产品公差的优化应在满足使用要求及加工能力允许的条件下以成本最小为目标。为更全面地评价产品公差设计对产品周期成本的影响 ,从全局上优化产品公差 ,提出在公差设计中应考虑质量管理成本。阐述了质量管理成本的含义、分析了质量管理成本的组成因素 ,并运用统计质量管理方法 ,建立了公差与质量管理成本关系的定量模型。 The optimization of product tolerances should be aimed at minimizing costs, provided that the requirements for use and processing capabilities are met. To more fully evaluate the impact of product tolerance design on product cycle costs, optimize product tolerances globally and propose that quality management costs should be considered in the design of tolerances. Explained the meaning of quality management costs, analyzed the components of quality management costs, and used statistical quality management methods to establish a quantitative model of the relationship between tolerances and quality management costs.