Geometric Dimensioning and Tolerancing
GPTKB entity
Statements (50)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
gptkb:technical_specification
|
| gptkbp:abbreviation |
gptkb:GD&T
|
| gptkbp:appliesTo |
features of size
features without size |
| gptkbp:basisFor |
statistical process control
CMM (Coordinate Measuring Machine) inspection functional gaging |
| gptkbp:category |
gptkb:technical_specification
engineering methodology |
| gptkbp:enables |
clear communication of design intent
inspection and quality control interchangeability of parts |
| https://www.w3.org/2000/01/rdf-schema#label |
Geometric Dimensioning and Tolerancing
|
| gptkbp:improves |
product quality
cost efficiency manufacturability |
| gptkbp:includes |
symbols
datums feature control frames material condition modifiers tolerance zones |
| gptkbp:materialConditionModifier |
LMC (Least Material Condition)
MMC (Maximum Material Condition) RFS (Regardless of Feature Size) |
| gptkbp:purpose |
define allowable variation in part geometry
|
| gptkbp:reduces |
ambiguity in engineering drawings
|
| gptkbp:relatedTo |
metrology
dimensioning engineering drawing tolerancing |
| gptkbp:requires |
training for correct application
|
| gptkbp:standardizedBy |
gptkb:ASME_Y14.5
gptkb:ISO_1101 1949 |
| gptkbp:symbol |
⌀ (diameter)
⏥ (flatness) ⏦ (perpendicularity) ⏧ (parallelism) ⏨ (position) ⏩ (concentricity) ⏫ (cylindricity) ⏬ (profile of a surface) ⏭ (profile of a line) ⏮ (runout) ⏯ (total runout) |
| gptkbp:usedIn |
manufacturing
mechanical engineering product design |
| gptkbp:bfsParent |
gptkb:ASME_Y14.5
|
| gptkbp:bfsLayer |
4
|