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Form-Error Analysis Based on Coupled Thermo-Mechanical FE Simulation of Multi-Cycle Forming Operations of Closed-Die Cold Forging Aluminium
Pages: 10-16
Year: Issue:  4
Journal: Journal of Dalian Railway Institute

Keyword:  冷锻 温度 有限元分析 误差分析 机械热力偶合;
Abstract: 在冷成形加工中因为工件和模具中的温度随时间变化而使工件的成形误差也随之变化,以前的成形误差分析仅涉及单个工件加工循环.同时考虑机械效应和热力效应对成形误差的影响,对批量生产多循环闭式冷锻铝材成形过程中工件的成形误差进行了有限元分析,给出了一个包含成形各个阶段所产生的成形误差的误差分析公式.该公式可用于诸如挤压成形等其他成形工艺.这一分析工作为高精密成形误差补偿方法的研究提供了指导.
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