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.
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...
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...
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...
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.
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.
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?
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.
An overhead crane manufacturer solicits the Consumables crew for help choosing a flux/wire combination that closely matches A572.
January 30, 2017 | By Paul Cameron
Paul Cameron explains the important elements of developing a WPS or PQR for weld inspecting.
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.
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.
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.
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....
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 126.96.36.199 says: The ranges of specified outside diameters (ODs) and specified wall thicknesses over which the procedure is applicable shall be identified. Groupings are shown...
What is more important, price or classification? The Consumables Corner guys have the answer.