Workpiece surface integrity when slot milling γ-TiAl intermetallic alloy

被引：35
|
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
收藏
页码：53 / 56
页数：4
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