Tool Wear Performance of CVD-Insert during Machining of Ti-6%Al-4%V ELI at High Cutting Speed

被引:1
作者
Ibrahim, Gusri Akhyar [1 ]
Haron, Che Hassan Che [1 ]
Abd Ghani, Jaharah [1 ]
机构
[1] Univ Kebangsaan Malaysia, Dept Mech & Mat Engn, Bangi 43600, Malaysia
来源
ADVANCES IN MATERIALS PROCESSING IX | 2010年 / 443卷
关键词
Tool life; wear progression; wear mechanism; surface quality; CVD tool; Ti-6Al-4V; dry machining; COATED CARBIDE TOOLS; ALLOY;
D O I
10.4028/www.scientific.net/KEM.443.371
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Machining of titanium alloys as aerospace material that has extremely strength to weight ratio and resistant to corrosion at high-elevated temperature, become more interested topic. However, titanium alloys have low thermal conductivity, relative low modulus elasticity and high chemical reactivity with many cutting tool materials. The turning parameters evaluated are cutting speed (55, 75, 95 m/min), feed rate (0.15, 0.25, 0.35 mm/rev), depth of cut (0.10, 0.15, 0.20 mm) and tool grade of CVD carbide tool. The results that pattern of tool life progression is rapidly increase at the initial stage. It was due to small contact area between the cutting tool and the workpiece. At the first step of machining, the chip welded at the cutting edge but some chip removed away from the cutting edge. Wear mechanism produced are abrasive wear, adhesive, flaking, chipping at the cutting edge and coating delamination.
引用
收藏
页码:371 / 375
页数:5
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