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What does PLTZF stand for?

PLTZF stands for Pattern Locating Tolerance Zone Framework


This definition appears very rarely

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As you know PLTZF is short for Pattern-Locating Tolerance Zone Framework, that’s why I mentioned “composite profile tolerance can only be applied to patterns of surfaces”, I can’t find out where exactly the standard says so, but I can provide what Alex said on his latest textbook, please ref to the attached for details. For your example, you may use multiple single-segment profile tolerance FCF to control it.
dtmbiz,Please keep in mind that my opinions on Y14. 5 terminology are just that, my own opinions. I sometimes question the usefulness of the terms PLTZF and FRTZF to describe the upper and lower segments of a composite FCF. The PLTZF (Pattern Locating Tolerance Zone Framework) does more than locate, it also orients. The FRTZF (Feature Relating Tolerance Zone Framework) does more than relate the features, it also orients them and in some cases can also locate them.