Access Period: 30 Days
Duration: 16 Hours
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-1994, which was updated in 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.
Is this Web Seminar RePlay for You?
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.
This course satisfies a requirement in the Product Engineering Tools and Methods Certificate Program.
Have colleagues who need this course? See Special Offers to the right.
Click on the Requirements tab to make sure you are properly equipped to interact with this course.1.6 CEUs
"This course gave a great overview of GD&T principles, and pointed me in the right direction for further training."
Motorsports Design Engineer
By participating in this course, 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
- Why Use GD&T?
- Review of traditional dimensioning
- Benefits of GD&T
- Technical standards
- Basic dimensions
- How to read the feature control frame
- Rules and the Form Symbols
- Rule #1: Size controls form
- Rule #2: Assume RFS
- Surface straightness
- Bonus Tolerance
- GD&T applied to a feature of size
- Bonus and the MMC modifier
- Virtual conditon
- Gaging and inspection of GD&T
- Datum vs. datum feature
- The datum reference frame
- Primary, secondary, and tertiary datums
- Profile and Orientation
- General definition of profile
- Profile of a line
- Profile of a surface
- Use of datums with profile
- Position Tolerance I
- True position
- Position tolerance RFS
- Using MMC or LMC
- The "boundary" concept
- The pitch diameter rule
- Position Tolerance II
- Projected tolerance zone
- Inspecting parts for position
- Calculating tolerance values
- Composite position tolerance
- Symmetry and Coaxial Controls
- Circular runout
- Total runout
Instructor(s): John-Paul A. Belanger
John-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.
- 30 days of online single-user access (from date of purchase) to the eight session, approximately 16 hour, recorded presentation
- Course workbook (downloadable, .pdf's)
- Online learning assessment
- Instructor follow up to your content questions
- 1.6 CEUs* (with satisfactory assessment score)
SAE Web Seminar RePlays are audio/visual captures of live web seminars. The course sessions are unedited to include the results of interactions with the live participants and to expedite course availability. A learning assessment is available at the end of the course to reinforce learning and retention and gauge your understanding of the topic.
- Windows 7, 8 (Apple OSX and Unix/Linux are not supported but may work)
- Pentium 4 PC
- Minimum 512 MB RAM; recommended 1 GB RAM
- Internet Explorer 10-11, Mozilla Firefox 37 , Google Chrome 42 (Safari and Opera are not supported)
- Broadband-1Mbps minimum