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Tolerances

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Tolerances

Starting a GTAW Weld Pool with Filler

By Sue Silverstein, Dave Hoffman

Students view a video that shows the correct methods for starting a GTAW weld pool and adding filler. It focuses on the two problems that many students have – adding filler too soon and angling the torch so that the filler melts prematurely on the filler rod. Note: This activity is 3.6 mb.
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The Basics of Welding Electricity

By Jessie Jelinski

Explore welding electricity fundamentals including electron theory, parts of a circuit, welding power sources, and types of current.
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Decimals to Fractions

By Jessie Jelinski

Decimals to Fractions
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GTAW Setup Guide

By Jessie Jelinski

GTAW Setup Guide
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