Abstract
Micro-drills were modeled as long twisted beams. Models for the critical speeds and the critical buckling loads were developed based on the finite element method of analysis. The effects of transverse shear, rotary inertia and gyroscopic moments were included in this analysis. The models have the capability of analyzing a wide variety of geometrical cross-sections. A computer program was developed for the calculation of the variations of the critical speeds and of the buckling loads. The effects of drill geometry, boundary condition, rotational speed, and cross-sectional area on the buckling loads and the critical speeds were analyzed.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 16-28 |
| Number of pages | 13 |
| Journal | Journal of Materials Processing Technology |
| Volume | 141 |
| Issue number | 1 |
| DOIs | |
| State | Published - Oct 1 2003 |
Funding
The authors gratefully acknowledge the support of the National Science Foundation under Grant number NSF DMI 98-13457 and of the NSF/DARPA funded Machine Tool Agile Manufacturing Research Institute (MTAMRI).
Keywords
- Drill motion
- Geometrical cross-sections
- Micro-drills
ASJC Scopus subject areas
- Ceramics and Composites
- Computer Science Applications
- Metals and Alloys
- Industrial and Manufacturing Engineering