What is ISO 6779 - Test conditions for broaching machines about?
ISO 6779 specifies, with reference to ISO 230-1, the geometric tests on vertical internal type broaching machines with vertical Z-axis providing the main cutting motion. ISO 6779 specifies the applicable tolerances corresponding to the tests mentioned above for normal accuracy vertical internal type broaching machines.
ISO 6779 explains concepts or configurations and common features of vertical internal type broaching machines. It also provides related terminology and designation of axes. ISO 6779 deals only with the verification of the accuracy of the broaching machine.
Note: ISO 6779 does not apply to the operational testing of the machine (e.g. vibration, abnormal noise, stick-slip motion of components), nor to machine characteristics (e.g. speeds, feeds) as such checks are generally carried out before testing the accuracy.
Who is ISO 6779 - Test conditions for broaching machines for?
ISO 6779 on test conditions for broaching machines is useful for:
- The automotive industry
- The heavy engineering industry
- Manufacturers of broaching machines
Why should you use ISO 6779 - Test conditions for broaching machines?
ISO 6779 supplies information as wide and comprehensive as possible on tests on vertical internal type broaching machines which can be carried out for comparison, acceptance, maintenance, or any other purposes.
A broaching machine is a tool used to finish surfaces by drawing or pushing a broach cutter completely over and past the surface. A broach is made up of a row or rows of cutting teeth that are graded in height from the teeth that cut first to the teeth that cut last. ISO 6779 establishes the tolerances for the test results corresponding to general purpose and normal accuracy vertical internal type broaching machines
What’s changed since the last update?
BS ISO 6779:2019 supersedes ISO 6779:1981, which is withdrawn. BS ISO 6779:2019 includes some technical changes with respect to ISO 6779:1981. These include:
- The title has been changed
- The document's format has been aligned with new published ISO/TC 39/SC 2 documents
- “Table-up” machines have been added as a new configuration for vertical internal type broaching machines
- Some terms have been changed and equivalent non-formal terms in more languages have been added to Annex A
- All diagrams in this document have been regenerated
