The performance of small diameter twist drills in deep-hole drilling

被引:26
|
作者
Heinemann, Robert [1 ]
Hinduja, Srichand
Barrow, George
Petuelli, Gerhard
机构
[1] Univ Manchester, Sch Mech Aerosp & Civil Engn, Manchester M60 1QD, Lancs, England
[2] S Westphalia Univ Appl Sci, Dept Mech & Automat Engn, D-59497 Soest, Germany
关键词
deep-hole drilling; twist drills; swarf disposal; tool life; MQL;
D O I
10.1115/1.2335859
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper investigates the performance of small diameter high-speed steel twist drills drilling boreholes with a depth of ten times the diameter into carbon steel AISI 1045 using minimum quantity lubrication. The performance of small twist drills is determined, first, by their deep-hole drilling capability, i.e., in how far the cutting forces can be kept at a noncritical level by maintaining the chip disposal, and, second, by their tool life. This work shows that both the deep-hole drilling capability and tool life of small drills are strongly dependent on their geometry, in particular the size of the chip flutes, and the flute surface topography.
引用
收藏
页码:884 / 892
页数:9
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