尺寸公差和几何公差之间的关系

The Analysis of Relations among Dimensional Tolerances and Geometric Tolerances

航空发动机设计时,尺寸公差和几何公差的选取是必不可少的工作。这些参数的合理选择不仅影响机械零件的功能和使用寿命,而且还关系着零件加工的难易程度和经济效益。本文分析了尺寸公差和几何公差之间的关系,为零件的设计提供理论依据。

In the process of aero-engine design, the selecting of dimensional tolerances and geometric tolerances are essential work.The rational selection of these parameters not only affects the function and service life of the parts, but also is related to the processingdifficulty and economic benefit of the parts. The relationship between dimension tolerance and geometric tolerance is analyzed in this paper,which provides the theoretical basis for the design of parts.