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首页> 外文期刊>Journal of Manufacturing Processes >Through-thickness friction stir processing; a low-cost technique for fusion welds repair and modification in AA6061 alloy
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Through-thickness friction stir processing; a low-cost technique for fusion welds repair and modification in AA6061 alloy

机译：全厚度摩擦搅拌加工； AA6061合金的低成本熔焊修复和改性技术

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摘要

In the present study, gasmetal arc welded (GMAW) joints of AA6061 alloy were subjected to the friction stir processing technique in the through-thickness direction (henceforth named trough-thickness FSP) to modify the surface and the bulk of the welds. Additionally, the effect of GMAW heat input on the microstructural and mechanical properties of the welds was investigated after processing. The results indicate that the majority of the welding defects would be eliminated. In addition, the mechanical properties including hardness, tensile strength were recovered. The processed welds showed tensile elongation up to 12% and tensile fracture occurred in base metal. the microstructure of the weld was modified as well in whole thickness of the welds.
机译：在本研究中，对AA6061合金的气金属电弧焊（GMAW）焊缝在厚度方向（以下称为槽厚FSP）进行了摩擦搅拌处理技术，以改变焊缝的表面和整体。此外，在加工后研究了GMAW热输入对焊缝的组织和力学性能的影响。结果表明将消除大多数焊接缺陷。另外，恢复了包括硬度，抗张强度的机械性能。加工后的焊缝显示拉伸伸长率高达12％，母材中发生拉伸断裂。焊缝的微观结构以及整个焊缝的厚度也被改变。

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