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INDIA : +91 9810201142 (Dharmender Singh)

Fundamentals Of Geometric Dimensioning And Tolerancing GD and T

COURSE CODE: EG1505
COURSE NAME: FUNDAMENTALS OF GEOMETRIC DIMENSIONING AND TOLERANCING GD and T
  • Geometric dimensioning and tolerancing (GD and T) is a method showing specific tolerances on drawings symbolically.
  • GD and T is a tool that effectively communicates the design intent to drawings meant for manufacturing and inspection in industries.
  • The course is based on technical standard ASME Y14.5M-2009.
  • This course introduces participants to the GD and T system, providing a working knowledge of the correct interpretation and application of each symbol, general rules, the datum system, and 'bonus' tolerance and highlighting some of the changes in the updated Y14.5 standard.
  • The training is reinforced with many case studies, industrial practical problems and practice exercises.
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    Introduction to GD and T

  • Why use GD and T
  • Fundamental dimensioning rules
  • Coordinate tolerancing and its shortcomings
  • Geometric tolerancing and its benefits
  • Benefits of GD and T
  • Technical standards
  • GD and T Terms, Symbols, Rules, and Concepts

  • Dimension Types
  • GD and T Symbology FCF, Modifiers and Symbols
  • Feature and Feature of size
  • Material conditions MMC, LMC, RFS
  • Variation Types on a Feature
  • Difference between Regular and Irregular Features of Size
  • Virtual Condition
  • Statistical Tolerancing
  • Continuous Feature symbol for multiple features of sizes
  • Datums

  • Importance of Datums
  • Restraining degrees of freedom with datums
  • Datum Application to Features and Features of Size.
  • Use of Datum targets
  • Datum Shift - Material Conditions applied to Datums
  • Form Tolerances

  • Form Tolerances Flatness, Straightness, Circularity, Cylindricity
  • Form tolerance applications
  • Inspecting flatness
  • Orientation Tolerances

  • Orientation Tolerances Angularity, Parallelism, Perpendicularity
  • Implied right angles, Degrees basic angle, tolerance linear units
  • Application of Orientation tolerances
  • Inspecting Orientation tolerances
  • Profile Tolerance

  • Profile Tolerance and its applications
  • Inspecting Profile tolerances
  • Composite Profile
  • Profile for Co-planar surfaces
  • Location Tolerances

  • Location Tolerances Position, Symmetry, Concentricity
  • Application of Position Tolerance Feature Control Frame
  • Size and Shape of Tolerance Zone
  • Position Tolerance measurement methods - Functional Gage, CMM data
  • Zero Tolerancing at MMC
  • Composite Position Tolerance

  • Basic concept and characteristics
  • Various Interpretations of composite position tolerance
  • Runout Tolerances

  • Rivets and riveted joints
  • Basic concepts and characteristics of Circular and Total Runout
    • Product Design Engineers
    • Manufacturing Engineers
    • CAD Designers,
    • Quality Inspectors
    • Machine Operators
    • Students ITI, Diploma, B.E., B. Tech., M.E., M.Tech.
    • Knowledge of Engineering Drawing (Course Code : EG1502)
    • Knowledge of Machine Drawing (Course Code : EG1503)