• 제목/요약/키워드: Joining method

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Al 6061 합금의 마찰교반접합시 접합부의 역학적 특성에 관한 연구 (A Study on the Mechanical Characteristic in Al 6061 Alloys welded by Friction Stir Welding)

  • 방한서;김흥주;고민성;장웅성
    • Journal of Welding and Joining
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    • 제20권3호
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    • pp.105-108
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    • 2002

  • Al-alloy is utilized widely as a light-weight material to an automobile, a vessel and many kind of equipment, due to the light-weight and its characteristics that is a good tensile strength, elongation and tenacity for bearing heavy load and weight. Al-alloy has the good property of hot working, cold working and corrosion-resistant. But the exiting fusion welding by using Al has some economical and technical problems, but on the other hand, Friction Stir Welding (FSW) that is new joining method can settle the disadvantages that occur to the fusion welding and Is being applied and extended into the various industry fields. On this study, To analyze accurately the mechanical properties of joining area by FSW in Al 6061 alloy by using finite analysis program with finite element method. The size of HAZ and the thermal distribution is simulated and the mechanical properties around the FSW joining area to the Al-alloy 6061 is examined.

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신소재 금형펀치의 이종재 마찰용접 개발과 AE품질평가를 위한 연구 (Friction Welding of Dissimilar Press Punch Materials and Its Evaluation by AE)

  • 오세규;박일동;이원석
    • Journal of Welding and Joining
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    • 제15권2호
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    • pp.43-53
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    • 1997

  • The complete joining method for dissimilar press punch materials and its real-time evaluation method is not available at present. Brazing method has been used for joining them, but it is known that the welded joint by the brazing has the lower bonding efficiency and reliability than the diffusion welding. The friction welding with a diffusion mechanism in bonding was applied in this study. This work was carried out to determine the proper friction welding conditions and to analyze mechanical properties of friction welded joints of sintered carbide tool materials (SKNM50 for the blade part of press punch) to alloy steel (SCM440 for the shank part of press punch) using aluminum (A6061 for the interlayer material) as an insert material between the sintered carbide tool materials and the alloy steel. In addition, acoustic emission test was carried out during friction welding to evaluate the weld quality.

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