G4 – Advance GD&T + Tolerance Stack-Up

8024

Category:
  1. Basic + Advance Concept

*Each section involves practice of calculation and application of geometric tolerances.

**Brief comparison of ASME 2009 Y14.5 and ISO will be done.

  • Course fee Includes 6 months of membership and Telephonic Personal consultation for any GD&T and Tolerance Stack-up related issue.
  • For Company – Drawing review and Expert Suggestions, Design and detail engineering Mentorship

Engineering Drawing and GD&T

  • Engineering Drawings
  • Introduction to Dimensioning
  • Dimensioning Rules
  • Co-Ordinate Dimensioning System
  • Geometric Dimensioning and Tolerancing system Myths in GD&T

Definitions and Symbols

Rules and Different concepts of GD&T

  • Limit of size
  • Rule#1
  • Rule#2
  • Virtual condition
  • Resultant Condition
  • Effect of RFS
  •  Effect of MMC
  • Effect of LMC
  • Bonus Tolerance

Tolerance selection

From Tolerance

  • How to select Form Tolerance
  • Straightness tolerance
  • Flatness tolerance
  • Circularity
  • Cylindricity tolerance
  • Application over a limited length area

Datum selection

  • How to select Datum for Feature of Control
  • Datum feature
  • Datum identification
  • Temporary Datum and permanent Datum
  • Datum reference Frames
  • Datum simulator
  • Planar datum
  • Datum feature of RMB
  • Maximum Material boundary
  • Least material boundary
  •  Datum shift
  • Translation modifier
  • Effects of shuffling datum in a feature control frame
  • Datum targets
  • Single axis of two coaxial feature pr single datum plan
  • Partial surface of Datum
  •  Rotational constrain due to axis
  • Simultaneous requirement
  • Restrained condition
  •  Identification
  • Customized reference frame

Positional Tolerance

  • How to select Location Tolerance
  • Tolerance of location-positional tolerance
  • Positional tolerance-RFS
  • Positional tolerance -MMC
  • Positional tolerance-LMC
  • Multiple segment and composite tolerance
  • Composite tolerance
  • Multiple single segment tolerance
  • Application of projected tolerance zone
  • Application of positional tolerance to counter bores different positional tolerance at end faces to non-circular features
  • Coaxial control of pattern feature of size
  • Simultaneous requirement
  • Coaxial feature of size
  • Positional coaxial control
  • Concentricity
  • Symmetrical relationship
  • Controlling symmetrical relationship by position
  • Symmetry tolerance

Tolerance of profile

  • How to select Profile tolerance
  • Profile tolerance
  • Uniform profile tolerance zone
  • Bilateral tolerance
  • Unilateral and unequal bilateral
  •  All around and all over symbols
  • Different tolerance for different segment of cross section
  • Non uniform tolerance zone
  • Composite Tolerance application
  • Composite tolerance application to single features
  • Composite tolerance application for feature in pattern
  • No datum is in lower segment of the composite frame
  • Primary datum A is repeated in lower segment of the composite frame
  • Primary and secondary Datum are repeated in lower segment of the composite frame
  • Individual feature control within feature in the pattern
  • Application of profile tolerance

Orientation tolerance

  • How to select Profile tolerance
  • Orientation tolerances
  • Angularity
  • Parallelism
  • Perpendicularity
  • Tolerance zone for orientation tolerance
  • Orientation tolerance @MMC modifier
  • Zero orientation Tolerances @MMC modifier
  • Projected tolerance
  • Projected tolerance

Runout tolerance

  • How to select Runout tolerance
  • Tolerance of Runout
  • Datum section for Runout
  • Circular runout
  • Total runout
  • Multiple Datum to control Runout control of datum surface
  • Flat surface on datum
  • Application of circular runout on a curved surface

Tolerance

  • What, Why
  • Limits- Fits and Tolerances
  • Precision and Accuracy
  • Various Fits

Tolerance Stack-up

  • Myths in Tolerance Stack-up
  • What is tolerance Stack-up Analysis?
  • Why to do tolerance Stack-up Analysis?
  • Benefits tolerance Stack-up Analysis
  • What are the driving factors in Stack-up analysis
  • Assumptions and ways of doing stack-up
  • Steps to be followed
  • Rules preparing Loop diagram
  • Converting all toleracing system to equal bilateral system

Examples Practice (Part Level and Assembly Level)

Fixed and Floating Formulas and Concept

Converting GD&T to Normal ± tolerance to use in stack-up analysis

  • Few terminologies (VC, RC, OB and IB, Datum shift)
  • Form Tolerances – To include in Tolerance stack-up or not
  • Orientation Tolerances on surface and on feature of size
  • Profile (Composite tolerance effect as well)
  • Positional Tolerance (Composite tolerance, when and how to include segments)
  • Datum shift assumption in Tolerance Stack-up
  • Runout Consideration
  • Symmetry and Concentricity

Radial Tolerance Stack-up

Part With Dimension and tolerance at an angle

Statistical Tolerancing (RSS and MRSS)

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