Fundamentals of Geometric Dimensioning & Tolerancing (GD&T)     

Part of the SAE Geometric Dimensioning & Tolerancing Web Seminar Series
Webinar On-site
Delivery
Certificate
Program

I.D.# WB0933Printable Description
Duration: 16 Hours
Show Session Dates
February 16-March 4, 2015 (8 Sessions ) - Live Online
 
Show Session Dates
August 11-September 3, 2015 (8 Sessions ) - Live Online
 

Geometric dimensioning and tolerancing (GD&T) is used as a symbolic way of showing specific tolerances on drawings. GD&T is a valuable tool that effectively communicates the design intent to manufacturing and inspection. It is governed by the technical standard ASME Y14.5M-2009. This course introduces participants to the GD&T system, providing a working knowledge of the correct interpretation and application of each symbol, general rules, the datum system, and 'bonus' tolerance and highlighting some of the changes in the updated Y14.5 standard. The material is reinforced with many practice exercises.

Note: A similar course is available as a classroom seminar.

Learning Objectives
By participating in this web seminar, you will be able to:

  • Explain the benefits of geometric tolerancing
  • Identify datum features and determine their order of precedence
  • Identify and interpret each of the characteristic symbols
  • Describe the material condition modifiers and how "bonus" tolerance occurs
  • Correctly interpret GD&T feature control frames, and explain the impact on manufacturing and inspection

Who Should Attend
This course is ideal for anyone who has a need to apply or interpret geometric tolerances on a product print. Product engineers, manufacturing engineers, CAD designers, quality inspectors, and other engineering and manufacturing personnel will all benefit from a better understanding of design requirements; improved communication with customers and suppliers; and improving designs by taking advantage of bonus tolerance and other GD&T benefits. Participants should have an understanding of basic blueprint reading.

if you already are applying basic GD&T concepts, you may be interested in the advanced competency courses in the GD&T Web Seminar Series.

Topical Outline
Session 1

  • Why Use GD&T?
    • Review of traditional dimensioning
    • Benefits of GD&T
    • Technical standards
    • Definitions
    • Basic dimensions
    • How to read the feature control frame

Session 2
  • Rules and the Form Symbols
    • Rule #1: Size controls form
    • Rule #2: Assume RFS
    • Flatness
    • Surface straightness
    • Circularity
    • Cylindricity

Session 3
  • Bonus Tolerance
    • GD&T applied to a feature of size
    • Bonus and the MMC modifier
    • Virtual condition
    • Gaging and inspection of GD&T

Session 4
  • Datums
    • Datum vs. datum feature
    • The datum reference frame
    • Primary, secondary, and tertiary datums

Session 5
  • Profile and Orientation
    • General definition of profile
    • Profile of a line
    • Profile of a surface
    • Use of datums with profile
    • Perpendicularity
    • Angularity
    • Parallelism

Session 6
  • Position Tolerance I
    • True position
    • Position tolerance RFS
    • Using MMC or LMC
    • The "boundary" concept
    • The pitch diameter rule

Session 7
  • Position Tolerance II
    • Projected tolerance zone
    • Inspecting parts for position
    • Calculating tolerance values
    • Composite position tolerance

Session 8
  • Symmetry and Coaxial Controls
    • Concentricity
    • Symmetry
    • Circular runout
    • Total runout
  • Wrap-up

Instructor(s): John-Paul Belanger
John Paul BelangerJohn-Paul Belanger is president of Geometric Learning Systems, a consulting firm specializing in geometric dimensioning and tolerancing (G D & T). For over ten years, he has trained people throughout North America and Europe in the proper interpretation and application of G D & T per the Y14.5 standard by using practical examples. Mr. Belanger is certified by the American Society of Mechanical Engineers as a Senior G D & T Professional, and has worked with a wide range of companies in the automotive, aerospace, electronic, and other industries to apply tolerances and perform stack calculations. He holds a B.S. in aerospace engineering from the University of Michigan specializing in aircraft design and safety.

Registration Information
Registration for this live web seminar is available on a per-person basis, similar to purchasing a seat in a classroom. Participants attend an online session from work or home; anywhere with a PC with internet access (at least 56K) and a telephone. The fee includes one connection to the conference calls (toll free telephone number provided for U.S. and select countries*) and assigned personal ID number; one connection to SAE's online training center (via WebEx); and access to a secure course in the SAE Learning Center that contains the presentations, class session recordings, supplemental materials, and assignments.

Registrations will be accepted until 5:00 p.m. the day before the start of the web seminar, but early registration is encouraged to allow for pre-course set-up and instructions.

*Global toll-free telephone numbers are provided for many countries outside the U.S., but are limited to those on the WebEx call-in toll-free number list. Check here to see if your country has a global call-in toll free telephone number for this web seminar. If your country is not listed, you may still connect using the US/Canada Call-in toll number or Voice over Internet Protocol (VoIP).

Although WebEx Training Manager will automatically launch when you join the web seminar, you or your system administrator are encouraged to download the plug-in in advance to help ensure successful setup. Click here, then follow the onscreen instructions.

NOTE: The course presentation will be recorded and made available for 30 days to those who register by the deadline.

Multiple Seat Discount - 50% off more than one!

  1. Register for this course at the appropriate list or member price and enjoy a 50% discount off the list price of the other GD&T web seminars in this series (includes Advanced GD&T Competencies: Datum Usage; Advanced GD&T Competencies: Profile of a Surface; Advanced GD&T Competencies: Composite Positioning).
  2. Register one individual at the appropriate list or member price, then register as many additional employees at half off the list price. To receive the discount, register all individuals at the same time or mention the confirmation number for the first registrant. The offer is good for only the same web seminar series and dates. All registrants will receive a personal account and opportunity for CEUs.
Discount applies to web seminar(s) of equal or lesser list fee. Registration by phone with SAE Customer Service is required to take advantage of these discounts.

Cancellations
Can't attend on the date/time above? The presentation will be recorded and made available for 30 days to those who are registered, regardless of availability for the live session. If you still need to cancel, transfer to a future offering, or designate a substitute, a full refund is issued if you notify SAE at least 14 days prior to the web seminar start date. If less than 14 days prior, please contact SAE Customer Service to discuss options*. NOTE: SAE reserves the right to cancel web seminar and cannot be held responsible for related costs incurred by registrants other than the registration fee.

*Cancellation penalties may apply.

Fees: $965.00 ; SAE Members: $772.00 - $869.00

1.6 CEUs
You must complete all course contact hours and successfully pass the learning assessment to obtain CEUs.

Testimonial
"This course gave a great overview of GD&T principles, and pointed me in the right direction for further training."
Jay Johnson
Motorsports Design Engineer
Goodridge USA

To register, click Register button at the top of this page and submit the online form, or contact SAE Customer Service at 1-877-606-7323 (724/776-4970 outside the U.S. and Canada) or at CustomerService@sae.org.