Access Period: 30 days
Duration: 1.5 Hours
While the basics of position are covered in a standard Geometric Dimensioning & Tolerancing (GD&T) course, and sometimes a lone example of composite position is given, those discussions often overlook the variations allowed that enable more accurate control based on part function. This advanced web seminar will clarify the proper use of “double-decker” position controls in GD&T. There are two distinct types: composite position (one symbol) and two single-segment position controls (two symbols). These are commonly used to locate patterns of features (bolt circles, etc.), but they are rarely taught in any depth. In this course, participants will learn the difference in showing one vs. two position symbols and the importance of the datum references in understanding each meaning, per the ASME Y14.5-2009 standard.
Many samples will be shown of the proper tolerancing of patterns of holes and pins that use each method. Examples and exercises will be provided to allow participants to practice several calculations. Learning these advanced techniques will permit better communication of part and assembly requirements between designers and manufacturers.
Is this Web Seminar RePlay for You?
This advanced-level course is intended for designers, product engineers, manufacturing engineers, manufacturing personnel, and quality/gaging inspectors with a basic knowledge of GD&T concepts. It is a companion to the Advanced GD&T Competencies: Profile of a Surface and Datum Usage webi seminars.
For those new to GD&T, the Fundamentals of Geometric Dimensioning & Tolerancing Web Seminar is a recommended prerequisite.
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.0.15 CEUs
"Take your understanding of GD&T to another level with this course."
Paragon Space Development Corp.
Paragon Space Development Corp. Captured from the most recent offering of the Advanced GD&T Competencies: Composite Positioning available for release.
By participating in this course, you will be able to:
- Explain composite positioning tolerancing
- Explain two single-segment tolerancing
- Apply the appropriate callout based on functional requirements
- Describe gages for each and calculate gage sizes
- Brief review of position and bonus tolerance
- Explanation of composite tolerancing
- The need to control orientation vs. location
- Adding secondary and tertiary datums to the lower tolerance
- Two single-segment position tolerancing
- Functional gaging and CMM gaging perspectives
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.
- Thirty days of online single-user access (from date of purchase) to the approximately one and one half hour recorded presentation
- Course workbook (downloadable, .pdf's)
- Online learning assessment
- Instructor follow up to your content questions
- .15 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 8-11, Mozilla Firefox 37+, Google Chrome 42+ (Safari and Opera are not supported)
- Flash® Player 13+
- Broadband-1Mbps minimum