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Thermal Arc Presents Basic Techniques in Welding Thermal Arc presents a helpful reference guide for beginning and intermediate welders. This guide was written to educate you on the basics of welding, including welding terminology, basic setup, safety precautions, Stick and TIG welding techniques, and types of welds and joints. This guide is not meant to replace training nor to serve as a safety guide. I. Introduction to Welding Thermal Arc thanks you for your interest in this guide, and we’re thrilled you’ve chosen to further your interest in the world of welding. While welding may not be your area of expertise, we’d like to help you learn some basics. The information in this guide is an excellent reference to help you tackle several projects from those around your home and garage, to light fabrication, and maintenance / repair applications. 4
Glossary of Terms Alloy A mixture with metallic properties composed of two or more elements, of which at least one is a metal. Amperage Amperage is a measure of how much electricity is flowing through your electrode, also referred to as current. Arc The arc is the physical gap between the end of the electrode and the base of the metal while current is passing through. Bead A bead is the completed weld joint on the work surface produced when the electrode or wire is fused into the base metal. Collet The piece inside the torch body that holds the tungsten electrode in the TIG torch. Consumable Consumable refers to an electrode, or component that is consumed or used during the welding process, such as an electrode coated in flux. Current Current is the flow of electricity through an electric circuit. Current is measured by amperage. Duty Cycle The Duty Cycle is the length of time a welding machine can operate during a ten-minute interval at a given amperage. Electrode Also called a welding rod, is a filler metal in the form of wire or rod, through which current is conducted between the electrode holder and the welding arc. 5
Page 2 and 3: Table of Contents Introduction to W
Page 6 and 7: Electrode Holder A device that hold
Page 8 and 9: Safety Precautions It’s always im
Page 10 and 11: Stick (SMAW) Setup Set Process Sele
Page 12 and 13: Lift TIG (GTAW) Setup 12
Page 14 and 15: Types of STICK (SMAW) Electrodes Ar
Page 16 and 17: IV. Types of Welds and Joints Makin
Page 18 and 19: C. Vertical Welds Tack weld a secti
Page 20 and 21: Additional Weld Joint Types Open Sq
Page 22 and 23: Tungsten Preparation & Sharpening F

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