Dimensioning and Tolerancing
The ASME Y14.5-2018 standard, titled Dimensioning and Tolerancing, is the authoritative guideline for the practice of Geometric Dimensioning and Tolerancing (GD&T).
Purpose of ASME Y14.5-2018
The primary function of this standard is to establish a unified and symbolic language for specifying dimensional and geometric requirements for parts and assemblies. Specifically, it establishes:
Its ultimate goal is to ensure the clear, precise, and unambiguous communication of design intent across all stages of product realization—from design to manufacturing to inspection.
What is it Used For?
ASME Y14.5-2018 is used by engineers, designers, manufacturers, and quality control professionals to define and control the form, fit, and function of mechanical parts. Key applications include:
In essence, the standard helps transform a conceptual design into a functional, manufacturable, and inspectable product.
| SDO | ASME: American Society of Mechanical Engineers |
| Document Number | Y14.5 |
| Publication Date | Feb. 11, 2019 |
| Language | en - English |
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