Study of automated procedures for surface defects analysis on die-cast components by using fringe projection systems

摘要

Quantitative surface defects analysis in high-pressure die-casting is relevant both for quality assurance of part functionality and for monitoring the functional surfaces of dies. Advanced optical techniques for digitization of parts enable fast identification of surface irregularities and their measurement. The use of automation and appropriate enclosures enables quality control operations directly in the manufacturing environment, increasing measurement repeatability, reducing inspection time and direct labour resources. The paper reports on a case study and illustrates the implementation of a fringe projection system for the analysis of surface defects on high-pressure die-castings, including the development of automated evaluation routines.