Welding

Opportunities to Access the Benefits of High-Frequency Welded (HFW) Pipes for a Wider Scope of Oil and Gas Industry Applications

Opportunities to Access the Benefits of High-Frequency Welded (HFW) Pipes for a Wider Scope of Oil and Gas Industry Applications
Opportunities to Access the Benefits of High-Frequency Welded (HFW) Pipes for a Wider Scope of Oil and Gas Industry Applications
In recent years, many papers have been published describing the advantages and disadvantages of the high-frequency welded (HFW) and seamless (SMLS) carbon and low-alloy steel (LAS) pipe manufacturing processes for the oil and gas industry. However, there are few published papers that compare these different manufacturing processes in a way that...

Friction Stir Welding of Steel for Pipeline Fabrication

Friction Stir Welding of Steel for Pipeline Fabrication
Friction Stir Welding of Steel for Pipeline Fabrication
Friction stir welding procedure development was initiated on steel grades S460 G2+M and S690QL1 in plate wall thicknesses of 10 and 15mm. To tackle the challenges of the high mechanical loads on the tool as well as its premature wear, a combination of preheating and optimized weld backing set-up was implemented. The inductive preheating allowed a...