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

Consumables Corner: Identifying pockmarking causes in structural SAW

June 16, 2014

By:

Q: Our company manufactures various structural components, typically made from A36 or A572 steel grades in plate, I-beam, or channel. Based on the application we’ll use GMAW, FCAW, or SAW. On random occasions we experience pockmarking on the surface of the SAW joints. While the timing is usually...

Continue Reading

No secret code for successful code welding

June 16, 2014

By:

Being a code welding shop with an ever-expanding customer base continuously challenges Andy J. Eagan Co. Inc., Grand Rapids, Mich. New customer projects and keeping on top of certification demands require a talented and dedicated workforce. As a result, that’s where the company puts a lot of its focus.

Continue Reading

Consumables Corner: The thought process behind changing a weld process

June 13, 2014

By:

Q: Our company is using 0.045-in.-dia. mild steel solid wire for GMAW with 90 percent argon/10 percent CO2 shielding gas. A majority of our base metal is ¼ to 1 in. thick welded out of position about 30 percent of the time. We are considering a change in our welding process to reduce lead-times....

Continue Reading

Old-school welding techniques with new-school machines

June 12, 2014

By:

TIG welding thin material presents some challenges that can be addressed by tried-and-true techniques and newer welding technology.

Continue Reading

Consumables Corner: Tackling root penetration problems

June 12, 2014

By:

Q: We are experiencing weld root penetration issues in our single- and multipass welds. Our base metal is A36, and we oxyfuel-cut it in thicknesses from ½ to 3 in. Most of the weld joints are standard T-joints with a few groove joints. We are using a 0.045-in.- dia. E71T-1C/M flux-cored wire with...

Continue Reading

Consumables Corner: Examining the root cause of distortion

June 11, 2014

By: , ,

Q: We manufacture hydraulic cylinders. Ever since we changed our shielding gas blend, we’ve noticed a higher level of distortion. Before the change we used a 95/5 blend, but now we use 92/8, which we have documented using a 0.045-in.-dia. filler metal. Would the 92/8 blend run hotter and cause...

Continue Reading

GMAW guns are custom-built by users

June 9, 2014

Bernard has announced the availability of Best of the Best (BTB) Platform GMAW guns. Users build the semiautomatic, air-cooled GMAW guns by choosing from an expanded list of features from the legacy Bernard Q-Gun™, S-Gun™, and T-Gun™ GMAW gun lines. The company has consolidated the top...

Continue Reading

GTAW outfit comes with hundreds of options

June 4, 2014

CK Worldwide Inc. offers the Professional TIG Outfit (PTO). According to the company, the outfit includes in one box everything users need to begin their welding process. Hundreds of options are available, giving users the GTAW torch of their choice, with power cables, DINSE connector, argon...

Continue Reading

Fronius USA, voestalpine Böhler Welding to host open house June 24

June 2, 2014

Fronius USA and voestalpine Böhler Welding will host an open house June 24 in Sparks, Nev. The company will offer live welding demonstrations and a product showcase highlighting its consumables and welding equipment. The event is free and space is limited. Two sessions are available. For...

Continue Reading

Arc Welding 101: When to use updated AWS D1.1

June 2, 2014

By:

Q: I currently use the AWS D1.1-2006 edition and was wondering if I should get the 2010 edition. Dan C. A: Take a look at Section 4.2.1 of your D1.1-06 edition, referred to as “Clause” in later editions. It states, “The use of earlier editions shall be prohibited for new...

Continue Reading

Inverter helps manufacturer achieve improved arc starts, arc control

June 2, 2014

By:

The welders at JATCO Environmental Inc., a manufacturer of steam-to-liquids condensers for natural gas extraction, had a problem with striking and maintaining a good arc. When the company switched from a rectifier-based unit to an inverter-based unit, the welders found that the arc starts and weld characteristics were greatly improved.

Continue Reading

Arc Welding 101: Oscillation during welding - Why?

May 30, 2014

By:

Q: What are the reasons to oscillate a weld process? Vince H. A: Oscillation helps a steelworker using electroslag to fabricate components for San Francisco’s Bank of America building; it helped to minimize the arm fatigue of a pipefitter as he built Louisiana’s River Bend nuclear power...

Continue Reading

Clamp-on weld heads expand orbital system for welding small-diameter pipe, tube

May 29, 2014

The Lincoln Electric Co. offers HELIX® C450 and C663 weld heads for welding various pipe and tube sizes. With these orbital GTAW clamp-on weld heads, operators not only can weld large diameters with no upper limit, they also can weld smaller tubes and pipes with ODs from 1.315 to 6.63 in. The weld...

Continue Reading

Tube cutting machine recycles heavy-wall weld coupons

May 27, 2014

The new CouponMASTER™ weld coupon machine from Tri Tool is suitable for use in union halls, colleges, and trade schools where high numbers of weld coupons are used in training and certification programs for welders qualifying with heavy-wall pipe. The unit reuses and recycles postwelded training...

Continue Reading

Courage over fear

May 26, 2014

By:

After trying her hand at various traditionally female-oriented careers, an Alabama woman, on a mission to provide the best life for herself and her newborn son, found courage to ask a shipyard for a job. That courage ultimately sparked a chain of events that led her to a fulfilling career.

Continue Reading