Experimental Study on the Effects of Friction Stir Spot Welding Process Parameters on AL۲۰۲۴T۳ Joint Strength

سال انتشار: 1400
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 89

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شناسه ملی سند علمی:

JR_ADMTL-14-4_012

تاریخ نمایه سازی: 25 مرداد 1401

چکیده مقاله:

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.

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نویسندگان

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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