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Geometric Dimensioning & Tolerancing (GD&T) to ASME Y14.5 – Level 1

The course covers the fundamental concepts of GD&T and its application and interpretation. The course is suitable for anyone who is familiar with the conventions of engineering drawing and dimensional (or ±) tolerances, and is relevant to anyone who has to produce or interpret mechanical engineering specifications.

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Description

Course Aim:

The course is based on the American ASME Y14.5 standard, and is applicable to users of the 1994, 2009 and 2018 revisions (a version is also available based on the British BS 8888 standard and the ISO standards which it references). Delegates are provided with comprehensive course notes, and a workbook with questions and exercises to accompany the training material.

The course covers the fundamental concepts of GD&T and its application and interpretation. The course is suitable for anyone who is familiar with the conventions of engineering drawing and dimensional (or ±) tolerances, and is relevant to anyone who has to produce or interpret mechanical engineering specifications.


Course Contents (Modules)

  1. Standards in context
  2. Benefits of geometric tolerancing
  3. Features and features of size
  4. Rule #1 and the Envelope Requirement
  5. Datums and datums systems
  6. Feature Control Frames
  7. Geometric tolerance characteristics
  8. Maximum Material Condition modifier and Virtual Condition Boundaries.

Learning Outcomes

Participants will learn about:


• ASME & ISO: the two systems of standards for mechanical specification


• The benefits of using GD&T


• How Geometric Tolerancing works (four fundamental geometric properties)


• Features and Features of Size


• Rule #1 and the Envelope Requirement


• Datums and datum features (Datum Feature Simulators and True Geometric Counterparts)


• Common datums (based on multiple datum features)


• Datums systems, Datum Reference Frames and the six degrees of freedom


• How to select and identify datum features


• the use of datum targets


• Basic Dimensions


• Feature Control Frames


• Unrelated and Related Actual Mating Envelopes


• Tolerance characteristics & symbols


• Feature Control Frames modifiers


• How to apply geometrical tolerancing in a systematic way


• Inner and Outer Boundaries


• Maximum Material Condition modifier and bonus tolerance


• Virtual Condition boundaries

Learner Profile

Designers, Engineers, Inspectors, Technicians and Engineering Management

Duration/Delivery Mode:

3 Day Classroom


Onsite IMR

Certification/Awarding Body

Engineers Ireland CPD approved for 21 Hours