Content tagged with "electrodes"
Results: 17
Article
March 1, 2010
Consuming plasma consumables too quickly?
All plasma systems—whether it's a portable, 30-amp unit or a high-precision, automated system that can cut material up to 6 inches thick at 100 percent duty cycle—use consumables that have an expected life. In high-use environments, the cost of consumables can become considerable... Read more...
Article
August 1, 2009
Stick welding: Tips for top performance
For those who are new to it or perhaps who don't weld every day, stick welding—also known as shielded metal arc welding (SMAW)—is one of the more difficult processes to learn. Experienced welders who can pick up a stinger, pop an electrode in, and lay down great welds time after... Read more...
Article
February 24, 2009
Welding fasteners: Spot or projection?
Both spot and projection weld fasteners have their place. Spot welding fasteners resistance-weld directly to a sheet with either a rocker-arm or a press-type resistance welding system (see Press-type resistance welding machines can perform both spot and projection welding.">Figure 1 and... Read more...
Article
July 15, 2008
Preventing torch fires in welding and cutting operations
Sparks from welding and cutting torches can easily ignite structural members and insulation, as well as combustible gases and liquids. Photo courtesy of NFPA.
In March fire destroyed the 150,000-square-foot Cargill Meat Solutions plant in Booneville, Ark., and forced residents in the... Read more...
Article
June 17, 2008
The lowdown on low-alloy filler metals
Chrome-moly pipe has become a standard in industries such as power generation, chemical processing, and petroleum refinement, not only for its corrosion resistance and high-temperature strength, but also for its cost-effectiveness. In many applications, it is a viable alternative to a more... Read more...
Article
May 13, 2008
Resistance-weld more for less
This multigun resistance welding system is designed for automotive exhaust systems. Resistance welding often is viewed as a process shrouded in mystery, and one of its most misunderstood components is the welding electrode. Electrodes have a profound effect on weld integrity and, ultimately,... Read more...
Article
January 15, 2008
Vertical SMAW: It's a stick up
Figure 1 SMAW, or stick welding, requires a certain mastery of skills, and vertical and overhead stick welding is that much more difficult-one of the reasons the specialty is in such great demand. Vertical and overhead stick welding have never been in such high demand. Heavy construction... Read more...
Spanish
July 10, 2007
No hay nada más sano que una bocanada de aire fresco
La mayoría de los soldadores que usan poderosas herramientas y equipo comprenden los riesgos de seguridad asociados con éstos.
Algunos riesgos para la salud relacionados con soldar, especialmente con soldadura por arco, son obvios. Por ejemplo, usted sabe que no debe ver el arco, pero puede... Read more...
Article
July 10, 2007
Stuck on SMAW?
Whether you're a do-it-yourself welder who uses shielded metal arc welding (SMAW) only a few times a year or a professional welder who welds every day, one thing is certain: SMAW requires a lot of skill and electrode knowledge. Because variables such as storage techniques, electrode diameter,... Read more...
Article
April 10, 2007
Welding austenitic stainless steel
Because of its inherent corrosion resistance, austenitic stainless steel has become a cost-effective, staple material for long-term applications in many industries, such as petrochemical, food processing, and transportation. Also known as 300 series, austenitic stainless steel poses distinct... Read more...
Article
September 12, 2006
Starting a portable GTAW business
Editor's Note: This is the last part of a four-part series on owning and operating a portable gas tungsten arc welding (GTAW) business. Part I , which appeared in the July/August issue of Practical Welding Today, focused on equipment and self-evaluation; Part II addressed potential... Read more...
Article
September 12, 2006
Improve your GTAW in 3 steps
An industry-standard manual gas tungsten arc welding (GTAW) torch package includes a torch body and a cable set, either 12-1/2 or 25 feet long. Front-end parts generally aren't included. While it may sound like the manufacturers are being cheap, it's really in your best interest, because... Read more...
Article
July 11, 2006
Article
June 13, 2006
Examining the finer points of 6010, 6011, and 7018
Photo courtesy of Hobart Brothers Co., Troy, Ohio. Editor's Note: This article first appeared on www.thefabricator.com on April 15, 2002. The student was terrified. "They're giving us 6011 instead of 6010!" he whispered. "Don't worry, it's just like 6010," I reassured him. We... Read more...
Article
May 9, 2006
Choosing a gouging method
In recent years environmental and quality issues have taken center stage in the welding industry. This increased emphasis on safety and health often is accompanied by reconsideration of how certain tasks are performed, for example, cutting and gouging metal. Gouging—a requirement... Read more...
Article
March 7, 2006
Guidelines for tungsten electrodes
Tungsten is a rare metallic element used for manufacturing gas tungsten arc welding (GTAW) electrodes. The GTAW process relies on tungsten's hardness and high-temperature resistance to carry the welding current to the arc. Tungsten has the highest melting point of any metal, 3,410 degrees... Read more...
Article
November 8, 2005
Using flat wire in GMAW
These shielding gas nozzles are standard for flat-wire applications. Companies that manufacture products requiring intensive welding are being forced to optimize their production processes and produce more efficient welding methods to remain competitive. They must use new technologies... Read more...
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