Segments in this Video

What Is Gas Metal Arc Welding? (01:47)


MIG welding (GMAW or gas metal arc welding) is an arc welding process that joins metals by heating them with an arc. The arc is between a continuously fed filler metal (consumable) electrode and the workpiece.

Components of a Gas Metal Arc Welding System (03:41)

A MIG welder uses direct current. MIG with shielding gas usually done in DCRP mode. The majority of MIG power sources are rated at a 60% duty cycle. The MIG electrode is a copper coated metal alloy wire. Components include the electrode gun and ground cla

Safe Welding Environment and Protective Equipment (02:58)

Always inspect the welding area for obstacles or slippery areas. Viewers learn how to create a safe welding environment. Protective equipment includes personal protective equipment (PPE), and clothing designed to protect the welder completely.

Types of Metal Transfer (02:01)

When using MIG systems, several transfer modes are available. These modes include short circuit, and globular. Modes depend on voltage, wire speed, arc length, and shielding gas.

Setting Up a GMAW System for Use (03:13)

Setting up a GMAW system must be done methodically and in the right sequence. Follow along with the step-by-step process as it is explained and demonstrated.

Laying a Bead (03:41)

A quality weld means good penetration of welding joint, proper tie-in to other beads, and minimal defects that will pass code. Follow step-by-step instructions and demonstrations from striking the arc, laying the bead, and restarting the weld.

Reading the Bead (02:26)

A welder must know how to manipulate the rod to produce a quality weld. A quality MIG weld means minimal defects, proper tie-in to other beads, and good penetration. Viewers learn how to correct poor beads.

Advanced Welding Techniques & Conclusion (02:37)

Advanced welding techniques include knowing how to weld the five basic joint types and their variations. MIG applications include the butt joint, edge joint, corner, lap, and "T" joint. To join metals secure the pieces firmly together in their intended la

Credits: Gas Metal Arc Welding (GMAW) (00:35)

Credits: Gas Metal Arc Welding (GMAW)

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Gas Metal Arc Welding (GMAW)

Part of the Series : Welding Processes and Fundamentals
DVD (Chaptered) Price: $99.95
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Also referred to as “MIG” (metal inert gas) welding, GMAW creates an arc with a solid wire fed through a MIG gun and melted to form a weld. This video guides students through the basics of gas metal arc welding, which is often used in automotive, structural, and production manufacturing. Helping students identify the correct duty cycle for the job at hand, the video explains the function and specifications of the electrode or “filler wire” as well as the other GMAW tool components. Safety, transfer modes, general setup procedures, laying and reading beads, and other topics are featured. A troubleshooting segment helps deal with problems like an erratic puddle, excessive spatter, porosity, poor penetration, and excessive penetration, with advanced GMAW techniques also explored. Correlates to all National CTE Organizational Standards (including the provisions of the Perkins Act). A viewable/printable instructor’s guide is available online. A Shopware Production. A part of the series Welding Processes and Fundamentals. (23 minutes)

Length: 24 minutes

Item#: BVL43940

ISBN: 978-1-62102-330-2

Copyright date: ©2012

Closed Captioned

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