Gas Metal Arc Welding Using Novel CaO-Added Mg Alloy Filler Wire

Kang, Minjung; Ahn, Young-Nam; Kim, Cheol-Hee

doi:10.3390/met6070155

Cited by 3 publications

(3 citation statements)

References 24 publications

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“…Kang et al have studied CaO-added Mg alloy weld. Mechanical and metallurgical aspects of the weldments were analyzed after welding, and welding behaviors such as fume generation and droplet transfer were observed during welding [37].…”

Section: The Present Issuementioning

confidence: 99%

Advances in Welding Metal Alloys, Dissimilar Metals and Additively Manufactured Parts

2018

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Section: The Present Issuementioning

confidence: 99%

Advances in Welding Metal Alloys, Dissimilar Metals and Additively Manufactured Parts

2018

View full text Add to dashboard Cite

“…Mechanical and metallurgical aspects of the weldments were analyzed after welding, and welding behaviors such as fume generation and droplet transfer were observed during welding [37].…”

Section: The Present Issuementioning

confidence: 99%

Advances in Welding Metal Alloys, Dissimilar Metals and Additively Manufactured Parts

Casalino

2017

Metals

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Nowadays, strong, light-weight, multi-functional, high performing products are key for achieving success in the worldwide markets. Meeting those requirements calls for enabling technologies that lead to innovative and sustainable manufacturing [1].A joint technique is one or a combination of the available mechanical, chemical, thermal processes to create a bond between materials with a number of combinations and geometries. Welding processes of metal alloys use a thermal energy source that can either melt materials of similar compositions and melting points or produce coalescence at temperatures essentially below the melting point of the base materials being joined. Such well-known welding processes include thermal fusion joining processes and solid-state joining processes; the latter are gaining renewed interest.Among the thermal fusion joining processes, the most common process is electric arc welding. Several methods use the electric arc approach for fusion welding of steel [2], aluminum [3], titanium [4] and magnesium alloys [5]. The selection of filler material is critical for the quality of the dissimilar metal welds [6].Laser beam and electron beam welding are high-energy beam welding methods that can operate in either melt-in/conduction or keyhole mode. In the latter mode, the laser beam is highly effective at welding metals. Similar and dissimilar weld can be produced for appliance, automotive, and aerospace applications [7][8][9].Brazing and soldering involve a filler material, heated to its melting temperature, and applied between the mating parts, which do not melt. Recently, laser autogenous brazing has enabled the selective use of the unique properties exhibited by biocompatible materials such as stainless steel and shape memory materials, such as NiTi, to tailor the properties of implantable medical devices [10]. Important mid-temperature thermoelectric materials such as Pb Te-based alloys can be successfully brazed to form a thermoelectric module [11].Resistance spot welding, which dominates the steel body-in-white production, involves a strong current through the metal combination that heats up and finally melts the metals at localized points. A force is applied before, during and after the application of the current to confine the contact area at the weld interfaces and, in some applications, to forge the workpieces. Similar [12] and dissimilar [13] weld can be easily produced.Within the solid-state joining process, friction stir welding has gained a prominent position. Invented in 1991, it uses a non-consumable tool to join two facing workpieces without melting the workpiece material. Heat is generated by friction between the rotating tool and the workpiece material. This welding method has great capability at welding lightweight [14] and dissimilar weld [15]. Otherwise, friction welding is a process where the two pieces are moved relatively by means of an upsetting force. The relative motion heats the two pieces to a plastic-state. Two friction welding processes are available: linear friction...

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“…When melting or casting Mg alloys, small amounts of beryllium or toxic SF 6 gas are often used to prevent Mg ignition. Recently so-called "ECO Mg" alloys have been developed by adding Mg-Al 2 Ca into Mg alloys [1] and the resultant improved weldability of ECO Mg alloys has been demonstrated in the authors' previous studies [2,3]. Similarly, "ECO Al" alloys have also been devised wherein Mg-Al 2 Ca is used in place of elemental Mg. Several studies are ongoing to reveal the mechanical and metallurgical properties of the ECO Al 5xxx alloys [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Arc Fusion Welding of Mg-Al<sub>2</sub>Ca-Added Al 5xxx Alloys

Kang

Kim

2017

DDF

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When casting ECO Al alloys, Mg-Al2Ca is used as a substitute for elemental Mg during the alloying process. Several previous studies have determined the mechanical and metallurgical properties of the ECO Al 5052 alloy. In this study, the weldability of the ECO Al 5052 alloy was determined. Gas metal arc welding was performed, and the resultant mechanical and metallurgical aspects of the welds in ECO Al 5052 alloy and commercial Al 5052 alloy were examined. In comparison to the commercial Al 5052 alloy specimen, the welds produced in the ECO Al 5052 alloy exhibited a very narrow heat-affected zone and were not softened through grain coarsening. Consequently, almost 100% joint efficiencies were observed in ECO Al alloy welds, in comparison to joint efficiencies of only 82% in conventional Al 5052 alloy welds.

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Gas Metal Arc Welding Using Novel CaO-Added Mg Alloy Filler Wire

Cited by 3 publications

References 24 publications

Advances in Welding Metal Alloys, Dissimilar Metals and Additively Manufactured Parts

Advances in Welding Metal Alloys, Dissimilar Metals and Additively Manufactured Parts

Advances in Welding Metal Alloys, Dissimilar Metals and Additively Manufactured Parts

Arc Fusion Welding of Mg-Al<sub>2</sub>Ca-Added Al 5xxx Alloys

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