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New interesting concepts from ISO TC 213

New interesting concepts from ISO TC 213. ACMC Annual General Meeting June 14. – 15. 2001 Ottawa, Canada Johan Dovmark, Novo-Nordisk - Medical Systems. ISO/TC 213 Dimensional and geometrical product specifications and verification. 14. June 1996. (D). Joint Harmonization Group March 1993.

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New interesting concepts from ISO TC 213

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  1. New interesting concepts from ISO TC 213 ACMC Annual General Meeting June 14. – 15. 2001 Ottawa, Canada Johan Dovmark, Novo-Nordisk - Medical Systems

  2. ISO/TC 213Dimensional and geometrical product specifications and verification 14. June 1996

  3. (D) Joint Harmonization GroupMarch 1993  ISO/TC 10/SC 5 (USA) ISO/TC 3 ISO/TC 57 (USSR)

  4. ISO TC 213 - SCOPE Standardization in the field of geometrical product specifications (GPS) i.e. macro- and microgeometry specifications covering dimensional and geometrical tolerancing, surface properties and the related verification principles, measuring equipment and calibration requirements including the uncertainty of dimensional and geometrical measurements. The standardization includes the basic layout and explanation of drawing indications (symbols). Note: The definition of the specific proportions and dimensions of drawing indications (symbols) and their execution are excluded from the scope.

  5. ISO/TC 213 - Structure

  6. Uncertainty of Measurement and decision rules UE  UT ISO/TC 213 - WG4 ISO 14253 part 1-4 14407

  7. PUMA Measurement method Uncertainty Budget UENUT Adequate measurement prcedure Measuring Task Target uncertainty UT Principle of measurement Measurement procedure Assumptions knoledge etc. Uncertainty modelling Uncertainty components UEN = k x u Y N Measurement conditions Change of UEN possible Change assumptions and/or modelling and/or improve knowledge Y N Change of UEN possible Change conditions and/or procedure and/or methode Y N Change of UEN possible Change principle of measurement Y N Change of UEN possible Change measuring task or target uncertainty No adequate measurement procedure possible Y N

  8. Types of Uncertainty • Correlation-uncertainty • Specification-uncertainty • Measurement-uncertainty

  9. Vagifem

  10. Types of Uncertainty • Correlation-uncertainty • Specification-uncertainty • Measurement-uncertainty

  11. F = 5 - 20 N F = 5 - 20 N Functional needs

  12. 0,01 D GPSGeometrical Product Specification

  13. 20 18 16 14 12 Force, F [N] 10 8 6 4 2 0 8,1 8,01 8,02 8,03 8,04 8,05 8,06 8,07 8,08 8,09 Diameter, D [mm] Correlation

  14. Types of Uncertainty • Correlation-uncertainty • Specification-uncertainty • Measurement-uncertainty

  15. D LSL USL Specification -uncertainty Specification uncertainty ?

  16. Types of Uncertainty • Correlation-uncertainty • Specification-uncertainty • Measurement-uncertainty

  17. D LSL USL Measurement Uncertainty

  18. Verification UCompliance Types of Uncertainty • Correlation-uncertainty • Specification-uncertainty • Measurement-uncertainty Specification Measurement

  19. General Requirements for GPS-measuring equipment ISO/TC 213 - WG6 ISO 14978 463 1938 9121 & 9493 13225 13385 ISO 14978 General Consepts & Requirements

  20. Size ISO/TC 213 - WG12 ISO 286 - 1 1829 2768-1 14405 14406 16570

  21. Vertical GPS principles ISO/TC 213 - WG14 ISO 17450 - 1 17450 - 2

  22. Measurement Perfect shape Imaginationof the interface Part of Part of Part of Part of Part of Part of Filtration of Filtration of Filtration of Filtration of Set of operations on Set of operations on Set of operations on Respecting constraints with respect to Respecting constraints with respect to Representing Representing Material Material Part of Part of Part of Reminder- Structure - Example - ConclusionPoints of view (Part 1) Nominal Specification Verification

  23. WG14 - Vertical GPS principles

  24. ISO 17450 Specification:

  25. Partition: Association: Operations - DATUM

  26. Association: Partition: Construction: Partition: Association: Collection: Operations – TOLERANCED FEATUR

  27. Specification Result Comparison Operations

  28. GPS ID/code Definition of Tolerance, t Definition of Feature-characteristic Assesment of Deviations – comparison with t Requirements Measuring equipment Requirements Calibration & Standards ISO/TC 213 - Goals • Harmonize terminology • Make fundamental rules • Make clear definition – computerize-able • Develop toolboxes for expression of functional needs • Close gaps and Eliminate contradictions

  29. The New GPS matrix

  30. LSL USL Specification -uncertainty ISO/TC 213 - Goals • Harmonize terminology • Make fundamental rules • Make clear definition - computarizeable • Develop tollboxes for expresion of functional needs • Close gaps and Eleminate contradictions • Reduce specification unceratainty Default?

  31. ISO/TC 213 - Main Goals • To reduce the Correlation Uncertainty • Develop the necessary functional related tool • To reduce the Specification Uncertainty • Defining operators • Develop clear and unambiguous rules • Stating default rules • To enrich the improved GPS-Language • Strive to keep it as simple as possible

  32. Repair work 1101 GD&T 2692 MMC 5458 Position 5459-1 Datum's 5459-2 Datum's 14405 Diameter 8062 Mouldings 10135 Mouldings 4x2 Form standards 11 x surface roughness News 14660 – 1 & 2 14253 – 1 & 2 14253 - 3 Important Standards: published & drafts • New concepts • 17450 – 1 & 2 • 14407 • 14978

  33. WWW.ds.dk/isotc213

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