The machining of γ-TiAl intermetallic alloys

被引：131
作者：
Aspinwall, DK [1 ]
Dewes, RC
Mantle, AL
机构：
[1] Univ Birmingham, Sch Engn Mech & Mfg, Birmingham B15 2TT, W Midlands, England
[2] Rolls Royce PLC, Derby DE24 8BJ, England
来源：
CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2005年 / 54卷 / 01期
关键词：
titanium; machinability; integrity;
D O I：
10.1016/S0007-8506(07)60059-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Titanium intermetallic materials are likely to play a significant role in the production of future aeroengines. The paper details the machinabilty of a range of gamma titanium aluminide (gamma-TiAl) intermetallic alloys when turning, grinding, HSM, drilling, EDM and ECM. Comprehensive literature review data is augmented with experimental results for turning, turn-milling and temperature measurement when high speed milling. Despite the ability to produce crack free surfaces when grinding and HSM, turning and drilling remain problematic. Turned surfaces are in general characterised by workpiece smearing, numerous arc shaped cracks, subsurface lamellae deformation and significant strain hardening, although the use of PCD tooling and ultrasonic assisted cutting has been shown to minimise these effects.
引用
收藏
页码：99 / 104
页数：6
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