高速硬切削参数对切削力影响的数值模拟

摘要

建立了淬硬钢高速切削的有限元模型,通过Johnson-Cook(JC)工件材料模型及JC失效准则来模拟切屑的形成过程；并研究了背吃刀量、刀具前角和刀尖圆弧半径等参数对切削力的影响规律.%In this paper, a finite clement model of high - speed cutting for hardened steel is created. By Johnson - Cook (JO materials model and JC fracture criterion, the chip formation is simulated. Also the influence of parameters such as the cutting depth, the tool rake angle, the fillet radius of the tool on cutting force is investigated.