国家标准《铸件尺寸公差、几何公差与机械加工余量》解读

Interpretation of National Standard"Castings-Dimensional Tolerances and Geometrical Tolerances and Machining Allowances"

介绍了标准的概况和主要内容,列出了标准修订前后的主要技术差异。通过实例说明,标准修订过程中测量数据的验证分析是运用数理统计的方法对实测数据进行系统分析而来,具有科学性和实用性。本标准是通用基础标准,是铸件生产、质量验收的依据。

The author introduces the general situation and main contents of the standard,and lists the main technical differences before and after the revision of the standard.The article lists an example to illustrate that the verification and analysis of the measured data in the process of standard revision is the results of systematic analysis of the measured data by using the method of mathematical statistics,demonstrating the scientificalness and practicability.This standard is a general basic standard and the basis of casting production and quality acceptance.