Position welding using disk laser-GMA hybrid welding

• Autorzy: Kim C.-H. , Lim H.-S. , Kim J.-K.
• Języki publikacji: EN

Abstrakty

EN

Purpose: Position welding technology was developed by using disk laser-GMA hybrid welding in this research. Design/methodology/approach: The effect of hybrid welding parameters such as the shielding gas composition and laser-arc interspacing distance were investigated for the bead-on-plate welding. The pipe girth welding was implemented and the adequate arc welding parameters were selected according to the welding position from a flat position to an overhead position. Findings: The optimized shielding gas composition and laser-arc interspacing distance for disk laser-GMA hybrid welding were 80% Ar-20% CO2 and 2mm, respectively for the bead-on-plate welding. The sound welds could be achieved even in the pipe girth welding, but the proper joint shape should be prepared. Research limitations/implications: The laser-arc hybrid welding was implemented for pipe girth welding as a kind of 3-dimensional laser welding and the process parameters could be optimized according to the various target materials and sizes. Practical implications: The optimized process parameters for the disk laser-arc hybrid welding can extend the application of the laser hybrid welding technology. Originality/value: This research showed the possibility of the disk laser-GMA hybrid welding as new pipe girth welding technique. The behaviour of molten pool and droplet transfer could enhance understanding of the hybrid welding.

Słowa kluczowe

EN

welding; laser-arc hybrid welding; position welding; pipe girth welding

PL

spawanie; spawane stanowisko; laser hybrydowy

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2008
• Tom: Vol. 28, nr 1
• Strony: 83--86
• Opis fizyczny: Bibliogr. 15 poz., il., tab., wykr.

Twórcy

autor

Kim C.-H.

autor

Lim H.-S.

autor

Kim J.-K.

• Advanced Joining Technology Team, 7-47 Songdodong, Incheon, South Korea,

Bibliografia

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