February 27, 2003 | By Richard Grylis
At military installations across the country, repair personnel struggle to stretch the life spans of vital pieces of equipment. Sometimes welding can extend the life of damaged components in aircraft, tanks, and other military vehicles. But in some cases, high–temperature welding processes do more harm than good, warping and weakening delicate metal components. Previously such components would be classified as irreparable and replaced with pricey new parts.