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Effects of die-chamber channel length on the microstructure and mechanical properties of copper strip during continuous extrusion
Pages: 26-30
Year: Issue:  3
Journal: Journal of Plasticity Engineering

Keyword:  铜扁线连续挤压模腔通道长度回复再结晶数值模拟;
Abstract: 采用有限元数值模拟,分析铜扁线连续挤压成形中不同模腔通道长度下温度场分布规律;通过对工程试验的样品进行分析,得到了不同模腔通道长度下产品的微观组织和力学性能.结果表明,随着模腔通道长度的增加,腔体内坯料的温度逐渐升高,晶体的回复再结晶程度逐渐增大,晶粒随之长大;抗拉强度和硬度均随模腔通道长度的增加而降低;延伸率虽然也有所降低,但降低程度有限.
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