ISO 8062-4:2023 产品几何量技术规范（GPS） 模制零件的尺寸和几何公差 第4部分：在一般基准系统中使用轮廓公差的铸件的规则和一般公差

标准编号：ISO 8062-4:2023

中文名称：产品几何量技术规范（GPS） 模制零件的尺寸和几何公差 第4部分：在一般基准系统中使用轮廓公差的铸件的规则和一般公差

英文名称：Geometrical product specifications (GPS) — Dimensional and geometrical tolerances for moulded parts — Part 4: Rules and general tolerances for castings using profile tolerancing in a general datum sys

发布日期：2023-05

标准范围

本文件规定了最终模制零件和由模制零件加工而成的零件的几何尺寸和公差规则。它还规定了在技术产品文件中指示这些要求的规则和惯例，并规定了要使用的图形符号的比例和尺寸。本文件提供了用于识别模制特征和零件的相对完整性的符号。这些图形符号不同于ISO规定的表面纹理图形符号？1302[1]，其明显更大。本文件使用与保留在最终零件上的通用基准系统相关的表面轮廓公差来指定通用几何公差。它还规定了由各种铸造制造工艺生产的所有铸造金属及其合金的铸件的加工余量和拔模角（锥度）。本文件确立了一般几何公差表示的一般原则，适用于所有学科和行业的2D技术图纸，但也适用于3D应用。笔记？所有图仅在2D视图中示出。当加工铸造基准曲面时，本文档不适用。[1]取消并由ISO 21920-1取代。

This document specifies the rules for geometrical dimensioning and tolerancing of final moulded parts and parts machined out of moulded parts. It also specifies rules and conventions for the indications of these requirements in technical product documentation and specifies the proportions and dimensions of the graphical symbols to be used.

This document provides symbols for identifying the relative completeness of the moulded features and parts. These graphical symbols differ from the graphical symbols for surface texture according to ISO 1302[1], which are notably larger.

This document specifies general geometrical tolerances using surface profile tolerances related to a general datum system that remains on the final part. It also specifies machining allowances and draft angles (tapers) for castings in all cast metals and their alloys produced by various casting manufacturing processes.

This document establishes the general principles for presentation of general geometrical tolerances that apply to 2D technical drawings in all disciplines and trades but which are also applicable to 3D applications.

NOTE            All figures are shown in 2D views only.

When cast datum surfaces are machined, this document is not applicable.

标准预览图