ISO DIS 230-3

Description / Abstract: This part of ISO 230 defines four tests, which are: - an environmental temperature variation error (ETVE) test;

- a test for thermal distortion caused by rotating spindles;

- a test for thermal distortion caused by moving linear axes;

- a test for thermal distortion caused by rotary motion of components.

The tests for thermal distortion caused by moving linear axes (see clause 7) are applicable to numerically controlled (NC) machines only and are designed to quantify the effects of thermal expansion and contraction as well as the rotational deformation of structure. For practical reasons, the test methods described in clause 7 apply to machines with linear axes up to 2 000 mm in length. If they are used for machines with axes longer than 2 000 mm, a representative length of 2 000 mm in the normal range of each axis should be chosen for the tests.

The tests correspond to “drift test procedure” as described in A.4.2 of ISO/TR 16015, applied for machine tools.