Tool wear behaviour and workpiece surface integrity when turning Ti-6Al-2Sn-4Zr-6Mo with polycrystalline diamond tooling

被引：21

作者：

Pretorius, Cornelius J. ^{[1
]}

Soo, Sein Leung ^{[1
]}

Aspinwall, David K. ^{[1
]}

Harden, Peter M. ^{[1
,4
]}

M'Saoubi, Rachid ^{[2
]}

Mantle, Andrew L. ^{[3
]}

机构：

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

[2] Seco Tools UK Ltd, Alcester, England

[3] Rolls Royce Plc, Mfg Technol, Derby, England

[4] Element Six Ltd, Ascot, Berks, England

来源：

CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2015年 / 64卷 / 01期

关键词：

Surface integrity; Wear; Titanium; PCD TOOLS; TI-6AL-4V ALLOY; TITANIUM; MACHINABILITY; PERFORMANCE; MECHANISMS; TI6AL4V; LIFE;

D O I：

10.1016/j.cirp.2015.04.058

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper details the performance of a range of polycrystalline diamond (PCD) tools (similar to 1.3-39 mu m average diamond grain size) when turning Ti-6A1-25n-4Zr-6Mo with 150 bar cutting fluid. The alloy is used for aeroengine components such as turbine discs due to its superior mechanical and elevated temperature properties. Tool life improved from similar to 30 to 80 min with increasing grain size except with the ultra-coarse (similar to 39 mu m) PCD grade, which failed via chipping/edge fracture after similar to 8 min. In general, the principal wear modes were crater formation and workpiece adhesion. Workpiece integrity assessment showed no major subsurface damage with surface compressive residual stresses of similar to 600 MPa. (C) 2015 CIRP.

引用

页码：109 / 112

页数：4

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