Instructor Videos – GD&T Specialty Concepts

Intro- GD&T Specialty Units Course Overview 1 Topic

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Overview

Unit 7: Virtual Condition and Material Boundary Modifiers 18 Topics

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Unit 7 Part 1 Overview

Virtual Condition – Internal Feature

Virtual Condition – External Feature

Virtual Condition – Multiple Controls

Zero Tolerancing at MMC

Boundaries: MMB vs Virtual vs Related AME

Position Verification: Boundary Method

Axis Method vs Surface Method

Unit 7 Part 2 Overview

Material Boundary Modifiers

RMB vs MMB Modifiers

Calculating MMB

Simultaneous Requirement

Rotational Constraint – RMB vs MMB

Translation Modifier

Inspection with MMB Modifier: Part 1

Inspection with MMB Modifier: Part 2

Unit 7 Part 2 – Part 1 and 2 Recap

Unit 8: Datum Reference Frame II -Datum Targets and Irregular Surfaces 13 Topics

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Unit 8 Overview

Inclined & Contoured Datum Features

Datum Targets Intro

Datum Targets: Turbine Blade

Datum Targets: Cylindrical Feature

Datum Targets: Plastic Part

Datum Targets: Flexible Car Hood

Restrained Condition vs Free State

Casting to Machining: Option 1

Casting to Machining: Option 2

Moveable Datum Target & Vee Locator

Spherical Datum Target

Unit 8 Recap

Unit 9: The Datum Reference Frame III Advanced Concepts 16 Topics

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Unit 9 Overview

A-B Common Datum Features

Coaxial Holes as a Datum Feature

Irregular Feature of Size

Two Holes vs Hole & Slot Datum Features

Pattern of Holes as a Datum Feature

Datum Center Planes

Multiple Datum Reference Frames

Multi-DRF: Global vs Local

Multi-DRF: Done Wrong

Datum Features Individually

Inseparable Assemblies

Assembly Level Tolerancing

Customized DRF

Exercise Solutions

Unit 9 Recap

Unit 10: Form Tolerances 10 Topics

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Unit 10 Overview

Flatness

Straightness on a Surface

Straightness – Line Elements on a Pin

Straightness – Median Line on a Pin

Flatness – Median plane

Unit 11: Profile Tolerancing 21 Topics

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Unit 11 Overview

Profile of a Surface: Bilateral

Unequal/Unilateral Modifier

Profile of a Line

Profile Application: Cam Wheel

Profile Inspection – Reporting Introduction

Profile Inspection- Reporting Application

Profile Application: Armor Plate

Profile Application: Fuel Line Bracket

Profile Application: Fuel Line Clip

Profile Application: Hat Bracket

Composite Profile: Curved Surface

Composite Profile: Feature of Size

Composite Profile: Coplanarity

Tangent Plane Modifier

Non-Uniform Tolerance Zone

Dynamic Profile Modifier: Form only

Dynamic Profile Modifier: Application

Dynamic Profile Modifier: Controlled Radius

Dynamic Profile Modifier: Per Unit Area

Unit 11 Recap

Unit 12: Position Tolerances 18 Topics

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Unit 12 Overview

Position Tolerance – Introduction

Floating Fastener Formula

Fixed Fastener Formula

Projected Tolerance Zone

Screw Thread Rule & Gear/Spine Rule

Rectangular Tolerance Zone (Two Directions)

Two Parallel Planes Zone (Slots)

Spherical Zone & Conical Zone

Boundary (Irregular Feature of Size)

Composite Position: One Datum

Composite Position: Multiple Datums

Composite Position: Inspection

Composite Position: Application

Composite Position: Coaxial Holes

Continuous Feature

Two Segments for Rotational Control

Unit 12 Recap

Unit 13: Coaxial Controls – Runout, Position, and Profile 9 Topics

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Unit 13 Overview

Position Tolerance

Position vs Runout

Circular Runout vs Total Runout

Position vs Runout: Applications

Concentricity & Symmetry Removal from Y14.5-2018

Profile Tolerance

Profile Application

Unit 13 Recap

Appendix A: Updates from Y14.5-2009 12 Topics

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Appendix A Overview

Paragraph Restructuring and New/Revised Figures

Concept Removal

Term Changes

Restrained Condition Updates

Runout Updates

Continuous Feature

Unstable “Rocker” Datum

New Symbols: “From-To” & Dynamic Profile

Dynamic Profile Application

Dynamic Profile & Controlled Radius

Appendix A Recap

Appendix B: ASME Y14.5 vs. ISO-GPS Standards 15 Topics

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Appendix B Overview

Standard Structuring

Term Differences

Envelope vs Independency Default

The Similarities First

Definition of a Feature

ISO Profile Modifiers CZ & UF

Profile Unequal Circle U vs UZ

Simultaneous Requirement vs Independency

ASME vs ISO Defaults Summary

Combined Zone & Common Datum Part 1

Combined Zone & Common Datum Part 2

Examples of ASME Converted to ISO

Other Notable Differences

Appendix B Recap

Instructor Videos – GD&T Specialty Concepts

Course Content

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