소성∙가공 (Transactions of Materials Processing)

  • 제26권3호
  • /
  • Pages.174-180
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  • 2017
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  • 1225-696X(pISSN)
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  • 2287-6359(eISSN)
한국소성∙가공학회 (The Korean Society for Technology of Plasticity and materials processing)
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가열된 금형에 삽입된 구리전극에 의한 중첩된 알루미늄 합금판재의 드로잉성형 동시 점용접 특성

Characteristics of Drawing and Concurrent Spot Welding of Overlapped Aluminum Plates with Copper Electrodes Inserted in Heated Dies

  • Kim, T.H. ;
  • Jin, I.T. (Department of Mechanical Engineering, Pukyong National University)
  • 투고 : 2017.05.02
  • 심사 : 2017.05.25
  • 발행 : 2017.06.01
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초록

In this study, a new spot welding with electric resistance heated dies is suggested for the spot welding of non-ferrous metal plates for drawing and concurrent spot welding. This welding method involves two heating processes such as heating by conduction of electric resistance heated dies and heating by resistance between contacted surfaces of two plates by welding current induced to copper dies for the fusion of contacted metal. This welding process has welding variables such as current induced in heated and copper dies, the inner diameters of heated dies, and edge shape of the copper dies. Experimental conditions for each current should be established to get successful welding strength. The welding strength could reach to the desired value in industrial fields under the following conditions of contact diameters of heated dies in this case of overlapped aluminum5052 plates with 0.3-mm thickness: inner and outer diameters of 5.0 and 16mm, respectively; diameter of copper dies, 5.0mm; heating current, 6.8kA in heated steel dies; welding current, 8.6 kA in copper dies.

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참고문헌

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