摘要
The influence of filling parameters including pouring temperature, filling speed, boost pressure and synchronous pressure on the fatigue of A357 alloy produced by counter pressure plaster casting was studied. The Taguchi method was used to investigate the relationship between the fatigue performance and filling parameters. The results show that filling speed is the most significant factor among the four parameters. Synchronous pressures is less influential on the fatigue life when the value of synchronous pressure is from 400 kPa to 600 kPa.
研究差压铸造工艺参数与石膏型铸造A357铝合金疲劳性能之间的关系。通过田口方法对浇注温度、充型速度、增压压力以及同步压力等浇注工艺参数对疲劳性能的影响进行评估。结果表明,在这4个工艺参数中,浇注速度为首要影响因素;而同步压力在400~600kPa之间变化时,对疲劳性能的影响不大。
