Machinability study of α/β and β titanium alloys in different heat treatment conditions

被引：27

作者：

Khanna, Navneet ^{[1
]}

Sangwan, Kuldip S. ^{[1
]}

机构：

[1] Birla Inst Technol & Sci, Dept Mech Engn, Pilani 333031, Rajasthan, India

来源：

PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE | 2013年 / 227卷 / B3期

关键词：

Machinability; heat treatment; titanium; Ti54M; Ti10-2-3; cutting forces; friction coefficient; temperature;

D O I：

10.1177/0954405412469509

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this research, the effect of heat treatment on the machinability of alpha/beta (Ti54M) and beta (Ti10-2-3) titanium alloys was investigated experimentally for the as-received, annealed and solution-treated plus aged conditions. Forces and temperature, that is, life of the cutting tool, are mainly influenced by variation in cutting speed and feed rate; therefore, the depth of cut was maintained constant, while cutting speed and feed were varied. In solution-treated plus aged heat treatment condition, both the titanium alloys showed poor machinability in terms of specific forces, coefficient of friction and temperature. The poor machinability can be attributed to the strengthening effect, which is a result of interference with the motion of dislocation, due to the formation of secondary a precipitates. Ti10-2-3 alloy showed poorer machinability than Ti54M alloy in both the heat treatment conditions due to the presence of higher content of beta stabilizer elements (V and Fe).

引用

页码：357 / 361

页数：5

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