2018
DOI: 10.1007/s11661-018-4618-z
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On the Prediction of Hot Tearing in Al-to-Steel Welding by Friction Melt Bonding

Abstract: Aluminum alloy AA6061 was welded to dual-phase steel 980 (DP980) by the friction melt bonding (FMB) process. Hot tears have been suppressed by controlling the thermomechanical cycle. In particular, the welding speed and the thermal conductivity of the backing plate have been optimized. A finite-element thermomechanical model coupled with the Rappaz-Drezet-Gremaud (RDG) criterion has been used to explain these experimental observations. The hot tear susceptibility has been reduced with large thermal gradients a… Show more

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Cited by 5 publications
(1 citation statement)
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“…Therefore, a significant number of experimental trials are required to determine the optimum FMB parameters resulting in high quality welds. There are two main factors controlling the quality of the weld: the IM bonding layer and the defects present in the weld [20,21]. The thickness, morphology and, thus, properties of the IM bonding layer are determined by the thermal and pressure cycles seen by the interface during the FMB process.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, a significant number of experimental trials are required to determine the optimum FMB parameters resulting in high quality welds. There are two main factors controlling the quality of the weld: the IM bonding layer and the defects present in the weld [20,21]. The thickness, morphology and, thus, properties of the IM bonding layer are determined by the thermal and pressure cycles seen by the interface during the FMB process.…”
Section: Introductionmentioning
confidence: 99%