1、MIL-DTL-45225F m 9Ob 2064053 b37 m MIL-DTL-4 522 5F (MR) 22 April 1998 SUPERSEDING MIL-A-45225E (M) 30 January 1987 DETAIL SPECIFICATION ALUMINUM ALLOY ARMOR, FORGED This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specific
2、ation covers forged aluminum alloy armor, die forgings from 3/4 inch up to and including 3 inches in thickness for type I, class A forgings, and from 3/4 inch up to and including 4 inches for type I, class B forgings. Type II forging thicknesses should be as specified (see 6.2). 1.2 Classification.
3、Forgings furnished under this specification are furnished in one of the following types and classes. Type I - Weldable forgings Class A - Non-heat treatable Alloy 5083 Alloy 5456 Class B - Heat treatable Alloy 7039 Al-Zn-Mg Type II - Non-weldable forgings Beneficial comments (recommendations, additi
4、ons, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Director, US Army Research Laboratory, Weapons and Materials Research Directorate, ATTN: AMSRL-WM-M, Aberdeen Proving Ground, MD 21005-5069 by using the Standardization Document Improvement
5、Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A AREA FORG Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-DTL-45225F m 9999906 2064054 573 m MIL-DTL-45225F (MR) 2. APPLICABLE DOCUMENTS 2.1 General. The documen
6、ts listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents in other sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, docum
7、ent users are cautioned that they must meet all specified requirements documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following standard forms a part of this document to the exte
8、nt specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). STANDARDS DEPARTMENT OF DEFENSE MIL-STD-662 - V50 Ball
9、istic Test For Armor (Unless otherwise indicated, copies of the standard listed above are available from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 Non-Government publications. The following documents form a part of this document to th
10、e extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS are the issues of the documents cited in the so
11、licitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) B557 Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products E34 Chemical Analysis of Aluminum and Aluminum-Base Alloys E227 Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to
12、 Plane-Technique E607 Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by the Point-to-Plane Technique, Nitrogen Atmosphere E716 Sampling Aluminum and Aluminum Alloys for Spectrochemical Analysis E1251 Optical Emission Spectrometric Analysis of Aluminum and Aluminum Alloys by
13、the Argon Atmosphere, Point.-to-Plane, Unipolar Self-Initiating Capacitor Discharge (Application for copies should be addressed to the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-29591. 2.4 Order of precedence. In the event of a conflict between the
14、 text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted with
15、out license from IHS-,-,-MIL-DTL-45225F 9999906 20b4055 40T W MIL-DTL-45225F (MR) 3. REQUIREMENTS 3.1 First article. When specified in the contract or purchase order (see 6.2) and before production has commenced, samples of the specified item shall be made available to the contracting officer or his
16、 authorized representative for approval in accordance with 4.3.1. The approval of the first article samples authorizes the commencement of production but does not relieve the supplier of responsibility for compliance with all applicable provisions of this specification. The first article samples and
17、 test forgings shall be manufactured by the process proposed for use on production. 3.2 Chemical composition. Chemical composition of type I forgings shall be within the limits shown in table I. Type II material shall be as specified in the contract or on the drawings. 3.3 Mechanical properties. Unl
18、ess otherwise specified (see 6.21, the mechanical properties of type I forgings shall meet the requirements of table II, when tests are conducted as specified in 4.8.2. Type II forgings shall meet the mechanical property requirements specified in the contract or on the drawing. If mechanical propert
19、ies different from the values shown in table II or any other properties are required, the ballistic requirements must then be negotiated (see 3.4). 3.4 Ballistic requirements. Each ballistic test forging shall be proof fired for resistance to penetration by determining a ballistic limit protection,
20、BL(P), at Oo obliquity. The minimum required ballistic limit for type I, class A material shall be determined from the values shown in tables V, VI, VI1 and VIII. The minimum required ballistic limit for type I, class B material, and type II materials shall be determined from the values shown in tab
21、les IX, X, XI, XII and XIII. In those cases where the BL(P) is within 2 10 fps of the minimum required value for the measured average thickness (to the nearest 0.005 inch), an interpolation of the appropriate table will be performed. The average plate thickness, computed to the nearest 0.001 inch, w
22、ill be used to determine the minimum required ballistic limit. 3.5 Thermal processing, type I. 3.5.1 Class A. After final strain hardening performed during the forging process, any thermal processing exceeding 200F performed on the forging, excluding fabrication by welding, will necessitate re-verif
23、ication for conformance with 3.3 and 3.4. Deviation from this requirement shall be subject to review and approval by the procuring activity. 3.5.2 Class B. Heat treatment shall be such that the material shall meet the requirements of this specification. 3.6 Dimensional tolerances. The forgings shall
24、 conform to the shape and dimensions specified on the drawings within any variations stated herein. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- JJ E al u u al - c O -4 U -4 U o rf ta U d c u c I c u al. ax u 81 m I o rl O - E O0 Lle H* O ii cz
25、 Lo rl O m O O I O nr O In* NX og roo ON O0 I Ptn *ln 1 O roo 04 O rl O NI NI W Lo .Fp y MIL-DTL-45225F 9999906 2064056 346 = ii cz in ri O in O O I O d O I rom ow I roa O0 Y? I om cum I O0 rlv O0 O rl O O v O O Fi O Q) o O I- a cz In rl O ro O O O N O O d O I roo om I com O0 9. I OQ) cum I O0 dI- O
26、0 O rl O O e O O Fi O r“ E N I rl 4 d E -cl X E U c al u Ll al a O w O E O Li d 2 m 1 d X 1 JJ E al V u al a ro cu O c O V -4 4 -4 rn Pw O0 Finr mm O0 NO vw 44 UV cc -4 -4 O0 O0 O0 mm O0 U4J rom PP O0 cc o 4 id cal sal JJ rlm mc cm ou dB ZZ 4 m ,in Hd 4 u i E a* O0 mm v* O0 I-v rom rfrf UV cc -44 O0
27、 O0 O0 * O0 uu O0 inm LIP O0 -. 4 IQ cal -4ln au sal. us 4n mic Eid ou dl3 m m m m 4 u n o) 0J n :I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-DTL-45225F = 9999906 2064057 282 MIL-DTL-45225F (MR) 3.7 Marking for identification. Each forging
28、 shall be marked in at least one location in characters not less than 3/8 inch high with the following information. by the drawing. Impression stamping shall not be used, except in areas designated a. Manufacturers name, trademark or both. b. Number of this specification. c. Type, class, alloy desig
29、nation, and temper. d. e. Lot number. Army part or drawing number. 3.7.1 Ballistic test forgings. First article and acceptance and ballistic test forgings shall be marked with the information in 3.7. In addition, first article forgings shall be marked “PRE“ and acceptance test forgings marked “ACC“.
30、 marking shall be impression stamped in at least two opposing locations in letters not less than 1/2-inch high. This 3.8 Information required on ballistic test forgings. Unless otherwise specified in the contract or purchase order, a ballistic test report shall be submitted with each ballistic test
31、plate or forging containing the information as specified in MIL-STD-662. 3.9 Workmanship. The forgings shall be uniform in quality and free from blisters, fins, seams, laps, and cracks. 4. VERIFICATION 4.1 Clarification of inspections. The inspection requirements specified herein are classified as c
32、onformance inspection (see 4.2). 4.2 Conformance inspection. Test for acceptance of individual lots consist of testing all requirements specified in section 3. Verification conformance inspection is in accordance with the provisions herein. 4.2.1 Government test activity. Ballistic tests shall be pe
33、rformed at a government test activity selected by the procuring activity (see 6.2). 4.3 Classification of inspection. Inspection shall be classified as follows: a. First article inspection. b. Conformance inspection (acceptance). 4.3.1 First article inspection. First article inspection shall consist
34、 of the following: a. Chemical analysis (see 3.2 and 4.7.3). b. Mechanical properties (see 3.3 and 4.8.2). c. Ballistic tests (see 3.4 and 4.8.3). d. Dimensions (see 3.6 and 4.6.2). e. Identification marking (see 3.7 and 4.6.1). f. Workmanship (see 3.9 and 4.6.1). 4.3.2 Conformance (acceptance) insp
35、ection. Lot acceptance inspection shall consist of the following: a. b. d. e. C. Chemical analysis (see 3.2 and 4.8.1). Mechanical properties (see 3.3 and 4.8.2). Ballistic tests (see 3.4 and 4.8.3). Dimensions (see 3.6 and 4.6.2). Identification marking (see 3.7, 3.7.1, and 4.6.1). 5 Provided by IH
36、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-45225F (MR) f. Workmanship (see 3.9 and 4.6.1). g. Preparation for shipment (see 4.6.3 and section 5). 4.3.2.1 Chemical analyses records. When chemical analyses records are in compliance with 4.5.2.1, certifi
37、cation to the alloy chemical limits of table I is acceptable. 4.4 - Lot. A lot shall consist of forgings of the same shape, alloy and processing submitted for inspection as a unit, provided that the lot does not exceed 25,000 pounds or 300 forgings, whichever is less. 4.5 Sampling. 4.5.1 First artic
38、le testing. At least three sample forgings shall be submitted for ballistic and mechanical testing. If the forging size is too small for removal of tensile test specimens from the ballistic sample, three additional forgings shall be furnished. 4.5.1.1 Chemical composition. For type I forgings, a cer
39、tification of compliance with the limits shown in table I shall be furnished with the test forgings. For type II forgings, a certification of compliance with the chemical composition limits stated in the contract shall be furnished with the test forgings. 4.5.1.2 Mechanical properties. One longitudi
40、nal and one transverse tension test specimen shall be removed from each forging. If size permits, this may be the same forging that is used for ballistic tests. Location and type of specimens shall be as specified in 4.7.4. 4.5.1.3 Ballistic tests. For each configuration that the manufacturer has un
41、der contract, three or more forgings shall be submitted for ballistic tests. Prior to submission of the forgings, the tester and the contractor will discuss, using a drawing of the forgings, the ballistic test conditions; namely, forging thickness, impact area and projectile type. The number of forg
42、ings, or forging sections needed for first article ballistic acceptance testing will be determined. Modifications, cutting, welding and bracketing will be determined as needed for test mounting. 4.5.2 Acceptance tests. 4.5.2.1 Chemical compositions, ingot analysis. At least one sample shall be taken
43、 from the molten metal representing one group of ingots poured as a unit from the same source of molten metal. available to the government at the ingot producers facility. 4.5.2.2 Chemical composition, finished product analysis. When sampling has not been made in accordance with 4.5.2.1, one sample
44、shall be taken for each 4,000 pounds or less in each lot in accordance with ASTM E34 and ASTM E716. Complete ingot analysis records shall be 4.5.2.3 Mechanical properties. One forging for tension test shall be selected from each lot. One longitudinal and one transverse tension test specimen shall be
45、 removed from the forging. is used for ballistic tests. If size permits, this may be the same forging that 4.5.2.4 Ballistic tests. From each lot, one forging shall be submitted for ballistic test. (See paragraph 4.5.1.3 for supplementary information). 6 Provided by IHSNot for ResaleNo reproduction
46、or networking permitted without license from IHS-,-,-MIL-DTL-45225F 999990b 2064059 055 - MIL-DTL-45225F (MR) 4.6 Examination. 4.6.1 Visual. with the identification marking (see 3.7) and workmanship (see 3.9) requirements. Each forging shall be carefully examined to determine compliance 4.6.2 Dimens
47、ional. For each acceptance lot, representative forgings shall be selected in accordance with table III and examined to determine compliance with requirements of 3.6. TABLE III. Sampling for dimensional examination. Number of forgings in lot Number of forgings in sample Up to 50, incl. 5 51 to 130, i
48、ncl. 131 to 300, incl. 10 15 4.6.3 Preparation for shipment. Prior to shipment, examination shall be made to determine compliance with section 5. 4.7 Test specimens. 4.7.1 Rejection. Unless otherwise specified (see 6.2) where one or more test specimens fail to meet the requirements of the specificat
49、ion the lot represented by the specimen or specimens shall be subject to rejection. 4.7.2 Retest. agency (see 6.2) and where there is evidence that indicates that the specimen was not representative of the lot of material, and when the detail specification does not otherwise specify, at least two specimens shall be selected to replace each test specimen which failed. All specimens so selected for retest shall meet the requirements of the spec
