ASME Y14.5 PDF

Description

ASME Y14.5 is the authoritative guideline for the design language of Geometric Dimensioning and Tolerancing.
Y14.5 standard considered authoritative guideline design language geometric dimensioning tolerancing (gd&t.) establishes symbols, rules, definitions, requirements, defaults, recommended practices stating interpreting gd&t related requirements use engineering drawings, models defined digital data files, documents. essential tool communicating intent — parts technical drawings desired form, fit, function interchangeability. providing uniformity drawing specifications interpretation, reduces guesswork throughout manufacturing process improving quality, lowering costs, shortening deliveries.   now, consensus committee experts revised 21st-century applications. widespread computer-aided (cad) industry transition toward reduced orthographic views product definition, model added many figures standard. revision also emphasizes profile location tolerances applied surfaces. important changes include: concept feature size; datum references degrees freedom; composite position tolerances; surface boundaries axis methods interpretation; symbology modifiers tools. additionally, subject matter restructured better readability, profile, orientation, form now separate sections, material within sections reorganized. asme y14.5-2018 replacement y14.5-2009.