Focus Areas

History, Introduction and understanding the need for GD & T.
Basics of ISO-GPS system of standards (ISO 8015)
Dimensional tolerances (ISO 14405) - Problem of unambiguous sizes -
a. Feature of size with linear sizes-terms acc. to ISO 14405-1
b. Linear distances and radii (non-sizes) acc. to ISO 14405-2
c. Feature of size with angular size-terms acc. to ISO 14405-3
ISO 1101:2017 Geometrical product specifications (GPS) - Geometrical tolerancing - Tolerances of form, orientation,
location and run-out
Definition of datums’ and DOF restrained by primary, secondary and tertiary datums
Selection of datums based on design / manufacturing / Inspection requirements
Wooden/plastic prototypes: Part/assy prototypes used for effective training
Form and orientation tolerances and applications
Location, runout and profile tolerances and applications
Tolerance concepts, MMC / LMC / RFS and their applications
Calculation of bonus tolerance per MMC / LMC
Inspection methods and Animations for form tolerances and important concepts
Exercises throughout the work shop, over 25 nos.
Demonstration of GD & T measurements using CMM

Background

Key Takeaways

After undergoing the GD&T workshop, the participants would be able to:
1. Understand the concepts of GD&T features and correctly interpret GD&T symbols in Engineering Drawings
2. Learn about using tolerances at RFS, MMC and LMC conditions and Calculate Bonus tolerance
3. Gain a practical insight into inspection of GD&T features using conventional methods, Co-ordinate Measuring Machine and
functional gauges
4. Implement GD&T controls for a new project with proper selection of datum features

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