ASME Y14.5 GD&T for Manufacturing - Introductory Level

This 1-day introductory-level course builds on fundamentals of geometric dimensioning and tolerancing and teaches the impact of GD&T on the manufacturing process. The course focuses on the basic requirements of engineering drawings, size dimensions, form tolerances, and the datum system, as well as how tolerancing requirements affect production.

Each attendee receives:
  • A GD&T for Manufacturing Workbook 
  • A GD&T Ultimate Pocket Guide (2009)
  • Class handouts 

Newly acquired learning is reinforced with numerous practice exercises.

What Will You Learn

After completing this class, you will be able to:
  • Understand the basic facts about engineering drawings
  • Recognize the types of dimensions and tolerances used on engineering drawings
  • Explain the basic concepts and requirements of size dimensions
  • Answer five basic questions for interpreting form tolerances
  • Describe the basic concepts of the datum system and planar datums
  • Describe the basic concepts of datum targets and size datums
  • Answer five basic questions for interpreting orientation, position, runout, and profile of a surface tolerances
  • Explain the purpose and limitations of in-process inspection methods
  • Assess the GD&T on a typical drawing and determine the impact to manufacturing

Course Requirements

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  • Introductions
  • Workshop format, participant expectations, and scope
  • Why understanding GD&T is important to you and your company
  • Agenda
Basic Facts About Engineering Drawings
  • Purpose of engineering drawings
  • Relationship between drawings and part function
  • Applicable standards
  • Why engineering drawing are legal documents
  • Three fundamental rules from ASME Y14.5
Types of Dimensions and Tolerances
  • Five geometry attributes of a part
  • Six general dimensioning symbols
  • Difference between general notes and flag notes
  • Introduction to GD&T
Concepts of Size Dimensions
  • Size dimension
  • Feature / feature of size
  • MMC / RFS
  • Rule #1
Form Tolerances
  • Geometry attributes affected by form tolerances
  • Basic requirements of form tolerances
  • Flatness, straightness, and circularity tolerances
  • Bonus tolerances
Datum System and Planar Datums
  • Consequences of not using the datum system
  • Benefits of using a datum system
  • Planar datums
  • Rule for referencing datum features
  • Datum reference frames
  • How a datum axis and datum center plane are indicated on a drawing
  • Effects of referencing a datum at
Orientation Tolerances
  • Geometry attributes affected by orientation tolerances
  • Basic requirements of orientation tolerances
  • Interpreting an orientation