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Quality Control Equipment & Services

GPS ISO Standards – Level 1

Geometric Dimensioning and Tolerancing (GD&T) is the common, powerful language of industrial manufacturing. GD&T is recognized around the world as the only way of defining engineering drawings and CAD models efficiently and unambiguously. But the unfortunate reality is that most of the workforce that engages with mechanical drawings has an adequate understanding of this language. Many individuals and organizations get by for some time before costly or otherwise painful experiences convince them they need to improve their skills in use of GD&T.
The truth is that properly applied at the earliest stages of a product development project, GD&T can establish robust product quality, save months of development time, tens even hundreds of thousands of euros, and potentially millions over the lifecycle of a product.
GD&T training has real benefits: lower costs, less non‐conforming parts, higher tolerances.
InQuality, authorized partner of HEXAGON MI, offers on‐site and on‐line GD&T training courses.
Based on the latest ISO & ASME standards, our courses are tailor‐made to fully cover your particular needs.

Aims & Objectives

The course is delivered as an intensive, three‐day programme that covers the fundamental concepts of geometrical tolerancing to ISO standards and its application and interpretation.
Participants will discover how the system of geometrical tolerancing works, find out how to annotate and interpret drawings correctly, learn how different types of tolerance control different characteristics and how to choose the right tolerance for their application. The course includes extensive classroom discussions, team exercises and problem‐solving sessions.
Examples of drawings or components from the client, where available, are used in order to illustrate the course material. Suggestions to customize the course to specific participant needs can be discussed. To maximize the effectiveness of the training, an upper limit to the class size of 10 delegates is recommended.

Who it may concern

Design, development, manufacturing, assembly and quality engineers, CMM and CNC programmers, tool designers, toolmakers, technicians, and inspectors. In short anyone who creates, reads or edits mechanical part drawings and models

Course topics

  •  Standards in context
    • the ISO system and the GPS (Geometrical Product Specification) Method current ISO (GPS) vs ASME (GD&T) and
    • relevant national standards, future development
  • What is Geometrical Tolerancing?
    • benefits and advantages of Geometrical Tolerancing
    • major pitfalls of traditional coordinate tolerancing and how to overcome them
  • Features and Features‐of‐Size (ISO 17450‐3:2016)
  • Linear size tolerances
    • ISO 14405‐1:2016 and the Envelope Requirement
  • Datum and datum systems (as per ISO 5459:2011 and ISO/DIS 5459.2:2017)
    • what is a datum? datum vs. datum features, datum targets, simulated and compound datum
    • selection of datum features and controlling 6 degrees of freedom
    • indicating datums on drawings, annotation and symbology
  • Tolerance frames
    • tolerance features & symbols, tolerance frame modifiers
    • 3D‐CAD Model Based Annotation (MBD) (as per ISO 16792:2021) and 3D‐PMI
  • Theoretically exact dimensions (TEDs)
  • Tolerance characteristics (what do they really control? – ISO 1101:2017)
    • location, orientation, form and run‐out tolerances
    • profile tolerances ( ISO 1660:2017)
  •  Finding your way through the system – how to choose which tolerance characteristic to use
  • Simple Clearance Fits
    • worst Case Boundaries, virtual Condition & Virtual Size
    • Maximum Material Requirement and Bonus Tolerance (as per ISO 2692:2021)

After the course the participants will be able to:

Have an essential understanding of all the symbology used in ISO GPS system, how it's used to meet design intent and remove ambiguity.
Understand how the geometrical charactistics of features determine their functionality.
Understand how datums and theoretically exact dimensions work, what they are for and how to select them.
Understand the 14 types geometric tolerances, how they are related and what each one will control.
Understand how each and every one of an array of tolerance zone modifiers may used to increase or refine tolerance whilst ensuring the features meet their functional requirements.
Recognize the correct functional application of GD&T.

Inquality GD&T Seminars