Practical Welding Today®

March/April 2003

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 March/April 2003 issue available online:

Riding on the cusp of something great

May 15, 2003

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Kevin Robb's sculptures seem to defy gravity, arrest time, encroach space. Each sculpture is a moment freeze-framed; each element seems to be impossibly suspended.

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Welding cold-rolled steel to cast iron

April 24, 2003

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Dear Elmer:Is there a way to weld 1018 cold-rolled steel to cast iron? If so, how?JamesOwings Mills, Md.Dear James:You can weld 1018 low-carbon steel to cast iron using shielded metal arc welding (SMAW) and a nickel-based ENiFe electrode.Clean the surfaces before you start. If the joint is highly...

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The structure of metal

April 24, 2003

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Let's start with the obvious: Molten metals have no particular structure. The atoms that make up that metal are just whipping around helter-skelter—at a high rate of speed—with no real orderly, defined pattern.

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Aluminum Workshop: How to recognize, minimize weld smut

April 10, 2003

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Q: When I weld any aluminum alloy, I see a covering, light gray to black in color, over the weld. I see it when I gas tungsten arc weld (GTAW), but it's worse when I gas metal arc weld (GMAW). What is it? Does it affect the mechanical properties of the weld? How do I get rid of it?A: A common...

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Using narrow-gap GTAW for power-generation equipment

April 10, 2003

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Narrow-gap gas tungsten arc welding (GTAW) frequently is used to weld regular and multilayer high-chromium steel for power generation boilers, stainless steel for nuclear power generation equipment, INCONEL® alloy and other high-alloy steels, and thick-wall stationary pipes.

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Escape the 'Silent Killer'

March 27, 2003

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It was just a 20-minute welding job in a basement boiler-room, but it left the plumber feeling lightheaded and nauseated and gave him a headache that lasted until the next morning.

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Will a robotic laser system cut it?

March 27, 2003

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Although robotic laser cutting systems have advanced over the years, you should know exactly what one can do before you decide if it's right for you. To find out whether you should choose robotics to laser-cut your parts, you first must consider several factors, starting with what is in a system.

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An Introduction to metal-cored wire

March 27, 2003

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Metal-cored wire is a tubular electrode that consists of a metal sheath and a core of various powdered materials, primarily iron. The core of metal-cored wire contributes almost entirely to the deposited weld metal.

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