【摘要】 小直径铣刀是硬铣方式加工复杂型面淬硬模具必不可少的刀具之一,但其切入过程的崩刃、断刀现象非常突出。文中采用动力学仿真软件ADAMS,对小直径铣刀在不同切削参数条件下的切入过程进行仿真分析,以确定小直径铣刀切入过程的载荷、运动形式;然后根据仿真分析的载荷结果,用有限元分析软件ANSYS确定不同切削参数下,铣刀切入过程对刀刃的应力、变形影响,为寻求合理的切入条件、减少刀具破损和提高加工效率提供参考。更多还原

【Abstract】 Micro-end mill is one of absolutely necessary cutting tools for dry milling complex contours of hardened die and mold steels.Nevertheless chipping and breakage of the mill happened frequently in the cut-in processes.By means of the dynamic simulation software ADAMS,the cut-in processes of micro-end mill milling hardened die steel by different cutting parameters are analyzed.Therefore,the cutting load,motion and vibration modes of the micro-end mill in the cut-in process are provided.Further,according to the simulation results,the influence of the cutting parameters upon the strain and deformation of the cutting edges are aquired by means of the finite element analysis software ANSYS.The simulation results show that automatic dynamic analysis of micro-end mill can discover the proper cut-in condition efficiently,thus decrease the failure probability of cutting tools and finally increase the machining efficiency.更多还原