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Underwater aluminum GMAW -

Underwater aluminum GMAW

May 3, 2013

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.

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3 ways to boost submerged arc welding performance -

3 ways to boost submerged arc welding performance

April 19, 2013 | By Steve Massey

Submerged arc welding is known as a process that can result in high welding speeds and deposition rates. However, in today's manufacturing reality, engineers are always looking to boost productivity—even for already productive processes. Fortunately, companies have three common approaches to consider to increase the performance of their submerged arc welding systems.

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New guideline reduces manganese exposure limit dramatically -

New guideline reduces manganese exposure limit dramatically

April 19, 2013 | By Kimberly Gates, Scott Larson

Chronic exposure to manganese oxide fumes, which occur when manganese metal is heated and reacts with oxygen, can lead to damage to the central nervous system. Welders are especially susceptible to this disease, called maganism by the National Institutes of Health, because manganese is found in many welding rods and filler metals to promote hardness. The American Conference of Governmental Industrial Hygienists recently issued guidance that dramatically reduced suggested threshold limit values. Because many metal fabricators use this guidance to manage worker exposure, they now are having to rethink how they approach personal protective equipment.

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The broader implications of modular weld fixturing -

The broader implications of modular weld fixturing

April 17, 2013 | By Pam Farley

A shop is only as productive as its constraint process—that is, its bottleneck. All that adaptability in upstream processes may not make a part cost less if it takes days or weeks to build a new weld fixture. A modular approach to weld fixturing can help.

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Bottle tree boom -

Bottle tree boom

April 16, 2013 | By Amanda Carlson

Mississippi metal artist Stephanie Dwyer never knew she was an artist until she relocated from Washington and began building bottle trees. Today her bottle trees can be found all over the U.S., which has led to opportunities in custom metal art fabrication.

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Truck platforms for hauling

Welding for the natural gas boom

March 19, 2013 | By Professor R. Carlisle "Carl" Smith

The natural gas boom in parts of the U.S. is creating work for shops and many displaced workers in these areas. Do you know which codes and standards apply?

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Only the clean survive -

Only the clean survive

March 1, 2013 | By Mark Kadlec

Titanium is favored for its extreme strength and corrosion resistance, but improper weld preparation and the introduction of oxygen and other contaminants into the weld zone can render it useless.

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Bolt people: There’s an Appel for that -

Bolt people: There’s an Appel for that

February 15, 2013 | By Amanda Carlson

Steve Appel of Prescott, Ariz., has been making his bolt people full time for the last 23 years. The variety of requests and the kick he gets out of people’s reactions have turned this one-time hobby into an enjoyable career.

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Modern GTAW inverter-based power source

Invert the GTAW equation

February 5, 2013 | By Andrew Pfaller

Wondering if it’s time to transition from a transformer-style gas tungsten arc welding (GTAW) power source to an inverter-based machine? What are the differences between the two, and what can you expect if you switch?

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Sticking it to vertical-up, overhead SMAW -

Sticking it to vertical-up, overhead SMAW

January 14, 2013 | By Amanda Carlson

Three weld instructors from across the country share their classroom tips and tricks for helping welders tackle vertical-up and overhead SMAW.

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The real deal in stainless steel -

The real deal in stainless steel

January 7, 2013 | By Amanda Carlson

A careful examination of metal artist Dave Regier’s work reveals a seamless melding of abstract and realism.

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Tig welding

My last TIG article

November 14, 2012 | By Marty Rice

In this, his last TIG article, ever, welding instructor Marty Rice offers some advice for the home hobbyist about buying equipment and shielding gas.

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One man’s artisTIG endeavors -

One man’s artisTIG endeavors

November 5, 2012 | By Amanda Carlson

When he’s not TIG welding at his “normal” job, career welder and metal artist Roger King uses his skills with a TIG torch to create metal sculptures.

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The blends that bind -

The blends that bind

November 5, 2012 | By Randy Dull

Shielding gases do more than just protect the weld from atmospheric contamination. The gas and gas blends you use also influence the weld profile and the weld bead shape. Also, for an arc to occur in gas metal arc welding (GMAW), an ionized gas must be present to carry the charge.

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The Lombardi Trophy, with a “Girly” touch -

The Lombardi Trophy, with a “Girly” touch

November 2, 2012 | By Amanda Carlson

Super Bowl XLVI in Indianapolis earlier this year featured athletic prowess and classic gridiron toughness with a little speed and finesse. But also on display outside the stadium throughout the heart of downtown was a combination of strength and artistic flair that only a metal art sculpture can provide.

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