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Introduction I I I
Gas Metal Arc Welding Handbook provides a simple but complete introduction to
Gas Metal Arc Welding (GMAW), which has long been an important welding process.
Improvements in GMAW over the years, as well as refinements in the equipment, have
established its position as a major industrial welding system. This Handbook covers
GMAW principles, equipment, modes of operation, and safety in a straightforward, no-
nonsense manner.
The organization of the chapters in this book will lead you step-by-step through the
principles and practices of this important welding process. New material is introduced as it
is needed. Topics covered include:
• Basic operation of each component of the system.
• Safety practices specific to working with electricity, shielding gases, and other
welding hazards.
• Various types of welds and weld joints.
• Welding techniques and procedures for several different metals.
• Weld defects and how to avoid them.
• Special procedures and techniques for welding auto bodies, trucks, and off-road
vehicles.
For a beginning student of welding, the book provides the background needed for
success in a welding career. Advanced students will find it valuable as a “refresher” course
and for its detailed coverage on how to weld various metals using the modes common to
the industry.
A careful study of this Gas Metal Arc Welding Handbook and practice of the
welding procedures it covers will provide you with the knowledge and skill you need to
secure employment as a welder.
William H. Minnick