【摘要】 铝合金锻件在冷水中淬火时由于冷却速度快，残余应力集中，机械加工成　成品后应力释放，往往发生不良　　　　变　形，造成零件尺寸超差。作者研究分析了铝合金锻件在沸水中淬火后的残余应力、机械性能、抗腐蚀性及金相组织，认为在生产条件下铝合金锻件沸水淬火在技术上是合理的，可以明显减少残余应力。更多还原

【Abstract】 Cooling rat is quick when aluminium alloy forgings are quenched, which puts residval stresses together. The residual stresses will release when forgings are machined,the forging’s shape will distort and it wil l become waste product because its size isn’t up to the standard. Bolling water hardening can distinct reduce residual stresses when different alloy forgings are queched in different water temperature.In producing, boiling water hardening is f easible through study on residual stresses, mechanical properties, an ticorrode, metallograp hic structure and so on.更多还原