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perpendicularity    
n. 垂直,直立

垂直,直立

perpendicularity
n 1: the relation of opposition between things at right angles
[synonym: {orthogonality}, {perpendicularity}, {orthogonal
opposition}]
2: the quality of being at right angles to a given line or plane
(especially the plane of the horizon)


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  • Perpendicularity - Drafting Standards, GD T Tolerance Analysis - Eng-Tips
    The orientation or perpendicularity tolerance zones are oriented to the datum reference frame and not the datum features The surface must then fall within the tolerance zone The perpendicularity specification reads: This feature is perpendicular to the datum reference frame which is established, in order, by datum features A and B
  • Difference between axial total runout and perpendicularity
    Hi all, A part is consisted of two coaxial cylindrical features Is there any difference between the following callouts: 1 Perpendicularity on the end face of one of the features to a datum axis of the other feature 2 Total axial runout on the same end face to the datum axis In terms of
  • Perpendicularity to Two Datums - Drafting Standards, GD T . . . - Eng-Tips
    Y14 5-1994 shows perpendicularity to two datums, which I've always used (Fig 6-35, p 182) Y14 5-2009 and 2018 show perpendicularity to two datums but add an angularity constraint to A|B (Fig 6-4, p 101) I believe the intent is the same, but the addition of the angularity FCF is just confusing in my opinion
  • Perpendicularity - Drafting Standards, GD T Tolerance Analysis - Eng-Tips
    The perpendicularity must be a refinement of the dimension tolerance, typically half or less The Help for this program was created in Windows Help format, which depends on a feature that isn't included in this version of Windows
  • Perpendicularity Callout - Drafting Standards, GD T . . . - Eng-Tips
    The perpendicularity callout is a zone tolerance of the perpendicularity of the flange on the tube to the axis of Datum A You take the basic location of the flange and project a line 1 2 the callout window one direction and 1 2 the other and that is your target window for the OD
  • Perpendicularity callout with curved datum 1 - Eng-Tips
    perpendicularity: the condition of a line element, surface, tangent plane, feature’s center plane, or feature’s axis at an implied or specified basic 90° perpendicular) angle relative to one or more datum planes or datum axes
  • Perpendicularity Stack-up - Drafting Standards, GD T Tolerance . . .
    Nothing -- so the stack for leaning is really about parallelism That's controlled by the perpendicularity tolerances going in opposite directions, but also the size tolerance John-Paul Belanger Certified Sr GD T Professional Geometric Learning Systems
  • True Position of a Feature to One Planar Datum - Eng-Tips
    Position is used here because B is a pattern of 2 holes and the tolerance needs to control their relative location (spacing) as well as their orientation to A So it needs to be a position tolerance and not perpendicularity If B was a single hole, then a perpendicularity tolerance would be appropriate Evan Janeshewski
  • Limits of perpendicularity related to thickness of part
    310toumad, I'm sure there are practical limits (I don't know of exact figures but I can envision points at which perpendicularity doesn't make sense in the bulk of applications) however with the establishment of whats "practical" there also comes very highly specific applications for which the normal rules (or rather - rules of thumb) do not apply
  • Question on Perpendicularity 1 - Eng-Tips
    My first thought that the 001 perpendicularity tolerance on RevA is not equivalent to the 001 perpendicularity tolerance on RevB The bore is longer than the face, therefore, the perpendularity calls up a tighter fixturing angle For RevA, consider opening up the perpendicularity tolerance





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