Friction Stir Vibration Welding of Al5052 Alloys

  • سال انتشار: 1397
  • محل انتشار: پنجمین کنفرانس بین المللی آلومینیوم ایران
  • کد COI اختصاصی: IIAC05_050
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 468
دانلود فایل این مقاله

نویسندگان

M Abbasi

Faculty of Engineering, University of Kashan, Kashan, Iran

M Givi

Faculty of Engineering, University of Kashan, Kashan, Iran

B Bagheri

Department of Mining and Metallurgy, Amirkabir University of Technology, Tehran, Iran

چکیده

In the current research, a new method is applied to modify the conventional friction stir welding (FSW) process. Fixture, which fixes the workpieces, is shaken mechanically during FSW in a direction normal to weld line in order to increase the straining of weld region material. In other words, vibration of workpieces is accompanied by the rotating motion of tool. This new process can be described as friction stir vibration welding (FSVW). Al 5052 alloy specimens are welded by two welding methods, FSW and FSVW. Microstructure and mechanical properties of welded specimens are compared. Metallography analyses indicate that grain size decreases and hardness increases as FSVW method is applied. Tensile test results also show that strength and ductility values of friction stir vibration (FSV)- welded specimens are greater than those relating to friction stir (FS)-welded specimens. It is because of more work hardening of plasticized material, during FSVW, which leads to more generation and movement of dislocations. Correspondingly, grain size decreases and mechanical properties improve. Additionally, it is observed that the mechanical properties of the weld improve as vibration frequency increases

کلیدواژه ها

Friction stir vibration welding , Solid-state welding , Mechanical properties .

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.