定型设计指在产品方案设计的基础上,进一步确定产品的具体结构,即从主要部件、关键零件的结构设计到产品结构设计,乃至绘制生产用图的设计阶段叫定型设计。产品设计的本质是功能设计。产品设计过程就是功能的物化设计或物化创造过程。我们知道,产品成本的70～80％取决于设计阶段,所 Stereotype design refers to the determination of the product’s specific structure on the basis of product design, ie, from the structural design of the main components and key parts to the product structure design, and even to the design stage of the production drawing. The essence of product design is functional design. The product design process is the process of materialized design or materialization. We know that 70 to 80% of product cost depends on the design stage.