Asme y14.5 2009 free pdf3/4/2024 ![]() Click here to purchase the full version from the ANSI store. What do you think? RE: Interrupted FOS classification, ASME Y14. ASME Y14.5-2009 Dimensioning and Tolerancing Engineering Drawing and Related Documentation Practices AN INTERNATIONAL STANDARD Revision of ASME Y14.5M-1994 (R2004) This is a preview of 'ASME Y14.5-2009'. Therefore it's not unlikely that the committee members that originally added that figure were considering the collection of the outer faces of the tabs as a FOS, the only type that was at the time, which is now called "regular feature of size". Department of Energys Office of Scientific and Technical Information. FOS prior to the 2009 version were only "regular" (but obviously weren't called that way as the different types didn't exist yet). ASME Y14.5-2009 Update on Changes from 1994 Standard. It uses limit tolerancing, which is preserved almost exclusively for features of size, and it doesn't look like one of the typical exceptions (like depth of a hole, chamfer or radius). As I mentioned above this figure was featured in the 94' version of the standard. If the teeth ends are flat, what is measured by the diameter tolerance? Is the 64.6-65.0 dimension measured over the sharp corners?Īnyway, I tend to agree that this should be classified as an irregular FOS per the 2009 standard as I suggested in the OP and you confirmed, but I think it may not be that obvious. I didn't notice that the ends of the teeth were flat rather than rounded, but now that you say it - it does look that way, at least in the 2009 version.Ĭuriously, in the 1994 version of the figure, 5-43, they end look rounded, at least in my eyes.
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