Libreng Kasanayan sa Inhinyero
GD&T Tolerance Calculator
ISO 1101 geometric dimensioning and tolerancing reference. Pumili ng tolerance type, pumasok ng value, at itakda ang datum frame upang makita ang symbol, tolerance zone, at inspection method.
ISO 1101
14 Tolerance Types
ASME Y14.5
GD&T Reference
Feature Control Frame
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Tolerance Zone Shape
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Category
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Kinakailangan ba ang Datum?
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Inspection Method
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Geometric Tolerance Types Summary
| Symbol | Name | Category | Datum? | Zone |
|---|---|---|---|---|
| ⏥ | Flatness | Form | No | Dalawang parallel planes |
| ⏤ | Straightness | Form | No | Dalawang parallel lines / cylinder |
| ○ | Circularity | Form | No | Annular ring |
| ⌭ | Cylindricity | Form | No | Dalawang coaxial cylinders |
| ⊥ | Perpendicularity | Orientation | Yes | Dalawang parallel planes / cylinder |
| ∠ | Angularity | Orientation | Yes | Dalawang parallel planes |
| ∥ | Parallelism | Orientation | Yes | Dalawang parallel planes / cylinder |
| ⌖ | Position | Location | Yes | Cylindrical / between planes |
| ◎ | Concentricity | Location | Yes | Cylindrical |
| ↗ | Circular Runout | Runout | Yes | Dalawang coaxial circles |
| ↗↗ | Total Runout | Runout | Yes | Dalawang coaxial cylinders |
| ⌒ | Profile ng isang Linya | Profile | Optional | Dalawang equidistant na kurba |
| ⌓ | Profile ng isang Surface | Profile | Optional | Dalawang equidistant na ibabaw |
Tip: Ang form tolerances (flatness, straightness, circularity, cylindricity) ay hindi kailanman nangangailangan ng datum reference. Ang orientation at location tolerances ay laging nangangailangan ng hindi bababa sa isang datum.
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