<p>Magnesium alloys have major significant interest over the last decade due to their superior qualities, making them desirable for various industrial applications, including railways, construction, energy, electronics, automotive, and aerospace. Laser welding of magnesium alloys are frequently used in various sectors such as in aerospace, aircraft, automotive, electronics, and other industries. The use of laser welding for magnesium alloys, with an emphasis on mechanical characteristics, microstructural advancements, and difficulties encountered in various welding procedures, including CO<sub>2</sub> and Nd YAG lasers. According to investigations, CO<sub>2</sub> lasers offer better control over heat input, whereas Nd YAG lasers offer higher welding penetration. The impact of shielding gas, welding speed, and laser power on the quality of the welded joints is examined, as well as the function of surface preparation in energy absorption. The actual scope of present research is a brief short review on laser welding of different grades of magnesium alloys (such as Alloys AZ61, AZ31, AZ91, and AZ80) were explored for their mechanical properties by using different welding parameters. The use of laser welding for magnesium alloys, with an emphasis on mechanical characteristics, microstructural advancements, and various difficulties encountered in welding of these materials with the use of different lasers such as CO<sub>2</sub> and Nd YAG lasers have been explored. The mechanical properties of AZ91 magnesium alloy such as yield strength (123 Mpa) and tensile strength (178 Mpa) with elongation (18%). AZ31 magnesium alloy has yield strength of 127 Mpa and tensile strength of 195 Mpa with elongation upto 19%. Hardness value of AZ31 magnesium alloy is 65 Hv while AZ91 magnesium alloy of 54 Hv.</p>

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Laser Welding Techniques of Magnesium Alloys- “A Brief Review”

  • Abhishek Kumar,
  • Lochan Sharma,
  • Kanika Sharma,
  • Narinder Singh

摘要

Magnesium alloys have major significant interest over the last decade due to their superior qualities, making them desirable for various industrial applications, including railways, construction, energy, electronics, automotive, and aerospace. Laser welding of magnesium alloys are frequently used in various sectors such as in aerospace, aircraft, automotive, electronics, and other industries. The use of laser welding for magnesium alloys, with an emphasis on mechanical characteristics, microstructural advancements, and difficulties encountered in various welding procedures, including CO2 and Nd YAG lasers. According to investigations, CO2 lasers offer better control over heat input, whereas Nd YAG lasers offer higher welding penetration. The impact of shielding gas, welding speed, and laser power on the quality of the welded joints is examined, as well as the function of surface preparation in energy absorption. The actual scope of present research is a brief short review on laser welding of different grades of magnesium alloys (such as Alloys AZ61, AZ31, AZ91, and AZ80) were explored for their mechanical properties by using different welding parameters. The use of laser welding for magnesium alloys, with an emphasis on mechanical characteristics, microstructural advancements, and various difficulties encountered in welding of these materials with the use of different lasers such as CO2 and Nd YAG lasers have been explored. The mechanical properties of AZ91 magnesium alloy such as yield strength (123 Mpa) and tensile strength (178 Mpa) with elongation (18%). AZ31 magnesium alloy has yield strength of 127 Mpa and tensile strength of 195 Mpa with elongation upto 19%. Hardness value of AZ31 magnesium alloy is 65 Hv while AZ91 magnesium alloy of 54 Hv.