Optimization of Counter-pressure Casting process for Aluminum Alloy Reducer Front Cover

Author of the article:WANG Zhipeng, SU Xiaoping, KANG Zhengyang

Author's Workplace：School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing 211816, China

Key Words：aluminum alloy; reducer front case; differential pressure casting; numerical simulation

Abstract：Taking the front cover of aluminum reducer as the research object, the differential pressure casting process was simulated and analyzed by numerical simulation technology. According to the analysis of the solidification time, shrinkage porosity and cavity defects and the SDAS value of secondary dendrite spacing in the simulation results, the casting process parameters were improved and the cooling system was added, and a reasonable scheme was obtained. The results show that the casting solidifies sequentially, defects are eliminated and mechanical properties are enhanced.