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Comparative analysis of weldability using a three-point bending test of a movable iron core welder and a digital welder that outputs a sine wave

가동 철심형 용접기와 정현파를 출력하는 디지털 용접기의 3점식 굽힘시험을 이용한 용접성 비교 분석

  • 김종식 (한국폴리텍대학 충주캠퍼스 로봇특수용접과 ) ;
  • 이광호 (한국폴리텍대학 충주캠퍼스 로봇특수용접과 ) ;
  • 주이환 (삼성중공업 해양Hul설계팀 ) ;
  • 고종철 (포스테크(주) 총부무) ;
  • 윤경열 (한국폴리텍대학 홍성캠퍼스 스마트융합설비과)
  • Received : 2022.11.30
  • Accepted : 2023.01.09
  • Published : 2023.01.31

Abstract

In this study, in order to reduce energy that affects the natural environment, a moving iron core type welding machine and a digital welding machine (inverter type) with low power consumption are compared in shielded arc welding, and the parts that use less power and have the same weldability conditions are identified. want to check. The movable iron core welder uses alternating current that outputs a sine wave, and the digital welder also generates a sine wave alternating current, so it must have the same conditions, low power consumption, and the same weldability. However, weldability can be verified in various ways, but the analysis is limited to the qualification test in the field of national technical qualification welding.

본 연구에서는 자연환경에 영향을 주는 에너지를 절감하기 위해 피복아크용접에서 가동철심형 용접기와 전력사용량이 적은 디지털 용접기(인버터 방식)를 비교하여 전력 사용은 적으며 용접성은 동일한 조건을 갖춰야 하는 부분을 확인하고자 한다. 가동철심형 용접기는 정현파를 출력하는 교류를 사용하며 디지털 용접기 또한 정현파 교류를 발생시켜 동일 조건을 갖추고 전력사용량은 적으며 같은 용접성을 갖추어야 한다. 다만 용접성은 다양하게 검증할 수 있으나 국가기술자격 용접 분야의 자격시험으로 한정하여 분석하고자 한다.

Keywords

References

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