Welding dissimilar metals poses unique metallurgical challenges arising from divergent physical, chemical and crystalline characteristics. The joint region encompasses a fully melted weld zone, a heat ...

Many countries have accelerated the construction of advanced ultra-supercritical (AUSC) thermal power units with high steam temperatures and pressure in order to achieve high energy efficiency with ...

Plenty of welders are aware of AWS D1.1, Structural Welding Code—Steel, but they might not know that changes are made to the ...

Welding creates problems for fleet managers because construction equipment does not fall into a neat category. A welder cannot qualify a hard-facing procedure to a structural steel welding code, for ...

Pinholes are an all-too-common problem with welds. This column details some of the factors that cause these defects. Note to readers:My column for the January issue (which dealt with porosity in welds ...

This pole suffered a failure in the welded seam at an overlapping slip splice. A tubular steel transmission pole generally consists of a series of welded assemblies. The pole shafts and arms are ...

To grind or not to grind? What a question! It all depends on what you’re really trying to show, and in the case of welded joints, I often want to prove the integrity of the weld. My ground-back piece ...

A senior-level rundown of how onshore/offshore line pipe joints are welded into a continuous, code-compliant pipeline—what it is, how it’s executed on the right-of-way or lay vessel, and how to ...

Thermoplastic composite (TPC) welding has been a key topic for CW since the March 2006 feature, “Thermoplastic composites gain leading edge on the A380”. That article described GKN Fokker’s (Hoogeveen ...

A thing of beauty is a joy forever, and beauty often takes the form of a perfectly laid welding bead—one that looks like a tall stack of dimes laid on its side. Okay, welding has some practical ...