Evaluation of workpiece surface integrity following point grinding of advanced titanium and nickel based alloys

被引：15

作者：

Curtis, D. T. ^{[1
,3
]}

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

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

Mantl, A. L. ^{[2
]}

机构：

[1] Univ Birmingham, Sch Mech Engn, Machining Res Grp, Birmingham B15 2TT, W Midlands, England

[2] Rolls Royce Plc, Mfg Technol, Global Mfg Ctr, Derby DE24 8ER, England

[3] Univ Sheffield, AMRC Boeing, Adv Mfg Pk,Wallis Way, Rotherham S60 5TZ, S Yorkshire, England

来源：

3RD CIRP CONFERENCE ON SURFACE INTEGRITY | 2016年 / 45卷

基金：

英国工程与自然科学研究理事会;

关键词：

Grinding; nickel alloy; titanium; INCONEL; 718; SUPERALLOYS;

D O I：

10.1016/j.procir.2016.02.343

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Experimental results are presented following point grinding of Ti-6Al-4V, gamma-TiAl and Udimet 720 nickel based superalloy using plain 15 mm diameter electroplated superabrasive (CBN and diamond) wheels employing 46 mu m grit. Surface roughness (Ra) was typically higher by up to similar to 36% on Ti-6Al-4V due to greater wheel wear and workpiece smearing/re-deposited material, corresponding to significant levels of wheel loading. While Udimet 720 exhibited minimal variation in microhardness parallel to the feed direction, strain hardened surfaces of up to similar to 100 HK0.025 above the bulk value were gamma-TiAl. In contrast, ground Ti-6Al-4V workpieces showed minor softening at the surface. Subsurface microstructural deformation was evident in both the Ti-6Al-gamma-TiAl samples, which extended to a depth of similar to 10 mu m. (C) 2016 The Authors. Published by Elsevier B.V.

引用

页码：47 / 50

页数：4

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