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Experimental Research on Semisolid Forging Process of 7A04 Alloy
Author(s): 
Pages: 40-42
Year: Issue:  11
Journal: HOT WORKING TECHNOLOGY

Keyword:  半固态模锻工艺7A04合金力学性能;
Abstract: 以两种状态的7A04合金为例,简要分析了二次加热工艺参数、模具预热温度等工艺参数对半固态模锻成形的影响,并重点研究了半固态模锻前后的显微组织变化及不同加热温度下的力学性能.结果表明:半固态模锻件的显微组织与合金的初始状态及其二次加热后的半固态组织密切相关;在同样变形条件下,经半固态模锻后,挤压后冷变形态合金的力学性能好于挤压态合金,其最佳变形温度分别为600℃和605℃.
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