Workpiece surface integrity when slot milling γ-TiAl intermetallic alloy

被引：38

作者：

Hood, Richard ^{[1
]}

Aspinwall, David K. ^{[1
]}

Soo, Sein Leung ^{[1
]}

Mantle, Andrew L. ^{[2
]}

Novovic, Donka ^{[3
]}

机构：

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

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

[3] Rolls Royce Plc, Turbines, Derby, England

来源：

CIRP ANNALS-MANUFACTURING TECHNOLOGY | 2014年 / 63卷 / 01期

关键词：

Titanium; Surface integrity; Slot milling; TITANIUM ALUMINIDE;

D O I：

10.1016/j.cirp.2014.03.071

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Slot milling is presented as a potential manufacturing route for aerospace component feature production when machining gamma-TiAl intermetallic alloy Ti-45Al-2Mn-2Nb + 0.8 vol.% TiB2XD using 2 mm diameter AlTiN coated WC ball nose end milling cutters. When operating with flood cutting fluid at v = 88 m/min, f = 0.05 mm/tooth, d = 0.2 mm, maximum flank wear was similar to 65 mu m after 25 min. SEM micrographs of slot surfaces show re-deposited/adhered and smeared workpiece material to a length of similar to 50 mu m. Brittle fracture of the slot edges was restricted to <10 mu m with sporadic top burr formation observed up to 20 mu m. Cross sectional micrographs of the slot sidewalls showed bending of the lamellae limited to within 5 mu m. (C) 2014 CIRP.

引用

页码：53 / 56

页数：4

共 9 条

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