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Handbook of Laser Welding Technologies by S Katayama

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1

Introduction: fundamentals of laser welding

S. Katayama,     JWRI. Osaka University Japan

Abstract:

This chapter describes characteristics of laser welding, features of main lasers used for welding, factors affecting weld penetration, laser welding phenomena including behavior of laser-induced plume, keyhole behavior and melt flows in a molten pool during laser welding. It also refers to welding defects and the recent trend for laser welding.

Key words

laser welding

CO2 laser

YAG laser

fiber laser

diode laser

fiber delivery

welding phenomena

welding defects

laser-induced plume

deep penetration

welding conditions

1.1 Characteristics of laser welding

Welding is the most versatile and realistic joining method applicable to the construction ...

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