ABSTRACT

When not carefully considered and controlled. tolerance stack-up can result in serious functional and manufacturing problems. Tolerance stack-up is therefore a major quality risk for most products. Tolerance design is the purposeful planning of the product design to guard against, and if possible, avoid the negative consequences of tolerance stack-up. It involves both the development of the part decomposition and the assignment of tolerances to individual component dimensions. In this chapter, we present a simple methodology for performing tolerance design.