Dynamic characteristics of a drill in the drilling process

被引：12
|
作者：
Huang, BW [1 ]
机构：
[1] Cheng Shiu Inst Technol, Dept Mech Engn, Kaohsiung 833, Taiwan
来源：
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART B-JOURNAL OF ENGINEERING MANUFACTURE | 2003年 / 217卷 / 02期
关键词：
drilling process; pre-twisted beam; dynamic characteristics;
D O I：
10.1243/095440503321148803
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The dynamic characteristics of high-speed drilling were investigated in this study. To improve quality and produce a higher production rate, the dynamic characteristics of the drilling process need to be studied. A pre-twisted beam is used to simulate the drill. The moving Winkler-type elastic foundation is used to approximate the drilling process. A time-dependent vibration model for drilling is presented. The spinning speed, pre-twisted angle and thrust force effects of the drill are considered. The numerical analysis indicates that the natural frequency is suddenly reduced as the drill moves into a workpiece.
引用
收藏
页码：161 / 167
页数：7
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