Surface and edge tolerances
What is it?
This one-day course is normally offered as an additional module, integrated with one of our geometrical tolerancing or GPS courses, but can also be provided as a standalone course.

Surface texture tolerances have changed very rapidly in recent years, and all of the current standards have been changed since 1996.  This course brings delegates up-to-date with the use of the machining symbol, and the current system of annotation for specifying surface texture requirements to BS EN ISO 1302, as well as running through some of the more important parameters that can be used.

In addition, the course covers two areas of tolerancing that are rarely utilized;  the surface imperfection parameters in BS EN ISO 8785, which may be of use to those manufacturing composite components, and the specifications 'for edges of unidentified shape' in BS ISO 13715, which provide a system for defining the amount of 'burring' or 'blunting' that is permitted on 'unbroken' edges (i.e. edges without radii or chamfers).
  • Learn about surface profiles, roughness and waviness.


  • Find out why there is more to surface texture than Ra or Rz.


  • Discover how to tolerance edges.

Duration
1 day.


Who is it for?
Engineers, designers and technicians.
What does it cover?
  • introducing surface texture
  • how surface texture is measured
  • use of the machining symbol 
  • surface characteristics
    • profile
    • roughness
    • waviness
  • common parameters
  • filtration and transmission bands
  • surface imperfection parameters
  • edge tolerances
  • standards
    • current BS & ISO standards
    • future developments