Heat treatment process for semi-solid thixoformed A356 alloy bush cap was optimized by orthogonal method under the condition of heating in resistance furnace.

• 利用电阻炉加热 ,采用正交设计方法 ,优化了半固态A3 5 6铝合金触变成形件轴瓦盖的热处理工艺 ,并进行了硬度测试。