Abstract
The term microwelding, also known as precision welding or microjoining, is somewhat elusive and consensus on a precise definition is probably very difficult to achieve. For this chapter a working definition is suggested, i.e. laser microwelding concerns the joining of parts having a weld bead size <1mm and a weld penetration depth of <1mm. Laser microwelding is used for joining high value miniature components in a range of industries (i.e., electronics, telecom, automotive and medical). Typical applications include catheters or implants, orthodontic brackets, fibre optic couplings to laser diodes, hermetic seals, watch part components and other photonic fabrication devices. This chapter reviews the basics of laser microwelding, including the laser choice for microwelding, the microwelding process and the quality of microwelds. The chapter also examines applications of microwelding and covers future trends in microwelding technology.
Published Version
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