Advanced GD&T

Advanced GD&T 2018-10-04T13:08:01+00:00

Course Objective:

1. Translating Designer’s thought into proper GD&T drawings, including tolerance allocations.
2. You will learn the advanced concepts in GD&T, including :

• Tolerancing Mating Parts – learn-while-during training session
• Direct Versus Indirect Datum Structures
• Allowed versus Actual Deviation from True Position – Bonus Tolerancing and Virtual Condition Boundaries
• Profile, Flexible Parts and Datum Targets
• Tolerancing Complex Assemblies with Multi-Level Functional Controls and Varying Datum Structures
• Measuring and gauging GD&T, first article inspection, applying CMM to GD&T, and tabulation of results.

Course Outline:

Recap of Essential Concepts in GD&T
Datum concepts and applications
Form control concepts and applications
Orientation control concepts and applications
Location control concepts and applications
Runout control concepts and applications
Profile control concepts and applications

The Major Principles in Geometric Dimensioning and Tolerancing
Conventional Dimensioning Versus Profile and Position Tolerancing
Converting to Positional Tolerancing to Avoid Ambiguities
Selecting Datum Features
Tolerancing Datum Features
Calculating Geometric Tolerances
Worst Case Least Material Conditions
Virtual and Resultant Conditions
Basic Dimensions and Where Their Tolerances Come From

Tolerancing Mating Parts in a Rotating Assembly – learn-while-doing training session
Read and Understand a Crank Shaft and Coupling Assembly
Logic behind the Functional Worst Case Boundaries
Calculating Actual Departure from True Position
How to Read a Feature Control Frame to Determine Part Function
Protecting Virtual Condition Boundaries
How Additional Positional Tolerances Derived from Feature Size Limits Relate to Worst Mating Condition Boundaries

Profile, Flexible Parts and Datum Targets
How to Choose Datums and Tolerancing Schemes for complex Sheet Metal and Plastic Parts
Dealing with Parts with Multiple Curvatures and Angles
Free State and Restrained versus Free State Inspection Requirements
Varying Tolerances from Segment to Segment on Surfaces
Tolerancing Curved Mating Features for Fit
Measuring Parts as They Function
Simultaneous versus Separate Gauging Requirements

Apply Criteria for Optimal Datum Feature Selection to the Assembly
Form Controls for Assembly and Inspection Repeatability
Orientation Control for Datum Feature Bonus Tolerance and Pattern Shift

Direct Versus Indirect Datum Structures
Datum Structures and Their Effect on Tolerance
Direct and Indirect Functional Relationships
Tolerancing for Producibility and Functionality
The Goal of Datums in Inspection and Assembly
How to Choose Between Datum Structures
How to Calculate the Feasibility of Various Datum Schemes
Weighing the Suitability of One Control against Another
How to Spot Similarities in Dissimilar Part Configurations
How to Lower Cost without Compromising Function

Allowed versus Actual Deviation from True Position – Bonus Tolerancing and Virtual Condition Boundaries
Logic behind the Maximum Material Condition concept
Pattern Shift with Simultaneous Requirements
Fixturing and Stabilizing Parts in Presses
Compound Pattern Datums
Casting and Draft Angles
Sheet Metal and Complex Flexible Parts
Plastic Parts

Tolerancing Complex Assemblies with Multi-Level Functional Controls and Varying Datum Structures
Detail Analysis of Optimal use of Datums and Functional Controls that escalates in Sophiscation.
Determining the Most Functional and Producible Approach to Form, Orientation and Location Control.
Calculating and Distribution of Tolerances in Assembly
Multi-Level, Two Single-segment Controls for Cost Reduction
Changing of Datum Structures for Direct Tolerancing Relationships to Produce Greatest Yield.

Participants will learn final details in advanced GD&T. Case studies and hands-on exercises using specially selected drawings allow participants to use and apply the information learnt in the course. Participants may also bring company drawings for interpretation during live case studies.

This course is designed for designed for engineers who need to qualify parts with GD&T specifications. You will learn effective ways to measure and gauge geometric tolerances. You will also learn to select the most appropriate measurement techniques for particular GD&T specifications, whether it is prototype or production, batch production or mass production. Enhance understanding by using videos, with step by step explanations, using open setup, gauges or specialized equipment. Course Pre-requisites Participants must possess basic knowledge of GD&T and Tolerance Analysis concepts

COURSE DURATION – 3-Day (9:00am – 5:00pm)

S$1,200 (Members) S$1,345 (Non-Members) – GST is not Applicable
Course fees include training materials, certificate & light refreshments
SDF Funding: $42.00 (for all companies)
SkillsFuture Credit of S$500 is Applicable for Singaporean (for self-paying participants only)
Registration Fee of $16 per participant will be added to all Executive Courses. (GST not applicable)

TRAINING VENUE: SQI, No1 Sophia Road #05-06/07, Peace Centre, Singapore 228149

Contact: Jonathan Koh
DID: 6467 4225
Fax: 6467 4226

Please fax or email your completed form to:
Fax: (65) 6467 4226