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Coupled Simulative-Experimental Procedure for Studying the Solid State Bonding Phenomena

机译：耦合模拟 - 研究固态粘合现象的实验过程

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摘要

In extrusion operations, material solid state welding takes place thanks to the very high pressure and temperature at which the material undergoes between the several welding criteria developed, the attention was particularly focused on the Piwnik and Plata one. In this criterion a suitable parameter w, calculated as the interface pressure and the effective stress ratio integrated along the time, has been defined. According to this criterion the material should start to weld as this parameter exceed a limit value w_(lim). In the present paper a new procedure for the w_(lim) identification as function of the temperature, based on coupled experimental-simulative strategy, is proposed. In particular, flat rolling experimental tests of sandwiches made of two rectangular specimens in AA6082 alloy were performed.
机译：在挤出操作中，由于材料在开发的几种焊接标准之间经历的非常高的压力和温度来进行材料固态焊接，特别关注Piwnik和Plata一体的注意力。在该标准中，已经定义了作为沿着时间集成的界面压力和有效应力比计算的合适的参数W.根据该标准，材料应开始焊接，因为该参数超过极限值W_（LIM）。在本文中，提出了一种基于耦合的实验模拟策略的W_（LIM）识别的新方法，基于耦合的实验模拟策略。特别是，进行了AA6082合金中由两个矩形标本制成的夹层的平面轧制实验试验。

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