硬质合金刮削滚刀刀刃强度的有限元计算

Finite-Element Analsis of the Mechanical Stress of Skiving Carbide Hob

借助有限元方法对硬质合金刮削滚刀刀刃的应力、应变分布值进行了计算，并以此为依据来判别其抗崩刃的原因。定量地分析出硬质合金凸曲面刮削滚刀在刮削硬齿面齿轮时，造成的机械应力小于平前刀面滚刀切削时侧刃的机械应力，表明该种新型滚刀的设计具有优优性，为其应用和推广提供了理论依据。

A new way to understand the mechanical characteristics of skiving carbide hob by using a finite-element analysis is presented. First the distribution of the stress and the stain iscalculated by a finite-element method(FEM)code,and the reasons against the hob broken depending on this way are told.The conclusion is obtained by quantitative analysis that themechanical stress of the lattest skiving carbide hob is less than the one of the commonskiving carbide hob when skiving the gears at last.It expresses the design of the lattestskiving carbide hob is stiperior. The way provides scientific basis for using and popularizingthe lattest skiving carbide hob.