Abstract
Bifurcation and catastrophe would emerge in some unstable process of metal cutting. It's principle and characteristics are analyzed based on a theoretical model of non-free-cutting, and verified through cutting test. The study reveals that: There is a fork domain (g s1 , g s2) for geometric parameter of cutting layer, and boundary points g s1 and g s2 are in the region of g′ s = 1. It is the multi-extremum of cutting power that cause the bifurcation of chip ejection angle. The change of chip flow state in fork domain is a typical cusp catastrophe. The catastrophe and its lag phenomenon make a great effect on cutting force and chip form.
| Original language | English |
|---|---|
| Pages (from-to) | 25 |
| Number of pages | 1 |
| Journal | Jixie Gongcheng Xuebao/Chinese Journal of Mechanical Engineering |
| Volume | 33 |
| Issue number | 6 |
| Publication status | Published - 1997 |
Keywords
- Bifurcation
- Catastrophe
- Metal cutting