1、_ SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising there
2、from, is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication m
3、ay be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside U
4、SA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS2431C AEROSPACE MATERIAL SPECIFICATION AMS2431 REV. C Issued 1998-04 Revised 2010-10 Super
5、seding AMS2431B Peening Media General Requirements RATIONALE AMS2431 was issued to ensure the rounding method for reporting data and product acceptance is used in accordance with ASTM E 29. 1. SCOPE 1.1 This specification and its supplementary detail specifications cover the requirements for media t
6、o be used in controlled shot peening of metal parts. 1.2 Reference to AMS2431 with the appropriate slash number on a purchase order constitutes a requirement to conform to the applicable specification in 2.1. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the p
7、urchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last publis
8、hed issue of that document shall apply. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS2431/1 Peening Media (ASR), Cast Steel Shot, Regular Hardness (45
9、 to 52 HRC) AMS2431/2 Peening Media (ASH), Cast Steel Shot, High Hardness (55 to 62 HRC) AMS2431/3 Peening Media (AWCR), Conditioned Carbon Steel Cut Wire Shot, Regular Hardness (45 to 52 HRC) AMS2431/4 Peening Media (AWS), Conditioned Stainless Steel Cut Wire Shot AMS2431/5 Peening Media, APB Case
10、Hardened Steel Peening Balls AMS2431/6 Peening Media, APB Glass Shot AMS2431/7 Peening Media, AZB Ceramic Shot AMS2431/8 Peening Media (AWCH), Conditioned Carbon Steel Cut Wire Shot, High Hardness (55 to 62 HRC) SAE J441 Cut Wire Shot SAE AMS2431C Page 2 of 5 SAE J444 Cast Shot and Grit Size Specifi
11、cations for Peening and Cleaning SAE J445 Metallic Shot and Grit Mechanical Testing SAE J827 High-Carbon Cast-Steel Shot SAE J1173 Size Classification and Characteristics of Glass Beads for Peening SAE J1830 Size Classification and Characteristics of Ceramic Shot for Peening 2.2 ASTM Publications Av
12、ailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM E 29 Using Significant Digits in Test Data to Determine Conformance with Specifications ASTM B 214 Sieve Analysis of Granular Metal Powders ASTM C 169 Chemic
13、al Analysis of Soda-Lime and Borosilicate Glass ASTM E 11 Wire-Cloth Sieves for Testing Purposes ASTM E 18 Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials ASTM E 140 Hardness Conversion Tables for Metals (Relationship Between Brinell Hardness, Vickers Hardness, Rockwell Har
14、dness, Rockwell Superficial Hardness, and Knoop Hardness) ASTM E 350 Chemical Analysis of Carbon Steel, Low-Alloy Steel, Silicon Electrical Steel, Ingot Iron, and Wrought Iron ASTM E 353 Chemical Analysis of Stainless, Heat-Resisting, Maraging, and Other Similar Chromium-Nickel-Iron Alloys ASTM E 38
15、4 Microhardness of Materials 3. TECHNICAL REQUIREMENTS 3.1 Detail Specification The requirements for a specific product shall consist of all requirements specified herein in addition to requirements specified in the applicable detail specification. In case of conflict between requirements of this ba
16、sic specification and the applicable detail specification, requirements of the detail specification shall govern. 3.2 Quality Peening media, as received by purchaser, shall be uniform in quality and condition, clean, and free from foreign materials and from imperfections detrimental to usage of the
17、peening media. 3.3 Test Methods 3.3.1 Composition shall be determined in accordance with ASTM C 169, ASTM E 350, or ASTM E 353. 3.3.2 Hardness shall be determined in accordance with ASTM E 18 or ASTM E 384 for metallic shot and as described in the applicable detail specification for nonmetallic peen
18、ing media. Conversion to Rockwell C values shall be in accordance with ASTM E 140. SAE AMS2431C Page 3 of 5 3.3.3 Quality shall be determined visually and in accordance with the applicable detail specification(s). 3.3.4 Size shall be determined in accordance with ASTM E 11, ASTM B 214, and the appli
19、cable detail specification. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The supplier of peening media shall supply all samples for suppliers tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample and to perform any confi
20、rmatory testing deemed necessary to ensure that the peening media conforms to specified requirements. 4.2 Classification of Tests All technical requirements are acceptance tests and shall be performed on each lot. 4.3 Sampling for testing shall be in accordance with the applicable detail specificati
21、on; a lot shall consist of peening media of the same nominal alloy or composition, condition, size, and hardness. If production is continuous, a lot shall be the product of not more than eight hours. Alternatively, Statistical Process Control methods may be used to monitor the quality of the product
22、 so that it meets the requirements of the applicable detail specification. 4.4 Reports The supplier of peening media shall furnish with each shipment a report stating that the media conforms to the size distribution, number of marginal/defective shapes, density, chemical composition, hardness, and o
23、ther technical requirements and the applicable detail specification. This report shall include the purchase order number, lot number, code letters, size, quantity, and AMS2431C, including the applicable detail specification number. For purposes of determining conformance with this specification and
24、those listed in 2.1, an observed value or a calculated value shall be rounded “to the nearest unit” in the last right-hand digit used in expressing the specification maximum or minimum limit in accordance with the rounding method of ASTM E 29. 4.5 Records All manufacturing records and all records of
25、 testing and inspection shall be retained and available for inspection for not less than two years after manufacture. The records shall contain all data, including statistical process control reports, necessary to verify conformance to the requirements of this specification and the applicable detail
26、 specification. 5. PREPARATION FOR DELIVERY 5.1 Identification Each container of peening media shall be permanently and legibly marked with not less than the following information: Manufacturer and address Description of peening media (cast steel, cut wire, etc) Peening media hardness, if applicable
27、 (equivalent HRC for steel shot) Specification number, code, and size Lot number Example of line 4: “AMS2431/1C - ASR170” (See Table 1). SAE AMS2431C Page 4 of 5 TABLE 1 - PEENING MEDIA AND IDENTIFICATION CODES Specification Description Code AMS2431/1 AMS2431/2 AMS2431/3 AMS2431/4 AMS2431/5 AMS2431/
28、6 AMS2431/7 AMS2431/8 Cast Steel Shot, Regular Hardness (45 to 52 HRC) Cast Steel Shot, High Hardness (55 to 62 HRC) Conditioned Carbon Steel Cut Wire Shot, Regular Hardness (45 to 52 HRC) Conditioned Stainless Steel Cut Wire Shot Peening Balls Glass Shot Ceramic Shot Conditioned Carbon Steel Cut Wi
29、re Shot, High Hardness (55 to 62 HRC) ASR ASH AWCR AWS APB AGB AZB AWCH 5.2 Packaging Peening media shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the peening m
30、edia to ensure carrier acceptance and safe delivery. 5.2.1 Packaging containers shall be tightly sealed and impermeable to moisture to prevent deterioration of product. 6. ACKNOWLEDGMENT A supplier shall mention this specification number and its revision letter in all quotations and when acknowledgi
31、ng purchase orders. 7. REJECTIONS Peening media not conforming to this specification or the applicable detail specification, or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 A change bar (l) located in the left margin is for the convenience of the user in locat
32、ing areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications,
33、nor in documents that contain editorial changes only. 8.2 Terms used in AMS are clarified in ARP1917 and as follows: 8.2.1 Parts Finished or semifinished metal parts. 8.2.2 Peening Media Spherical or quasi-spherical material used in the controlled shot peening process. See Table 1 for descriptions,
34、specifications, and codes. 8.2.3 Cognizant Engineering Organization is the term applied to the engineering organization responsible for the design of the parts or a designee of this organization. 8.3 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimension
35、s and properties in SI units and the Celsius temperatures are shown as the approximate equivalents of the primary units and are presented only for information. SAE AMS2431C Page 5 of 5 8.4 Durability and Transmitted Peening Energy Testing in accordance with SAE J445 is recommended as a means of comp
36、aring the quality of peening media. Durability should be measured by the number of cycles required for 100% replacement (by weight). Transmitted peening energy can be determined from the test strip arc height after exposure to 40 cycles. Manufacturers of peening media should furnish results of such
37、test for their media. 8.5 Purchase documents should specify not less than the following: AMS2431C Quantity of product required Size of container Type of media with applicable slash number (See Table 1) Size of media. 8.6 Similar Specifications This specification used in conjunction with the detail s
38、pecification for the media in Table 1 meets or exceeds the minimum technical requirements of MIL-G-9954, MIL-S-851, MIL-S-13165, SAE J441, SAE J444, SAE J827, SAE J1173, and SAE J1830. In areas of disagreement, the requirements of this specification shall govern. PREPARED BY AMS COMMITTEE “B” AND AMEC-SE
