Overview
EN ISO 10360-3:2000 is part of the ISO 10360 series of Geometrical Product Specification (GPS) standards that define acceptance and reverification tests for coordinate measuring machines (CMM). Part 3 specifically applies to four‑axis CMMs that use a rotary table as the fourth axis. The standard specifies test principles and procedures to verify that a machine’s performance for rotary‑table measurement is within the declared maximum permissible errors (MPEs).
Key topics and requirements
- Scope and purpose
- Acceptance tests (manufacturer) and reverification tests (user) for four‑axis CMMs with a rotary table.
- Tests supplement the size‑measuring tests of ISO 10360‑2 and are aimed at errors introduced by rotary table motion.
- Metrological characteristics
- Defines the error of indication components for four‑axis systems: radial (FR), tangential (FT) and axial (FA).
- MPE values for FR, FT, FA are expressed in micrometres and are stated by the manufacturer (acceptance) or chosen by the user (reverification).
- Environmental and operating conditions
- Limits for temperature, humidity and vibration must be respected as specified by manufacturer/user.
- Procedures require adherence to machine warm‑up, stylus configuration, cleaning, probing qualification and rotary‑table set‑up.
- Test equipment and procedure
- Two calibrated test spheres (10–30 mm diameter; form calibrated) are mounted on the rotary table at defined radius (r) and height (h).
- Series of measurements are taken with the table rotated through multiple angular positions (recommended to cover at least 720°) to determine centre coordinates.
- FR, FT and FA are calculated as the peak‑to‑peak variation of the sphere centre coordinates in the radial, tangential and axial directions.
Applications and users
- Practical uses:
- Acceptance testing of new four‑axis CMMs prior to installation.
- Periodic reverification for quality assurance and traceability in production metrology.
- Comparative evaluation when matching CMM capability to large workpiece tolerances or when extending measuring volume via a rotary table.
- Typical users:
- CMM manufacturers and commissioning teams
- Metrology laboratories and quality engineers
- Aerospace, automotive and precision manufacturing sectors that use four‑axis measurement
Related standards
- ISO 10360-1 (vocabulary)
- ISO 10360-2 (CMMs for linear dimension tests)
- ISO 10360 (series) - other parts for scanning, multi‑stylus probings, etc.
- ISO 14253-1 and the VIM (metrology vocabulary) referenced for decision rules and terms
Keywords: EN ISO 10360-3:2000, GPS standard, coordinate measuring machines, CMM acceptance test, four‑axis CMM, rotary table, MPE, error of indication, test spheres, CMM reverification.
