STUDY ON THE BIFURCATION AND CATASTROPHE OF METAL CUTTING PROCESS

Abstract

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 (gs1，gs2) for geometric parameter of cutting layer, and boundary points gs1 and gs2 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.

Key words: Bifurcation, Catastrophe, Metal cutting

CLC Number:

TG501

Wang Xibin;Shi Hanmin;Lu Tao. STUDY ON THE BIFURCATION AND CATASTROPHE OF METAL CUTTING PROCESS[J]. , 1997, 33(6): 20-25.

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STUDY ON THE BIFURCATION AND CATASTROPHE OF METAL CUTTING PROCESS

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