The arc welding technology area focuses on the most commonly used arc welding processes, mainly GMAW/MIG, GTAW/TIG, SMAW/stick, and plasma. The articles and press releases cover processes and power sources, plus all of the related items—electrodes and wire, wire feeders, fixtures, manipulators, positioners, and power sources. If you need information on personal protective gear, ventilation systems, and safety practices for welders, see our Safety coverage area.
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 8, 2017 | By Professor R. Carlisle "Carl" Smith
To pass the certified welding inspector exam, you must have a good understanding of codes and standards. These exist in several iterations, all of which have some similarities. This article discusses the elements of each and offers insight into how to prepare for the exam.
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.
March 6, 2017
In its efforts to train welders consistently and deliver products on time, Team Industries Inc. looked for welding equipment that would minimize training time and maximize consistency. It discovered three Miller products that helps it achieve these goals.
March 3, 2017 | By Eric Lundin
Having grown up on a farm, John Eckbold learned a lot about fixing machinery and raising animals. Both have a place in his venture, Flying J Metal Arts & Fabrication, Egg Harbor Township, N.J.
A new gas tungsten arc welding variant uses two gas streams, an outer shielding gas and an inner focusing gas, to constrict and stabilize the arc. It is designed to increase throughput and quality and reduce heat input.
January 30, 2017 | By Paul Cameron
Paul Cameron explains the important elements of developing a WPS or PQR for weld inspecting.
January 27, 2017 | By Amanda Carlson
A Wisconsin metal fabricator created a 10-ft. replica of the Lombardi Trophy and mounted it in the yard outside of its Green Bay-based tailgate house. Why? Because Packer freedom is a way of life.
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.
January 11, 2017 | By Tom Danowski
Many skilled-labor jobs continue to go unfilled. To help alleviate the shortage, more programs are being designed to attract women to the trades. Cultivating a safe manufacturing environment that offers fair, equal wages also can help.
January 9, 2017 | By Amanda Carlson
A Missouri man’s fairly recent immersion in metal sculpture has yielded confidence and surprising results, at least to him.
December 13, 2016 | By Professor R. Carlisle "Carl" Smith
Joints and symbols are an important part of the test to become a certified welding inspector. This article covers the components of a symbol and discusses different joint types.
December 7, 2016 | By Caleb Haven
When do you need to preheat before welding? Which preheating method is correct for your application? What do you need to consider to make the right choice? Read on.
December 7, 2016
Balfour Brickner Early Childhood Center at Stephen Wise Free Synagogue in Manhattan wanted a playground system suitable for the rooftop of the building that houses the center. The end result has the right look, plus durability and strength.
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 220.127.116.11 says: The ranges of specified outside diameters (ODs) and specified wall thicknesses over which the procedure is applicable shall be identified. Groupings are shown...