Repair and Field Welding Tech Cell

Underwater aluminum GMAW

The U.S. Navy has been searching for new weld-repair methods on its aluminum-hulled ships beyond dry docking, which is impractical and costly. Phoenix Intl., an underwater services company that has held the Navy’s Diving Services contract for the past 15 years, may have found one: underwater aluminum GMAW in a hyperbaric chamber.

Field welding repair

Welding to repair damaged components in broken equipment involves three stages, each of which must be performed meticulously to ensure that the machinery runs properly and the repair lasts a reasonable length of time. What are these stages, and what equipment do you need to complete them?

Brazing copper and copper alloys

It is important to be able to identify when brazing is suitable for joining copper or copper alloys, how it is applied, and which filler metals to use.

Weld repair—Analyze the failure before attempting the repair

When something breaks, you acknowledge the shock, scratch your head, take stock of the situation, and look for the fastest way to repair the item and put it back into operation. The pressure to repair quickly is understandable, but common sense suggests stopping for a moment and trying to understand what caused the break before attempting the repair.

Delta repair welders aim high

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Mobile GMAW systems suitable for medium-sized construction, various repair work

Kjellberg Finsterwalde offers the KJELLmig 180, 230, and K350 mobile GMAW units. They are designed for medium-sized steel construction companies and for use in vehicle repair work, agriculture, industry, and craft. Using argon or mixed gases, the units can weld unalloyed, low-alloyed,...

Mobile GMAW systems suitable for medium-sized construction, various repair work

Kjellberg Finsterwalde offers the KJELLmig 180, 230, and K350 mobile GMAW units. They are designed for medium-sized steel construction companies and for use in vehicle repair work, agriculture, industry, and craft. Using argon or mixed gases, the units can weld unalloyed, low-alloyed,...

Welding machines/generators feature increased output

Miller Electric Mfg. Co. has increased the output of its Bobcat 250 and Trailblazer 302, Kohler gas-powered and Kubota diesel-powered welding machines/generators, to an Accu-rated 11,000 W of usable peak power. The machines can sustain the peak power for a minimum of 30 seconds at 104 degrees F,...

Flux-cored wires suitable for high-pressure steam, gas piping

Hobart Brothers Co. offers low-alloy, gas-shielded, flux-cored wires suitable for high-pressure steam and gas piping, boiler manufacturing, and certain casting applications. Designed for steels containing 1.25 percent chrome and 0.5 percent molybdenum, the TM-81B2 and TM-811B2 wires can be...

Protective welding sleeve introduced

Torch Wear® has introduced its X-Treme welding sleeve, featuring a three-layer design to provide protection. Applications for the sleeve include carbon-arc, sub-arc, spray-arc, and heavy-arc welding, as well as pipe and heavy GTAW and standard GMAW. The sleeve exceeds Hazard Risk Category 4...

Covered electrode welds nickel-chromium-molybdenum alloys

Arcos Industries LLC offers Arcos 1N12, a high-nickel covered electrode used to weld nickel-chromium-molybdenum alloys to themselves and to steel. It is also suitable for welding 5 and 9 percent nickel steels for low-temperature service to themselves, to low alloys, and to stainless steel. The...