CO 2 아-크 용접에서 가스 유량 및 용접 속도에 따른 용접성 연구

• 영문명: A Study on the Weldability with Gas Flow and Welding Speed for the CO 2 Arc Welding
• 발행기관: 한국산업기술융합학회(구. 산업기술교육훈련학회)
• 저자명: 고명훈(Myung-Hun Ko)
• 간행물 정보: 『산업기술연구논문지』산업기술교육훈련논문지 제20권 2호, 79~85쪽, 전체 7쪽
• 주제분류: 공학 > 공학일반
• 파일형태: PDF
• 발행일자: 2015.06.30

영문 초록

In this study, the effect of the flow rate of CO2 gas as the shielding gas on the weldability of the SS41 steel in the CO 2 gas arc welding process was examined experimentally. The welding characteristics due to the flow rate of CO 2 gas were investigated through the visual test for the beads, and the mechanical properties of the welding joints were evaluated through to the tension test, the bend test and the hardness test, and the microstructure of welding joints were observed to understand the heat effect by optical microscope. As the result, the external view of the bead was good and the mechanical properties as tensile strength, hardness, and bending strength were excellent when the flow rate of CO 2 gas is 15ℓ/min, and the welding condition; Welding current 300A, welding voltage 31V, and welding velocity 40㎝/min.

목차

Ⅰ. 서 론

Ⅱ. 이 론

Ⅲ. 실 험

Ⅳ. 실험결과 및 고찰

Ⅴ. 결 론

키워드

Shielding Gas 실드가스 Weldability 용접성 CO 2 Arc Welding 탄산가스 아-크용접 Welding Characteristics 용접특성치 Visual Test 외관검사 Flow Rate 유동률 Mechanical Properties 기계적성질 Welding Condition 용접조건