hi, im thinking about getting a tig from ebay (250192645293) for hobby purposes, but i want to know how it works, how do you tig weld and what materials can you weld with it, anyone know a good site and what do you think of the above machine, cheers
Ill give a quick breif on how tig works. Basically a tig torch produces an 'electrical flame' that 'flame' melts the parent material, you introduce a filler rod which melts together with both parent materials and produces a weld. Almost the same as gas welding except the tig torch is the flame and is far more controlable than a gas flame. You can weld mild steel, stainless steel, copper, aluminium on an AC tig. Most cheap TIG's are DC. The quality of TIG machine varies greatly as does the price. Higher spec machines have pulse modes etc which make it easier to weld thin materials. TIG is the slowest form of welding, but is the neatest.