Determining the production lot size for precision components

Manufacturers may periodically need to produce a specified number of precision parts whose dimensional tolerance is much narrower than the normal process range. Consequently, these parts can only be found through screening, which requires that an original batch size be determined, subject to an acceptable level of success. Several solution approaches are investigated, including exact analytic, approximate analytic, and Monte Carlo simulation methods. Subsequent to the evaluation of these procedures, numerical examples are performed in order to explore both the relationships which may exist among the parameters and the sensitivity of the results.