Content tagged with "torch"

Results: 13

Article

January 11, 2005

Optimize your plasma performance This ensures a high concentration of heat to a small area. The shielding gas enters the arc zone and channels the plasma to the workpiece in a precise column. Because of the advanced level of arc control and accuracy, PAW is suitable for use in precision welding applications. The weld... Read more...

Article

November 20, 2003

Cool your torch The difference is a matter of degrees. In an automobile, the heat source is the combustion chamber inside the engine, which operates at temperatures in excess of 2,000 degrees F. In a plasma torch, the heat source is the plasma chamber inside the torch, where the temperature of the arc can... Read more...

Article

August 28, 2003

Making plasma cutting easier For many people, the world of plasma cutting is a complex and daunting place, with a cryptic set of rules that can be mastered only by highly trained technicians after weeks of training. For every change of material or thickness being cut, a long process ensues of resetting gas mixtures,... Read more...

Article

May 15, 2003

Brazing copper tubing This tool modifies copper fittings by making a shallow impression in the fitting wall, shortening the socket depth to 3/8 in. It should be used only for joints that will be brazed. Strength of Tube Joints Butt joints between copper tubes can be just as strong as the copper itself if... Read more...

Article

April 15, 2002

Cut to the chase Many applications that traditionally didn't use plasma cutting now can consider it a viable tool. End-user markets for plasma arc cutting have expanded over the last several years. Newer technologies—such as advanced, digitally controlled inverters—have resulted in... Read more...

Article

March 14, 2002

Beating the welder shortage, recession blues Skilled welders are hard to find. The economy is in recession. Production is down. And in the midst of these concerns, fabricators are concerned with welder safety. These issues are not new to welders and fabricating shops, but some say that such challenges are at an all-time high. These... Read more...

Article

February 19, 2002

How to Improve Your Welds: Helpful hints for GMAW Gas metal arc welding (GMAW) is a semiautomatic welding process that uses a wire electrode fed through a welding gun. This continuous wire feeding during welding frees up the welder and allows him or her to focus fully on the gun position so that the proper arc length is maintained. A typical... Read more...

Article

November 15, 2001

Gun Control: GTAW torch design innovations enhance productivity, quality Gas tungsten arc welding was developed during World War II to join hard-to-weld alloys such as zirconium, titanium, and aluminum. Later it proved to be equally successful on carbon, alloys, stainless steel, and other ferrous and nonferrous metals. Today GTAW is used heavily in the... Read more...

Article

October 11, 2001

Remote GTAW of spent fuel canisters: How this process reduces operator exposure to radiation Among many tasks that Nuclear Utilities perform is to ensure that radiation workers are exposed to the lowest possible amount of radiation. The industry has to follow strict exposure limits, and all nuclear energy workers must ensure the radiation exposure is as low as reasonably achievable... Read more...

Article

May 30, 2001

Using a hand-held plasma cutter Fabricators, contractors, maintenance personnel, artists, and do-it-yourselfers who experience a hand-held air plasma arc cutting machine rarely want to return to oxyacetylene cutting or mechanical cutting processes such as saws, cutoff wheels, shears, and snips. Plasma cutting can improve... Read more...

Article

May 30, 2001

Using plasma arc cutting to clean-cut stainless steel sheet and plate To cut stainless steels and other metals with plasma successfully, fabricators need the following tools: Precision machine motion controls A smooth linear drive system Software controls that automatically compensate and provide proper speed and acceleration and deceleration for... Read more...

Article

February 19, 2001

How to avoid the top 10 problems in plasma cutting: Practical tips you can use right now The old adage "measure twice, cut once" is as important for plasma arc cutting operators as it is for carpenters. The phrase could be reworded to "inspect twice, cut once" for the plasma industry. Careful preparation, setup, and maintenance can alleviate many costly problems which... Read more...

Article

February 19, 2001

Designing for successful robotic arc welding automation This dual robot system uses a large "Ferris Wheel" positioner to give the robots access to the underside of the parts to be welded. Automated robotic arc welding systems are used in all types of manufacturing. They can provide several benefits in certain welding applications. The... Read more...

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