Regression analysis: A good practice for parameter exploration and optimisation in laser welding process

Regression analysis is a powerful and conceptually simple technique for historical data exploration of welding parameters in laser welding process for coil joining. This technique combined with a Quality Control Data System based on camera sensors and a dynamic pattern extraction technique can help to identify important features and relationships in historical data. The visualisation of functional relationships between parameters enhances the identification of the parameters behaviour. Moreover, it provides a reliable support to identify tendencies and outliers, optimise welding parameters and rapidly decide about future parameter settings in large collections of data in laser welding applications for coil joining.