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High-frequency electric resistance welding: An overview - TheFabricator

High-frequency electric resistance welding: An overview

June 1, 2010 | By Jeff Pierson, Mike DiDonato

Architects and engineers are designing structures with new and innovative shapes. To meet these ever-changing requirements, manufacturers may turn to solid-state, high-frequency electric resistance welding (HF ERW) to produce engineered structural sections at high speeds with unlimited beam profiles, better structural performance, and with lighter weights.

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Wire welding in the structural steel world - TheFabricator

Wire welding in the structural steel world

June 1, 2010 | By Amanda Carlson

Many structural steel fabricators are loyal to shielded metal arc welding (SMAW). But technology advancements in the wire feed process known as flux-cored arc welding (FCAW), paired with an increasingly competitive market, have changed the landscape of structural steel environments, and by extension the opinions of the most loyal SMAW users.

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Welder 'Bob' dedicated as Hobart Institute celebrates 80 years - TheFabricator

Welder 'Bob' dedicated as Hobart Institute celebrates 80 years

June 1, 2010

Hobart Institute of Welding Technology in Troy, Ohio, has unveiled "Bob," a bronze sculpture that stands at the entrance to the school, as part of the activities celebrating the institute's 80th anniversary. Sculpted by Gregory Johnson of Cumming, Ga., and cast by Eagle Bronze Foundry of Lander,...

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single arc saw - twin wire

Improving productivity with submerged arc welding

May 25, 2010

Submerged arc welding (SAW) can be performed in various ways, from the simplest process using a single wire and DC power to more advanced twin-wire and tandem operations. Choosing the right SAW process for your operation can help you increase deposition rates and productivity.

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Liquid propane gas welding machine allows users to switch seamlessly between multiple processes

May 17, 2010

Designed for maintenance, repair, and construction, Lincoln’s Ranger® 305 LPG is an engine-driven welding machine that allows users to switch seamlessly between multiple processes. While liquid propane gas (LPG) is less common, it is required when operating in areas where gasoline and diesel...

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orbital welding electronics

We've come a long way, baby

May 5, 2010 | By Bill Bonow

The orbital welding process has seen significant advancements in electronic control technology that have helped open the door to a wider array of applications while making it more cost effective to use.

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ultra international

Teaming up to clean up

May 4, 2010 | By Amanda Carlson

Like many companies, Ultra Machine and Fabrication Inc., Shelby, N.C., a fabricator of armored military vehicles, believed the welders should clean up their own weldments for spatter, slag, and other discontinuities. But when welders were spending less and less time under the hood, Ultra re-evaluated this philosophy and, as a result, implemented a separate postweld cleaning team.

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AWS issues call for entries in 8th Annual Image of Welding Awards

May 3, 2010

The American Welding Society (AWS), Miami, has issued a call for entries in the 8th Annual Image of Welding Awards program. This competition salutes the year's most outstanding public initiatives and programs that promote the image of welding. The entry deadline is July 12, 2010. The competition...

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Gauge detects welding wire level in drums, boxes

May 3, 2010

The Wire Wizard® wire level gauge from ELCo Enterprises Inc. detects the amount of wire left in weld wire drums or boxes. The gauge, which attaches to the cover of the drum or box, features magnetic wire detection that slides down the drum or box as wire is depleted. The level of wire...

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right filler metal

Welding metals of dissimilar strengths

April 30, 2010 | By Dean C. Phillips

Welding metals of dissimilar strengths requires that a welder consider some specific factors, to ensure a solid joint.

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butt joint geometry joining

Welding thin with GMAW

April 1, 2010 | By Wesley Doneth

A unique method of metal transfer allows gas metal arc welding to tackle thin-gauge and cosmetically sensitive workpieces.

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welding minimal distortion

Pulsed GTAW for stainless steel

April 1, 2010 | By Kirk Webb, Mark Kadlec, Brad Hemmert

Some welders swear that stainless steel warps if you just look at it wrong. This is an exaggeration, but it does reflect the metal's low rate of thermal conductivity, which causes the input heat to remain localized; localized heating and cooling promotes distortion. Adding more heat doesn't...

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Retaining heads upgraded

March 30, 2010

Tregaskiss has upgraded the design of its TOUGH LOCK Retaining Heads. At no additional cost to its customers, the TOUGH LOCK Retaining Heads now feature the company's dual taper technology—a second rear taper between the gooseneck and the contact tip. This design further improves electrical...

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GMAW guns enhanced with new look, more flexibility

March 30, 2010

Tregaskiss has brought a new look and more flexibility to its line of TGX™ Semi-Automatic GMAW Guns—at no additional charge. Designed for light- to medium-duty welding applications, the following TGX guns are available: XL 400 amp, XL300 amp, XS 300 amp, XS 260 amp, and XS 180 amp....

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Flex-neck torches offer improved joint access

March 30, 2010

To help provide better joint access, Weldcraft offers several GTAW torches with flex-neck designs. The company's WP-9, WP-17 and WP-26 Series of air-cooled torches all feature an optional 'F' or flex-neck model (e.g. WP-17F) for welding applications with limited joint access and/or difficult joint...

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