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1、A Reference number ISO 9152:1998(E) INTERNATIONAL STANDARD ISO 9152 First edition 1998-11-01 Aerospace Bolts, with MJ threads, in titanium alloys, strength class 1 100 MPa Procurement specification Aronautique et espace Vis filetage MJ, en alliages de titane, classe de rsistance 1 100 MPa Spcificati
2、on dapprovisionnement Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Shell Global Solutions International B.V./5924979112 Not for Resale, 04/17/2007 11:11:36 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 9152:1
3、998(E) ISO 1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Sta
4、ndardization Case postale 56 CH-1211 Genve 20 Switzerland Internetisoiso.ch Printed in Switzerland ii Contents 1 Scope1 2 Normative references1 3 Terms and definitions .2 4 Quality assurance4 4.1 General.4 4.1.1 Approval of manufacturers.4 4.1.2 Qualification of bolts.4 4.1.3 Acceptance of bolts.4 4
5、.2 Qualification inspection conditions4 4.3 Acceptance inspection conditions .4 4.4 Use of “Statistical process control (SPC)“.5 5 Requirements.5 Annex A (informative) Cross sectional areas and formulae for tensile and tension fatigue loads.21 Annex B (informative) Cross sectional areas and formulae
6、 for double shear loads23 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Shell Global Solutions International B.V./5924979112 Not for Resale, 04/17/2007 11:11:36 MDTNo reproduction or networking permitted without license from IHS -,-,- ISOISO
7、 9152:1998(E) iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a sub
8、ject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (I
9、EC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Intern
10、ational Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 9152 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 4, Aerospace fastener systems. Annexes A and B of this International Standard are for i
11、nformation only. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Shell Global Solutions International B.V./5924979112 Not for Resale, 04/17/2007 11:11:36 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright Inter
12、national Organization for Standardization Provided by IHS under license with ISO Licensee=Shell Global Solutions International B.V./5924979112 Not for Resale, 04/17/2007 11:11:36 MDTNo reproduction or networking permitted without license from IHS -,-,- INTERNATIONAL STANDARD ISOISO 9152:1998(E) 1 Ae
13、rospace Bolts, with MJ threads, in titanium alloys, strength class 1 100 MPa Procurement specification 1 Scope This International Standard specifies the characteristics and quality assurance requirements for MJ threads bolts made in titanium alloy, of strength class 1 100 MPa, for aerospace construc
14、tion. It is applicable whenever it is referenced in a definition document. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revis
15、ions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normat
16、ive document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 2859-1:1989, Sampling procedures for inspection by attributes Part 1: Sampling plans indexed by acceptable quality level (AQL) for lot-by-lot inspection. ISO 3452:1984, Non-des
17、tructive testing Penetrant inspection General principles. ISO 4288:1996, Geometrical Product Specifications (GPS) Surface texture: Profile method Rules and procedures for the assessment of surface texture. ISO 5855-2:1988, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts. ISO 6892:19
18、98, Metallic materials Tensile testing at ambient temperature. ISO 7870:1993, Control charts General guide and introduction. ISO 7961:1994, Aerospace Bolts Test methods. ISO 7966:1993, Acceptance control charts. ISO 8258:1991, Shewhart control charts. ISO 9002:1994, Quality systems Model for quality
19、 assurance in production, installation and servicing. ISO/TR 13425:1995, Guide for the selection of statistical methods in standardization and specification. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Shell Global Solutions International
20、B.V./5924979112 Not for Resale, 04/17/2007 11:11:36 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 9152:1998(E) ISO 2 3 Terms and definitions For the purposes of this International Standard, the following terms and definitions apply. 3.1 production batch quantity of fi
21、nished bolts, manufactured using the same process, from a single material cast (single heat of alloy), having the same number of definition document, same thread and diameter code, heat treated together to the same specified conditions and produced as one continuous run 3.2 inspection lot quantity o
22、f bolts from a single production batch having the same number of definition document 3.3 definition document document specifying directly or indirectly all the requirements for bolts NOTE The definition document may be an International Standard, an in-house standard or a drawing. 3.4 crack rupture i
23、n the material which may extend in any direction and which may be intercrystalline or transcrystalline in character 3.5 seam open surface defect 3.6 lap surface defect caused by folding over metal fins or sharp corners and then rolling or forging them into the surface 3.7 crevice hollow area at thre
24、ad crest 3.8 inclusions non-metallic particles originating from the material manufacturing process NOTE These particles may be isolated or arranged in strings. 3.9 microstructural shearing shear banding V- or U-shaped rippled grain structure immediately below the thread root, or chevron-shaped rippl
25、ed grain structure within the thread crest 3.10 sampling plan plan according to which one or more samples are taken in order to obtain information and to reach a decision, if possible Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Shell Globa
26、l Solutions International B.V./5924979112 Not for Resale, 04/17/2007 11:11:36 MDTNo reproduction or networking permitted without license from IHS -,-,- ISOISO 9152:1998(E) 3 NOTE In this International Standard, each sampling plan defines the number of bolts to be inspected as a function of the size
27、of the batch and the acceptance number number of defective items acceptable (Ac)1). 3.11 simple random sampling sampling of n items from a population of N items in such a way that all possible combinations of n items have the same probability of being chosen 3.12 critical defect defect that, accordi
28、ng to judgement and experience, is likely to result in hazardous or unsafe conditions for individuals using, maintaining, or depending upon the considered product (bolt), or that is likely to prevent performance of the function of a major end item 3.13 major defect defect, other than critical, that
29、is likely to result in a failure or to reduce materially the usability of the considered product (bolt) for its intended purpose 3.14 minor defect defect that is not likely to reduce materially the usability of the considered product (bolt) for its intended purpose, or that represents a departure fr
30、om established specification having little bearing on the effective use or operation of this product 3.15 limiting quality LQ sampling plan quality level which corresponds to a specified and relatively low probability of acceptance NOTE 1 It is the limiting lot quality characteristic that the consum
31、er is willing to accept with a low probability that a lot of this quality would occur. NOTE 2For the purposes of this International Standard, the limiting quality quoted in Table 8 corresponds to a probability of acceptance of 10 %. 3.16 acceptable quality level AQL maximum percent defective (or the
32、 maximum number of defects per hundred units) that, for purposes of sampling inspection, can be considered satisfactory as a process average NOTE Variant: quality level which in a sampling plan corresponds to a specified but relatively high probability of acceptance. 1) Supplementary information tak
33、en from ISO 2859-1. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Shell Global Solutions International B.V./5924979112 Not for Resale, 04/17/2007 11:11:36 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 9152:199
34、8(E) ISO 4 4 Quality assurance 4.1 General 4.1.1 Approval of manufacturers The manufacturer shall conform to the quality assurance and approval procedures defined by ISO 9002. The purpose of these procedures is to ensure that a manufacturer has a quality system and the capability for continuous prod
35、uction of bolts complying with the specified quality requirements. Quality documentation, as specified in ISO 9002, for parts produced in accordance with this International Standard, shall be maintained for a minimum period of 10 years. The approval of the manufacturer shall be granted by the Certif
36、ication Authorities, or their appointed representative, who may be the prime contractor. 4.1.2 Qualification of bolts The purpose of inspections2) is to verify that the design and manufacturing conditions of a bolt enable it to satisfy the requirements of this International Standard. The qualificati
37、on shall be granted by the Certification Authorities in the purchasers country, or their appointed representative, who may be the prime contractor. 4.1.3 Acceptance of bolts The purpose of inspections is to verify, as simply as possible, using a method which is inexpensive, with the uncertainty inhe
38、rent in statistical sampling, that the bolts satisfy the requirements of this International Standard. They shall be carried out by the manufacturer, or under his responsibility. The manufacturer is responsible for the quality of the bolts manufactured. 4.2 Qualification inspection conditions Unless
39、otherwise specified, the inspection shall be carried out on: each type and diameter of bolt; 25 bolts selected from a single inspection lot by simple random sampling. The test programme may possibly be reduced, or the qualification granted, without inspection: any such decision shall be based on the
40、 results obtained on similar types and diameters of bolts provided that the design and manufacturing conditions are identical. The inspections shall be repeated on any bolt if the manufacturing conditions have modified. Table 2 indicates the allocation of bolt sample for the inspections. 4.3 Accepta
41、nce inspection conditions Inspections shall be carried out on each production batch or inspection lot. Bolts from the batch or lot to be inspected shall be selected by simple random sampling. 2) In order to simplify the text the term “inspections“ used in this International Standard also refers to “
42、inspections and tests“. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=Shell Global Solutions International B.V./5924979112 Not for Resale, 04/17/2007 11:11:36 MDTNo reproduction or networking permitted without license from IHS -,-,- ISOISO 9
43、152:1998(E) 5 Each bolt may be submitted to several inspections, provided that none of its characteristics has been altered during any of these inspections. The bolts to be subjected to destructive inspections may be those on which non-destructive inspections have been carried out. If a more stringe
44、nt inspection is deemed necessary, all or part of the qualification inspections may be performed during the acceptance inspections. In this case, the number of bolts submitted is the same as that submitted for qualification inspection. Production batches or inspection lots declared unacceptable afte
45、r the production acceptance inspections shall be submitted for re-inspection only after all the defective units have been removed and/or defects have been corrected. In this case, the attribute(s) which caused the rejection shall be verified using a sample of twice the normal size with the same numb
46、er of defective items acceptable. 4.4 Use of “Statistical process control (SPC)“ When a characteristic is obtained by a controlled statistical process, the manufacturer has the possibility, in order to declare conformity of the characteristic, of refraining from the final systematic sampling provide
47、d for in this International Standard, if he is capable of formally justifying this choice by using ISO/TR 13425 and the standards quoted in it as a basis. This justification will include the following phases: analysis of the products key characteristics; analysis of the risks for each implemented pr
48、ocess; determination of the parameters and/or characteristics to be respected under SPC; determination of the capabilities of each process; drawing up an inspection plan and integration in the manufacturing process; drawing up of routes and control charts (ISO 7966, ISO 7870, ISO 8258); use of control charts for data consolidation; determination of the audits to be run and the control to be carried out to ensure reliability of the device. To be usable in