ASD-STAN PREN 2858-1-1993 Aerospace Series Titanium and Titanium Alloys Forging Stock and Forgings Technical Specification Part 1 - General Requirements (Edition 1)《航空航天系列 钛和钛合金锻坯和.pdf
《ASD-STAN PREN 2858-1-1993 Aerospace Series Titanium and Titanium Alloys Forging Stock and Forgings Technical Specification Part 1 - General Requirements (Edition 1)《航空航天系列 钛和钛合金锻坯和.pdf》由会员分享,可在线阅读,更多相关《ASD-STAN PREN 2858-1-1993 Aerospace Series Titanium and Titanium Alloys Forging Stock and Forgings Technical Specification Part 1 - General Requirements (Edition 1)《航空航天系列 钛和钛合金锻坯和.pdf(9页珍藏版)》请在麦多课文档分享上搜索。
1、CEN PRENt2858 PART*L 93 3404589 0044593 Bbb Approved by COMITE DE NORMALISATION of A.E.C.M.A. 1993-04-26 A.E.C.M.A. STANDARD NORME A.E.C.M.A. A.E.C.M.A. NORM The equivalent verrions in French and German languages can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau 921 38 IS
2、SY - LEC - MOULINEAUX CEDEX prEN 2858 Part 1 Edition 1 April 1993 EDITE PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL AEROSPATIAL Technopolis - 175, rue Jean-JacquesRousseau - F-92138 Issy-les-Moulineaux Cedex - Tl. (1) 47.36.98.76 UDC : Key words : ENGLISH VERSION Aerospace series Titan
3、ium and titanium alloys Forging stock and forgings Technical specification Part 1 - General requirements Srie arospatiale Titane et alliages de titane Produits destins la forge, pices forges et pices matrices Spcification technique Partie 1 - Exigences gnrales Luft- und Raumfahrt Titan und Titanlegi
4、erungen Schmiedevormaterial und Schmiedestcke Technische Lieferbedingungen Teil 1 - Allgemeine Anforderungen This “Aerospace series“ standard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on yell0 w paper in three
5、 equivalent versions (English, French, German). It will be submitted as a draft European Standard to CEN (European Committee for Standardization) for final vote. I I 0 axma 1993 CEN PRENx2858 PART*L 93 3404589 0044594 7T2 ptEN 2858-1 Page 2 1 2 3 4 5 6 7 a 9 10 11 12 13 Contents list Scope Normative
6、 references Definitions Quality assurance Manufacture Traceability Freedom from defects Testing Marking Acceptance Inspection and test report Packaging Wording of orders CEN PRENr2858 PARTxL 93 = 3404589 0044595 639 prEN 2858-1 Page 3 1 Scope This standard defines the general requirements for manufa
7、cture, inspection and testing of forging stock, hand forgings including forged blocks and rings 1, die forgings and rolled rings in titanium and titanium alloy. The specific requirements are defined in EN 2858-2 and EN 2858-3. The standards EN 2858-1, EN 2858-2 and EN 2858-3 define the inspection le
8、vel and the sampling frequencies to be applied unless otherwise specified on the drawing, order or inspection schedule. This standard shall be applied in conjunction with the EN material standards unless otherwise specified on the drawing, order or inspection schedule. By agreement between the manuf
9、acturer and the purchaser, it may also be applied to other materials or delivery conditions not covered by EN standards. The agreement shall be formalized by reference to this standard on the drawing, order or inspection schedule. 2 Normative references EN 2000 EN 2003-10 EN 2078 EN 2858-2 EN 2858-3
10、 EN 2957 Aerospace series - Quality assurance - EN aerospace products - Approval of the quality system of manufacturers Aerospace series - Test methods for products in titanium and titanium alloys - Part 10 - Sampling for determination of hydrogen content in titanium and titanium alloys Manufacturin
11、g schedule - Inspection schedule and inspection report - General definitions - Aerospace series Aerospace series - Titanium and titanium alloys forging stock and forgings - Technical specification - Part 2 - Forging stock Aerospace series - Titanium and titanium alloys forging stock and forgings - T
12、echnical specification - Part 3 - Pre-production and production forgings 3, Aerospace series - Method of preparation of forged samples 4, 1) Hereafter described as forgings 2) In preparation at the date of publication of this standard 3) Published as AECMA Standard at the date of publication of this
13、 standard 4) Published as AECMA Prestandard at the date of publication of this standard CEN PRENL2858 PART*L 93 m 3404589 O044596 575 = prEN 2858-1 Page 4 3 Definitions 3.1 Purchaser Body which purchases the products from a manufacturer or a stockist in accordance with the requirements of the user.
14、NOTE : The purchaser may also be the user. 3.2 User See EN 2000. 3.3 Charge for melting Different products put into a furnace to be melted together. 3.4 Cast Mass of metal from the same final melting operation. 3.5 Campaign A continuous production sequence using the same equipment without alteration
15、 to the operating conditions. 3.6 Batch A batch consists of forging stock or forgings : - of the same form and nominal dimensions or having the same drawing or part number, - from the same cast; - from the same forging campaign; - in the same heat treatment condition; - from the same heat treatment
16、charge which shall be defined in the internal documentation of the manufacturer. 3.7 Pre-production forgings Forgings produced to a particular design which qualify the method of manufacture, equipment configuration and, if appropriate, the forging stock source, which demonstrate that the requirement
17、s of the purchaser can be met. 3.8 Inspection schedule See EN 2078. 3.9 Manufacturing schedule See EN 2078. 3.1 O Inspection report See EN 2078. CEN PRENr2858 PART*l 93 W 3404589 0044597 401 W Selected temperature OC 600 6000 1100 prEN 2858-1 Page 5 Tolerances OC I5 i 10 3.1 i “Capability clause“ Re
18、ference to “capability clause“ signifies that sufficient evidence of a statistical nature with respect to the properties under consideration can be submitted to show that the requirements of the relevant standard may be met on the basis of a reduced amount of testing. Such action in no way reduces t
19、he obligations of the manufacturer to fulfill all requirements. If subsequent testing indicates that a product does not comply with the requirements, the batch shall be rejected. 4 Quality assurance 4.1 Approval of the quality system of manufacturers See EN 2000. 4.2 Product qualification See materi
20、al standard. 5 Manufacture 5.1 Forgings shall be made from forging stock complying with the relevant material standard and with EN 2858-2. 5.2 Unless otherwise specified, the method of manufacture to be employed shall be at the discretion of the manufacturer. 5.3 If required, a manufacturing schedul
21、e shall be established and agreed for forging stock and forgings. After qualification of the forging stock and/or pre-production forgings no change in the manufacturing method shall be made without previous written approval of the purchaser. 5.4 The forging stock and forgings shall be supplied in th
22、e heat treatment condition specified in the material standard. If otherwise agreed, or if there is more than one heat treatment condition in the material standard, the condition of supply shall be specified on the order or on the drawing. If a specific heat treatment temperature (value and tolerance
23、) is stated, that temperature shall be mandatory. If a temperature range is stated, a temperature within that range reduced by the furnace tolerances shall be selected. Unless otherwise specified, the charge shall be maintained at the temperature subject to the tolerances in the table 1 for the peri
24、od stated. Table 1 6 Traceability Each product shall be identifiable to its batch at all stages of manufacture and delivery. prciv LOQO- I rage u 7 Freedom from defects All products shall be free from irregularities not complying with the requirements of the material standard or the order, or prejud
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