[Go...] Posted October 2, 2019 Share Posted October 2, 2019 Hello everyone, I have little time in this interesting world of Dimensional Meteorology, I have this doubt regarding knowing how to differentiate by observing a drawing if it is tolerated under ASME Y14.5 or ISO 1101, please if anyone has any comments on that I will appreciate it . Thank you Link to comment Share on other sites More sharing options...
[Ia...] Posted October 2, 2019 Share Posted October 2, 2019 Typically, you will see a section of the drawing that states: Notes unless otherwise specified, or something to that extent. Underneath that, it will tell you to interpret per ASME or ISO. I've only been in this industry 3 years, but every drawing I've seen states it like that. Link to comment Share on other sites More sharing options...
[Go...] Posted October 2, 2019 Author Share Posted October 2, 2019 Please sign in to view this quote. Thank you, I will carefully look for a note in the drawings Link to comment Share on other sites More sharing options...
[Br...] Posted October 2, 2019 Share Posted October 2, 2019 Both standards require the drawing to state that it is to be interpreted per that particular standard. Link to comment Share on other sites More sharing options...
[Ri...] Posted October 3, 2019 Share Posted October 3, 2019 Please sign in to view this quote. Not quite for ISO. ISO only requires one ISO specification to be listed on the drawing, and then ALL ISO specifications are invoked. So it doesn't have to say interpret drawing per ISO 1101. It could reference a completely different ISO specification for something unrelated, and technically then ISO 1101, and a whole host of ISO specs are invoked. There are a lot of ISO specs when it comes to GD&T, and this saves from having to list all of them. Link to comment Share on other sites More sharing options...
[Aa...] Posted October 3, 2019 Share Posted October 3, 2019 Ah, yes, the invocation principle from 8015. This might help: the decimal point in ISO is a comma. In ASME, it's a period. Link to comment Share on other sites More sharing options...
[Br...] Posted October 3, 2019 Share Posted October 3, 2019 Please sign in to view this quote. Does this only cover ISO GD&T standards, or is it the wide range of ISO specs? Link to comment Share on other sites More sharing options...
[Ri...] Posted October 3, 2019 Share Posted October 3, 2019 That's a good question.... I believe it is only in reference to GPS system. It is in ISO 8015, as the invocation principle. Link to comment Share on other sites More sharing options...
[Aa...] Posted October 3, 2019 Share Posted October 3, 2019 Please sign in to view this quote. Right-o. Link to comment Share on other sites More sharing options...
[Go...] Posted October 3, 2019 Author Share Posted October 3, 2019 Please sign in to view this quote. Basically my question is in relation to the application of GD&T is knowing how to differentiate when you have to apply ISO 1101 or ASME Y14.5 2009, I understand that an alternative is to question the design department or technical center, while I would like to know how it is decided how to use or apply the GD&T either ISO or ASME Link to comment Share on other sites More sharing options...
[De...] Posted October 3, 2019 Share Posted October 3, 2019 You literally quoted the answer to your own question. ❓ Link to comment Share on other sites More sharing options...
[Br...] Posted October 3, 2019 Share Posted October 3, 2019 Sounds like you got your answer and a little more for a bonus. They must be stated on the drawing. ISO just needs to reference one of the ISO GPS standards, and Y14.5 should to state the standard and revision year(e.g. ASME Y14.5-2009). Link to comment Share on other sites More sharing options...
[Go...] Posted October 4, 2019 Author Share Posted October 4, 2019 Please sign in to view this quote. I think that I still have not explained myself at all ... many of us know that the communication bridges between the departments are not entirely good, however, my point is that any design or drawing should have that information in the design itself in view of Who is using it to make a sizing and know that GD&T should be applied, many of us know that a large number of designs that are owned by customers and developed by their own design department are handled, my conclusion is that any design should indicate under which GD&T should be sized if ASME Y14.5 2009 or ISO 1101. Link to comment Share on other sites More sharing options...
[De...] Posted October 4, 2019 Share Posted October 4, 2019 If a designer intends a part to be checked in accordance with Y14.5-2009 then the designer is REQUIRED to put the notice on the blueprint. This is not an opinion, this is in the standard. If a print contains a reference to an ISO GD&T standard, then the part needs to be checked in accordance with ISO 1101. If the print does not have references to either, then you need to determine how to interpret the print through discussion with the designer / engineer / management. Link to comment Share on other sites More sharing options...
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