The price of yearly membership depends on a number of factors, so final price will be calculated during checkout. Guiding Companies Across the Product Development Lifecycle ASME's Y14 standards guide you across the product development process, from concept through to delivery, empowering you to deliver solutions that meet and exceed performance criteria.
Discover Something New As new technologies and innovations emerge, ASME develops and evolves its standards to support new processes, systems and technologies. ASME Y AED-1 Aerospace and Advanced Engineering Drawings Offers symbologies, terminologies and concepts to enhance the understanding and abilities of those who create and use design documentation.
Y14 Categories. Digital Product Definition Access design rules, 3D model requirements, templates, terminology and more used across global industries. Drawing Sheet Size and Format Y Line Conventions and Lettering Y Orthographic and Pictorial Views Y Dimensioning and Tolerancing Y Dimensiones y Tolerancias Y Types and Applications of Engineering Drawings Y Undimensioned Drawings Y Associated Lists Y Engineering Drawing Practices Y Screw Thread Representation Y Casting, Forgings, and Molded Parts Y Product Definition for Composite Parts Y Hogue, U.
In some cases, figures show a level of detail as needed for emphasis. ANSI Y This son Blvd. It includes IPC , Generic Standard on Printing Wiring Board all types of commitments that obligate the procuring Design activity to an expenditure of appropriated funds and that, except as otherwise authorized, are in writing. In Publisher: Institute for Interconnecting and Packaging addition to bilateral instruments, contracts include, but Electronic Circuits IPC , Sanders Road, North- are not limited to, awards and notices of awards; job brook, IL orders or task letters issued under basic ordering SAE AS , Graphic Symbols for Aircraft Hydraulic agreements; letter contracts; orders, such as purchase and Pneumatic Systems orders, under which the contract becomes effective by Publisher: Society of Automotive Engineers SAE , written acceptance or performance; and bilateral con- Commonwealth Drive, Warrendale, PA tract modifications.
This may be the removed, or replaced by an alternate design could cause original design activity or a design activity to which the a degradation in system survivability; hardness dedi- design responsibility has been transferred. Examples of activ- other process or procedure that implements a hardness ity identification include activity name, activity address, design feature and satisfies system hardness require- or CAGE Code.
This includes such fea- master drawing: a document that shows the dimensional tures as the size and arrangement of blocks, notes, lists, limits or grid locations applicable to any or all parts of and revision information and use of optional or supple- mental blocks. This definition includes items created to serve as the official record of the item when whose design is modified to provide for nuclear survivability of the original has been lost.
Observable Critical Process OCP : any fabrication, manu- facturing, assembly, installation, maintenance, and symmetrically opposite parts: those parts that are mirror repair or other process or procedure that implements images of each other. A complete system includes all the official revision record is kept.
The term product power supply, internal combustion engine, electric gen- whenever used in this document shall also encompass erator, radio receiver.
NOTE: The size of an item is a consideration in some cases. An family of products: all products of the same classifica- electric motor for a clock may be considered as a part because it tion, design, construction, material, type, etc.
Their application ings and associated lists. Additional requirements for the preparation of engi- neering drawings that are intended for other than com- 4. Associated lists shall be in accordance with ASME 4. Projection systems and associated symbols shall be in 4. Associated Lists 4.
The application data shall be 4. Graphic symbols, designations, letter symbols, and abbreviations used on engineering drawings and associ- 4. Where graphic symbols, designations, letter 4. When nonstandard graphic symbols, designations, letter sym- 4. Printed board draw- be forwarded to ASME for possible inclusion in the ings shall be in accordance with the requirements of IPC respective standard. D and IPC , as applicable. IPC D Graphic symbols for logic functions shall be in accordance with 4.
Engineering drawings prepared by other than manual 4. Variations from the requirements as specified herein to accommo- 4. Graphic symbols for aircraft hydraulic and pneumatic systems diagrams shall be in Scale expresses the ratio of the object size as drawn accordance with SAE AS Drawings shall be drawn to a scale that depicts all details of the item clearly and accurately, 4. Welding symbols shall be except as noted in para. Drawings should show an A3. When full scale is not practicable, drawings may be prepared to reduced or 4.
Nondestruc- enlarged scale. The scale, or scales, to Graphic symbols for fluid diagrams shall be in accor- which drawings are prepared shall be indicated on the dance with ANSI Y The scale to which the majority of views and 4. Reference designations for the space provided on the drawing. The options for depicting scale, fraction, ratio, or decimal are indicated as examples below. The 4. In the case of diagrams, pictorials, cable assemblies, and tabulated and other 4.
They apply to on the drawing format. Drawings consisting predomi- either a portion of the drawing or to the entire drawing, nantly of textual content need not have an entry in the providing additional treatment, finish, protection, and scale block.
Unless otherwise specified, draw- When required, drawings shall specify marking ings and associated lists shall be in the English language. Notes shall be concise 4. Delineation of item markings on drawings conveying the intended meaning. Certain rials. The following rules shall be applied. This phrase shall ple, the location may be identified by a leader pointing to be used when providing a reference to another docu- a chain line box or the actual information to be marked, ment, or requirement on the drawing, that clearly speci- indicating approximate marking location, or, if neces- fies the exception s.
The information to be 4. Notes shall be located on drawing. When notes are continued 4. Drawings per- beyond a given drawing sheet, information to that effect taining to printed board assemblies shall specify mark- shall be inserted in the next note position of the applica- ing location, content, method, size, material, priority of ble sheet e. The whole of a given document 4. Drawing notes are shall not be made applicable by reference unless all of its pertinent data given in word form and used to comple- provisions are required.
When a portion of a document is ment the delineation of other given data. Drawing notes applicable, the extent of its applicability shall be stated. The However, reference to paragraph numbers in other docu- arrangement of notes shall not be interpreted as an order ments shall not be made.
Reference shall be made to a of precedence, or sequence in manufacturing or assem- method, identified requirement, class, grade, or type. The follow- Reference shall be made only to documents whose tech- ing shall be applicable in the preparation or use of notes: nical accuracy and availability are assured.
Drawing notes may provide the basis for the area or point of application. Local notes are not included special item and process or make direct or parenthetical in the listing of general and flag notes.
Requirements reference to documentation that provides such infor- specified by local notes apply only to the areas or points mation. A flagnote shall be identified with a flagnote methods of payment; and requirements for submission, symbol in accordance with para.
The flagnote approval, or distribution of data, reports, or plans. The flagnote symbol is placed 4. Approval shall be signified in the signature in a table. An approval indicator consecutively as a single listing starting with Note 1.
A Filling in voids open spaces to accommodate deletions signature or approval indicator may be either handwrit- is not required. Note numbers of deleted notes shall not ten or electronically affixed as long as it is unique to be reused. Careful consideration instances that add substantially to drawing clarity. In should be given to the use of flagnotes on intricate or order to differentiate from the item identification cal- cluttered drawings. Flagnote symbols shall not conflict louts, the following format shall be used: with or resemble other symbols used on the drawing.
The title is the name by which the drawing or item Engineering drawings and part lists using bracketed will be known and consists of a basic name and modifier, identification shall carry a note thereon indicating brack- when required, to differentiate like items.
The following rules apply to all titles: NOTE: Documents identified as bracketed information are not a The title shall be as brief as possible, describe the considered referenced documents as defined herein and therefore item, and distinguish between similar items. Modifiers may be used to distinguish between items with the same basic name. The When applicable specifications and standards do not first modifier narrows the concept established by the completely fulfill the design requirements of the item, basic name, and succeeding modifiers continue the engineering drawings may specify the requirements of process.
The measurement system in a single noun is not adequate. It may be necessary for any one drawing or fabrication. For example 4. Preferred Not Preferred 4. For example ity or information systems. Preferred Not Preferred 6. For example, an assembly drawing, , next assembly. In recognition of the fact lar items. For national or industry wide issuing authority, a drawing example number in itself does not establish a unique identity for the drawing. There are dif- This paragraph identifies the minimum essential ferent methods of identifying a design activity.
The requirements for establishing a numbering, coding, and CAGE Code is used by the government and many indus- identification system for application to engineering trial activities for design activity identification. See drawings and associated lists. The original design activity is the owner of the drawing until the design responsibility is transferred to A system of numbering, coding, and identification in another activity.
The design activity whose name widespread use but intended for other than commercial appears in the title block is the original design activity. The original drawing design activity identification shall 6. When design responsibility changes, a transfer of design activity responsibility shall be Drawing numbers consist of numeric, alpha, or special accomplished by adding the current design activity to characters, or combinations thereof. Spaces are not used the drawing in accordance with para.
The Y The drawing numbering 6. A non- Another Activity. When the design responsibility for significant numbering system is preferred. Although there is no activity to another, the drawing number s and PIN s national consensus limitation on drawing number shall be transferred to the new design activity for admin- length, many drawing number systems limit themselves istration.
The design activity identification of the new to 15 characters, including the base number and any assignee shall be added to the first sheet of the drawing required prefixes, suffixes, and separators. When devel- by revision action to identify the change in design oping the drawing number length, requirements for the responsibility. The original drawing identification, limitation of characters for the Part or Identifying Num- which includes the original design activity identifier, ber PIN shall be considered to ensure compatibility.
Figure 1 illustrates an example of drawing nota- tions indicating a transfer of design responsibility. All 6. Special charac- NOTE: Identification of the original design activity specified in ters should be selected in a manner that does not hinder the item identification marking requirement shall not be changed. A widely recognized limitation on PIN number length is c Design activities using items other than their 32 characters.
Prefixes and suffixes d All other items shall be assigned an item identifi- may be used in association with a basic PIN for such cation.
Prefixes and suffixes of a PIN are 6. The combination of the original design activity PIN and activity identification establishes an identification 6. Each item detailed part, assembly, installation, or 6. New PINs software shall be identified as follows: shall be assigned when a part or item is changed in such a An item defined by a standardization document a manner that any of the following conditions occur: shall be identified by the document PIN. Acronyms for Special Items and Processes b When the new version of an item is not inter- Acronym Description changeable with the previous version.
A new PIN shall about the drawing, the list, or items depicted thereon. The number consists of alpha, numeric, or special characters, 7. Additional requirements for markings on drawings 6. The serial 7. Serial num- When items or processes require special notations on bers should be assigned to all functional and major the drawing, relevant drawings shall identify such items, assemblies requiring special tracking.
Acronyms, descriptions, and 6. Version numbers are usually used to identify changes to software. The first digit of a version number reading 7. The appropriate sym- bol s shall also be placed at the line entry of the applica- A data base number may itself be a drawing number, ble item s or process es in the parts list, and shall use or part or cross reference number, that is used to identify the same size lettering as the parts list entries.
When selecting a data base number system, computer system limitations 7. The symbol shall be placed This paragraph establishes requirements for applica- adjacent to the note or dimension s defining the charac- tion of markings on engineering drawings and associ- teristic. For tabulated dimensions or features, the table ated lists.
These markings are used in support of, and shall contain an entry for the applicable symbol. When an item is to be replaced by another existing or new item that pro- 7. The addition of the note constitutes a change; there- tion.
Examples of acronyms associated with such estab- fore, an applicable entry in the revision history block in lished symbologies are shown in Table 1. When all of the 7. When a drawing is see Table 1 and Fig. Revision history block entries shall be in On an assembly drawing, special items or processes accordance with ASME Y Notes that reference a tering height of the drawing title. Drawings and area as follows: parts lists show parts, materials, or methods as substi- tute to permit establishment of alternate sources of sup- Preferred ply, to permit production of parts by alternate methods of manufacture, or to permit fabrication of items with 5.
If parts are identified on the field of the drawing by part number callout, then Alternate substitute parts or assemblies shall be identified directly or by reference, on assembly or installation drawings, 5.
For systems that cannot produce the boxed symbols, and for stan- 7. The same symbology structure shall be used sheets with the appropriate approved legend. Care throughout the drawing or list. On draw- 7. Drawings in book-form need 7. When an item is only delineate the legend on the title sheet. For CAD drawings, refer to para. See Y The revision level shall not be advanced. Duplicates of a production master, made from the original stable base artwork or CAD system, shall be 7.
Marking may Amendments of 42USC a , as identified in be accomplished by use of a label or lettering applied Section of PL The fol- 7. C Fig. The manner and extent of needed Y In addition, the use of other associated practices, be as definitive as possible. Many users will ASME Y14 Standards may require tailoring to meet the have limited need for the detail contained in Nonmanda- needs of both design activities and users of engineering tory Appendices B through E.
Accordingly, consider- drawings. Therefore, Table A-1, a checklist to aid in ation should be given to any application of these tailoring, is provided as a minimum for consideration. Table A-1 Tailoring Checklist A. Information B The detail contained herein is intended to provide visibility of those require- Initial Graphics Exchange Specification IGES : a neutral ments that are in use in other than commercial applica- file format for the representation and transfer of product tions.
Product Appendix and the practices detailed in Sections 1 definition data includes geometry, topology, relation- through 7 of ASME Y The following documents form a part of this Appendix production master: a 1-to-1 scale pattern that is used to to the extent specified herein. The issue in effect shall produce one or more printed boards rigid or flexible be that specified in a solicitation.
Originals on plastic B Undimensioned drawings, printed wiring Delineation of part identification markings on a draw- artwork masters, production masters, and master pat- ing shall be consistent with the requirements of Section tern drawings shall be in accordance with MIL-PRF- 6 of ASME Y Copies on sensitized, diazo- stencil, and materials, e. Engineering drawings prepared by other than manual means such as computer-generated drawings shall B Variations Altered, selected, vendor item, and source control from the requirements as specified herein to accommo- items shall be identified in accordance with MIL-STD- date document preparation will be acceptable so long If originals are maintained as digital data, copies resulting from plotters need not meet the Drawings pertaining to printed board assemblies shall material, erasure, and aging requirements of L-P CODE B Types and applications of engineering drawings shall B Vendor item control drawings, B Reference to major assemblies or end items This Appendix establishes procedures for creating shall not be included as part of the drawing title for titles for engineering drawings and names for items subassemblies and parts except when necessary to dif- detailed thereon as required by other than basic com- ferentiate such items from similar items.
Item names not listed take precedence, when invoked.
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