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首页> 外文期刊>Journal of Materials Engineering and Performance >Effect of Brass Interlayer Sheet on Microstructure and Joint Performance of Ultrasonic Spot-Welded Copper-Steel Joints
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Effect of Brass Interlayer Sheet on Microstructure and Joint Performance of Ultrasonic Spot-Welded Copper-Steel Joints

机译：黄铜层间板对超声波焊接铜钢接缝微观结构和关节性能的影响

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摘要

Solid-state ultrasonic spot welding (USW) inevitably offers a potential solution for joining dissimilar metal combination like copper (Cu) and steel (SS). In this study, the USW has been performed on Cu (UNS C10100) and SS (AISI 304) with brass interlayer by varying various welding parameters, aiming to identify the interfacial reaction, changes in microstructure and weld strength. The highest tensile shear and T-peel failure loads of 1277 and 174 N are achieved at the optimum conditions like 68 mu m of vibration amplitude, 0.42 MPa of weld pressure and 1 s of weld time. The fractured surface analysis of brass interlayer and AISI 304 stainless steel samples reveals the features like swirls, voids and intermetallic compounds (IMCs). These IMCs are composed of CuZn and FeZn composite-like structures with similar to 1.0 mu m thickness. This confirms that the weld quality is specifically sensitive to the levels of input parameter combinations as well as the type of material present on the sonotrode side.
机译：固态超声波点焊（USW）不可避免地为加入铜（Cu）和钢（SS）等不同的金属组合提供潜在的解决方案。在该研究中，通过改变各种焊接参数，通过改变各种焊接参数，在Cu（Unt C10100）和SS（AISI 304）上进行USW，旨在识别界面反应，改变微观结构和焊接强度的变化。在68μm的振动幅度，焊接压力的0.42MPa和焊接时间为1 S的最佳条件下实现了1277和174n的最高拉伸剪切和T剥离失效载荷。黄铜中间层和AISI 304不锈钢样品的裂缝表面分析显示出漩涡，空隙和金属间化合物（IMC）等特征。这些IMC由Cuzn和Fezn合成的结构组成，厚度为1.0μm。这证实焊接质量对输入参数组合的水平特别敏感，以及超声波侧存在的材料类型。

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