TIG stands for Tungsten Inert Gas. Basically you have a Tungsten electrode surrounded by a flow of inert gas. The welder creates an arc (sort of a sustained spark) with the electrode and uses the heat from the arc to heat/melt materials together. Sometimes material is added to the weld in the form of a thin rod and sometimes it's enough merely to melt the original material where the pieces meets up. The gas flow is needed to keep the molten material from oxidizing in contact with the air, which can prevent the weld from reaching its full strength.Originally posted by Xandre
Hey guys, just wondering I've heard of Tig welding,
What? TIG welds can be very smooth due to how they're done, but so can most types of welds if the operator is skilled enough.I think there's like "silk" welding???
There are a number of other welds. Oxyacetylene for instance, where you use a mixture of oxygen and acetylene to get a flame that's hot enough to melt metals together. There are MIG/MAG welds where you have a wire electrode surrounded by a protective gas. The electrode carrries the current to the spot to be welded and simultaneously acts as the additive material as it's being fed out by the welding machine. There are "stick" welds, much like MIG/MAG with a wire electrode that both carries the current and melts into the weld. Biggest difference is that a stick weld hasn't got any protective gas flow but instead relies on a thick coating of flux material on the electrode (the stick) to keep the weld from oxidizing.and I know there's another type of weld....Just wondering what are the differences?
Butted means that the tube walls are thicker at the end (where the joints are) than at the middle. Makes frames lighter by putting the material where it's most needed. Joints and seams always acts as force concentrators and can often benefit from being reinforced.Also what are butted tubes?
You're wrong here. If you have a good fit between the pieces, and if the pieces are thin enough to get good penetration of the heat zone and if the load case is right it is fully possible to do a TIG weld without adding any material, although I admit that adding material is the more common way of doing things.Originally posted by jon
Tig welding always uses a rod to join the metals together. You never just melt the existing metals.
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