Penetration and welding phenomena in YAG laser-mig hybrid welding of aluminum alloy

Uchiumi, Satoru; Wang, Jingbo; Katayama, Seiji; Mizutani, Masami; Hongu, Toshinori; Fujii, Kouji

doi:10.2351/1.5060378

Cited by 13 publications

(9 citation statements)

References 1 publication

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“…The penetration depth increased with a decreasing process distance, but it again became almost equivalent to that of single YAG laser welding at the process distance of 0 and 10 mm, as shown in Fig. 4 [24]. The angle of 30 o of the electrode from the laser beam axis was adopted in the experiments, and the GMAW wire was A5356 of 1.2 mm in diameter.…”

Section: Penetration Depthmentioning

confidence: 88%

“…From these results, it is apparent that the penetration depth in the hybrid process does not depend on the arc current (in the case of 200 A or less), but rather on the laser power. It was also identified that the penetration bead width increased with an increasing GMA arc current [24]. The YAG-GMA hybrid weld bead surface quality was better than that of the GMA-YAG hybrid weld.…”

Section: Fig 6 Comparison Of Weld Cross Sections With Respect Tomentioning

confidence: 93%

“…In this study, the Nd:YAG laser maximum power P = 4 kW and the GMAW maximum current 350A in the DCEP (Direct Current Electrode Polarity) pulsed arc mode were used. According to the report, the YAG laser beam absorption within argon plasma and resulting plasma shielding are expected to be negligible [24]. Fig.…”

Section: Penetration Depthmentioning

confidence: 97%

“…Fig. 4 The effect of process distance on penetration [24] Other research groups have also estimated when the laser beam and arc processes still act together and when the process is the most efficient. The results of a test [22] carried out on low carbon steel S355 of a thickness of 6 mm with a 6 kW CO 2 laser and Esab Aristo 2000 arc welding equipment proved to be interesting.…”

Section: Penetration Depthmentioning

confidence: 99%

See 3 more Smart Citations

The Influence of Parameters on Penetration, Speed and Bridging in Laser Hybrid Welding

Kah

Salminen

Martikainen

2011

mech

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Section: Penetration Depthmentioning

confidence: 88%

Section: Fig 6 Comparison Of Weld Cross Sections With Respect Tomentioning

confidence: 93%

Section: Penetration Depthmentioning

confidence: 97%

Section: Penetration Depthmentioning

confidence: 99%

See 2 more Smart Citations

The Influence of Parameters on Penetration, Speed and Bridging in Laser Hybrid Welding

Kah

Salminen

Martikainen

2011

mech

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“…Recent studies have mainly focussed on the reduction of porosities and the appearance of the bead 9 -21,23,25 but other studies, taking a different approach, have addressed the enlargement of the permissible gap 26 -28 . However, although there have been reports of laser-MIG arc hybrid welding being used in production lines 13,14 , since there are many parameters that have to be set for actual welding, and each of these parameters has a complex effect on the welding results, the development of the welding process remains imperfectly understood 21 .…”

Section: Introductionmentioning

confidence: 99%

Study of improvement of gap tolerance in laser MIG arc hybrid welding of aluminium alloy

Wang

Nishimura

Fujii

et al. 2009

Welding International

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Hybrid welding combining YAG laser or fibre laser with MIG arc was carried out on aluminium alloy, and the effects of setup conditions of a laser beam and a wire, and the laser beam parameters on wire melting phenomena and gap tolerance in butt joint were investigated. It was found that, in order to obtain a deeper penetration, the laser beam should be separated from the wire with a distance at which there was no direct interaction between a laser beam and a droplet during its transfer. On the contrary, in order to get a wider gap tolerance for a butt joint, for example, it was better for the laser beam to be set to cross with a wire over 2 mm so that the laser beam could directly irradiate on the wire surface to melt it. As a result, the arc current could be decreased so efficiently that the molten pool size formed by MIG is decreased and the gap tolerance increased.In the case of the utilization of a fibre laser, it was found that the wire melting phenomena were affected by the laser beam parameters such as the beam diameter and the defocused conditions when welding was not done at a focal position. It was clarified that even at the same laser beam diameter on the work surface, the wire melting phenomena could be different under the different defocused conditions. In the defocused conditions where the focal position was over the work surface, the molten droplet on the wire tip evaporated more easily than the case where the focal position was within the work surface.From the viewpoint of laser absorption by the wire or the molten droplet, according to an arc phenomenon approach, it was found that about 10% of laser energy was absorbed during hybrid welding when the laser beam was directly irradiated on the wire surface.

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Numerical study of the effect of laser-arc distance on laser energy coupling in pulsed Nd: YAG laser/TIG hybrid welding

Ning

Zhang

et al. 2016

Int J Adv Manuf Technol

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Penetration and welding phenomena in YAG laser-mig hybrid welding of aluminum alloy

Cited by 13 publications

References 1 publication

The Influence of Parameters on Penetration, Speed and Bridging in Laser Hybrid Welding

The Influence of Parameters on Penetration, Speed and Bridging in Laser Hybrid Welding

Study of improvement of gap tolerance in laser MIG arc hybrid welding of aluminium alloy

Numerical study of the effect of laser-arc distance on laser energy coupling in pulsed Nd: YAG laser/TIG hybrid welding

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