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并行工程要求在进行产品设计的同时 ,就要考虑其制造加工过程的可行性与成本问题。对设计公差与制造成本的关系进行建模 ,无疑是进行公差优化中的基础工作。本文分析了公差—成本曲线的特征及意义 ,对传统的曲线拟合方法进行了分析比较 ,提出了对设计公差与制造成本关系的建模方法。
Parallel engineering requirements in the product design at the same time, it is necessary to consider the feasibility of manufacturing process and cost issues. Modeling the relationship between design tolerances and manufacturing costs is undoubtedly the foundation for tolerance optimization. This paper analyzes the characteristics and meanings of the tolerance-cost curve, analyzes and compares the traditional curve fitting methods, and puts forward the modeling method of the relationship between the design tolerance and the manufacturing cost.