Friction-Stir-WeldingおよびGas-Tungsten- Arc-Weldingのハイブリット法による低炭素鋼の高速接合

杉本 一等, 朴 勝煥, 平野 聡, 波多 聰, 佐藤 裕, 粉川 博之, 石田 清仁

研究成果: Contribution to journalArticle査読

抄録

For the purpose of higher welding speed and lower force in friction-stir-welding (FSW), we investigated the feasibility of preheating using gas-tungsten- arc-welding (GTAW). It can be expected to assist heat input for the plastic flow by using GTAW with high energy density. Defect-free bonding by a GTAW-FSW hybrid process was successfully achieved at a welding speed less than 8.3mm/s, while normal FSW left a defect at welding speed of 5.0mm/s. The axial forces during friction stirring in the GTAW-FSW process were lower than 40% of that in the normal FSW. The joints of GTAW-FSW had stir zones with fine grains similar to the FSW joints. This process could obtain higher productivity, that is, higher welding speed and lower force than the conventional FSW. It is also possible to obtain a high strengthen and unique structure with fine grains of FSW.
寄稿の翻訳タイトルHigh speed welding of Friction-Stir-Welding for mild steel by Gas-Tungsten- Arc-Welding hybrid process
本文言語Japanese
ページ(範囲)26-30
ページ数5
ジャーナルYosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society
36
1
DOI
出版ステータス出版済み - 2018

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