ACCEPTANCE TEST AND REVERIFICATION TEST FOR COORDINATE MEASURING MACHINES (CMMS) - PART 2: CMMS USED FOR MEASURING LINEAR DIMENSIONS
American Society of Mechanical Engineers
Foreword
Committee Roster
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Environmental and metrological requirements
5.1 Environmental conditions
5.2 Operating conditions
5.3 Length measurement error, E[L]
5.4 Repeatability range of the length measurement error, R[0]
5.5 Workpiece loading effects
6 Acceptance tests and reverification tests
6.1 General
6.2 Principle
6.3 Length measurement error with zero ram axis stylus tip
offset, E[0]
6.3.1 General
6.3.2 Measuring equipment
6.3.3 Procedure
6.3.4 Derivation of test results
6.4 Repeatability range of the length measurement error, R[0]
6.5 Length measurement error with ram axis stylus tip offset of
length 150 mm, E[150]
6.5.1 Measuring equipment
6.5.2 Procedure
6.5.3 Derivation of test results
6.6 Dual ram CMMs
6.6.1 Simplex operating mode
6.6.2 Duplex operating mode
7 Compliance with specifications
7.1 Acceptance test
7.1.1 Acceptance criteria
7.1.2 Data rejection and repeated measurements
7.1.3 Thermal derating of specifications
7.2 Reverification test
8 Applications
8.1 Acceptance test
8.2 Reverification test
8.3 Interim check
9 Indication in product documentation and data sheets
Annex A (informative) - Interim check
A.1 Interim check of the CMM
A.2 Interim testing and the comparison to specifications
A.2.1 General
A.2.2 Interim testing using uni-directional artefacts
Annex B (normative) - Artefacts that represent a calibrated test
length
B.1 General
B.2 Bi-directional measurements
B.2.1 General
B.2.2 Gauge blocks
B.2.3 Step gauges measured in a bi-directional manner
B.2.4 Ball bars/ball plates measured in a bi-directional manner
B.2.5 Laser interferometry with contact probing measured in a
bi-directional manner
B.3 Uni-directional measurements (must be supplemented with
bi-directional measurements)
B.3.1 General
B.3.2 Calibrated test length composed of uni-directional and
short gauge block measurements
B.3.3 Artefacts for uni-directional measurements
Annex C (informative) - Alignment of gauges
C.1 General
C.2 Parallel face gauges
C.3 Ball bar/ball plate gauges
Annex D (normative) - Mathematical adjustments to Low CTE artefacts
D.1 General
D.2 Requirements
Annex E (normative) - Test uncertainty
Annex F (normative) - Traceability of calibrated test lengths
Annex G (normative) - Decision rule for conformance testing
Annex H (informative) - Interim testing of CMM systems
Annex I (normative) - ASME B89.4.10360.2 Data sheet
Annex J (informative) - Figures 12, 13 and 14 from ISO 10360-1:2000
Bibliography
Describes requirements and methods for specifying and testing the performance of coordinate measuring machines (CMMs) having three linear axes perpendicular to each other and up to one rotary axis positioned arbitrarily with respect to these linear axes.
| Document Type | Standard |
| Status | Current |
| Publisher | American Society of Mechanical Engineers |
| Supersedes |
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