ASME Y14.46:2018 pdf download

ASME Y14.46:2018 pdf download PRODUCT DEFINITION FOR ADDITIVE MANUFACTURING DRAFT STANDARD FOR TRIAL USE
1GENERAL1.1 Scope
This Draft Standard, hereafter referred to as “Standard,” covers definitions of terms and features unique to additivemanufacturing (AM) technologies with recommendations for their uniform specification in product definition data setsand in related documents. Unless otherwise specified, any reference to features, parts,or processes shall be interpretedas applying to parts or assemblies manufactured using an AM process. Additively manufactured parts or assembliesare referred to as “parts” throughout the Standard.The Standard extends to capturing relevant AM detail from design,manufacturing andquality engineering.
1.2 ASME Y14 Series Conventions
The conventions in paras. 1.2.1 through 1.2.9 are used in this and other ASME Y14 standards.1.2.1 Mandatory,Recommended,Guidance, and Optional Words
(a) The word “shall” establishes a requirement.
(b) The word “will”establishes a declaration of purpose on the part of the design activity.(c) The word “should” establishes a recommended practice.
(d] The word “may” establishes an allowed practice.
(e) The words “typical””example” and”“for reference” and the Latin abbreviation ““e.g.” indicate suggestions given forguidance only.
(f)The word “or” used in conjunction with a requirement or a recommended practice indicates that there are two ormore options for complying with the stated requirement or practice.
(g) The phrase “”unless otherwise specified”(UOS) shall be used to indicate a default requirement.The phrase is usedwhen the default is a generally applied requirement and an exception may be provided by another document orrequirement.
1.2.2 Cross-Reference of Standards. Cross-reference of standards in text with or without a date following the stan-dard designator shall be interpreted as follows:
(a) Reference to other ASME Y14 standards in the text without a date following the standard designator indicates thatthe issue of the standard identified in the References section (para. 1.5) shall be used to meet the requirement(b) Reference to other ASMEY14standards in the text with a date following the standard designator indicates that onlythat edition of the standard shall be used to meet the requirement.
1.2.3 Invocation of Referenced Standards.The following examples define the invocation of a standard when specifiedin the References section (para. 1.5) and referenced in the text of this Standard:
(a) when a referenced standard is cited in the text with no limitations to a specific subject or paragraph(s) of thestandard, the entire standard is invoked.For example,”Dimensioning and tolerancing shall be in accordance with ASMEY14.5″ is invoking the complete standard because the subject of the standard is dimensioning and tolerancing and nospecific subject or paragraph(s) within the standard are invoked.
(b) When a referenced standard is cited in the text with limitations to a specific subject or paragraph(s)of the standard,only the paragraph(s) on that subject are invoked.For example,”Aassign part or identifying numbers in accordance withASME Y14.100″ is invoking only the paragraph(s) on part or identifying numbers because the subject of the standard isengineering drawing practices and part or identifying numbers is a specific subject within the standard.
(c) When a referenced standard is cited in the text without an invoking statement such as “in accordance with.” thestandard is for guidance only.For example,”For gaging principles, see ASMEY14.43″ is only for guidance and no portion ofthe standard is invoked.
1.2.4 Parentheses Following a Definition.When a definition is followed by a standard referenced in parentheses, thestandard referenced in parentheses is the source for the definition.
1.2.5 Notes. Notes depicted in this Standard in ALL UPPERCASE letters are intended to reflect actual product definition data. Notes depicted in initial uppercase or in lowercase letters are to be considered supporting data to the contents of this Standard and are not intended for literal entry into product definition data. A statement requiring the addition of a note with the qualifier “such as” is a requirement to add a note, and the content of the note is allowed to vary to suit the application.
1.2.6 Acronyms and Abbreviations. Acronyms and abbreviations are spelled out the first time they are used in this Standard, followed by the acronym or abbreviation in parentheses. The acronym is used thereafter throughout the text.
1.2.7 Units. The International System of Units (SI) is featured in this Standard. It should be understood that U.S. Customary units could equally have been used without prejudice to the principles established.
1.2.8 Figures. The figures in this Standard are intended only as illustrations to aid the user in understanding the practices described in the text. In some cases, figures show a level of detail as needed for emphasis. In other cases, figures are incomplete by intent so as to illustrate a concept or facet thereof. The absence of figure(s) has no bearing on the applicability of the stated requirements or practice. To comply with the requirements of this Standard, actual data sets shall meet the content requirements set forth in the text. To assist the user of this Standard, a list of the paragraph(s) that refer to an illustration appears in the lower right-hand corner of each figure. This list may not be inclusive. The absence of a list is not a reason to assume inapplicability. Some figures are illustrations of models in a three-dimensional (3D) en- vironment. The absence of dimensioning and tolerancing annotations in a view may indicate that the product definition is defined in three dimensions. Dimensions that locate or orient and are not shown are considered basic and shall be queried to determine the intended requirement. When the letter “h” is used in figures for letter heights or for symbol proportions, select the applicable letter height in accordance with ASME Y14.2. Multiview drawings contained within figures are third angle projection.