GeoTol Inspection Techniques Program

This Program is available in multiple formats. For Program Details, click on one or all of the following:

Program Outline

Inspection techniques Outline – 16 hours

Drawing Interpretation

  • Fundamentals of Blueprint Reading
    • Alphabet of Lines
    • Dimensioning styles
    • View orientation/layout
    • Style of Specifying Tolerances (unilateral, plus/minus,etc)
  • Review of GD&T Symbols and Tolerances Zones for each characteristic
  • Surface Texture Symbols and Specifications
  • Thread Callouts (inch/metric)
  • Welding Callouts

Measuring and Gaging Tools / Applications

  • Measuring Tools vs. Gages
  • Surface Plates
  • Reading a micrometer (vernier scale)
  • Telescoping gage or inside micrometer
  • Radius or fillet gages
  • Screw pitch gage
  • Depth micrometer
  • Vernier height gage and its uses
  • Measuring Angles
    • Vernier Bevel protractor
    • Sine Bars and Applications
    • Sine Plates
  • Thickness/feeler gages
  • Small Hole gages
  • Ring and Plug gages
  • Snap gages
  • Dial Indicator style height and calipers, etc
  • Gage Blocks, usage, care, Wringing together
  • Gage Pins
  • Optical Flats
  • Optical Comparators

Additional Inspection Considerations

  • Uncertainty in Measurements
  • Calibration of Instruments
  • Instrument error
  • All inspection done at 68 degrees F

Inspection Setup Examples

  • Flatness
    • Optically
    • Straight edge method
    • Height Gage, other methods
  • Straightness
    • Height gage and V-Blocks
  • Roundness
    • V-Blocks, Height gage and associated problems
    • Roundness checking machine
  • Cylindricity
    • V-Blocks, height gage and associated problems
  • Orientation Tolerances
    • Perpendicular
    • Parallellism
    • Angularity
  • Position Tolerancing and Inspection
    • Verification – Use Unit 4 in GeoTol Pro book
    • Paper Gaging
    • Coordinate Measuring Machines
  • Profile
    • Profile of a Surface
    • Optical Comparator Explanation
    • Verification and inspection
    • Data reporting
  • Runout
    • Setups and Tolerance Zones, Verification

Other Inspection Methods

  • Coordinate Measuring Machines
  • Scanning
  • Air
  • Electronic