ADVANCED GEOMETRIC DIMENSIONING & TOLERANCING
Translating Designer's thought into proper GD&T drawings, including tolerance allocations.
Curriculum
- 7 Sections
- 51 Lessons
- 21 Hours
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- RECAP OF ESSENTIAL CONCEPTS IN GD&T6
- THE MAJOR PRINCIPLES IN GEOMETRIC DIMENSIONING AND TOLERANCING8
- 3.1Conventional Dimensioning Versus Profile and Position Tolerancing
- 3.2Converting to Positional Tolerancing to Avoid Ambiguities
- 3.3Selecting Datum Features
- 3.4Tolerancing Datum Features
- 3.5Calculating Geometric Tolerances
- 3.6Worst Case Least Material Conditions
- 3.7Virtual and Resultant Conditions
- 3.8Basic Dimensions and Where Their Tolerances Come From
- TOLERANCING MATING PARTS IN A ROTATING ASSEMBLY-LEARN-WHILE-DOING TRAINING SESSION4
- DIRECT VERSUS INDIRECT DATUM STRUCTURES9
- 5.1Datum Structures and Their Effect on Tolerance
- 5.2Direct and Indirect Functional Relationships
- 5.3Tolerancing for Producibility and Functionality
- 5.4The Goal of Datums in Inspection and Assembly
- 5.5How to Choose Between Datum Structures
- 5.6How to Calculate the Feasibility of Various Datum Schemes
- 5.7Weighing the Suitability of One Control against Another
- 5.8How to Spot Similarities in Dissimilar Part Configurations
- 5.9How to Lower Cost without Compromising Function
- ALLOWED VERSUS ACTUAL DEVIATION FROM TRUE POSITION - BONUS TOLERANCING AND VIRTUAL CONDITION BOUNDARIES6
- 6.1Logic behind the Maximum Material Condition concept
- 6.2Logic behind the Functional Worst Case Boundaries
- 6.3Calculating Actual Departure from True Position
- 6.4How to Read a Feature Control Frame to Determine Part Function
- 6.5Protecting Virtual Condition Boundaries
- 6.6How Additional Positional Tolerances Derived from Feature Size Limits Relate to Worst Mating Condition Boundaries
- PROFILE, FLEXIBLE PARTS AND DATUM TARGETS13
- 7.1How to Choose Datums and Tolerancing Schemes for complex Sheet Metal and Plastic Parts
- 7.2Dealing with Parts with Multiple Curvatures and Angles
- 7.3Free State and Restrained versus Free State Inspection Requirements
- 7.4Varying Tolerances from Segment to Segment on Surfaces
- 7.5Tolerancing Curved Mating Features for Fit
- 7.6Measuring Parts as They Function
- 7.7Simultaneous versus Separate Gauging Requirements
- 7.8Pattern Shift with Simultaneous Requirements
- 7.9Fixturing and Stabilising Parts in Presses
- 7.10Compound Pattern Datums
- 7.11Casting and Draft Angles
- 7.12Sheet Metal and Complex Flexible Parts
- 7.13Plastic Parts
- TOLERANCING COMPLEX ASSEMBLIES WITH MULTI-LEVEL FUNCTIONAL CONTROLS AND VARYING DATUM STRUCTURES5
- 8.1Detail Analysis of Optimal use of Datums and Functional Controls that escalates in Sophiscation
- 8.2Determining the Most Functional and Producible Approach to Form, Orientation and Location Control
- 8.3Calculating and Distribution of Tolerances in Assembly
- 8.4Multi-Level, Two Single-segment Controls for Cost Reduction
- 8.5Changing of Datum Structures for Direct Tolerancing Relationships to Produce Greatest Yield
Multi-Level, Two Single-segment Controls for Cost Reduction
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