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Metal Inert Gas Welding (MIG) is an LSW welding method that uses CO2 as a protective gas. The MIG welding process is more widely applied to various welding positions and is more efficient and inexpensive. This welding process is suitable for construction. However, the MIG welding process requires a skilled welder because it requires continuous and stable control to prevent burn- back. The heat-affected zone (HAZ) is the area formed around the groove due to the heat input of the welding material. In the HAZ region, there is a change in the microstructure, which causes changes in material properties. The welding process was carried out at speeds of 2.75, 3.49, 2.67 and 3.41 mm/s with pressure variations of 10 and 15 bar. Changes in material properties occur due to welding speed which indicates the amount of Heat Input (HI) received. The higher welding speed causes a decrease in the HAZ area, which indicates a more ductile material

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The Analysis of CO2 Pressure and Welding Speed Effect on in AISI 1045 MIG Welding

  • 会议论文

  • 发表日期：

    2025年

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  • Suheni,
  • Ferry Assegaf,
  • Zain Lillahulhaq

摘要

Metal Inert Gas Welding (MIG) is an LSW welding method that uses CO2 as a protective gas. The MIG welding process is more widely applied to various welding positions and is more efficient and inexpensive. This welding process is suitable for construction. However, the MIG welding process requires a skilled welder because it requires continuous and stable control to prevent burn- back. The heat-affected zone (HAZ) is the area formed around the groove due to the heat input of the welding material. In the HAZ region, there is a change in the microstructure, which causes changes in material properties. The welding process was carried out at speeds of 2.75, 3.49, 2.67 and 3.41 mm/s with pressure variations of 10 and 15 bar. Changes in material properties occur due to welding speed which indicates the amount of Heat Input (HI) received. The higher welding speed causes a decrease in the HAZ area, which indicates a more ductile material