Butt Weldability for SS400 Using Laser-Arc Hybrid Welding

레이저-아크 하이브리드 용접을 이용한 SS400의 맞대기 용접 특성

  • Received : 2016.04.10
  • Accepted : 2016.05.30
  • Published : 2016.07.01


This study presents results of an experimental investigation of the laser-arc, hybrid, butt welding process of SS400 structural steel. Welding parameters including laser power, welding current and speed were varied in order to obtain one-pass, full-penetration welds without defects. The conditions that resulted in optimal beads were identified. After welding, hardness measurements and microstructure observations were carried out in order to study weld properties. The mechanical properties of both the base material and welded specimen were compared based on the results of tensile strength measurements. The yield and tensile strengths were found to be similar.


Butt Welding;Laser-arc Hybrid Welding;Welding Parameter;Weld Properties;Mechanical Properties


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