Bending of Drill and Radial Forces in Micro Drilling

被引：6

作者：

Horiuchi, Osamu ^{[1
]}

Masuda, Masami ^{[1
]}

Shibata, Takayuki ^{[1
]}

机构：

[1] Toyohashi Univ Technol, Dept Mech Engn, Tempaku Ku, Toyohashi, Aichi 4418580, Japan

来源：

ADVANCES IN ABRASIVE TECHNOLOGY XVI | 2013年 / 797卷

关键词：

micro drilling; position error; run-out; anisotropic rigidity; radial force; fatigue;

D O I：

10.4028/www.scientific.net/AMR.797.642

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper describes theoretical analysis of bending deflection and anisotropic rigidity of drill, and the induced radial forces in micro drilling. The main results obtained are as follows. (1) There are two different modes of drilling which cause bending deflection of drill and induce radial forces. They are position error mode and run-out mode. (2) The radial forces induced behave quite differently between the two modes. (3) The radial forces increases as the depth of hole increases, because the rigidity of drill beam increases. (4) The position error mode induces a cyclic stress in the drill which may cause a fatigue breakage.

引用

页码：642 / 648

页数：7

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