Estimating Manufacture Cost in Tolerance Optimization

The optimization of tolerance design, concerning minimizing cost as its target, serves significantly in product design. In all the items of the total cost, the manufacturing cost is the most direct and necessary one. Manufacturing cost estimating is a prime problem in modeling the relationship of tolerance and cost. In this paper, a method to model the relationship of tolerance and manufacturing cost called multi parameter function is developed based on analysis and comparison of traditional models. An example to illustrate the method and its necessity and rationality is presented.