High Efficient Welded Joint Having Excellent Brittle Crack Propagation Stopping Performance and Method for Manufacturing the Same

• Main Authors: AN YOUNG HO, BAE HONG YEOL, HWANG WON TAEK, JEONG BO YOUNG
• Format: Patent
• Language: English; Korean
• Published: 09.05.2019
• Subjects: CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WELDING; WORKING BY LASER BEAM

The present invention discloses a high efficient welded joint having excellent brittle crack propagation stopping performance and a manufacturing method thereof. According to one embodiment of the present invention, the high efficient welded joint having the excellent brittle crack propagation stopping performance includes: an electro gas arc welding unit provided in a thickness of a board; a first flux cored arc welding unit provided on a first surface of the board; and a second flux cored arc welding unit provided on a second surface opposite to the first surface. 본 발명은 취성균열 전파 정지 성능이 우수한 고능률 용접 이음부 및 이의 제조방법에 대해 개시한다. 본 발명의 일 실시예에 따른 취성균열 전파 정지 성능이 우수한 고능률 용접 이음부는 판 두께 내부에 마련되는 일렉트로 가스 아크 용접부와 판의 제1면에 마련되는 제1플럭스코어드 아크 용접부와 1면과 반대되는 면인 제2면에 마련되는 제2플럭스코어드 아크 용접부를 포함한다.