Principles of GD&T: Interpreting Commonly Used Controls
Course Type:
In-Person
Course Number:
IPPD888Credits:
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This course is a 2-day immersion into the rules, symbols, and other concepts of the American Standard for Geometric Dimensioning & Tolerancing: ASME Y14.5-2018.
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Welcome Back!
The ability to interact with ASME instructors who bring real world experience, examples, and best practices to life in our learning experiences is a major reason learners choose face to face training. Networking with peers is also a valuable part of the time spent together during a course. We are excited to start offering these important courses again in person.
Schedule: This course commences at 8:30 AM and ends at 5:30 PM local time, each day, with breaks scheduled throughout.
Venue: This course will be held at the Hilton College Station and Conference Center in College Station, TX, in conjunction with the Verification, Validation, and Uncertainty Quantification Symposium. Please follow this link for hotel reservations and to learn more about the Symposium.
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This course is a two-day immersion into the rules, symbols, and other concepts of the American Standard for Geometric Dimensioning & Tolerancing: ASME Y14.5-2018. Key fundamental rules, all control symbols, datums and datum schemes, basic dimensions, virtual conditions, modifiers, and the infamous Rule #1 are all covered in detail.
This course includes a variety of examples and short exercises that will help you progressively learn more about this unique design language. Participants work through various exercises and have the opportunity to review engineering drawings during the course.
By participating in this course, you will learn how to successfully:
- Recognize all GD&T control symbols and describe the tolerance zones defined by commonly used control symbols.
- Determine when to use Rule #1 to control form and when other controls are appropriate.
- Recognize correct syntax for commonly used feature control frames.
- Apply and interpret the Maximum Material Condition (MMC), Least Material Condition (LMC), and Free State Only modifiers correctly
- Assess various datums and datum schemes against product functionality and manufacturing and inspection performance.
Who should attend?
Anyone needing to interpret engineering drawings that contain GD&T. Students should have some familiarity with engineering drawings, but do not need any previous GD&T experience. Many participants looking for an advanced class discover that their GD&T skills are challenged by our fast pace and in-depth coverage of GD&T concepts. Come prepared to work hard and learn a lot, even if it's not your first time through a GD&T class!
Course Materials (included in purchase of course)
- Digital course notes via ASME’s Learning Hub
- GD&T Fundamentals workbook and reference hand-outs
Course Requirements
Participants must bring a laptop to class
A Certificate of Completion will be issued to registrants who successfully complete the course.
Module 1 – Introduction
- GD&T defined
- Four geometric attributes
- Symbols exercise
- Units and tolerances
- Four functions of basic dimensions
- SFOL vs Y14.5 symbol categories
Module 2 – Size and Envelopes
- Features of size defined
- Features of size vs. surfaces
- Actual local size and actual mating envelope
- Rule #1: The Envelope Principle
- MMC & LMC
Module 3 – Form of a Surface
- Flatness
- Straightness
- Cylindricity
- Circularity
- Profile of a surface as a form control
Module 4 – Form of a Feature of Size
- Straightness vs. Rule #1
- Flatness vs. Rule #1
Module 5 – Datums
- Terminology: Datums, datum features
- How to select a datum
- How to simulate a datum
- Datum targets
- Fixtures: Datum simulators
Module 6 – Orientation of a Surface
- Perpendicularity/Angularity/Parallelism
Module 7 – Profile of a Surface as Orientation Control
- With datum references
- With datum references and basic distances/sizes
- Controlling SFOL
Module 8 – Orientation of a Feature Size
- Definition
- To M or not to M
- Round, square, internal, and external examples
- Inspection
Module 9 – Location
- Position
- Runout
John Stolter
President, Stolter LLC
John brings to each class significant manufacturing engineering and design engineering experience, coupled with a unique ability to explain the role dimensioning and tolerancing plays in the product development process.
More Information
In-Person
Conducted in a physical classroom or lab with an instructor and peers.Note: ASME in-person activities will follow the state and local laws, regulations and guidelines regarding COVID-19 applicable to the location of the event. Learn more here
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