Abstract
Since its initial development, the laser has been hailed as a potentially useful welding tool for a variety of applications. The scope for technical and commercial laser welding applications has increased greatly since the development of multikilowatt CW CO2 lasers around 1970. The laser’s capability of generating a power density greater than 106 watts/cm2 is a primary factor in establishing its potential for welding. Numerous experiments have shown that the laser permits high-quality precision weld joints rivaled only by electron beam. This article will present the state of the art of laser welding by reviewing recent work in the field.
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