$CO_2$ 레이저를 이용한 자동차용 고장력 TRIP 강 용접의 용접부 품질 분류에 대한 연구

A study on classification of weld quality in high tensile TRIP steel welding for automotive using $CO_2$ laser

In automotive industry, the studies about light weight vehicle and improving the productivity have been accomplished. For that, TRIP steel was developed and research for the laser welding process have been performed. In this study, the monitoring system using photodiode was developed for laser welding process of TRIP steel. With measuring light, neural network model for estimating bead width and tensile strength was made and weld quality classification algorithm was formulated with fuzzy inference method.