The Total Source Error of Adjustment model: A methodology for the elimination of setup and process adjustment

The Total Source Error of Adjustment (TSEA) model identifies and describes the sources of error that create the need for setup and process adjustment. Adjustment is the result of uncontrolled sources of variation or error. To control error, it must first be systematically identified and described. The TSEA model is a systematic means of identifying and classifying the error sources contributing to setup adjustment and process adjustment for machining processes. Once error sources are properly classified, touch-trigger probing can then be effectively used to eliminate variability. When implementing the TSEA model, probing is applied to control error sources of adjustment. A case study examines the utility of the TSEA methodology in identifying the sources of variation causing adjustment. The analysis and control of error sources that occur in machining will reduce setup time, increase consistency in manufacturing, and improve the quality of the final product.