Practical Welding Today®

May/June 2009

Practical Welding Today® was created to fill a void in the industry for hands-on information, real-world applications, and down-to-earth advice for welders. No other welding magazine fills the need for this kind of practical information. Subscriptions are free to qualified welding professionals in North America.


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Selected articles from the May/June 2009 issue available online:

Aluminum Workshop: Using 4043, 4643 when welding 6061-T6

December 4, 2014

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Q: Most 6061-T6 is welded using 4043 filler wire. If you heat-treat the weld, will the 4043 get stronger? What happens if I use 4643 filler instead of 4043? A: Is the weld heat-treatable? Well, yes and no. Remember, the first step to producing T6 temper is heat treating at around 1,050 degrees F...

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Arc Welding 101: Satisfying the weld inspector

October 7, 2014

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Q: We have a stiffener bar (continuity connection) in a column that calls for AWS D1.1 BTC-P4 for the flanges and fillet welds on both sides in the web. The stiffeners were field-welded. After assembling 35 connections, we discovered no fillet weld on the bottom side in the web. We can’t weld the...

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Consumables Corner: Changing over to metal-cored wire in SAW

August 27, 2014

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Q: One of my vendors recently approached me about replacing the solid wire in my submerged arc welding (SAW) application with a metal-cored wire. Should I consider making the change? A: Depending on your application, you should certainly consider making the change. Metal-cored wires can provide...

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Welding Update for Infrastructure: Selecting filler metals for seismic requirements

May 18, 2009

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FEMA, AWS, and AISC have all released documentation andspecification guidance for structural steel construction projects.Determining which to follow, however, can be a source of confusionfor architects, contract engineers, welding engineers, and weldingmanufacturers.

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nondestructive testing infrastructure

Welding Update for Infrastructure: No nonsense with NDT

May 18, 2009

Infrastructure is defined as the basic physical systems that serve a community's population, such as roads, bridges, utilities, water, and sewage. These systems are essential for enabling productivity in the economy, so it is crucial to ensure they are fit for use. Nondestructive testing (NDT)...

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alloy content crack sensitivity

Finding an ally alloy

May 15, 2009

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Choosing the best filler metal for aluminum welding involves takinginto account the operating conditions of the finished weldedcomponent as well as six important variables that can affect theoperating condition.

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economic stimulus

Welding Update for Infrastruture:Heating up takes time

May 15, 2009

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The good news about a worldwide ­recession is that steel prices are back down from their record highs of 2008. The Producer Price Index for hot-rolled bars, plates, and structural shapes, which includes a lot of bridge steel, dropped 7.5 percent from February 2008 to February 2009."The extreme...

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bridge fabricator

Welding Update for Infrastruture:Building the bridge to anywhere

May 15, 2009

Stinger Welding Inc. has only been around for 12 years but quickly has established itself as a premier fabricator of bridges and bridge components in the southwestern U.S. Two years ago a projectinvolving an Oakland, Calif., bridge sent the company into thespotlight for its efforts in fabricating 12 girders in just eight days.

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weld fixturing machine

Weld fixturing from virtual to reality

May 11, 2009

A Florida job shop saved on material costs by integrating modular fixturing set up in SolidWorks. The CAD-friendly system allowed the company to define the fixture and the completed weldment before it hit the shot floor.

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bridge building

Building the bridge to anywhere

April 1, 2009

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Stinger Welding Inc. has only been around for 12 years but quickly has established itself as a premier fabricator of bridges and bridge components in the southwestern U.S. Two years ago a project involving an Oakland, Calif., bridge sent the company into the spotlight for its efforts in fabricating 12 girders in just eight days.

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nereus hybrid remote vehicle

The pressure's on!

April 1, 2009

Massachusetts-based Woods Hole Oceanographic Institution (WHOI) is dedicated to researching the impact that oceans have on the Earth as a whole, and sometimes that means diving to treacherous depths to gather pertinent information. For an excursion at Challenger Deep, a portion of the South Pacific Ocean off the coast of the Marianas Islands, WHOI fabricated a hybrid remotely operated vehicle able to withstand the 15,751 PSI of pressure, allowing scientists to gather valuable data from more than 35,000 feet below sea level.

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