This is a close-up view of porosity in a TIG weld. We will examine some of the causes for weld porosity and ways to prevent it. Q.When I TIG-weld a patch panel into an old car and then grind the weld ...

What am I doing wrong? I cleaned the metal very well before welding, and tried different argon settings. I'm puzzled about what goes on after the bead is laid down that can create pinholes that often ...

In the manufacture of heat exchanger components for aircraft, it was found that using the pulsed TIG method to weld the inlet and return manifolds was giving excessive porosity. Consequently an ...

Experienced welders know that without the right information, it's easy to sacrifice quality, lose time, and become frustrated with gas-tungsten-arc welding (GTAW), also known as tungsten-inert-gas ...

Welding. There’s something almost supernatural about being able to melt metal and use it to glue other pieces of metal together. It’s an experience you must have if you’ve never done it before.

Welding is serious business, but it can often get romanticized. In truth, welding is part science and part craftsmanship, and mastering it takes more than a macho posture and a gas mask. Each welding ...