ISO-8591-1-1989.pdf
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1、INTERNATIONAL : STANDARD IS0 8591-l First edition 1989-12-15 ANSI hte1nat l3.x sA Aerospace - Wrought aluminium and aluminium alloys - Inspection, testing and supply requirements - Part 1: General requirements Ahronautique et espace - Aluminium et alliages d aiuminium corroyhs - Exigences de contrel
2、e, d essai et de livraison - Partie 7: Exigences g to determine the requirements for a specific material, it is necessary to use, in conjunction with this part of IS0 8591, the material standard and the relevant part of IS0 8591 appropriate for the form of wrought aluminium alloy in question. 2 Defi
3、nitions For the purposes of IS0 8591 (and any future International Standards specifying material requirements), the following definitions apply. 2.1 General terms 2.1.1 heat: Metal from the same melt in a furnace or crucible or from several melts mixed in the same furnace or crucible before pouring.
4、 If a continuous melting process is used, a “heat” is defined as metal taken from the furnace before the next addition to the load. 2.1.2 thickness for heat treatment: The minimum dimen- sion of the heaviest section of the part or material to be treated. 2.1.3 lot: A quantity of material a) of the s
5、ame form; b) of the same nominal dimensions; c) from the same heat; for extruded metal stock and rivet wire, products from two heats, in conformance with the material standard, in which variations in chemical content do not exceed 60 % of the prescribed chemical composition range and in which the ma
6、ximum content of impurities would remain unchanged, may be grouped to form one lot; d) manufactured in the same production run; e) in the same heat treatment condition; f) from the same heat treatment furnace - if a con- tinuous furnace is used for heat treatment, the product of 8 h max., is deemed
7、to constitute a “lot”. A weight limit may also be specified in the relevant part of IS0 8591. 2.1.4 periodic testing : Testing at a frequency, selected by the manufacturer, sufficient to guarantee that all lots of material will meet the requirement. It is preferable that the guarantee be based on st
8、atistical evidence, but other bases for making the guarantee may be ac- ceptable. If testing by the purchaser establishes that the material does not meet the requirement, the material is subject to rejection. 2.1.5 sample: One or more products taken from a lot. 2.1.6 specimen: One or more pieces tak
9、en from each pro- duct in the sample for the purpose of producing test pieces. 2.1.7 test piece: A piece taken from each specimen and suitably prepared for the test. 2.1.8 supplier: The organization which supplies the product to the purchaser. It may not necessarily have made the product. 1 Copyrigh
10、t International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/26/2007 19:44:49 MDTNo reproduction or networking permitted without license from IHS -,-,- Is0 9591-I : 1999 (E) 2.1.9 manufacturer: The organizat
11、ion which makes the material and/or the product in the form and condition in which it is delivered to the purchaser, either directly or through a supplier. 2.1.10 manufacturing schedule: Document recording the processing and production conditions finally chosen for the particular characteristics req
12、uired by the purchaser, or the vital function of a part in service, and to be strictly adhered to. The methods and processes for the manufacture of material are generally left to the discretion of the manufacturer. The manufacturing schedule is and remains the property of the manufacturer, but the p
13、urchaser may have access to and refer to it, subject to the requirements of commercial secrecy. 2.1.11 inspection schedule: Document and/or drawing, approved by both parties, specifying special requirements or purchaser s requirements additional to those specified in the various parts of IS0 8691. 2
14、.1.12 wrought product: A general term for products obtained by hot and/or cold plastic deformation processes, such as extruding, forging, hot rolling, cold rolling or drawing, either exclusively or in combination. Examples of wrought pro- ducts are bar, wire, tube, shape, sheet, strip, forging. 2.2.
15、6 sheet: A flat, rolled product of rectangular cross- section, of uniform thickness and supplied in straight lengths with sheared or sawn edges. Sheet is thicker than foil, with a maximum thickness of 6 mm. 2.2.7 strip: A flat, rolled product of rectangular cross- section, of uniform thickness and s
16、upplied in coils with slit edges. Strip is thicker than foil, with a maximum thickness of 6 mm. 2.2.8 tube: A hollow, wrought product of uniform cross- section with only one enclosed void along its whole length, of uniform wall thickness and supplied either in straight lengths or in coiled form. The
17、 cross-sections are in the shape of circles, ovals, squares, rectangles, equilateral triangles or regular polygons. Hollow products with a square, rectangular, equilateral triangular or regular polygonal cross-section, which may have corners rounded along their whole length, are also to be considere
18、d as tubes, provided that the inner and outer cross-sections are concentric and have the same form and orientation. Bent, threaded, drilled, waisted, expanded and cone-shaped hollow products in this general form when derived from tubes as defined above are classified as tubes. 2.2.9 wire: A solid, w
19、rought product, generally supplied in coils, that is long in relation to its cross-section; the diameter or greatest perpendicular distance between parallel faces (except for flattened wire) of a wire is less than 10 mm. 2.2 Forms of material 3 Requirements 2.2.1 bar: A solid wrought product of unif
20、orm cross-section along its whole length, supplied in straight lengths. The cross- sections are in the shape of circles, ovals, rectangles, equilateral triangles or regular polygons. Products with a square, rectangular, triangular or polygonal cross-section may have corners rounded along their whole
21、 length. 2.2.1.1 rectangular bar: Bar, the thickness of which ex- ceeds one-tenth of the width. The term includes “flattened circles” and “modified rectangles”, of which two opposite sides are convex arcs, the other two sides being straight, of equal length and parallel. 2.2.2 foil: A flat, rolled p
22、roduct of rectangular cross-section with uniform thickness. Foil is thinner than sheet or strip. 2.2.3 ingot: A cast form suitable for forging, rolling or ex- truding. 2.2.4 plate: A flat, rolled product of rectangular cross- section, of uniform thickness greater than 6 mm and supplied in straight l
23、engths with sheared or sawn edges, 2.2.6 shape: A prod b) a description of the wrought product; c) the material dimensions; d) a reference to the drawing and/or i,nspection schedule and/or manufacturing schedule where applicable; e) the nature and type of packaging, if special packaging is required.
24、 I 3.2 Responsibility for inspection 3.2.1 The manufacturer is responsible for ensuring that the in- spection and tests specified are carried out in accordance with requirements. 3.2.2 The manufacturer may use his own or other facilities for carrying out the inspection and tests specified, unless di
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