Design of Gating System for Auto Turbocharger Housing

Author of the article:HUANG Peng 1 , GAO Chao 1 , LU Chenguang 1 , ZHAO Leiming 2 , YANG Yi 2 , YANG Gang 2

Author's Workplace：1. Yibin Pushi Linkage Technology Co., Ltd., Yibin 645152, China; 2. School of Mechanical Engineering, Sichuan University, Chengdu 610065, China

Key Words： gating system design; simulation; ozan formula; large orifice outflow theory

Abstract：To meet the requirements of making multiple castings in one mold and verify the effectiveness of common
gating design theories for small steel casting, three gating systems with similar section shapes and different sizes were
designed with using the three common gating design theories (formula provided in the Foundry Technology Manual, Ozan
Formula and Large Orifice Outflow Theory) and simulated by Magmasoft. The simulated results showed that the gating
system designed using Large Orifice Outflow Theory is better and was put into production. Production results showed that
using cross section area ratio of sprue, runner and ingates at 1.2∶0.9∶1.0, good quality castings are obtained, scrap rate is
reduced, and pattern yield is increased by 8%.