INFLUENCE OF SHIELDING GAS COMPOSITION ON WELD PROFILE IN PULSED ND:YAG LASER WELDING OF LOW CARBON STEEL

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JOKAR M.; MALEKGHAINI F.; TORKAMANY M.J.; SHEIKHI M.

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Journal: Iranian Journal of Physics Research Year:2014 | Volume:14 | Issue:3 Page(s): 41-46

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Information Journal Paper

Title

INFLUENCE OF SHIELDING GAS COMPOSITION ON WELD PROFILE IN PULSED ND:YAG LASER WELDING OF LOW CARBON STEEL

Author(s)

JOKAR M. | MALEKGHAINI F. | TORKAMANY M.J. | SHEIKHI M. | Issue Writer Certificate

Keywords

WELD AREAQ2

WELD DEPTHQ2

WIDTH RATIOQ2

LASER WELDINGQ2

SHIELDING GASQ2

WELD PROFILEQ2

PLASMA PLUMEQ2

Abstract

WELD AREA and WELD DEPTH/width ratio can be considered to be of the most important geometrical factors in pulsed LASER WELDING. The effects of carbon dioxide and oxygen additions to the argon SHIELDING GAS on the weld properties in pulsed LASER WELDING of low carbon steel is investigated. Presence of carbon dioxide and oxygen up to 10 and 15 percent respectively decreases the weld geometrical factors. But, at higher levels of additions, the weld geometrical factors will increase. It is observed that the PLASMA PLUME temperature decreases from 6000K to 5500K with the addition of 15% carbon dioxide but increases to 7700K with 25% carbon dioxide addition. Increase in laser absorption coefficient, laser energy absorption, formation of oxide layer on the work-piece surface, exothermic reactions and their competitive effects can be considered as the competing phenomena involved in such a behavior in the WELD PROFILE.

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APA: Copy

JOKAR, M., MALEKGHAINI, F., TORKAMANY, M.J., & SHEIKHI, M.. (2014). INFLUENCE OF SHIELDING GAS COMPOSITION ON WELD PROFILE IN PULSED ND:YAG LASER WELDING OF LOW CARBON STEEL. IRANIAN JOURNAL OF PHYSICS RESEARCH, 14(3), 41-46. SID. https://sid.ir/paper/1410/en

Vancouver: Copy

JOKAR M., MALEKGHAINI F., TORKAMANY M.J., SHEIKHI M.. INFLUENCE OF SHIELDING GAS COMPOSITION ON WELD PROFILE IN PULSED ND:YAG LASER WELDING OF LOW CARBON STEEL. IRANIAN JOURNAL OF PHYSICS RESEARCH[Internet]. 2014;14(3):41-46. Available from: https://sid.ir/paper/1410/en

IEEE: Copy

M. JOKAR, F. MALEKGHAINI, M.J. TORKAMANY, and M. SHEIKHI, “INFLUENCE OF SHIELDING GAS COMPOSITION ON WELD PROFILE IN PULSED ND:YAG LASER WELDING OF LOW CARBON STEEL,” IRANIAN JOURNAL OF PHYSICS RESEARCH, vol. 14, no. 3, pp. 41–46, 2014, [Online]. Available: https://sid.ir/paper/1410/en

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