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Applications of GD&T

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Who should attend: This seminar is intended for those who have already taken a fundamentals course in geometric dimensioning and tolerancing in accordance with the ASME Y14.5 standard. When representatives from design, quality, production and suppliers can attend, this course is most effective.

Course Description: (24 Hours)

Participants will learn how to apply GD&T to a variety of situations including your own parts. Sharpen your Geometric Tolerancing skills, fill in gaps, get your questions answered, make GD&T more useable, reduce product cost, improve datum feature selection, and create robust designs. Learn how to use the GD&T Hierarchy. Advanced concepts on the application of profile and position as well as fixed and floating fasteners will be discussed. Learn how to properly select datum features and specify tolerances. Expand knowledge of simultaneous requirements, composite tolerancing, profile tolerancing, robust design, and boundary calculations.

Bring your drawings and questions to this intense training seminar.

 

 

Introduction

  • Course Objectives
  • Drawing Previews
  • The GD&T Hierarchy
  • Size
  • Form
  • Orientation
  • Location
  • Initial tolerance values based on process capability

    • Fundamentals Review

  • Rule #1
  • Boundaries
  • Datum features at MMB, LMB, and RMB

    • Application Examples

  • Dynamic tolerancing diagrams
  • Bonus tolerance vs surface boundaries
  • Tolerances of zero at MMC

    • Fixed and Floating Fasteners

  • Floating Fastener Designs
  • Adding robustness
  • Calculations
  • Zero at MMC applications
  • Fixed Fastener Designs
  • Projected tolerance zones
  • Calculations

    • Datum Features & Datum Reference Frames

  • Datum feature selection guidelines
  • Degrees of freedom
  • The process of establishing a datum reference frame
  • Exact constraint and datum feature design considerations
  • Feature grouping, patterns, and simultaneous requirements
  • Tolerancing datum features

    • Locating Features

  • Choosing the tolerances needed to control the location of features, based on the feature type and functional considerations
  • Position, profile, and runout tolerances
  • Single segment and composite feature control frames

    • Refinements

  • Enabling the loosest possible size tolerance, or location tolerance, by refining form, orientation, feature-to-feature location within a pattern, or orientation of a pattern to meet functional needs at the lowest possible costz

  • Sample Problems

    Student Supplied Applications

    • Additional Information:

    Prerequisite: GD&T Fundamentals or equivalent.

    Free phone and email consultation is available following the course

    All courses are taught in accordance with the ASME/ANSI unless requested otherwise

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