Technical Courses: Advanced Courses
Advanced Geometric Dimensioning & Tolerancing (GD&T)
Geometric Dimensioning & Tolerancing is an engineering tool used to accurately describe parts and manufacturing tolerances. Basic GD&T is reviewed and advanced concepts are discussed and applied in a workshop format.
COURSE CONTENT
Module I: Review of Basic GD&T
- Review the benefits of using GD & T
- Basic rules
- Changes in the standard
- MMC, LMC, RFS, and bonus tolerance
- Form tolerances
- Planar datums
- Datum targets
- Feature-of-size datums
- Orientation tolerances
- Location tolerances
- Runout tolerances
- Profile tolerances
- Review exercises
Module II: Advanced Concepts
- Selecting the proper datums and symbols
- Tangent plane modifier
- Free state condition
- Boundary concept for irregular features of size
- Datums at virtual condition
- Composite tolerancing
- Calculating tolerance stacks / critical wall thickness
- Gaging fixuturs and CMM inspection
- Special considerations for plastics – draft angle, parting line control
Module III: Advanced Exercises
- Review several generic drawings and interpret the GD & T
- Discuss the process flow for applying GD & T
- Review / discuss actual drawings (provided by the class)
- Wrap-up
Note: Your company is encouraged to provide engineering drawings to be used for customized exercises in the course.
