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GD&T Fundamentals

GD&T Fundamentals Training

 

This is an introductory course to the ASME Y14.5 - 2009 standard.  If you lack the confidence to specify, or are having trouble interpreting the specifications, this Geometric Dimensioning and Tolerancing (GD&T) training is for you. The training will focus on explaing why GD&T is essential and aim to bring each participant to a basic, operaional level of understanding. 


 

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Length: 3 days
Price: $1500 CDN

Prerequisite: A working understanding of technical drawings (perspectives, sections, details, etc.). 


Course Material Included: 

 

Fundamentals of GD&T Textbook 

Exercise Workbook with Tests and Quizzes 

 Revision Reference Chart – 11” x 17” GD&T Revision Reference Chart depicting Y14.5 changes from 1982 to 1994 to 2009. 

Characteristics Chart – This 11” x 17” chart is a quick-reference chart that gives the main aspects and rules of all 14 geometric characteristics. 

 
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Course Objectives

  • Introduce the concepts and some of the language of the Y14.5 standard.
  • Enable participants to understand each of the Y14.5 standard’s symbols.
  • Bring participants to a fundamental understanding of Datum Reference Frames.
  • Understand the definitions and the effects of Material Condition Modifiers.

 


 Outline

Introduction

 

  • Objectives and basic overview
  • History of Geometric Dimensioning and Tolerance
  • Comparison of the “traditional” method – Coordinate Dimensioning – to the Geometric Dimensioning approac

Demonstration of GD&T’s Strengths and Advantages:

 

  • As a Design Tool
  • As a Manufacturing Aid
  • As an overall Communications Facilitator

General Rules of Dimensioning and Drafting per the Standard:

 

  • Tolerance Zones
  • Definition
  • Comparison to Existing Systems

GD&T Symbology:

 

  • Definitions of all 14 geometric controls
  • Modifiers and other symbols

“Bonus” Tolerances:

 

  • Definition
  • How to take advantage of them
  • Datum shift

Datum Reference Frames:

 

  • Definition
  • Proper Construction and Selection

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