Practical Welding Today

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.

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Consumables Corner: Choosing the right filler metal for A513 HSLA 70 steel

March 27, 2017 | By Nino Mascalco, Rob Koltz, Steve Sigler

Q: We have a job coming up involving hand rails, stairs, and tables for outdoor use. The engineers chose A513 HSLA 70 steel because it is thin and saves on weight. In the past we used A500 and welded it with an E70 filler metal. Because we are now using a material that is thinner and higher in...

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Arc Welding 101: Measuring preheat and interpass temperatures

March 24, 2017 | By Paul Cameron

Q: What is your preference when it comes to measuring weld preheat and interpass temperatures? Right now I am using seven different temperature-indicating crayons with various ratings. Is that enough to get the job done?The infrared pyrometer that I have is unreliable at best. If anything, I'm...

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Aluminum Workshop: The truth about welding aluminum castings

March 23, 2017 | By Frank Armao

Q: A group of friends and I were talking the other day. Some people said that all aluminum castings are weldable. Others took the extreme opposite position and said that aluminum castings usually aren’t weldable. What’s the truth?A: The short answer is that, yes, most aluminum castings are...

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How to plan a weldment

March 8, 2017 | By Samantha Noland

More than 80 percent of the cost for a manual weld lies in the labor required to perform it. By choosing the right welding transfer mode and wire for gas metal arc welding (GMAW), you can reduce your overall cost and improve productivity and efficiency.

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Which filler metal should you choose?

March 8, 2017

6XXX series is a common base material used in aluminum applications and, generally speaking, its best filler metal match is either the 4XXX or 5XXX series. The filler metal you choose depends on how the finished weld will be used. Will it be exposed to sustained elevated temperatures? Are strength, ductility, and toughness key requirements? Determine which properties are most important for the completed weld and select the filler metal according to those priorities.

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Understanding plasma cutting duty cycle

March 8, 2017 | By Jim Colt

Determining duty cycle is tricky because there is no agreed-upon standard among manufacturers. How do you determine a system’s duty cycle, and how do you know if a particular system will meet your needs?

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Aluminum GMAW: Winning the battle with wire feed

March 8, 2017 | By Rob Krause

Getting to the root cause of wire feeding problems in aluminum GMAW can be a head-scratcher, particularly if you are more familiar with welding steel. When feeding problems crop up, the solution can be as simple as understanding five key components. Familiarizing yourself with these components and knowing how to adjust them for aluminum welding can help the process run smoothly.

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Consumables Corner: Finding a flux/wire combination to match A572, weld through rust

January 30, 2017 | By Nino Mascalco, Rob Koltz, Steve Sigler

An overhead crane manufacturer solicits the Consumables crew for help choosing a flux/wire combination that closely matches A572.

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Arc Welding 101: WPS & PQR for dummies

January 30, 2017 | By Paul Cameron

Paul Cameron explains the important elements of developing a WPS or PQR for weld inspecting.

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Aluminum Workshop: Choosing a filler to repair 356.0-T6 casting

January 30, 2017 | By Frank Armao

A reader wanting to make a repair to a 356.0-T6 aluminum cylinder gets Frank's advice on what filler metal to use.

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Are you lax on your PPE? It could cost you

January 23, 2017 | By Shannon DeCamp

OSHA handed out $11 million in fines to metal fabricators in 2015, and PPE citations comprised 10 percent of that. This number does not include medical cost, increased workers' compensation, property damage, and replacement personnel costs. Are you prepared for an OSHA inspection? If not, here's what you can expect should the agency come calling.

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GMAW for beginners

January 20, 2017 | By Adam Urbano, Rhonda Zatezalo

Even though GMAW is relatively simple process to execute in comparison to other welding processes, there are a lot of moving parts that will either make or break your weld. New welders have a lot to consider, including understanding the base metal, the type of weld necessary, how to set up the machine, and how the best to lay the bead. Knowing which is best for the application is often part of the challenge.

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Aluminum Workshop: 6061-T6 cracking

November 30, 2016 | By Frank Armao

Q: My company recently purchased a piece of equipment fabricated from 6061-T6 structural shapes. The welds do not seem to be very good and we have found several cracked welds. However, it is the weld shown in the photo that is puzzling. This weld shows a crack in the 6061 base metal about 2 in....

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Arc Welding 101: Explaining essential and nonessential variables for a WPS

November 30, 2016 | By Paul Cameron

Q: I am unclear on the American Petroleum Institute’s Standard 1104 regarding a weld procedure specification (WPS). Section 5.3.2.3 says: The ranges of specified outside diameters (ODs) and specified wall thicknesses over which the procedure is applicable shall be identified. Groupings are shown...

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Consumables Corner: Cost or classification

November 30, 2016 | By Nino Mascalco, Rob Koltz, Steve Sigler

What is more important, price or classification? The Consumables Corner guys have the answer.

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