NBN ISO 10791-7:2021

This document specifies, by reference to the relevant parts of ISO 230, several families of tests for
machining centres with horizontal or vertical spindle or with universal heads of different types,
standing alone, or integrated in flexible manufacturing systems. This document also establishes the
tolerances or maximum acceptable values for the test results corresponding to general purpose and
normal accuracy machining centres.
This document is also applicable, totally or partially, to numerically controlled milling and boring
machines, when their configuration, components, and movements are compatible with the tests
described herein.
This document specifies standard test pieces with reference to ISO 230-1, cutting tests under finishing
conditions. It also specifies the characteristics and dimensions of the test pieces themselves. This
document is intended to supply minimum requirements for assessing the cutting accuracy of the
machining centres with 3 to 5 simultaneous machining axes. Annex A introduces a freeform test piece
for five-axis machining centres. This machining test is applied to machining centres using five-axis
flank milling of freeform surfaces.