Arc Welding

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.

Filter Content

Lincoln Electric hosts Girl Scouts for STEM learning event

October 10, 2014

Cleveland-based Lincoln Electric teamed up with the Girl Scouts of Northeast Ohio for a STEM learning program on Oct. 4, designed to introduce many of the girls to the welding and manufacturing fields. Girl Scout Cadettes in grades 6, 7, and 8 met with some of the women who help run Lincoln...

Continue Reading

Humans and machines: The possibilities are endless

October 9, 2014

By:

The strength of human will and spirit joined with the power and permanence of machines could be a fascinating future.

Continue Reading

Arc Welding 101: Negatives to whipping and weaving

October 9, 2014

By:

Q: When using GMAW on carbon steel materials 1/8 inch thick or greater, we use a whipping technique that you have described as a bad work habit. What are the negative effects of whipping or weaving?John S. A: As with many welding techniques, there is a time and place for everything, even whipping...

Continue Reading

Live welding guidance system helps welders establish proper technique

October 8, 2014

Realityworks® Inc. has introduced the guideWELD™ LIVE welding guidance system to its line of Real Career® welding products. The system takes the step from simulation to real life, providing live welding guidance to help users establish proper position and technique while welding. The system...

Continue Reading

Arc Welding 101: Sorting out SAW

October 8, 2014

By:

Q: What is the procedure qualification test for manufacturing pipe using submerged arc welding?Sandesh P. A: Pipe is manufactured by one of these four methods: electric resistance welding (ERW)/high-frequency induction (HFI) welding, seamless (plug/mandrel mill and extrusion), spiral welding, and...

Continue Reading

Ready Welder secures GSA contract

October 7, 2014

Ready Welder Corp. has been awarded a GSA Schedule 51-V contract (GS-21F-129BA) and now is certified to supply its portable battery-powered GMAW machine and supplies to the federal government through its electronic ordering system, GSA Advantage!® "Securing this GSA Schedule expands our public...

Continue Reading

Arc Welding 101: Satisfying the weld inspector

October 7, 2014

By:

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...

Continue Reading

Arc Welding 101: What's up with a WPS?

October 6, 2014

By:

Q: Do I need a welding procedure specification (WPS) for my company when it is just me and all I do is on-site portable welding of a wide range of items?Steven B. A: Whether your company requires a WPS depends on the customers you serve. For example, if your company is hired to fabricate your...

Continue Reading

Arc Welding 101: Vertical-up or -down in robotic welding?

October 3, 2014

By:

Q: We have a weldment that incorporates 0.375-in.-diameter steel rods and a 0.060-in.-thick sheet metal stamping of 1018 CR material. Each weld is the same, 0.75 in. long with a 0.25-in. fillet, perhaps including weaving. The assembly is fixture and welded robotically using GMAW with CO2 gas and...

Continue Reading

Arc Welding 101: Clearing up ASME B31.3

October 2, 2014

By:

Q: I am unclear about a section relative to the ASME B31.3 code for chemical plant piping.The area of this code referring to the type of welding process that is acceptable—328.2.2—states welding procedures qualified by others may be used, provided that the following conditions are met: The...

Continue Reading

Arc Welding 101: Tackling trim in pulsed MIG welding

October 1, 2014

By:

Q: We use the pulsed-spray-transfer GMAW process in our shop. When setting weld voltage, we can adjust the trim between 0.5 and 1.5. What do those numbers mean, and how do they relate to weld voltage?Corey G. A: Pulsed-spray-transfer welding equipment has challenged the conventional wisdom we’ve...

Continue Reading

Arc Welding 101: Which welds need visual inspection?

September 30, 2014

By:

Q: We work on off-road and lifting equipment, and our welders are qualified per AWS D1.1. Which welds are required to be inspected visually and by whom?Ed Z. A: When you asked which welds are required to be inspected visually, I had to snicker. There was a time in my life when one side of my hard...

Continue Reading

Arc Welding 101: Addressing linear porosity

September 29, 2014

By:

Q: We are experiencing linear porosity at the furthest point of penetration when welding heavy plate. The porosity is 0.3 mm dia., but it occurs regularly in every weld we’ve sectioned so far.We are using a semiautomatic spray transfer process with a 0.045-in. ER70S-6 electrode, and a shielding...

Continue Reading

Arc Welding 101: Three keys to a successful CWI

September 26, 2014

By:

Q: I was recently interviewed by a writer who was researching how welders make the transition to certified welding inspectors (CWI). One of the questions he asked was, “What key skills make for the best certified welding inspector?” A: Communication—written, photographed, or verbal—is the...

Continue Reading

The art of welding versus welding art

September 25, 2014

By:

How do you make those sculptures? How can I make them? Not easy questions to answer, but not for the reasons you may think.

Continue Reading