The Analysis of Fracture Formation on Exit Edge in Pricision Machining
Burrs and fractures are two types of shapes formed on exit edges in pricision machining. They affect the quality of workpiece and the efficiency of prodcution seriously. A finite element model of fracture formation process to simulate the machining process of 2024-T3 Aluminum alloy is proposed. According to simulation results, five stages and variation of shear shain in fracture formation process are analyzed. It is found that shear strain plays an important role in fracture forming process. The method of determination of critical shear strain for fracture forming is proposed from simulation results.
Burr Fracture Formation mechanism Finite element method Pricision machining
Guicheng Wang Qinxi Shen Yunming Zhu
School of Mechanical Engineering, Jiangsu University, Zhenjiang, China
国际会议
广州
英文
174-178
2010-11-05（万方平台首次上网日期，不代表论文的发表时间）