1、INCH-POUNDI MIL-C-63292 (AR) AMENDMENT 9 31 October 1995 SUPERSEDING 24 May 1993 -AMENDMENT 8 MILITARY SPECIFICATION CASE, CARTRIDGE, 105MM, M148AlB1 This amendment forms a part of Military Specification MIL-C-63292 (AR), dated 8 February 1980, and is approved for use by the U.S. Army Armament Resea
2、rch, Development and Engineering Center and is available for use by all Departments and Agencies of the Department of Defense. PAGE 1 * 2.1 STANDARDS MILITARY: Add: MIL-STD-410 - DRAWINGS, ARMY: - 9 2 8 04 3 3 9280434 - 9280435 - Non-Destructive Testing Personnel Qualification and Certification.! Ad
3、d : Envelope Drawing, 105MM Cartridge Case, Ultrasonic Inspection. Longitudinal Calibration Standards, 105MM Cartridge Case, Ultrasonic Inspection. Circumferential Calibration Standards, 105MM Cartridge Case, Ultrasonic Inspection.“ Under AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) Add: * I1ANSI/AS
4、QCZ1.4 - Sampling Procedure and Tables for Inspection by Attributes.“ AMSC N/A 1 of 12 FSC 1315 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling Services- MIL-C-63292 (9) 9999906 20149b2 287 H MIL-C-63292 (AR) AMENDMENT 9 PAGE 3 * Add
5、 new paragraph 3.2.1: “3.2.1 Cartridse cases. Cartridge case lots which are to be used in M900 cartridge lots must have satisfactorily passed a sticker test fired at M900 pressures (see 4.5.6.3) in addition to meeting the requirements of this specification. is permitted on cases for the M900 cartrid
6、ge.“ No replating PAGE 4 3.8.1: After “free fromf1 add “.dents, shiny spots, nicks or gouges, wrinkles. . . . 3.8.4: Delete IlNo cartridge case shall have a burr.“ and substitute llBurrs shall be limited to those described in 105mm cartridge case Visual Defect Standards.Ii PAGE 5 4.3.1: Delete ii254
7、*11 and substitute ii262“. Delete li* All samples must meet the requirements for thermal treatment and high stress expansion test as performed in the uncoated state. II PAGE 6 Table I: First article inspection. Delete IICartridse Case - Prior to Coatinqll. Delete “Cartridae Case - After Coatinqll. D
8、elete IIExamination for defects 20 3.1 4 .4.2. ll . Add VJltrasonic inspection 262 3.8.1 4.5.7.1“ . Examination for defects, delete ii25411 and substitute ii26211. PAGE 7 * 4.4.2.a, delete 11MIL-STD-105ff and substitute 11ANSI/ASQCZ1.481. PAGE 8 I) 4.4.2.1: Delete in its entirety and substitute incl
9、uded 4.4.2.1. 2 Licensed by Information Handling ServicesMIL-C-63292 (9) U 99999Ob 20149b3 113 = U ki H b t F i bo c 4 U m O u O U L O .Fi L a I a, bo a .rl L Lj L m u CI a, -v) Ri !U I. !w i; - N m a- . . a a, 2: Cu a, a a, c O z 4 0 D a, 0 c O .I4 D c. m a X a, D v) a, L 0 c w X m .I4 ut .El Licen
10、sed by Information Handling ServicesMIL-C-63292 (AR) AMENDMENT 9 PAGE 10 4.4.2.2: Delete in its entirety and substitute included 4.4.2.2. 4 Licensed by Information Handling ServicesU gl I w b H CI 4 3 U m b E O E a, L a, D u m 5 E a) 4 e 3 al U c (I .d d a V I S O C ri rc 4 - m e I - Licensed by Inf
11、ormation Handling Services21 O1 HI M 8 t nl z Qo C .d a m e a E m c, a P) o c m c, a a, o o m o .d c, o a, u a, W a, e O c O c, O a, a, h a 4 e I 6 (10A) Licensed by Information Handling Services MIL-C-63292 (9) W 7999906 2014967 69 m M 8 t M 0 bo c .4 U m O U L a, 0 6i 4 I a, bo W .d L U t m V CI a
12、, Dc) Cu 1.) v . N . 7 (1OB) Licensed by Information Handling Services MIL-C-63272 (9) 9997706 2034768 7T5 MIL-C-63292 (AR) AMENDMENT 9 PAGE 12 4.4.2.3 : Ma or defect: Delete “None defined“ and add : “101 Cracks and other metal defects (cartridge cases) just prior to packing into carton 100% 3.8.1 V
13、isual“. PAGE 14 4.4.3.1.1: Table II, Defect characteristic 2: Delete: Ilone caliber of the head“ and substitute “12 inches of the base“. Table II, Defect characteristic 3: Delete: Ilone caliber from the head“ and substitute “12 inches from the base“. 4.4.3.1.2 Table III, Defect characteristic 2: Del
14、ete: Ilone caliber of the head“ and substitute “12 inches of the base“. Table III, Defect characteristic 3: Delete: “one caliber from the head“ and substitute “12 inches from the base“. After llProduction lotf1 add (Cases not ultrasonicallv tested) *I. Line 6, delete: IV .provided for the test.“ and
15、 substitute (I. . .tested. Add paragraph 4.4.3.1.3: Ii4. 4.3.1.3 Production lot (Cases ultrasonicallv tested ) . Twenty five cartridge cases from each lot (see 4.4.1), shall be ballistically tested in the excess pressure phase. Results of the test shall be evaluated in accordance with the production
16、 acceptance criteria set forth in Table III. defect characteristics, the acceptance criteria are accept on O defects, reject on 1 defect.“ Except for all 8 Licensed by Information Handling ServicesMIL-C-63292 (9) 7799906 2034969 631 MIL-C-63292 (AR) AMENDMENT 9 PAGE 15 4.5.4: Delete in its entirety
17、and substitute: Il4.5.4 Tension test (information only) . Four cartridge cases from each lot shall be subjected to this test. The test specimens shall be taken from each cartridge case in accordance with the standard position and size of the tensile specimen chart described in Figure 1. The yield st
18、rength, tensile strength and elongation shall be determined in accordance with the procedures prescribed by ASTM-E8. The results shall be recorded for information only.11 PAGE 16 * 4.5.6.1: Last sentence, delete ll.rejection of the lot.“ and substitute Il. testing additional samples in accordance wi
19、th ANSI/ASQCZ1.4, Inspection Level II, 0.40% AQL.“ * Add new paragraphs 4.5.6.3 and 4.5.6.4: “4.5.6.3 Cartridse case sticker test. Ten (10 M900 slugs shall be assembled into cartridge cases which have been loaded with M43 propellant to achieve a resulting pressuri of 86,600 pounds per square inch (
20、si) (the permissible maximum pressure a temperature conditioning unit (TCU) which is maintained at 120F - 5OF for a minimum of 40 hours prior to firing from a ballistically accepted gun tube. The fired cartridge cases must meet the requirements for obturation, soundness, extraction and primer retent
21、ion listed in this specification. This test shall be performed once for each cartridge case lot used. in the assembly of M900 cartridges. Three (3) additional cartridge case samples shall be taken from every lot for replacement of disregards if needed. Uploading of the test rounds during the course
22、of the test should be performed in order to continually achieve 86,600 psi for all test rounds. (PMP) when fired at 120 8 F. The cartridge shall be stored in 9 Licensed by Information Handling ServicesMIL-C-63272 (7) 979990b 201Y970 353 9 MIL-C-63292 (AR) AMENDMENT 9 4.5.6.4 Test evaluation method.
23、Any round that achieves a pressure greater than 86,600 psi and fails the requirements of this specification shall be classified as a disregard. round that achieves a pressure less than 84,000 psi shall also be classified as a disregard unless it fails the requirement of this specification in which c
24、ase it shall be classified as a failure. Any round that achieves a pressure in the range of 84,000 psi to 86,600 psi inclusive shall be considered acceptable unless it fails the requirements of this specification, in which case it shall be classified as a failure. be replaced. Any All rounds that ar
25、e considered as a disregard shall If any round is classified as a failure, then the lot of cases represented by these samples shall not be used for assembly of the M900 cartridge. In the event that there are fewer than 10 valid test points, the lot shall be referred to the governments technical agen
26、cy for disposition.11 4.5.7: Delete and substitute: “4.5.7 Cartridge case cracks and flaw detection. The cartridge case shall be visually examined for cracks, defects and workmanship and shall comply with the requirements of paragraph 3.8 or established visual standards. The visual standards shall b
27、e mutually agreed upon between the government and the contractor. All rejected cases shall be set aside and held for government inspection.I1 4.5.7.1: Delete and substitute: “4.5.7.1 Ultrasonic inmection. Each cartridge case shall be inspected for metal defects using as reject standards drawings 928
28、0434 and 9280435 and equipment satisfying the requirements of drawing 9280433. be approved by the respective technical agency. All cartridge cases accepted by the ultrasonic equipment shall be stamped with a l1UI1. Cartridge cases rejected by the equipment shall be stamped with an llR1l and the reje
29、cted cases subsequently removed. The stamps utilized shall not have sharp corners which will create corrosion. The stamping shall comply with the requirements as stated in cartridge case drawing 10522799. The quantities of cartridge cases inspected and rejected shall be counted and logged for determ
30、ination of the reject rate.“ Deviation from standards must 10 Licensed by Information Handling Services MIL-C-63292 (9) 999990b 2034971 29T A MIL-C-63292 (AR) AMENDMENT 9 Add paragraphs 4.5.7.1.1, 4.5.7.1.2, 4.5.7.1.3 and 4.5.7.2: “4.5.7.1 inspection calibrated, . .l Calibration procedures. The ultr
31、asonic equipment, specified by drawing 9280433, shall be at a minimum, at the beginning, middle and end of an eight hour work shift. standards are not rejected by any of the channels, the contractor must re-calibrate the equipment and re-inspect all accepted cartridge cases ultrasonically inspected
32、since the last acceptable calibration. If for any reason the reject 4.5.7.1.2 Rejection rate - ultrasonic equipment. - When the ultrasonic inspection equipment rejection rate exceeds 5.0 percent for the period between calibrations, the contractor shall check equipment calibration. acceptable, all ca
33、rtridge cases previously accepted by the equipment during this period shall be re-inspected. During re-inspection, if the reject rate exceeds 1.0 percent, all cartridge cases scheduled for re-inspection or accepted by re-inspection shall be placed aside until the cause for the excessive reject rate
34、is determined. determined, disposition of the held cartridge cases shall be at the discretion of the contracting officer. At any time, if the contractor proves that an excessive reject rate is equipment related, he may apply to the contracting officer for re-inspection of those rejected cartridge ca
35、ses found during this time. If the calibration is When tbe cause is 4.5.7.1.3 Ultrasonic euuii3ment - - oDerator qualification. The operators of the contractors equipment for ultrasonic inspections required by this specification shall be certified and qualified “Level 1“. Also, any Set-up, calibrati
36、on or interpretation personnel shall be certified and qualified “Level II“. be as prescribed by MIL-STD-410 and other applicable specifications. 4.5.7.2 Visual inspection. Four power (4x) magnification shall be used in the examination of the exterior surface of the sidewall for a minimum distance of
37、 twelve inches forward of the base (flange). All other surfaces may be examined without magnification. It The qualification and certification criteria shall 4.5.8 First sentence: Delete Il. 8663760 and substitute I .8647040 .I. 11 Licensed by Information Handling Services MIL-C-63292 (9) = 9999906 2
38、034972 L2b MIL-C-63292 (AR) AMENDMENT 9 PAGE 17 4.5.9.1.3: Second sentence: Delete “.prduct. and substitute . . ,produce. . . I. Between “(498.49 MPa)“ and “74,200 psi“. add I. to .I. NOTE: The margins of this Amendment are marked with an asterisk or vertical lines to indicate where changes (additio
39、ns, modifications, corrections, deletions) from the previous amendment were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous amenment. Custodian: Army - AR ? Preparing activity: Army - AR (Project 1315-0099) 12 Licensed by Information Handling Services
