Which is Better? The Difference Between Air- and Water-Cooled TIG Welding Torches - Kevin Caron

	Which is Better? The Difference Between Air- and Water-Cooled TIG Welding Torches - Kevin Caron From www.kevincaron.com - What's the difference between an air-cooled torch and a water-cooled (actually coolant-cooled) torch? Why would you have one, the other or both? Artist Kevin Caron shows his air-cooled TIG welding torch, a WP-26F, and his water-cooled TIG welding torch, a WP-20, and explains that the numbers indicate the size of the head and the size of the cup. That's of some importance as he compares them head-to-head. Caron then explains how the water-cooled TIG welding torch works, with the coolant circulating through the torch itself, then heading back to the cooler. By cooling the torch, you can weld at higher amperages for longer periods of time. Caron points out that his water-cooled torch will actually get a little warmer because it's larger, but predicts there will still be a surprising difference between the temperature of the two torches after welding. He's using the same tungsten in each torch with his Longevity TigWeld 250 AC set at 200 amps. He tests the air-cooled torch first, welding for one minute, then shooting it with an infrared thermometer. At the trigger, the air-cooled torch is 105 degrees. At the junction where the tungsten is, the torch is 170 degrees, and 102 at the collet. Next, he welds one minute with the water-cooled torch. The difference is dramatic: the welding torch is 89 degrees at the trigger, 89 degrees at the tungsten, and 145 degrees at the collet. That's how much the water-cooled torch helps after just one minute of welding ...	From:kevincaron Views:2 0ratings
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