Click on the links below to learn more about each GD&T symbol or concept. Download our free wall chart for a handy reference, or purchase the Ultimate GD&T Poster—a large, detailed resource perfect for displaying in your facility, ensuring everyone has easy access to essential GD&T information.

Geometric dimensioning and tolerancing (GD&T) is a system for defining and communicating engineering tolerances via a symbolic language on engineering drawings and computer-generated 3D models that describes a physical object's nominal geometry and the permissible variation thereof.

2020年4月13日 · GD&T (Geometric dimensioning and tolerancing) is a system used to define and communicate the tolerances for engineering designs and computer-generated 3D solid models. The symbolic language in GD&T describes the geometry and allowable variation or error, it can specify the requirements of accuracy and precision of the CNC machining parts.

GD&T 是一种现代方式，您可以采用它来描述设计的尺寸和公差。 它优于传统的加/减公差，传统的加/减公差在集成到更大的隔间时不能保证设计零件的效率。

2025年1月16日 · GD&T is essentially a language for expressing the exact dimensions of a part and minimum and maximum acceptable tolerances. The GD&T symbols are a quick and …

This page shows a list of GD&T symbols and associated symbols used by ISO and ASME. “Learning GD&T From Scratch,” provided by KEYENCE, walks you through the basics of geometric dimensioning and tolerancing, datums, and …

Geometric dimension and tolerance or GD&T use a set of gd&t symbols form, orientation, location, and runout in a feature of a part or assembly. GD&T tolerances with linear tolerance can define allowable variations in a part or assembly geometry. ASME Y14.5-2009 standard has defined Geometric Dimension and Tolerance symbols in detail.

2024年10月7日 · The GD&T system focuses on size, location, orientation, and form (SLOF) to define parts’ geometric features. GD&T uses symbols and feature control frames to define tolerance zones and ensure precise part specifications. It also reduces misinterpretation, scrap, and rework in production while improving inspection and functional accuracy.

2022年6月17日 · GD&T is an important tool that helps engineers communicate the tolerances of a design. It is a precise language that allows for consistent interpretation of a drawing. GD&T …

在复杂零件中，可能需要建立多个DRF，但最终所有特征在零件中必须直接或间接地受到主要DRF的限制。 Sigmetrix 的 GD&T顾问 软件提供了方便的工具，用于定义零件上的特征，应用GD&T，并评估每个特征及其应用的GD&T，以确定特征的所有几何属性是否完全受限。