VDI VDE 2631 Blatt-1 2016-08 PDF

Full title and description

STB VDI VDE 2631 Blatt-1:2016-08 — Form measurement - Principles. Guidance on fundamental principles, measurement conditions and procedures for form metrology (roundness, straightness and derived positional features) to achieve traceable, reproducible and comparable results from form-measuring instruments.

Abstract

This standard defines measurement methods, reference artefacts (normals) and measurement strategies so that form-measuring instruments can be checked and operated to produce traceable, reproducible and comparable form measurement results. It covers factors affecting measurements, mitigation strategies for external influences, and requirements for acceptance testing and stability monitoring of form measuring instruments.

General information

• Status: Current / Active.
• Publication date: 2016-08 (issued 01.08.2016).
• Publisher: Verlag des Vereins Deutscher Ingenieure (VDI) / VDE publishing.
• ICS / categories: 17.040.30 (Measuring instruments / form measurement / metrology).
• Edition / version: Edition 2016-08 (replaces earlier editions including 1999-06; draft 2015-05 was superseded by this edition).
• Number of pages: 26 pages.

Key bibliographic and status details above are taken from VDI/VDE bibliographic listings and standards distributors.

Scope

The standard applies to form measurement of regular geometries and describes the prerequisites and boundary conditions for measuring the form characteristics "roundness" and "straightness", and geometry-derived positional characteristics such as parallelism and squareness. It specifies measurement procedures, measurement artefacts (normals), and approaches to eliminate or reduce external effects so that users obtain traceable and comparable results from form-measuring equipment. The document is intended for verification, acceptance testing and stability monitoring of form measuring systems.

Key topics and requirements

• Terms and definitions for form metrology (roundness, straightness, related positional features).
• Fundamental principles of form measurement and description of reference artefacts (normals).
• Factors affecting measurement results (environmental, instrument-related, fixturing and setup errors).
• Measurement strategies and procedures to mitigate external influences and to ensure repeatability.
• Acceptance testing procedures for form-measuring instruments.
• Guidance on stability monitoring and long-term performance evaluation of form measuring systems.
• Requirements to achieve traceability, reproducibility and comparability of measurement results.

The list above summarizes the principal technical topics addressed in the standard.

Typical use and users

This standard is used by manufacturing metrology laboratories, machine-tool and form-measuring-instrument manufacturers, calibration laboratories, quality assurance and production engineers, and researchers working in precision engineering and surface/geometrics metrology. It supports instrument acceptance testing, procedure development, and establishment of measurement traceability and control plans.

Related standards

VDI/VDE 2631 is a multi-part series; related parts include (examples) Blatt 2 (signal transmission chain verification), Blatt 3 (filters), Blatt 4 (radial spindle deviation), Blatt 5 (axial spindle deviation), Blatt 6 (straightness deviation of linear guides), Blatt 7 (positional deviations of form-measurement axes) and Blatt 8 (stability monitoring). The 2631 series is commonly used alongside other VDI/VDE production and measurement technology guidelines.

Keywords

form measurement, form metrology, roundness, straightness, measurement principles, traceability, stability monitoring, acceptance testing, form-measuring instruments, normals (reference artefacts).

FAQ

Q: What is this standard?

A: VDI/VDE 2631 Blatt 1:2016-08 is the principles guideline for form measurement that defines the fundamentals, reference artefacts and procedures to obtain traceable and comparable form measurement results.

Q: What does it cover?

A: It covers terminology, the principles of measuring roundness and straightness (and derived positional features), factors affecting measurement, measurement strategies to reduce external influences, acceptance testing and stability monitoring methods for form-measuring instruments.

Q: Who typically uses it?

A: Metrology labs, calibrations/QA teams, instrument manufacturers, machine-tool builders and researchers involved in precision geometric measurements and process control.

Q: Is it current or superseded?

A: The published edition is 2016-08 and is listed as the current/active technical rule; it replaced earlier editions (for example the 1999 edition) and followed a 2015 draft process. Some bibliographic listings note confirmation activity in later years. Users should check VDI or national standards bodies for the very latest confirmation or amendment status before relying on the standard for compliance decisions.

Q: Is it part of a series?

A: Yes — VDI/VDE 2631 is a multipart series addressing different aspects of form measurement (signal chain verification, filters, spindle deviations, straightness, positional deviations, stability monitoring, etc.). Blatt 1 provides the foundational principles for the other parts.

Q: What are the key keywords?

A: Form measurement, form metrology, roundness, straightness, normals, traceability, acceptance testing, stability monitoring.