Overview
ISO 5463:2024 - Geometrical product specifications (GPS) - Rotary axis form‑measuring instruments - Design and metrological characteristics defines the principal design and metrological characteristics for instruments that measure form deviations using a rotary axis. The standard covers instruments that acquire radial and axial deviations in a cylindrical coordinate system (longitudinal, radial and angular directions) and specifies what manufacturers, calibrators and users need to know about construction, probe systems and metrological performance. It explicitly excludes coordinate measuring systems (CMMs) as defined in the ISO 10360 series, except by special agreement.
Key technical topics and requirements
- Scope and definitions
- Definitions for rotary axis form‑measuring instruments, centring, levelling and probe terminology.
- The cylindrical measuring coordinate system (R, H, θ) and origin conventions.
- Design characteristics
- Generic construction principles and layout for rotary‑axis instruments.
- Types and variants described (e.g., rotating workpiece instruments - vertical/horizontal, between‑centres; stationary workpiece instruments).
- Probe system design: contact probes and other probe types (stylus, tip and arm).
- Metrological characteristics
- Rating operating condition including environmental and operating conditions that affect performance.
- Probe characteristics: reference point specification, probe error and dynamic response considerations.
- Requirements and guidance for correction of form deviations and treatment of material measure corrections.
- Conformity and uncertainty
- Determination of conformity to specification, including measurement uncertainty assessment and decision rules for acceptance/rejection.
- Supporting annexes
- Normative Annex A for rotating workpiece instruments and informative annexes on artefacts, probe dynamics, incidental machine effects (“cresting”), other probe types and the GPS matrix relationship.
Practical applications and who uses this standard
ISO 5463:2024 is intended for:
- Manufacturers and designers of rotary axis form‑measuring instruments (spindles, test rigs).
- Metrology and calibration laboratories developing test procedures and uncertainty budgets.
- Quality and inspection engineers who verify form, run‑out and extracted surface deviations in cylindrical coordinates.
- Machine tool and inspection equipment suppliers integrating rotary measuring axes.
Practical uses include specifying instrument design and performance, creating acceptance and verification procedures, and ensuring consistent measurement traceability for form measurements performed on rotating parts or by rotating fixtures.
Related standards (context)
- ISO 14638 (GPS matrix model) - positions ISO 5463 within the GPS system.
- ISO 8015 (fundamental GPS rules) and ISO 14253‑1 (decision rules) - apply unless otherwise stated.
- ISO 14978, ISO/IEC Guide 98‑3 (GUM) and ISO/IEC Guide 99 (VIM) - referenced for measuring equipment concepts and uncertainty.
Keywords: ISO 5463:2024, rotary axis form‑measuring instruments, GPS, metrological characteristics, probe error, measurement uncertainty, design characteristics.
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