Proceedings of the KWS Conference (대한용접접합학회:학술대회논문집)

The Korean Welding and Joining Society (대한용접접합학회)
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Evaluation of Friction Spot Joining Weldability of Mg alloys

마찰교반 점용접(FSJ)을 이용한 Mg 합금의 접합성 평가

  • 조현진 (포항산업과학연구원(RIST) 용접센터) ;
  • 김흥주 (포항산업과학연구원(RIST) 용접센터) ;
  • 방국수 (부경대학교 소재프로세스공학과) ;
  • 천창근 (포항산업과학연구원(RIST) 용접센터) ;
  • 장웅성 (포항산업과학연구원(RIST) 용접센터)
  • Published : 2005.11.17
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Abstract

In an attempt to optimize friction spot joining process of Mg alloys, effects of joining parameters such as rotating speed, plunging depth, and dwelling time on the joints properties were evaluated. Experimental tests were carried out for lap joined AZ31B-H24 sheets. A wide range of joining conditions could be applied to join Mg alloys without defects in the weld zone except for certain welding conditions with an insufficient heat input. The microstructures and hardness variations in the weld regions are discussed. For sound joints without defects, tensile shear strength of weld joints was higher approximately 116% than typical tensile shear strength of electrical resistance spot-welded joints for magnesium(Welding handbook, Vol 3, AWS).

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