Statistical Approaches to Follow Industrial Processes and their Application to Data from Prototype Dipole Collars

This note describes some statistical methods that could be used to follow the industrial production of the main dipole components. The aim of the analysis is to establish an online procedure to study the data measured in the firms in charge of the component production. The presented analysis was applied for the collars, but it can be easily extended to other components. The aim is to try to identify the most suitable method to minimise the cost of quality and the non-conforming fraction of produced and delivered pieces. The methods and their application are described, and when they are not directly applicable, possible solutions are shown.