Control of Welding Cold Cracking with Trailing Electromagnetic Induction Heating in High Strength Steel Weldment
In this paper, a new technique, trailing electromagnetic induction heating during welding, has been purposed to control the welding cold cracks. During welding, the welded joint is heated timely by a induction heating coil closely following the welding electric arc, so that the cooling rate is reduced. Consequently, the amount of quenched structure is decreased, the toughness property of the welded joint is enhanced. The experimental results show that the new technique can successfully improve the resistance of cold cracking in welded joint of high strength steel.
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Document Type: Research Article
Publication date: September 1, 2012
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