Tool wear mechanisms involved in crater formation on uncoated carbide tool when machining Ti6Al4V alloy

被引:61
作者
Rashid, R. A. Rahman [1 ,4 ]
Palanisamy, S. [1 ,4 ]
Sun, S. [2 ]
Dargusch, M. S. [3 ,4 ]
机构
[1] Swinburne Univ Technol, Sch Engn, Fac Sci Engn & Technol, Hawthorn, Vic 3122, Australia
[2] RMIT Univ, Sch Aerosp Mech & Mfg Engn, Bundoora, Vic 3083, Australia
[3] Univ Queensland, Sch Mech & Min Engn, Queensland Ctr Adv Mat Proc & Mfg AMPAM, Brisbane, Qld 4072, Australia
[4] Def Mat Technol Ctr, Hawthorn, Vic 3122, Australia
关键词
Tool wear; Ti6Al4V; Crater wear; Adhesion; Attrition; Diffusion; Abrasion; TEMPERATURE RISE DISTRIBUTION; FRICTIONAL HEAT-SOURCE; METAL-CUTTING PROCESS; TITANIUM-ALLOYS; CHIP INTERFACE; DEFORMATION;
D O I
10.1007/s00170-015-7668-z
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
When machining titanium alloys at cutting speeds higher than 60 m/min using cemented carbide cutting tools, the tool wears out rapidly. With the ever-increasing use of titanium alloys, it is essential to address this issue of rapid tool wear in order to reduce manufacturing costs. Therefore, the intention of this study was to investigate all possible tool wear mechanisms involved when using uncoated carbide cutting tools to machine Ti6Al4V titanium alloy at a cutting speed of 150 m/min under dry cutting conditions. Adhesion, diffusion, attrition, and abrasion were found to be the mechanisms associated with the cratering of the rake surface of the cutting tool. The plastic deformation of the cutting edge was also noticed which resulted in weakening of the rake surface and clear evidence has been presented. Based on this evidence, the process of the formation of the crater wear has been described in detail.
引用
收藏
页码:1457 / 1465
页数:9
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