Content AUKOM GD&T

  • Target group: Production metrologists, production engineers, developers, design engineers, QA heads
  • Prerequisites: For production metrologists: AUKOM 2 certificate recommended; For other target groups: None
  • Learning aims: The seminar provides in-depth knowledge on the topic of form & and positional tolerances in accordance with DIN ISO and ASME for advanced measuring technicians who work at interfaces to other departments and must communicate effectively. Design engineers, developers and production engineers gain an insight into the topic of form and positional tolerances from the viewpoint of the measuring technician who has to successfully implement the drawing specifications. An integrated understanding of measuring jobs and influencing parameters enables experts to communicate confidently with
  • interdepartmental areas and reduce measuring uncertainties; measuring results become more reliable and easier to compare. The minimization of costs and waste is supported.
  • Course duration: 3 days
  • Completion: Certificate



GD&T-1 Basic rules of the ISO system of GPS-System
Introduction, ISO 8015 – Basic rules of the Geometrical Product Specification (GPS), Steps to check geometrical deviations, Extracted median line – extracted median surface

GD&T-2 Tolerances of form, orientation, location and run-out – drawing indications
Drawing symbols to indicate form, orientation, location and run-out tolerances, Tolerance zones, Default rules of indications and examples to indicate exceptions

GD&T-3 Tolerances of form
Straightness, Roundness, Flatness, Cylindricity, Measuring of form deviations

GD&T-4 Tolerances of orientation, location and run-out
Relation between form deviations and orientation, location, run-out deviations, Datum referencing, Orientation, Location, Run-out

GD&T-5 Tolerances of profile form

Definitions, Drawing indications, Examples

GD&T-6 Principles of tolerancing I
Definition of sizes – ISO and ASME, Principle of indenpendence, Envelope requirement, Summary and examples

GD&T-7 Principles of tolerancing II

Basic rules of drawing indication, MMR – Maximum Material Requirement, Tolerancing of form and perpendicular deviations using MMR, Tolerancing of positional deviations using MMR, Checking workpieces considering MMR, Tolerancing of coaxial deviations using MMR, Tolerancing of symmetry deviations using MMR, LMR – Least Material Requirement, Reprocity requirement

GD&T-8 Tolerances of form, orientation, location and run-out – ASME
Basic rules and definitions, Envelope requirement, Datum referencing, Form tolerances, Orientation tolerances, Location tolerances, Composite and multiple-single-segment position tolerances, Profile form tolerances

GD&T-9 Workshop
Overview about the use of association criteria (Default rules) , Additional tolerancing indications in future (Deviations of the default rules), Examples to filtering, straightness tolerancing and datum referencing, Positional tolerancing (Without and with maximum material requirement), Symmetry tolerancing (Maximum material requirement), Maximum material requirement – Simulation of Go-gauging, Maximum material requirement – Comparison of optimization criteria.