고출력 CW Nd: YAG 레이저를 이용한 냉연강판 절단시 공정변수의 절단폭 영향성 분석

The objective of this study is to investigate the Influence of process parameters, such as power of laser, travel speed of laser and material thickness, on the practical cutting region and the kerf width for the case of cutting of CSP 1N sheet using high power Nd·YAG laser with continuous wave(CW), In order to find the practical cutting region and the relationship between process parameters on the kerfwidth, several laser cutting experiments are earned out The effective heat input is introduced to consider the influence of power and travel speed of laser on the kerfwidth together From the results of experiments, the allowable cutting region and the relationship between the effective heat input and kerfwidth for the case of cutting of CSP 1N sheet using high power CW Nd.YAG laser have been obtained to improve the dimensional accuracy of the cut area.