Advanced GD&T Course Outline
(using
the new textbook Geometric
Dimensioning and Tolerancing-Applications, Analysis & Measurement [per ASME
Y14.5-2009] and its accompanying
workbook/answerbook by James
D. Meadows)
1. Introductions/Expectations
2. Refresher of GD&T Principles from ASME Y14.5: Symbols, Rules, Datum
Feature Symbols, Additional Symbols to Replace Notes, Material Condition
Symbols, Boundaries, Simple Mating Parts, Converting from Plus and Minus
Tolerancing to Position Tolerancing and Profile Tolerancing.
3. Practical Absolute Gage Tolerancing from ASME Y14.43.
4. Methods of Position Tolerance Verification (Boundary Method vs. Tolerance
Zone Method).
5. Dimensioning and Tolerancing Rotating Assemblies with Hole Patterns.
6. Fixed Fastener Assembly Tolerancing, Threaded Features, Tolerance
Distribution and Projected Tolerance Zones.
7. Tolerancing Mating Parts using Centerplane Datums.
8. Positional Boundaries on Elongated Holes, Pipes, Hoses, Tubes and D-Shaped
Holes, All-Around and All-Over Profile Tolerancing.
9. Profile, Dynamic Profile, Compound Datums, Compound Pattern Datums, Simultaneous and Separate
Requirements.
10. Flexible Parts, Sheet Metal Panels, Elongated Holes, Positional Boundaries
and Compound Datums.
11. Secondary and Tertiary Datum Features of Size, Datum Feature Shift, Displacement,
Angular Orientation Datums and Simultaneous Requirements.
12. Oddly Configured Holes as Datum Features and the Design, Dimensioning and
Tolerancing of their Gages and Fixtures.
13. Composite and Two-Single Segment Position and Profile Tolerancing.
14. Converting from Plus and Minus Tolerancing to Composite Positional
Tolerancing.
15. Combining Composite Positional Tolerancing with a Simultaneous Requirement.
16. Using Two-Single Segment Position Tolerancing on Complex Floating Fastener
Assemblies with Radial Hole Patterns.
17. Weldments that use Composite Tolerancing Inefficiently and Datum Selection
Poorly and How to Correct Them.
18. Converting from Plus and Minus Tolerancing to Composite and Two-Single
Segment Profile.
19. PC Board Tolerancing and Analysis.
20. Analyzing Collected Variables Data on Oddly Configured Parts with Profile
Tolerances.
21. Tolerancing Oddly-Configured Mating Parts.
22. Tolerance Stack-Up Analysis.
23. Statistical Tolerancing.
24. New concepts in Y14.5-2018 are discussed (and
compared to the 2009 and 1994 Standard), such as:
Dynamic Profile, Vector
Symbols, To-From Symbols, NONUNIFORM Profile, New Symbology and Rule Changes,
Moveable Datum Target Symbol, Datum Translation Symbol, Specifying Degrees of
Freedom Symbology, Calculating the Correct Material Condition Boundaries
(Maximum Material Boundary, Least Material Boundary and Regardless of Material
Boundary), Datum Feature BASIC Symbology, Specifying the Desired Material
Boundary, Datum Feature Patterns Referenced at MMB, LMB and RMB, Oddly
Configured Datum Features, Datum Feature Simulators (Theoretical and Physical),
Irregular Datum Features of Size, Repetitive Patterns, Two and Three Level Composite Position and Profile Controls.
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