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Mg-6.7 wt.% 알루미늄 합금의 GMA 및 GTA 용접 특성평가Weldability Evaluation of GMAW and GTAW for Al-6.7 wt.% Mg Alloy
- Other Titles
- Weldability Evaluation of GMAW and GTAW for Al-6.7 wt.% Mg Alloy
- Issue Date
- Oct-2021
- Publisher
- 대한용접접합학회
- Keywords
- 5xxx series aluminum alloy; High Mg weight; Gas metal arc welding; Gas tungsten arc welding; Mechanical properties; Chemical properties
- Citation
- 대한용접접합학회지, v.39, no.5, pp 471 - 479
- Pages
- 9
- Indexed
- KCI
- Journal Title
- 대한용접접합학회지
- Volume
- 39
- Number
- 5
- Start Page
- 471
- End Page
- 479
- ISSN
- 2466-2232
2466-2100
- Abstract
- In this study, the arc weldability of an aluminum alloy was investigated based on its Mg content. The base materi- als used in the experiments were aluminum with a Mg content of 6.7 wt.% (referred as Al-6Mg) and commercial Al5083-O. The weldability of two types of fusion welding methods was evaluated: gas metal arc welding (GMAW) and gas tungsten arc welding (GTAW). The tensile strength, hardness, alloy composition, and microstructure proper- ties of the welds of two types of the aluminum alloys were compared. The tensile strength values of the GMAW and GTAW welds of Al-6Mg were 20% and 10% higher than those of Al5083-O, respectively. The weld hardness of the GMAW and GTAW welds of both aluminum alloys were similar. Al-6Mg by GMAW and GTAW were smaller than those of Al5083-O. Based on the results of analysis of the welds, the residual magnesium content was as high as 37% by GMAW and 30% by GTAW.
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Collections - 서울 공과대학 > 서울 기계공학부 > 1. Journal Articles
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Related Researcher
- Lee, Seung Hwan
- COLLEGE OF ENGINEERING (SCHOOL OF MECHANICAL ENGINEERING)