Engineering:ASME Y14.5
ASME Y14.5 is a standard published by the American Society of Mechanical Engineers (ASME) to establish rules, symbols, definitions, requirements, defaults, and recommended practices for stating and interpreting Geometric Dimensions and Tolerances (GD&T).[1] ASME/ANSI issued the first version of this Y-series standard in 1973.[2]
Overview
ASME Y14.5 is a complete definition of Geometric Dimensioning and Tolerancing. It contains 15 sections which cover symbols and datums as well as tolerances of form, orientation, position, profile and runout.[3] It is complemented by ASME Y14.5.1 - Mathematical Definition of Dimensioning and Tolerancing Principles. Together these standards allow for clear and concise detailing of dimensional requirements on a product drawing or electronic drawing package as well as the verification of the requirements on manufactured parts. Effective application of GD&T allows for parts to be verified by dimensional measurements, gauging, or by CMM.
History
The modern standard can trace its roots to the military standard MIL-STD-8 published in 1949.[4] It was revised by MIL-STD-8A in 1953, which introduced the concept of modern GD&T "Rule 1".[5][6] Further revisions have continued to add new concepts and address new technology like Computer Aided Design and Model-based definition. A list of revisions follows:[6]
- ASME Y14.5-2018, "Dimensioning and Tolerancing"
- Current Standard
- Preceded by ASME Y14.5-2009
- ASME Y14.5-2-2017, "Certification of Geometric Dimensioning and Tolerancing Professionals"
- Current Standard
- Preceded by ASME Y14.5-2-2000
- ASME Y14.5-2009
- Succeeded by ASME Y14.5-2018
- Preceded by ASME Y14.5M-1994
- ASME Y14.5M-1994
- Succeeded by ASME Y14.5-2009
- Reaffirmed in 2004
- Preceded by ANSI Y14.5M-1982
- ANSI Y14.5M-1982
- Preceded by ANSI Y14.5-1973
- Reaffirmed in 1988
- ANSI Y14.5-1973
- Succeeded by ASME Y14.5M-1982
- Preceded by USASI Y14.5-1966
- USASI Y14.5-1966
- Succeeded by ANSI Y14.5-1973
- Preceded by ASA Y14.5-1957
- ASA Y14.5-1957
- Succeeded by USASI Y14.5-1966
- Preceded by ASA Z14.1 Series
See also
References
- ↑ "Dimensioning and Tolerancing". https://www.asme.org/products/codes-standards/y145-2018-dimensioning-and-tolerancing. Retrieved 5 May 2019.
- ↑ "SAI Webstore - ANSI Y14.5-1973". Archived from the original on 6 May 2019. https://web.archive.org/web/20190506015654/https://infostore.saiglobal.com/en-us/Standards/ANSI-Y14-5-1973-96155_SAIG_ANSI_ANSI_201203/. Retrieved 5 May 2019.
- ↑ Dimensioning and Tolerancing - Table of Contents (2018 ed.). The American Society of Mechanical Engineers. https://files.asme.org/Catalog/Codes/PrintBook/35976.pdf.
- ↑ Morse, Edward (1 August 2016). "Tolerancing Standards: A Comparison". Archived from the original. Error: If you specify
|archiveurl=, you must also specify|archivedate=. https://web.archive.org/web/20170911011319/https://www.qualitymag.com/articles/93437-tolerancing-standards-a-comparison. - ↑ MacMillan, David M.; Rollande, Krandall (2014). "History of Geometric Methods In Dimensioning and Tolerancing". Archived from the original on 25 November 2017. https://web.archive.org/web/20171125215503/https://www.circuitousroot.com/artifice/drafting/drawing-studies/dt/history-geometric/index.html. Retrieved 5 May 2019.
- ↑ 6.0 6.1 MacMillan, David M.; Rollande, Krandall (2014). "Bibliography for Dimensioning and Tolerancing With an Emphasis on Geometric Methods". Archived from the original on 27 March 2019. https://web.archive.org/web/20190327221816/https://www.circuitousroot.com/artifice/drafting/drawing-studies/dt/bibliography-for-dt/index.html. Retrieved 5 May 2019.
External links
- 2018 | Y14.5 - Dimensioning and Tolerancing Official ASME page
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