The Research on Standardization of White Light Measurement in Automotive Sheet Metal Parts Measurement

White light measurement is increasingly applied in automotive sheet metal parts measurement nowadays. Although white light measurement has substantially improved the measuring efficiency, this method has a low precision and poor reproducibility at present stage. This paper firstly analyses the process of white light measurement, then uses DMAIC Method to establish a unified measuring standard for white light measurement, in order to improve the precision and reproducibility of this method and promote the equipment utilization.