Projection Friction Stir Spot Welding: A New Welding Technique for Creating Safe and Reliable Aluminum Welds
سال انتشار: 1399
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 200
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شناسه ملی سند علمی:
JR_IJOGST-9-3_005
تاریخ نمایه سازی: 23 خرداد 1400
چکیده مقاله:
A novel friction stir welding method called projection friction stir spot welding (PFSSW) was introduced to produce safe and reliable welds by using a pinless tool and a specially-designed projection on the surface of a backing anvil. This projection along with the tool rotation speed plays an important role in having a reliable joint with excellent mechanical properties and good surface appearance. This welding technique can be widely developed in oil and gas, as well as in automotive, aerospace, and transportation, industry. The effect of tool rotation speed (۱۰۰۰, ۱۶۰۰, ۲۰۰۰ rpm) on the hardness, microstructure, and mechanical properties of ۲۰۲۴ aluminum alloy sheets was investigated. The surface appearance of the welding zone showed that the keyhole was not formed, and the appearance of the weld was almost smooth. Fracture surfaces of the failed specimens present the interfacial fracture at the tool rotation speed of ۱۰۰۰ rpm and circumferential fracture at tool rotation speed of ۱۶۰۰ and ۲۰۰۰ rpm.
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نویسندگان
Ali Arabzadeh
Ph.D. Candidate, Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar, Iran
Seyed Mostafa Mousavizade
Assistant Professor, Department of Materials Science and Engineering, Faculty of Engineering, University of Gonabad, Gonabad, Iran
Bahman Korojy
Assistant Professor, Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar, Iran
Seyed Alireza Hosseini
Assistant Professor, Department of Materials and Polymer Engineering, Faculty of Engineering, Hakim Sabzevari University, Sabzevar, Iran
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