Pengaruh variasi kecepatan putar dan diameter tool terhadap sifat mekanik sambungan fssw aluminium alloy 5052 dan baja ss400

Mekanika: Majalah Ilmiah Mekanika Pub Date : 2018-07-19 DOI:10.20961/MEKANIKA.V17I1.35046

Wahid Ramadhan, Nurul Muhayat, T. Triyono

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Abstract

Friction stir spot welding (FSSW) is a development from solid state welding to jointa different materials (dissimilar). Dissimilar FSSW is widely used in the automotive industry due to the advantages of joining these two materials with weight savings while exploiting the best strength. This research aims to know the effect of welding parameters of rotation speed and tool diameter on mechanical properties on dissimilar FSSW aluminum alloy 5052 and SS400 steel. Variations in rotational speed used is 800, 1250, 1600, 2000 rpm and tool diameter 10, 12, 14 mm. Plunge depth and dwell time in this research were made uniform. This research used a lap joint configuration with aluminum plate placed on the top and steel plate placed on the bottom. Physical characteristics were analyzed through observation of macro and microstructures, while mechanical characteristics through vickers hardness testing and shear tensile testing. The results indicate that the diameter of 10 mm tool and 1600 rpm rotation speed produce the highest tensile shear load value of 2.4 kN with interface fracture.

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搅拌摩擦点焊(FSSW)是由固态焊接发展到不同材料(异种材料)的焊接。由于将这两种材料结合在一起具有减轻重量的同时又具有最佳强度的优点，因此在汽车工业中得到了广泛的应用。本研究旨在了解转速和刀具直径焊接参数对不同FSSW铝合金5052和SS400钢力学性能的影响。使用的转速变化为800,1250,1600,2000 rpm和工具直径10,12,14 mm。在此研究中，沉降深度和停留时间是均匀的。本研究采用顶部放置铝板，底部放置钢板的搭接结构。通过观察宏观组织和微观组织分析其物理特性，通过维氏硬度测试和剪切拉伸测试分析其力学特性。结果表明:当刀具直径为10 mm，转速为1600 rpm时，最大拉伸剪切载荷值为2.4 kN，界面断裂;

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Mekanika: Majalah Ilmiah Mekanika

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