Machinability and surface integrity of RR1000 nickel based superalloy

被引：76

作者：

Soo, S. L. ^{[1
]}

Hood, R. ^{[1
]}

Aspinwall, D. K. ^{[1
]}

Voice, W. E.

Sage, C.

机构：

[1] Univ Birmingham, Machining Res Grp, Sch Mech Engn, Birmingham, W Midlands, England

来源：

CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2011年 / 60卷 / 01期

关键词：

Nickel alloy; Drilling; Surface integrity;

D O I：

10.1016/j.cirp.2011.03.094

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Alloy development for gas turbine components has produced materials able to maintain strength and integrity at operating temperatures up to similar to 1050 degrees C. Next-generation RR1000 nickel-based superalloy reflects this philosophy, albeit at the expense of machinability. Experimental data for drilling showed flank wear when operating at 45 m/min to be <100 mu m for a distance cut of 1800 mm (150 holes). Thrust forces measured 1600-1800 N. Re-deposited material on hole surfaces and drag/distortion was evident on cross-sectional micrographs. Roughness of end-milled specimens was <0.8 mu m Ra with minimal damage using new tools, however significant burring/increased microhardness (similar to 150 HK(0.05)) and white layer formation occurred when employing worn tools. (C) 2011 CIRP.

引用

页码：89 / 92

页数：4

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