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TIG welding, on the other hand, is a much slower and time-consuming process. Like with oxyacetylene welding, you have to manually add the filler material as you travel the length of the joint. TIG produces the neatest looking weld beads, giving you the traditional stack-of-dimes look. We obviously need more practice. Notice how the heat-affected zone is much wider at the end of the piece. As you reach the end of the joint, the heat has to spread out across a wider area because there is less distance to travel. This is why it is so easy to overheat and burn through the end of your joint. View Related Article
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