Advanced Concepts of GD&T (2009) 2-day ET3016
This course teaches the advanced concepts of GD&T as prescribed in the ASME Y14.5-2009 Standard and offers an in-depth explanation of advanced GD&T topics not covered in our Fundamentals training. Complex topics include expanded use of composite position and profile tolerances, customized datum reference frames, the translation modifier, and applying GD&T to non-rigid parts. Learning is enforced interactive engagement between the instructor and the students, followed with numerous exercises at the end of each chapter.
Each attendee receives a robust collection of learning resources including:- Advanced Concepts of GD&T coursebook (ASME Y14.5-2009)
- A GD&T Ultimate Pocket Guide (2009)
- 90-day access to Fundamentals of GD&T 2009 web training course
Students who attend courses like this one walk away with more than knowledge. They gain on-the-job skills because the learning materials are performance-based and taught by experienced instructors who have applied GD&T in industry.
Learning Objectives
By attending this class, you will be able to:
- Explain the concept of functional dimensioning
- Describe advanced applications of form controls
- Review and describe the uses, advantages, misconceptions, and common application errors of the datum system
- Describe six additional datum feature types
- Describe four complex datum feature types
- Describe how to use the translation modifier and a customized datum reference frame
- Review datum targets and understand expanded datum target concepts
- Explain the difference between a rigid and a nonrigid (flexible) part
- Describe the requirements for tolerancing parts measured in the restrained condition
- Describe how datum targets and datum feature shift are used on restrained nonrigid parts
- Describe the effects of simultaneous and separate requirements and how they apply to position tolerances
- Explain multiple single-segment position tolerancing
- Explain composite position tolerancing
- Explain when to use profile tolerances
- Describe the effects of simultaneous vs. separate requirements with profile
- Explain multiple single-segment profile tolerancing
- Explain composite profile tolerancing
Who Should Attend
This course is valuable for individuals who create or interpret engineering drawings, product and gage designers; process, product, and manufacturing engineers; supplier quality engineers/professionals; CMM operators; buyers/purchasers; checkers; inspectors; technicians; and sales engineers/professionals.
Prerequisites
Please be aware that this is not an introductory course. In order to understand the course content, students should have completed the Fundamentals of GD&T course or equivalent.
You must complete all course contact hours and successfully pass the learning assessment to obtain CEUs.
Functional Dimensioning
- Understand the functional dimensioning process and its
Advanced Application of Form Controls
- Flatness refining notes
- Flatness and straightness per unit basis
- The CONTINUOUS FEATURE note
- The AVG modifier with circularity
- Applying cylindricity to a portion of a feature
Overview of the Datum System
- When to use the datum system
- Advantages and common misconceptions of the datum system
- Common errors in datum application
Additional Datum Feature Types
- Six additional datum feature types
- Degrees of freedom each datum feature type constrains
- Default conditions and overriding defaults for threaded features used as datum features
- Features of gears or splines used as a datum feature
- Temporary and permanent datum features
Complex Datum Feature Types
- Four complex datum feature types and the number of degrees of freedom each datum feature type constrains
- Multiple datum features and patterns used with complex datum features
Translation Modifier
- Datum precedence as it relates to degrees of freedom (DOF)
- Requirements for using the translation modifier
Customized Datum Reference Frame (CDRF) and Datum Targets
- Overriding the DOF constrained by a datum feature using CDRF
- Requirements for using a customized datum reference frame (CDRF)
Datum Target Overview and Expanded Concepts
- How datum target support repeatable measurements
- Datum target selection and how it affects function, downstream users and tooling costs
- Datum targets used to support nonrigid and countered parts
- Moveable datum target uses and requirements
Rigid and Non-Rigid Parts Definitions
- Free state condition
- Restrained condition
- Rigid part
- Non-rigid part and non-rigid part features
Datum Target Usage on Restrained Parts
- Multiple datum targets used on a nonrigid part
- Datum feature shift on a restrained part
Simultaneous and Separate Requirements
- Recognize where simultaneous requirements apply
- Effects of a simultaneous requirements vs separate requirements
- Simultaneous requirements with datum references at RMB and LMB for profile and position tolerances
- Tolerance of position as separate requirements
- Simultaneous requirement exception
Multiple Single-Segment Position Tolerancing
- When to use it, rules, and advantages
- Multiple single-segment position tolerances vs. composite position tolerances
Composite Position Tolerancing
- “FRTZF” and “PLTZF”
- When to use it, rules, and advantages
Profile Tolerances
- Misconceptions about profile tolerances
- Five profile applications
- Profile applied to complex features
- Affects of a profile tolerance
- Self-datum reference
- Applied to coplanar and offset surfaces
- Non-uniform profile tolerance
- Combining profile with other geometric tolerances
- Profile with MMB datum feature references
Simultaneous and Separate Requirements with Profile
- Simultaneous requirement applied to profile
- Profile tolerances with separate requirements
Multiple Single-Segment Profile Tolerancing
- When to use it, rules, and advantages
Composite Profile Tolerancing
- When to use it, rules, and advantages
All SAE GD&T instructors are industry professionals with years of experience applying GD&T on the job. Our trainers have:
- Expert knowledge of the Y14.5 Standard
- ASME certified and/or ASQ certified
- Current or recent industrial experience using GD&T
- At least five years experience using GD&T
- Experience and skill using ETI teaching materials
Our instructors use identical training materials and lesson plans, so you receive the same class presentation from every trainer.
