SCD刀具高速切削SiCp/Al刀具磨损仿真分析

Simulation Analysis of SiCp/Al tool Wear in High Speed Cutting Based on SCD Tool

SiCp/Al复合材料采用Al合金作基体,用SiC颗粒作增强体,并按照一定的设计要求、体分比、分布情况,形成具有明显界面的多组相复合材料。此外SiCp/Al具有远优于单金属的综合优越性能,因此被广泛应用于航天仪器、半导体器件、交通运输等领域。本文结合ABAQUS有限元仿真对SiCp/Al进行刀具磨损和切削温度场进行研究,通过分析仿真结果发现SCD刀具磨损情况与SiC颗粒的大小、速度有关,磨损的类型是为材料脱落和崩刃,切削SiC颗粒时切削温度会急剧上升。

SiCp/Al composites are made of Al alloy as matrix and Si C particles as reinforcement. According to certain design requirements,volume fraction ratio and distribution, Si Cp/Al composites with obvious interfaces are formed. In addition, Si Cp/Al has far superior comprehensive performance than single metal, so it is widely used in aerospace instruments, semiconductor devices, transportation and other fields. In this paper, ABAQUS finite element simulation is used to study the tool wear and cutting temperature field of Si Cp/Al. By analyzing the simulation results, it is found that SCD tool wear is related to the size and speed of Si C particles, and the wear type is material shedding and edge breaking, the cutting temperature increases sharply when cutting Si C particles.