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搅拌摩擦焊接接头的设计、制造和测试

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搅拌摩擦焊(FSW)是一个固态连接的过程,使用第三个身体工具加入两个接合表面。焊接工具和工件之间的摩擦热导致后者软化没有达到熔点,允许工具沿着焊线导线。然后机械地将两块金属接头的地方;软化金属可以加入使用机械压力(这是应用的工具),就像加入粘土或面团。在这个项目中,数控铣床用于焊接零件。被焊接的部分是由不同的材料如铝和铜。转速是变化从900转到1500转,而焊接速度保持不变在25毫米/分钟。涉及的其他参数是轴向载荷,达到200条。部分的尺寸(100 mmx50mmx3mm)焊接形成对接。不同的工具销的影响资料对焊接接头的质量也研究了焊接。 Different tool pin profiles considered are threaded, taper, circular/round and square. The tools are designed using Pro/E and are manufactured on a Lathe machine. After the parts are welded, various practical tests are performed on the welded parts that include the tensile strength, microstructure study and the Vickers’s hardness test. The experimental results proved that the highest tensile strength of the welded joint i.e., 81.073 N/mm2 was achieved with the threaded tool profile at speed 900 rpm with feed 25 mm/min and the highest hardness value of 267HV was achieved with the round tool profile at 1500 rpm and feed of 25 mm/min.

Ali Akbar Nadim Hakeemuddin艾哈迈德

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