Geometrical Dimensioning and Tolerancing (Fundamentals)

Duration:

2 days

Who is this course for?

This course is suited to all individuals involved in design and manufacturing processes, from design engineers through to manufacturing engineers, technicians and inspectors of all abilities.

Prerequisites

Whilst no prior knowledge is required, some familiarity with part drawings and general manufacturing processes would be beneficial.

Course objectives

The course provides a comprehensive introduction into how to apply and interpret Geometrical Dimensioning and Tolerancing. Both this training course, and the Geometrical Dimensioning and Tolerancing (Advanced) course are aligned to the ASME Y14.5 – 2018 and BS888:2020 standards.

This course covers the following content:

• Comprehensive Introduction to Geometrical Tolerancing
  Comparison of GD&T to conventional ± Tolerancing
  Benefits of GD&T
  A brief history of GD&T
• Symbols used in GD&T
  Feature control /Tolerance frames
  Datum feature identifiers
  Geometrical characteristics
  Modifying symbols
• The Envelope requirement
• Form Control
  Straightness, Flatness, Circularity & Cylindricity
• Datum Features
  Datum feature identification, Datum feature simulation, Datum reference frames, Datum system hierarchy, Common datum & Datum targets
• Orientation Control
  Angularity, Perpendicularity & Parallelism
• Basic dimensions
• Location Control
  Position, Concentricity & Symmetry
• Runout
  Circular Runout & Total Runout
• Profile Control
  Profile of a Line & Profile of a Surface
  Modifying Symbols: All Around, All Over & Between
• Flexible Tolerancing
  Maximum Material Requirement / Condition & Least Material Requirement / Condition

Course material is supplemented by training exercises enabling candidates to understand and apply geometric principles. Candidates are encouraged to bring along their own sample drawings and peer review at the end of the second day.

On completion of this course, engineers will:

• Understand the ‘Cost / Lead-time / Product Function’ benefits of employing the language of GD&T.
• Be able to correctly and appropriately apply GD&T to engineering component drawings / specifications.
• Be able to interpret GD&T on engineering component drawings / specifications.
• Understand how to apply suitable tolerances to the features of mating parts, to ensure assembly fit and component function.
• Understand the concept of maximum allowable variation in finished part geometry, as compared to the theoretically ideal.
• Have gained an appreciation of the inspection methods required to check part geometry.

Training facilities

Courses are available both online or as classroom courses. If you have a large number of delegates that require training we can also offer company specific courses either online, in-house (at TECHNIA offices) or on your own site.

Download the training brochure for Geometrical Dimensioning and Tolerancing (Fundamentals).