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마찰교반용접에서 키홀 리필 기술 동향

Title
마찰교반용접에서 키홀 리필 기술 동향
Other Titles
Review of Keyhole Refilling Technology in Friction Stir Welding
Author
이세헌
Keywords
Friction stir welding; Keyhole; Refill; Resistance spot welding
Issue Date
2018-12
Publisher
대한용접접합학회
Citation
대한용접접합학회지, v. 36, no. 4, page. 58-62
Abstract
Friction spot welding is a kind of solid state welding process which can prevent welding defects observed in fusion welding processes. Friction stir welding inherently utilizes a rotating tool and a keyhole is formed after retreat of the tool like a welding crater. In this paper, two kinds of keyhole refilling techniques (1-step and 2-step processes) were introduced. 1-step refilling methods employed specially designed welding tools. The pin and shoulder (or sleeve) can be separately driven to stir the base material and refill the keyhole. In the 2-step refilling methods, friction stir and resistance spot processes were suggested as a successive process and optionally filler metal was supplied. Resistance spot process is more economical process than friction stir welding, and the keyhole was refilled without melting by selecting proper parameters.
URI
http://e-jwj.org/journal/view.php?doi=10.5781/JWJ.2018.36.4.6https://repository.hanyang.ac.kr/handle/20.500.11754/121080
ISSN
2466-2232; 2466-2100
DOI
10.5781/JWJ.2018.36.4.6
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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