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Step Pulse Shaping Technique for Nd:YAG Laser Using a Multi-Switching Method  

Kwak, Su-Young (Korea Hydro & Nuclear Power Company)
Park, Jin-Young (Dept. of Electrical and Electronic Engineering, Pusan National University)
Kim, Su-Weon (Samsung SDI)
Min, Byoung-dae (LG Electronics)
Chung, Hyun-ju (Dept. of Electrical and Electronic Engineering, Pusan National University)
Kim, Hee-je (Dept. of Electrical and Electronic Engineering, Pusan National University)
Publication Information
KIEE International Transactions on Electrophysics and Applications / v.4C, no.2, 2004 , pp. 55-59 More about this Journal
Abstract
Throughout manufacturing processes, pulse shaping is required for material processing and it is regarded as an important (actor according to the specific characteristics of materials. Therefore, this study suggests a highly appropriate pulse shaping technique using a multi-switching method. This is a pulse superposition method in which one flash lamp can consecutively turn on by the double switching of the discharging system. It is possible to construct a variety of pulse shapes and pulse widths by the consecutive trigger of the silicon-controlled rectifiers (SCR) of a PIC (program integrated circuit) one-chip microprocessor. The use of this technique can provide a number of advantages to people who require suitable pulse shaping for particular applications such as welding, cutting, and drilling.
Keywords
multi-discharge; PIC one-chip microprocessor; pulse shaping;
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