A construction worker was killed Wednesday when a welding torch apparently ignited his clothes while he was working inside a steel drainage pipe at a construction site at Highway 29 in Napa. The man, ...

Proper training and certification for High Density Polyethylene (HDPE) pipe welding can be the stepping stone to a more sustainable and better quality pipeline networks "Just as you would not let ...

Engineers at OC Robotics and TWI built a snakebot capable of welding damaged or deteriorated pipes from the inside. Plenty of snake-inspired bots already exist—surgical bots are a good example—but ...

Aerial picture of the site of the Yellowstone oil pipeline spill. On Jan. 17, Bridger Pipeline LLC's Poplar Pipeline cracked under the riverbed and leaked up to 50,000 gallons into the water. Credit: ...

When welding large pieces of reactive metal, trailing shields keep the heat-affected zone under an argon shield. Welding titanium, stainless steel, and other reactive metals releases gases that cause ...

An inferior weld on the seam of the San Bruno gas pipeline was overstressed to the breaking point at the time of the line's deadly explosion, according to a detailed scientific analysis released ...