The defects analysis and numerical simulation of automobile brake hydro cylinder in permanent casting
Brake hydro cylinder is the key part of automobile hydraulic braking system, which usually works under high pressure condition. So, high safety factor of it is required to avoid accident. There are many kinds of casting defects such as shrinkage cavity, gas entrapment and slag enclosure are formed in the mold filling and solidification processes, which contribute to final casting performance. Based on the mathematical models of molding filling and solidification processes, the numerical simulation has been done. In the meanwhile, the defects forming reasons have been analyzed. According to the simulation results, two types of improved schemes have been analyzed and practiced respectively, and its workpiece defects were reduced largely. It is an effective way to improve the casting quality by advanced computer technology.
Lei Rao Xiaolong Li Ke Li
School of Mechanical-Electrical Engineering, Nanchang University, Nanchang, Jiangxi 330031, PR China
国际会议
桂林
英文
1-6
2010-11-16（万方平台首次上网日期，不代表论文的发表时间）