Experimental Study on the Effects of Friction Stir Spot Welding Process Parameters on AL۲۰۲۴T۳ Joint Strength
Publish place: International Journal of Advanced Design and Manufacturing Technology، Vol: 14، Issue: 4
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_ADMTL-14-4_012
تاریخ نمایه سازی: 25 مرداد 1401
Abstract:
In this study, effects of process parameters of Friction Stir Spot Welding were investigated on Al۲۰۲۴T۳ which has poor weldability. Several spot welds were performed by the FSSW process on the ۲mm aluminium sheets. The effects of main process parameters such as tool Rotational Speed (RS), Normal Plunge Depth (NPD), and Dwell Time (DT) on the joint strength were investigated. By increasing the tool rotational speed, the joint strength increased, consequently. The mean failure load improved ۵۲% when the tool rotational speed increased from ۸۰۰ rpm to ۱۱۲۰ rpm, whereas increasing the rotational speed from ۱۱۲۰ to ۱۶۰۰ did not have significant effect on the failure load. The results showed, increasing the normal plunge depth from ۱.۵ to ۱.۷۵ millimetre led to an increase in the failure load of spot welds by about ۱.۶۲ times. Also, the ۳ seconds dwell time showed higher failure load compared to ۲ and ۵ seconds dwell time.
Keywords:
Aluminium ۲۰۲۴T۳ , Dwell time , Failure load , Friction stir spot welding , Normal plunge depth , Rotational Speed
Authors
Majid Farhang
School of Mechanical Engineering, College of Engineering, University of Tehran, Iran.
Mohammadreza Farahani
School of Mechanical Engineering, College of Engineering, University of Tehran, Iran.
Moein Enami
School of Mechanical Engineering, College of Engineering, University of Tehran, Iran.
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