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异形管材分流模挤压焊合过程金属流变及模具受力的模拟分析

发布时间:2018-10-11 19:03
【摘要】:针对采用有限元模拟时焊合面不能设置为刚性对称面的空心型材,其焊合过程不能模拟计算的问题,提出了基于有限元法结合逆向工程技术的焊合面网格重构技术的解决方法,并采用该方法对异形管材分流模挤压的焊合过程进行了模拟分析.研究结果表明:当挤压行程为33.1 mm时完成了焊合,焊合温度范围477~496℃,焊合室内静水压力为169~3 463 MPa,满足焊合要求;分流桥的焊合角部位所受应力最大,约为205 MPa.模具结构设计合理.
[Abstract]:In order to solve the problem that the welding joint can not be set as a rigid symmetric surface and the welding process can not be simulated by finite element simulation, a method of mesh reconstruction of welding joint based on finite element method and reverse engineering technology is proposed. This method is used to simulate and analyze the welding process of the extrusion of special-shaped pipe shunt die. The results show that when the extrusion stroke is 33.1 mm, the welding temperature range is 477 ~ 496 鈩,

本文编号:2264921

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