How To Get Color When Tig Welding
The colors on the surface of the weld have NOTHING to do with your welding.
How to get color when tig welding. Thats why its best to strive for a shiny chrome color in your weld. You can get the lower heat input when you reduce the amperage and voltage. Once again for simplicity all you need is to have pure tungsten for aluminum and either thoriated or ceriated tungsten for steel and stainless.
The burning contaminants could be machining oil or any thing it was in contact with. The formula to calculate the heat input is 60xAmpsxvolts 1000 x travel speed in inmin KJin. If you were to use a really large tig nozzle things would improve.
Corrosion puts the integrity of the weld in jeopardy. The colorsoxides are formed at 975ยบ and below when contaminants on the surface burn. Thoriated will be red and ceriated will be orange.
MattM Tig Welding can be a black art if you start on your own with no direction. After welding finished the welding quality can be evaluated by visually checking the discoloration of welding surface. March 24 2015 By.
It is just a matter of the argon shielding envelope leaving the hot metal before it has a chance to cool enough to not oxidize. TIG welding copper and copper nickel alloys are typically done with pure Argon and sometimes Argon Helium 75 Ar 25 He gas mixture. Pure will have a green band in one of the ends.
TIG welds with a range of colors are usually made on steel. To get rid of grey or dull color you need. Even if you cleaned it.