This chapter shows how traditional approaches for statistical process control can be used for monitoring geometric tolerances. These approaches can be useful to quickly detect changes in the manufacturing process. In particular, two simple methods are presented. The first one uses standard variable control charts for monitoring over time the error associated with the geometric tolerance at hand. The second approach designs a control band around the mean shape of the feature associated with the geometric tolerance. Both approaches are shown with reference to the problem of monitoring a roundness form tolerance. Given their ease of use, the approaches are viable solutions for industrial practice.
Statistical Quality Monitoring of Geometric Tolerances: the Industrial Practice
PACELLA, Massimo
2010-01-01
Abstract
This chapter shows how traditional approaches for statistical process control can be used for monitoring geometric tolerances. These approaches can be useful to quickly detect changes in the manufacturing process. In particular, two simple methods are presented. The first one uses standard variable control charts for monitoring over time the error associated with the geometric tolerance at hand. The second approach designs a control band around the mean shape of the feature associated with the geometric tolerance. Both approaches are shown with reference to the problem of monitoring a roundness form tolerance. Given their ease of use, the approaches are viable solutions for industrial practice.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
