Geometric Dimensioning & Tolerancing - Level II

I.D. #

92048

Duration

3 Days

This is not an introductory course. This course is designed to give practitioners of GD&T a more thorough knowledge of the concepts of the system. Misunderstandings and areas of weakness in your knowledge base will be identified through the use of a proficiency examination. Based on the results of the exam, the class is modified to suit the needs of the participants. Class time is then devoted to clarifying and expanding on concepts and advancing your knowledge base. Emphasis is on thinking about parts in the manner that GD&T provides for you. As a result, attendees will gain a better understanding of the function of their manufactured parts and how it relates to these concepts.

You are encouraged to bring with you ASSEMBLY DRAWINGS AND SUPPORTING PIECE PART AND DETAIL DRAWINGS. Drawings will be used at the end of the class to help solidify the knowledge gained. At the end of class, groups will view and analyze drawings to determine proper datums, necessary relationships and correct methods of control. Use of submitted drawings will be dependent upon the instructor's determination of relevance and usefulness for discussion.

The following textbooks and study materials will be provided: Geo-Metrics III, Pocket Guide, ASME Y14.5M-1994 Dimensioning & Tolerancing standard, workbooks and answerbooks.

Learning Objectives

By attending this seminar, you will:

identify any areas of weakness or misunderstandings you may have in interpreting or applying the GD&T system
clarify and expand your knowledge base of GD&T
view and analyze actual drawings to apply what you've learned
receive valuable textbooks, standards, and reference materials that can be used for future day-to-day reference

Who Should Attend

If you apply or interpret GD&T and have had training in the subject, this course will give you a better understanding of the thought processes necessary to do your job. To receive maximum benefit from this course, you should...

Be committed to the use of GD&T and be aware of its value and benefits
Have an understanding of the fundamental principles of the system

Prerequisites

This is not an introductory course. Participants should have prior training (minimum of 16 hours of formal classroom training recommended) and experience in GD&T.

Seminar Content

DAY ONE

GD&T Exam
- Pinpoints attendees' needs
- Exam results overview
Review of Basics
- MMC, RFS, LMC
- Limits of size
- Datums
- General rules
- Virtual condition
Form Tolerances
- Straightness
- Relationship to size
- Virtual condition
- Evaluation & verification
Datums
- Size features as secondary & tertiary datums
- Understanding orientation datums
- Equalizing datums
- Manufacturing datums vs. functional datums
- Swapping datums
- Understanding datum shift
- Size datums; non-size datums
- Datum features
- Selection of datums
- Extended principles
Orientation Tolerances
- Perpendicularity; angularity; parallelism
- Datum relationship
- Relationship to size
- Virtual condition
- Functional gaging
- Evaluation & verification

DAY TWO

Profile Tolerances
- Co-planarity
- Composite profile
- Loss of tolerance zone
- Controlling & locating cones
- Profile as location control
- Profile of a surface; profile of a line
- General rules
- Datum relationship
- Evaluation & verification
Runout Tolerances
- Circular runout; total runout
- Datum relationship
- Comparison with position & concentricity
- Composite nature
- Virtual condition
- Evaluation & verification
Position Tolerances (Cylindrical Features)
- Hole and pin patterns
- Position tolerancing theory
- Mating parts--calculations; applications
- Use of MMC, RFS, LMC
- Projected tolerance zone
- Relationship to datums, datum precedence and methodology
- Selection of datums
- Datum/virtual condition rule
- Functional gaging and open set-up verification
- Inspecting with a coordinate measuring machine
- Paper gaging
Position Tolerancing (Non-Cylindrical Features)
- Symmetrical features
- Mating parts--calculations; applications
- Use of MMC, RFS, LMC
- Relationship to datums, datum precedence and methodology
- Selection of datums
- Datum/virtual condition rule
- Functional gaging and open set-up verification
- Inspecting with a coordinate measuring machine
Position Tolerancing Extended Principles
- Different size holes
- 3-part assemblies
- Reversible parts
- Resultant condition
- Datum shift & the "mother duck"
- Composite position tolerancing for single patterns
- Composite position tolerancing for holes in line
- Using dowels and holes for datums
- Separate requirements for patterns
- Paper gaging composite position tolerancing
- Hole patterns as datums
- Zero tolerance at MMC
- Composite position vs. two single segments

DAY THREE

Concentricity
- When and how to apply
- Comparison with runout and position tolerancing
- Evaluation & verification
Current Status of National and International Standards
- ASME Y14.5M
- ISO
Evaluations of Company Drawings
- Exercise on choosing datums
- Review of current use and interpretation of GD&T on company drawings
- Review of company drawings with regard to further use of GD&T where warranted

Instructor(s):

Barry W. Heathcotte

Barry W. Heathcotte is an individual consultant specializing in training and consulting services on the subject of Geometric Dimensioning and Tolerancing. He has more than 30 years experience in the subject matter and has been a lecturer at both public and in-plant seminars and training programs. Mr. Heathcotte has trained more than 15,000 people from well over 1,500 companies, the military, technical and trade schools, universities, and technical societies in the United States, Canada, Mexico, and Europe. He is a former designer, group supervisor and technical coordinator with the Babcock & Wilcox Company, where he worked on the breeder reactor and nuclear reactors for both commercial and military installations. Mr. Heathcotte has more than 40 years of industrial experience, is a Certified Manufacturing Engineer, a senior member of SME, and a member of ASME. He has been an active member of the ASME Y14.5 Committee on Dimensioning and Tolerancing since 1982 and is a nationally-recognized expert on its application and interpretation.

Testimonial

"Would highly recommend this course for anyone who wants to advance in this subject."
Nathan Weister
Eaton Corporation

Fees:

$1745

SAE Members*:

$1396 - $1571

* The appropriate SAE Member discount will be applied through the Registration process. Discounts vary according to level of membership: Elite Member 20%; Premium Member 15%; Classic Member 10%

CEU