Melting efficiency calculation of “finite-element-modeled” weld-bead and “experimental” weld-bead for laser-irradiated Hastelloy C-276 sheet

Bal, Kalinga Simant; Majumdar, Jyotsna Dutta; Choudhury, Asimava Roy

doi:10.1007/s40194-023-01515-5

Cited by 2 publications

(2 citation statements)

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“…And, lately, Bal et al [8] reported values values ranging from 0.388 to 0.569 for laser beam welding, which makes any comparison with standard GMAW impossible. In this work, for instance, the standard GMAW values of melting efficiency varied on average from approximately 0.42 to 0.58, which is close to what Hirata et al [3] reported.…”

Section: Melting Efficiency Saturation Limitmentioning

confidence: 99%

“…They found that using a dry contact tip caused the melting efficiency increase to approximately, on average, 0.33 compared to conventional UW-FCAW, which presented on average a melting efficiency of 0.25. Bal et al [8] used finite element analysis (FEA) to assess melting efficiency on laser beam welding of Hastelloy C-276 in the bead-on-plate configuration. They found that the melting efficiency increased with an increase in nominal heat input (J/mm).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Melting Efficiency in Cold Wire Gas Metal Arc Welding Using 1020 Steel as Substrate

Ribeiro,

Assunção,

Gerlich

2024

Metals

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A key welding parameter to quantify in the welding process is the ratio of the heat required to melt the weld metal versus the total energy delivered to the weld, and this is referred to as the melting efficiency. It is generally expected that the productivity of the welding process is linked to this melting efficiency, with more productive processes typically having higher melting efficiency. A comparison is made between the melting efficiency in standard gas metal arc welding (GMAW) and cold wire gas metal arc welding (CW-GMAW) for the three primary transfer modes: short-circuit, globular, and spray regime. CW-GMAW specimens presented higher melting efficiency than GMAW for all transfer modes. Moreover, an increase in plate thickness in the spray transfer regime caused the melting efficiency to increase, contrary to what is expected.

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Section: Melting Efficiency Saturation Limitmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%