Dimensional Variation Management (or Tolerance Stack-up Analysis) has variety of application. Virtually any assembly consisting of multiple parts and requirements are to evaluate fitment, clearances, gaps or interferences, overall dimensions and worst case as well as statistical scenarios of these objectives.
Dimensional Variation Management is of very high importance in case of automobiles (passenger cars), air crafts, where designer, manufacturer, process planning has meet dimensional goals of the entire product, thus meeting dimensional quality of product close to industry benchmark figures. The non-compliance to dimensional goals may lead to poor part/assembly function, misalignments, interferences, uneven and wide/close gaps, vibrations, noise, reduced product life, robustness, warranty claims and customers overall perception of product quality affecting market share.
Dimensional Variation Management Application Areas: