Plasma is superheated, compressed air that ionizes to form a conductive gas. This gas conducts electricity from the torch of the plasma cutter to the work piece, through a electrode and copper nozzle ...

An arc flash occurs due to a phase-to-ground or phase-to-phase short circuit. The extreme heat, light, and pressure blasts associated with these events make it necessary to take precautions when ...

Plasma cutters are ridiculously cheap these days, just cruise by the usual online sources or your local Harbor Freight if you’ve got any doubt about that. But “cheap” and “good” don’t always intersect ...

THIS is the fourth in the series of articles on welding safety. The central theme of these articles has been to emphasize that welding, if mastered and performed safely, is a rewarding profession, and ...

Anyone working in a fabricating shop or machining operations comes face to face with a steady stream of science and technology every day. Speeds, feeds, calculations, and reactions — you have to be ...

[Metal Massacre Fab Shop] has a review of a portable plasma cutter that ends up being a very good demonstration of exactly what these tools are capable of. If you’re unfamiliar with this kind of work, ...