有色金属科学与工程Issue(4)：70-75,6.DOI:10.13264/j.cnki.ysjskx.2015.04.015
充型工艺参数对石膏型差压铸造A357铝合金疲劳强度的影响
Influence of filling parameters of counter pressure casting on the fatigue properties of A357 plaster mold cast
摘要
Abstract
Pouring temperature, filling speed, boost pressure and synchronous pressure are filling parameters of counter pressure casting, which have great influence on the filling and solidification process. At the room temperature, the stairs fatigue test was performed at the condition of stress ratio equal to 0.1. The Taguchi method was used to investigate the relationship between the fatigue performance and filling parameters. Results show that the value of fatigue strength with 1.0 ×106 cycle times variables with the filling parameters from 115 MPa to 166 MPa. Filling speed is the most significant factor among the four parameters. Effects of boost pressure, pouring temperature and synchronous pressure on the fatigue strength decrease successively.关键词
反重力铸造/A357/浇注温度/充型速度/增压压力/同步压力/田口方法Key words
counter pressure casting/A357/pouring temperature/filling speed/boost pressure/synchronous pressure/Taguchi method分类
矿业与冶金引用本文复制引用
李强,郝启堂,武海军,卢少平,孔令娇..充型工艺参数对石膏型差压铸造A357铝合金疲劳强度的影响[J].有色金属科学与工程,2015,(4):70-75,6.基金项目
稀贵金属综合利用新技术国家重点实验室开放课题资助 （）
