Comparison between hybrid laser-MIG welding and MIG welding for the invar36 alloy

Zhan, Xiaoli; Li, Yubo; Ou, Wenmin; Yu, Fengyi; Chen, Jie; Wei, Yanhong

doi:10.1016/j.optlastec.2016.06.001

Cited by 49 publications

(10 citation statements)

References 14 publications

(13 reference statements)

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“…Moreover, the values of the parameters that are ideal for each process separately, are likely not to be optimal for successful welding with HLAW due to mutual influence. Consequently, an accurate study [30] of all the parameters used in the hybrid welding process is the basis for the stability and repeatability of the process and obtaining a weld with excellent mechanical and dimensional characteristics.…”

Section: Hybrid Welding With Laser Beam and Electric Arc -Hlawmentioning

confidence: 99%

Hybrid laser arc welding: State of the art in technology

Petreski¹,

Runchev²,

Vrtanoski³

2021

Zavariv zavar konstrukcije

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Hybrid laser arc welding is complex process where two heat sources act simultaneously in a common weld pool. The synergy effect of laser beam and electric arc offers several advantages over other individual technological processes, such as: higher welding speed, increased productivity, deeper penetration, better gap bridging ability, stable process, less heat input to the welding material, etc. However, the combination of two heat sources in a single welding process leads to large number of parameters that need to be synchronized and optimized in order to obtain a perfect weld. This paper presents the current state of hybrid laser arc welding in terms of its development, industrial application and scientific research. The introduction part contains a general overview of the hybrid laser arc welding process, its advantages and operating principles, and chronological development. In the second part, welding parameters that directly influence on the hybrid process have been discussed. The third part presents the performance and weld qualities achieved by hybrid welding process in accordance with previous research. In the final part, examples of industrial application and conclusions for further research and development related to hybrid laser arc welding are given.

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Section: Hybrid Welding With Laser Beam and Electric Arc -Hlawmentioning

confidence: 99%

Hybrid laser arc welding: State of the art in technology

Petreski¹,

Runchev²,

Vrtanoski³

2021

Zavariv zavar konstrukcije

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“…The FEM-based analysis enables the fast creation of many variants of the process. In turn, the foregoing enables the faster and cheaper identification of an optimum welding technology [5], [12], [13].…”

Section: Verification Of Welded Joint Propertiesmentioning

confidence: 99%

Verification of Properties of Joints Made of Advances High Strength Steels in the Conditions of the Complex Thermal Cycles of the HPAW Process

Nowacki¹,

Sajek²

2018

eBIS

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The article discusses the primary issue related to the verification of properties of joints made in AHSS in relation to conventional structural steels and based on the identification of cooling time t 8/5. The solution suggested in the study involving the application of the Finite Element Method is based on two computational models. In addition the article presents a material model allowing for properties of single metallic phases and their interaction during the welding cycle. The study also describes the numerical model of the HPAW (plasma + MAG) heat source composed of two models predefined in the Simufact.Welding software programme corresponding to the nature of constituent processes. The research-related tests also involved welding simulations and experimental verification. The tests demonstrated the conformity of simulation results and the high usability of simulation when verifying properties of joints.

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“…As a result, residual stress and deformation were reduced in three-layer welding compared to two-layer welding [16]. Zhan et al compared MIG Welding with Layer Laser-MIG Hybrid Welding of Invar in terms of welding efficiency and deformation and found that the laser-MIG hybrid welding showed less deformation than MIG welding and the welding time was also reduced by eight times [17]. Bharat et al applied friction stir welding to Invar with a thickness of 12.7 mm and per-formed a cross sectional analysis and compared mechanical properties depending on pin tools.…”

Section: Introductionmentioning

confidence: 99%

A Study on Lap Joint Welding of Thin Plate ASTM F1684 Using Fiber Laser Welding

Kim

et al. 2021

Processes

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The International Maritime Organization (IMO) has developed stricter regulations on emission standards for sulfur oxides, etc., and the demand for Liquefied Natural Gas (LNG) is increasing as an alternative to satisfy these standards. This study relates to fiber laser welding, an approach which offers high-speed welding and low welding deformation for ASTM F1684, which has a low coefficient of thermal expansion (CTE) even in a cryogenic environment. In this study, through three preliminary experiments using 0.25 mm thick Invar, the conditions required to secure sufficient penetration depth and back bead were identified. Through the cross-sectional observation analysis, the welding conditions without defects were identified and the trend of penetration shape according to increasing welding speed was identified. Following a lap joint laser welding experiment under the secured conditions, the mechanical properties were evaluated through the shear strength test and the heat influence range of a fiber laser was identified through the temperature measurement of a welding part. As a result, it was confirmed that the shear strength of the lap joint laser welding part was 86.8% that of the base metal.

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Comparison between hybrid laser-MIG welding and MIG welding for the invar36 alloy

Cited by 49 publications

References 14 publications

Hybrid laser arc welding: State of the art in technology

Hybrid laser arc welding: State of the art in technology

Verification of Properties of Joints Made of Advances High Strength Steels in the Conditions of the Complex Thermal Cycles of the HPAW Process

A Study on Lap Joint Welding of Thin Plate ASTM F1684 Using Fiber Laser Welding

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