论文部分内容阅读
在CAD/CAM系统中如何经济分配公差已成为产品设计的一个重要因素,因为它直接决定产品加工成本。提出了一个新的公差成本关系数学模型,并证实比其它模型具有更高的精度,把该数学模型应用于公差分配中,结合该模型同时提出一个优化加工工艺计算方法。最后采用一个航空发动机叶轮零件来验证此方法的的计算效率和精度。
How to allocate tolerances economically in CAD / CAM systems has become an important factor in product design because it directly determines the cost of product processing. A new mathematic model of the relationship between tolerance and cost is proposed, which is proved to be more accurate than other models. The mathematic model is applied to the tolerance distribution. At the same time, an optimization calculation method of machining process is proposed. Finally, an aeroengine wheel part is used to verify the computational efficiency and accuracy of this method.