Geometric Dimensioning & Tolerancing (GD&T) (915103)
To better define a product, geometric dimensioning and tolerancing (GD&T) is often used as a symbolic way of showing specific tolerances on drawings. GD&T is a valuable language that communicates the design intent to manufacturing and inspection. It is governed by the technical standard ASME Y14.5-2009. This course covers all aspects of GD&T. In addition to learning the theory, participants will see numerous examples that demonstrate specific applications. Participants are welcome to bring sample prints to the class for discussion or private consultation.
- Describe the benefits of using geometric dimensioning and tolerancing.
- Explain how Rule #1 imposes certain geometric controls automatically.
- Identify whether a given feature is considered a surface or a feature of size.
- Interpret feature control frames, and identify correct/incorrect syntax in a given feature control frame.
- Calculate virtual condition and describe why it is important.
- Define a basic dimension, and explain how it relates to GD&T.
- Recognize the MMC modifier and calculate the appropriate bonus tolerance.
- Describe the tolerance zone for each of the 14 GD&T symbols.
- Correctly identify datum features and determine their order of precedence.
- Determine proper inspection methods for a given GD&T callout.