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2024 | OriginalPaper | Buchkapitel

4. The GPS and GD&T Language

verfasst von : Stefano Tornincasa

Erschienen in: Technical Drawing for Product Design

Verlag: Springer International Publishing

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Abstract

This chapter is focused on the main differences between the ISO and ASME standards in the geometrical specification domain of the industrial products, and it starts with details on the historical evolution of the two standards. The main principles of the ISO GPS and ASME GD&T standards, such as the principle of independence and the envelope requirement, are illustrated. Designers are recommended to always indicate the reference standard in the technical drawings of companies, as the interpretation of drawing specifications and the relative inspection may lead to two different results. Finally, the main novelties of the new ASME Y14.5:2018 standard and the new ISO 22081 standard on general tolerances are shown.

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Fußnoten
1
It is not clear why the ISO 2768-1 standard was not withdrawn, which also does not comply with GPS principles, and replaceable with ISO 22081.
 
2
ASME Y14.5:2018 derived line definition (Sect. 3.22): an imperfect line formed by the center points of all cross sections of the feature. These cross sections are normal (perpendicular) to the axis of the unrelated AME (see Fig. 7.​14).
 
3
Gage in ASME.
 
Literatur
1.
Zurück zum Zitat ISO 8015:2011 Geometrical product specifications (GPS)—fundamentals concepts, principles and rules ISO 8015:2011 Geometrical product specifications (GPS)—fundamentals concepts, principles and rules
2.
Zurück zum Zitat Krulikowski A (1997) Fundamentals of GD&T self-study workbook, 2th ed. Effective Training Inc. Krulikowski A (1997) Fundamentals of GD&T self-study workbook, 2th ed. Effective Training Inc.
3.
Zurück zum Zitat ISO 2768-1,-2:1989 General tolerances—Part 1: Tolerances tor linear and angular dimensions without individual tolerance indications. Part 2: Geometrical tolerances for features without individual tolerance indicators ISO 2768-1,-2:1989 General tolerances—Part 1: Tolerances tor linear and angular dimensions without individual tolerance indications. Part 2: Geometrical tolerances for features without individual tolerance indicators
4.
Zurück zum Zitat ISO 22081:2021 Geometrical product specifications (GPS)—Geometrical tolerancing—General geometrical specifications and general size specifications ISO 22081:2021 Geometrical product specifications (GPS)—Geometrical tolerancing—General geometrical specifications and general size specifications
5.
Zurück zum Zitat ASME Y14.5:2018 Dimensioning and tolerancing. Engineering product definition and related documentation practices. American Society of Mechanical Engineers, New York, USA ASME Y14.5:2018 Dimensioning and tolerancing. Engineering product definition and related documentation practices. American Society of Mechanical Engineers, New York, USA
6.
Zurück zum Zitat ASME Y14.5.1:2019. Mathematical definition of dimensioning and tolerancing principles. American Society of Mechanical Engineers, New York, NY, USA ASME Y14.5.1:2019. Mathematical definition of dimensioning and tolerancing principles. American Society of Mechanical Engineers, New York, NY, USA
7.
Zurück zum Zitat Day D (2009) The GD&T hierarchy (Y14.5 2009). Tec-Ease, Inc Day D (2009) The GD&T hierarchy (Y14.5 2009). Tec-Ease, Inc
8.
Zurück zum Zitat Effenberger G (2013) Geometrical product specifications (GPS)—consequences on the tolerancing of features of size. TEQ Training & Consulting GmbH Effenberger G (2013) Geometrical product specifications (GPS)—consequences on the tolerancing of features of size. TEQ Training & Consulting GmbH
9.
Zurück zum Zitat ISO 17450-1:2011 Geometrical product specifications (GPS)—general concepts. Part 1: Model for geometrical specification and verification ISO 17450-1:2011 Geometrical product specifications (GPS)—general concepts. Part 1: Model for geometrical specification and verification
10.
Zurück zum Zitat Morse E (2016) Tolerancing standards: a comparison, quality magazine Morse E (2016) Tolerancing standards: a comparison, quality magazine
11.
Zurück zum Zitat Henzold G (2006) Geometrical dimensioning and tolerancing for design, manufacturing and inspection: a handbook for geometrical product specification using ISO and ASME standards. Butterworth-Heinemann Henzold G (2006) Geometrical dimensioning and tolerancing for design, manufacturing and inspection: a handbook for geometrical product specification using ISO and ASME standards. Butterworth-Heinemann
12.
Zurück zum Zitat ISO 5458:2018 Geometrical product specifications (GPS)—geometrical tolerancing—pattern and combined geometrical specification ISO 5458:2018 Geometrical product specifications (GPS)—geometrical tolerancing—pattern and combined geometrical specification
13.
Zurück zum Zitat ISO 1101:2017 Geometrical product specifications (GPS)—geometrical tolerancing—tolerances of form, orientation, location and run-out ISO 1101:2017 Geometrical product specifications (GPS)—geometrical tolerancing—tolerances of form, orientation, location and run-out
14.
Zurück zum Zitat Krulikowski A (1999) Advanced concepts of GD&T, textbook based on ASME Y14.5M:1994. Effective Training Inc Krulikowski A (1999) Advanced concepts of GD&T, textbook based on ASME Y14.5M:1994. Effective Training Inc
Metadaten
Titel
The GPS and GD&T Language
verfasst von
Stefano Tornincasa
Copyright-Jahr
2024
DOI
https://doi.org/10.1007/978-3-031-51187-5_4

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