machining stainless steel by turn--milling is frequently cutter edge tiny collapse, rake material flake away and broken to pieces.

关 键 词：车铣 磨损机理 黏结磨损 疲劳-剥落磨损 破损 

分 类 号：TG501[金属学及工艺—金属切削加工及机床]