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Influence of process Parameters on the Surface Roughness and the Striation Formation of the Cut Section for the Case of Cutting of CSP 1N Sheet using High Power CW Nd:YAG Laser  

Ahn Dong-Gyu (조선대학교 기계공학과)
Kim Min-Su (조선대학교 대학원)
Park Hyung-Jun (조선대학교 산업공학과)
Yoo Young-Tae (조선대학교 메카트로닉스 공학과)
Publication Information
Journal of the Korean Society for Precision Engineering / v.23, no.7, 2006 , pp. 30-38 More about this Journal
Abstract
Laser cutting technology is one of flexible rapid manufacturing technologies with various advantageous including a high cutting speed, manufacturing of parts with a complex shape and others. The quality of the cut part and the optimum cutting conditions are highly dependent on the combination of the process parameters. The objective of this research works is to investigate the influence of process parameters, such as power of laser, cutting speed of laser and material thickness, on the surface roughness and the striation formation of the cut section for the case of cutting of CSP 1N sheet using high power Nd:YAG Laser with a continuous wave (CW). In order to find the relationship between process parameters and the surface roughness and the striation formation of the cut section, several experiments are carried out. Through the investigation of the empirical results, it has been shown that the surface roughness is highly related to the striation formation, including the frequency and angle of the striation, of the cut section. From the results of experiments, an optimum cutting speed for each cutting condition has been obtained to improve both the quality of the cut surface and the cutting efficiency.
Keywords
CW Nd:YAG laser; CSP 1N sheet; Surface roughness; Striation formation; Optimum cutting condition;
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Times Cited By KSCI : 2  (Citation Analysis)
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