Curved helical drill points for microhole drilling

被引：6
|
作者：
Chyan, HC [1 ]
Ehmann, KF [1 ]
机构：
[1] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE | 2002年 / 216卷 / 01期
关键词：
drill point; helical drill point; drill point grinding; microhole drilling;
D O I：
10.1243/0954405021519708
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The ubiquitous microdrills with planar point geometry used by industry suffer from a number of undesirable characteristics and limitations that influence their drilling performance with respect to hole quality and tool life. In this paper, a new family of drill points, the 'curved helical drill points', and the related grinding methods for their manufacture are introduced to alleviate the undesired characteristics and limitations of planar drills. The mathematical foundation and an analytical and graphical comparative drill point geometry analysis between curved helical drill points, linear helical drill points and planar drill points are presented.
引用
收藏
页码：61 / 75
页数：15
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