BS 4656-36:1987

Accuracy requirements, geometrical tests and practical tests with reference to BS 3800.

This part of ISO 8636 specifies, with reference to ISO 230-1, preliminary tests, geometrical tests and practical tests for portal-type plano-milling machines which apply to general purpose, normal accuracy, machines and gives the corresponding permissible deviations.

This part of ISO 8636 is applicable to machines with moving tables and fixed double columns. It does not include single-column (open-sided) machines and those with fixed tables and moving columns.

This part of ISO 8636 deals only with checking the machine accuracy. It does not apply to the testing of the running of the machine (vibration, abnormal noise, stick-slip motion of components, etc.) nor to the machine characteristics (speeds, feeds etc.) which should generally be checked before testing the accuracy.

This part of ISO 8636 provides the nomenclature used for the principal parts of the machine and the designation of the axes.

NOTE In addition to terms used in the three official ISO languages (English, French and Russian), this part of ISO 8636 gives the equivalent terms in the German and Italian languages in an annex; these have been included at the request of ISO Technical Committee ISO/TC 39 and are published under the responsibility of the member bodies for Germany, F.R. (DIN) and Italy (UNI). However, only terms given in the official languages can be considered as ISO terms.