ASME Y14.35-2014 pdf – Revision of Engineering Drawings and Associated Documents
ASME Y14.35-2014 pdf – Revision of Engineering Drawings and Associated Documents.
3.10 Digital Data
dit,ital data: data stored on a computer system that employs a displa4’ on which the user and the computer interact to create or alter entities for production of layouts, drawings, numerical control tapes, or other engineering data (ASME Yl4.I(rn).
docur,wnt: a term applicable to the specification. drawing, list, standard, pamphlet, report, and printed, typewritten. or otherwise created information relating to the design procurement, manufacture, testing, or acceptance inspection of items or services (ASME Y14.100).
dnnmg: an engineering document or data set that discloses directly or by reference, by means of graphic or textual presentations, or combinations of both, the physical or functional requirements of an item (ASME Y14.100).
3.13 FIeld of Drawing
field of drawing: the area of the drawing that contains the product definition of an item (ASME Y14.100).
fit: the ability of an item to physically interface or interconnect with or become an integral part of another item.
form: the shape, siic’, dimensions, mass, weight, and other physical parameters that uniquely characterize an item. For software, form denotes the language and media.
function: the action or actions that an item is designed to perform.
obsolete: released information that has been superseded by another revision.
original: the current design activity’s reproducible drawing or data set(s) on which is kept the revision record recognized as official (ASME Y14. 100),
3.19 Product Definition Data Set
product dfinit ion data set: a collection of one or more data file(s) that discloses. directh’ or by reference, by means of graphic or textual presentations, or combinations of both, the physical or functional requirements of an item
rrvissm: changes made to an original drawing or associated document after authorized release that require the revision level to be advanced.
3.21 Revision Authorization Document (RAD)
rrvrsion authorization document (RAD): a document recognized as the authority for making a change to a drawing or associated documentation. Revision authorization documents are frequently identified by terms, such as alteration notice (AN), advance drawing change notice (AOCN), change in design (CID), drawing change notice (DCN), engineering change notice (ECN). engineering change order (ECO). engineering notice (EN), engineenng order (EO), or notice of revision (NOR).
3.22 RevisIon History Block
Revision i-f istorv block: a designated area on the drawing reserved for describing or summarizing reisions to the drawing and for recording certain specifics regarding the revisions.
3.23 Revision Letter
letter: identifies the revision level of the drawing using one, two, or three alpha character(s).
4.2 DImensional Changes
When dimensional changes are made and the product definition is on a computer system, the scale of the feature and the dimensions shall be maintained. When dimensional changes are made and the product definition is on manually prepared origina Is, the scale of 11w feature and the dimensions should be maintained. When not maintained. the practice for dimensions not to scale in ASME Y14.5 shall be used.
4.3 Redrawn Drawings
Depending on the circumstances, drawings may be redrawn either with or without change and shall include the original date and contract number as applicable.
4.3.1 Redrawn Drawing With Change. When a revision warrants redrawing of the drawing, the revision letter next in sequence shall be entered in the REV column of the Revision History block of the new original. The names of the individuals whose signatures appeared in the Title block of the old original and the revisions record, if retained, are entensi on the new original. Enter the notation REDRAWN WITH CHANGE in the DESCRIPTION column of the Revision History block on the new original; accompany this entry with the required entries in accordance with para. IJ. All previous revision symbols and crossed out areas may be omitted, See Fig. 4-1, illustration (a).
4.3.2 Redrawn Drawing Without Change. When a drawing, or a sheet of a drawing. is to be replaced because of less, destruction, or degradation due to age, it may be redrawn without change. The replacement shall duplicate the requirements of the old original that is being replaced. The names of the individuals whose signatures appear in the ‘Title block of the old original and revision record, if retained, are entered on the new original. The notation REDRAWN WITHOUT CHANGE with the signature of those who prepared the repbcement and date shall be entered in the Revinon History block. The advancement of the revision letter is not required. See Fig. 4-1, illustration (b).
4.3.3 Historical Annotations. When a drawing has been redrawn, the old original, If available, shall be marked as follows: The notation REPLACED (WITH or WITHOUT) CHANGE IIY REV IEnfrr the nision let frr of the drawm or if no revision blank or enter a – (dash) or an A” in accordance with para .5.11 shall be entered in the DESCRIPTION column of the superseded drawing. The notation SUPERSEDED shall be placed as near to the Title block as possible. in 0.25 in. minimum high letters. Alternatively, other procedures may be used to remove superseded drawings from active status.