High speed turning of Inconel 718 using PVD-coated PCBN tools

被引：34

作者：

Soo, Sein Leung ^{[1
]}

Khan, Sarmad A. ^{[1
,2
]}

Aspinwall, David K. ^{[1
]}

Harden, Peter ^{[1
]}

Mantle, Andrew L. ^{[3
]}

Kappmeyer, Gregor ^{[4
]}

Pearson, David ^{[5
]}

M'Saoubi, Rachid ^{[6
]}

机构：

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

[2] Univ Engn & Technol, Dept Ind & Mfg Engn, Lahore 54890, Pakistan

[3] Rolls Royce Plc, Mfg Technol, Derby DE24 8ER, England

[4] Rolls Royce Deutschland Ltd & Co KG, Mfg Technol, Hohemarkstr 60-70, D-61440 Oberursel, Germany

[5] Seco Tools UK Ltd, Springfield Business Pk, Alcester B49 6PU, Warwick, England

[6] Seco Tools AB, SE-73782 Fagersta, Sweden

来源：

CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2016年 / 65卷 / 01期

关键词：

Coating; Surface integrity; Nickel alloy; WEAR MECHANISMS; BINDERLESS CBN; CUTTING TOOLS; PERFORMANCE;

D O I：

10.1016/j.cirp.2016.04.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Five different coatings and two PCBN grades were evaluated when high speed turning Inconel 718. Tool life was 40% higher when employing TiSiN coated over uncoated inserts at 200 m/min. When operating at 300-450 m/min however, coatings provided no appreciable benefit. Workpiece surface roughness varied between similar to 0.25 and 1.05 mu m Ra while cutting forces were <300 N. Increased workpiece microhardness and microstructural deformation were apparent with worn inserts. Medium cBN content (65%) inserts generated near surface compressive residual stresses of approximately -440 MPa as opposed to values of -90 MPa (measured parallel to feed) when using low cBN content (50%) tools. (C) 2016 CIRP.

引用

页码：89 / 92

页数：4

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