ASME Y14.5 2009 Update Text Material – Printed

$50.00

This text covers the differences between (additions to) the 2009 version of the ASME Y14.5 standard and the 1994 version.

Prerequisites: This text is for those already familiar with ASME Y14.5 and the 1994 standard. This is not a beginners text.

Description

Material covered: The ASME Y14.5-2009 standard generally adds new tools or symbols to what already exists in the 1994 version. Because the 2009 standard adds these symbols, drawings completed to the 1994 version may very well still be compliant with the 2009 standard. There are a couple of “changes” that does eliminate some practices in the 1994 standard. Derived median plane straightness is now derived median plane flatness. This is to say that the maximum material condition modifier can now be used with flatness when controlling the form of a derived median plane. In the 1994 standard, this was done using the straightness symbol. Another simple change is that the use of the RFS symbol is no longer permitted in the 2009 standard where it was an option in the 1994 standard. The 1994 standard has a well known issue known as the “tertiary datum issue”, which deals with whether or not a datum feature simulator is fixed in position or spring loaded. The 2009 standard revised the meaning of the material modifiers when used in a datum reference frame to address this issue.

Additional information

Weight 1 oz
Dimensions 1 × 1 × 1 in

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