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If you have a basic understanding of mechanical drawings, we can teach you the terms, rules, symbols, and concepts of GD&T as prescribed in the ASME Y14.5M-1994 Standard.


Who should attend:

All those who use GD&T to design, produce and inspect parts: mechanical engineers, designers, managers, production planners, inspectors, machinists, supplier quality personnel, etc.

Course Highlights

The workshop is based on a series of goals and objectives. It includes numerous practice problems and in-depth coverage of dimensioning and tolerancing. You will learn the benefits of GD&T and leave with the ability to interpret GD&T on drawings.

Course description: (2 days)

You'll discover the major pitfalls of traditional coordinate tolerancing - and how they may be overcome by using Geometric Tolerancing. Then, starting with your basic blueprint knowledge, you'll learn the symbols, terminology and rules of Geometric Tolerancing as prescribed in the standard (ASME Y14.5M-1994). Also you will learn the relationship between tolerances and how to most economically apply the concepts.
  • Engineering drawings
  • GD&T/coordinate dimensioning comparison
  • Eight key GD&T terms
  • GD&T modifiers and symbols
  • Rule #1 and Rule #2
  • Basic dimensions, virtual condition, bonus tolerance
  • Six Degrees of Freedom
  • Datums
  • Datum Features
  • Simulators
  • Symbol Placement
  • Datum Precedence
  • Datum Targets
  • Datum Feauture at Virtual Condition
  • Perpendicularity
  • Parallelism
  • Angularity
  • Tangent Plane
Runout Controls
  • Circular runout
  • Total runout
Tolerance of Locations Controls
  • Definitions, conventions, advantages, basic theories MMC, LMC and RFC tolerance of position applications
  • Projected tolerance zone
  • Non circular features
  • Cartoon gages for tolerance of position (MMC) applications Tolerance of position special applications
  • Calculating distances on parts dimensioned with tolerance of position
  • Fixed and floating fastener formulas
  • Concentricity
  • Symmetry
  • Spherical Features
  • Flatness
  • Straightness
  • Circularity (Roundness)
  • Cylindricity
Profile Controls
  • Profile tolerancing
  • Profile of a surface
  • Profile of a line
  • Composite Profile

X-QNA is commited with technical excellence and a passion to serve in the fields of engineering design.