Scholarlink

<p>Orbital pipe welding (OPW) is critical for SS316L piping systems, but achieving consistent quality is challenging due to gravity and parameter sensitivity. This study evaluates the influence of weaving speed and torch height on the mechanical properties and microstructure of SS316L OPW joints. Welding was performed using weaving speeds of 0.150, 0.155, and 0.161 mm/s with torch heights of 2 mm and 3 mm. Weld bead width, tensile strength, and microstructure were analyzed at four pipe positions (0°, 90°, 180°, 270°). A weaving speed of 0.155 mm/s produced the most uniform bead width. A speed of 0.161 mm/s at 0° yielded the ultimate tensile strength of 489.2 MPa (76.6% of base metal). The 90° position exhibited the most stable microstructure. Precise control of weaving speed and torch height is essential to optimize the structural integrity of orbital-welded joints.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Influence of Weaving Speed and Torch Height on the Mechanical Properties and Microstructure of Orbital Pipe Welded in 316L Stainless Steel Pipe

  • 期刊论文

  • 发表日期：

    2026年2月21日

查看全文
  • Eko Prasetyo,
  • Ario Sunar Baskoro,
  • Agus Widyianto,
  • Gandjar Kiswanto,
  • Muhammad Fikri,
  • Junaidi Syarif

摘要

Orbital pipe welding (OPW) is critical for SS316L piping systems, but achieving consistent quality is challenging due to gravity and parameter sensitivity. This study evaluates the influence of weaving speed and torch height on the mechanical properties and microstructure of SS316L OPW joints. Welding was performed using weaving speeds of 0.150, 0.155, and 0.161 mm/s with torch heights of 2 mm and 3 mm. Weld bead width, tensile strength, and microstructure were analyzed at four pipe positions (0°, 90°, 180°, 270°). A weaving speed of 0.155 mm/s produced the most uniform bead width. A speed of 0.161 mm/s at 0° yielded the ultimate tensile strength of 489.2 MPa (76.6% of base metal). The 90° position exhibited the most stable microstructure. Precise control of weaving speed and torch height is essential to optimize the structural integrity of orbital-welded joints.