ARMY MIL-P-50784-1973 PROJECTILE 105MM HE M1 (HF-1) METAL PARTS ASSEMBLY《M1(HF-1)式105毫米榴弹用金属件组件》.pdf

1、FSC 1315 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-50784 (MU) 2.1 (Contd) MIL-STD-1167 MIL-STD-1168 MIL -STD - 116 9 MIL-STD-1235 DRAWINGS - Ammunition Data Card - Lot Numbering of Ammuniton - Packaging, Packing and Marking for Inert - Si

2、ngle and Multilevel Continuous Sampling Procedures Ammunition Components and Tables for Inspection by Attributes Munitions Command D10551942 Fa837835 IEL-10551942 - Projectile, 105MM, HE, M1 (HF-1) Metal Parts - Pallet for 105MM, HE, M1, (HF-l), Projectile Empty - Index to Inspection Equipment List

3、for Projectile, Assembly or Loaded 105W, HE, M1 (HF-l), Metal Parts Assembly PUBLICATIONS Frankford Arsenal Operating Instructions for Use of Detroit Testing Machine for Band Seat Inspection, including Drawing D8593429. 86G8877 - Procedures for Ultrasonic Test (UT) Steel Projectile Bodies, 105MM, HE

4、, M1 and 105MM, HE, M1, (HF-1). (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publications,-The following do

5、cuments form a part of this specification to the extent specified herein, Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. ASA-B46.1 - Surface Texture (Application for copies should be addressed to the American National Standards Ins

6、titute (ANSI), 1430 Broadway, New York, N.Y. l.0018). ASTM Method - American Society for Testing and Materials (Application for copies should be addressed to the American Society for Testing and Material*s, 1916 Race Street, Philadelphia, Pa. 19103). 2 . Provided by IHSNot for ResaleNo reproduction

7、or networking permitted without license from IHS-,-,-MIL-P-5078g 23 U 777770b 0330728 O MIL-P-50784 (MU) 3. REQUIREMENTS 3.1 General.-Materials, parts and assemblies shall comply with the requirements specified on the applicable drawings and referenced specification. 3.2 Steel Quality.-The item cont

8、ractor shall establish procedures to provide a forge quality steel when procuring steel in accordance with MIL-S- 50783(M), i.e., the steel shall be free of pipe, porosity and heavy segregation. The manufacturer will provide a certification to cite the specification under which the steel was manufac

9、tured and specific inspection techniques used to assure compliance with requirements of the specification and the soundness condition stated above. 3.3. Heat treatment.-Heat treatment applied to any component parts shall be uniform throughout and shall be so conducted as to produce in each component

10、 the mechanical properties specified on the applicable drawing. 3.3.1 Hot forge - heat treat method.-Prior to finish machining, projectile bodies shall be subjected to a heat treatment consisting of heating to 1700 F and hold at hear for a minimum time of 1 hour, transfer to a second furnace at a te

11、mperature of 1150 F, hold at 1150 F for a minimum time of 1 hour and air cool. Projectile bodies may be allowed to cool outside the furnace from 1700 F to 1150 F as long as the temperature of the projectiles does not drop below 1150 F. 3.4 Mechanical properties. 3.4.1 Body.-Mechanical properties spe

12、cified on the applicable drawing shall apply throughout the component, 3.4.2 Rotating band.-After application and subsequent removal, the rotating band shall have the following mechanical properties: Tnesile Strength - 30,000 lbs. per square inch (psi) minimum Elongation - 15 percent in one inch min

13、imum 3.5 Banding. 3.5.1 Band seat.-Prior to banding, the band seat shall be clean and free from oil, grease, dirt, rust or other foreign matter. Shot or sandblasting shall not be permitted for cleaning the band seat after knurling. 3.5.2 Band blank.-The rotating band blank shall be in the form of a

14、solid ring, annealed-if necessary to comply with the applicable specification. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-50784 13 W 777770b 0330737 2 MIL-P-50784 (MU) 3.5.3 Application.-The rotating band shall be applied after final hea

15、t treatment of the body, by carefully pressing the band blank into the band seat so as to make contact with the sidewalls for a minimum of eight-tenths of the sidewall depth. The band shall be applied in such manner as not to distort the body wall. There shall be no visible gap between the rotating

16、band and the sidewalls of the band seat (on the outside surface of the projectile) after the rotating band has been machined to final dimension. 3.5.4 Band seating.-The diametrical clearance between the rotating band and band seat shall not exceed .O06 inch when the destructive method of testing isu

17、ed or .O09 inches when the non destructive method of testing is ued. 3.6 Metal Defects 3.6.1 Body.-The body, including the cavity, shall be free from cracks, splits, bursts, cold shuts, pipe, porosity, inclusions, folds, seams and other metal defects. 3.6.2 Body cavity.-The body cavity shall be free

18、 of scale, fins, burrs, draw marks, laminations, imbedded foreign matter, pits and sharp edges. 3.6.3 Visual Standards.-Visual standards for metal defects will be estab- lished for each contract after the first months production, however, the establishment of visual standards will not waive the requ

19、irement for compliance with 3.6.1 and 3.6.2 (see 6.2). 3.7 Proving Ground Functional Test.-The projectile assembly shall reveal no evidence of failure, when tested at excess and service pressure. Metal parts failure shall be: a. Permanent deformation greater than .O10 inches on either the body diame

20、ter or bourrelet diameter of the projectiles. b. Loss or breakup of metal parts components. c. Shear of rotating band as evidenced by complete lack of engraving. 3.8 Workmanship.-The requirements for workmanship are as shown on the applicable drawing, in the applicable specification and the followin

21、g: Surface finish.-The requirements for surface finish are as detailed 3.8.1 on the applicable drawing. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-5078Ll 13 = 7797906 0330920 7 _ - MIL-P-50784 (MU) 3.8.2 Threads.-Threads shall be full an

22、d undamaged for the entire minimum length or depth as specified on the applicable drawing, 3.8.3 applicable drawing. shipment. specification. Paintins.-Painting shall comply with the requirements of the Drying time prior to testing shall be in accordance with the applicable All paint shall be dry to

23、 the touch prior to packing for 3.8.4 Base cover weld.-The weld shall be sound, and the welding operation shall be so controlled that there will be adequate fusion between projectile base and base cover, 3.8.5 - Burr.-No part shall have a burr which might interfere with the assembly or function of t

24、he round or which might be injurious to personnel handling the item, 3.8.6 Foreign matter.40 part or assembly shall contain dirt, grease, chips, rust corrosion or other foreign matter. 3.8.7 Protection of rotating band.-The machined rotating band shall be protected from being nicked, burred and othe

25、rwise damaged in subsequent handling prior to shipment. 3.8.8 Compatibility,-Corrosion preventive compound specified in the applicable drawing shall be compatible with the high explosive filler to be used. Information relative to compatibility can be obtained from the responsible technical agency by

26、 request through the procuring activity. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection.-Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements specified herein. fied facilities suitable for the

27、performance of the inspection requirements speci- fied herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed re

28、quirements. Except as otherwise speci- in the contract or order, the supplier may use his own or any other 4.1.1 guality assurance terms and definitions.-Reference shall be made to MIL-STD-109 to define the quality assurance terms used. 4.1.2 1nspection.-Inspection shall be io accordance with MIL-A-

29、2550, except as specified herein. 4.2 First article sample. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-50784 (MU) 4.2.1 Initial production sample.-At the beginning of regular production, a sample shall be submitted in accordance with con

30、tract requirements and shall consist of sixty-five metal parts as follows: 55 Metal Parts Assemblies, complete, including paint 5 Metal Parts Assemblies, complete, except paint 5 Sets of Component Parts, unpainted, unassembled, including rotating band blanks. including the rotating band seat, The bo

31、dies shall be completely machined, Fifty of the above painted metal parts assemblies shall be forwarded to a designated proving ground for ballistic testing. using the same materials, equipment, processes and procedures as will be used in regular production. All parts and materials, including packag

32、ing and packing, shall be the same as used for regular production and shall be obtained from the same source of supply. as directed by the procuring agency shall also be submitted whenever there is a lapse in production for a period in excess of 90 days, or whenever a change occurs in manufacturing

33、processes, materials used, drawings, specifications or source of supply, such as to significantly affect product uniformity aB determined by the responsible technical agency. The sample shall be manufactured A first article sample or portion thereof, 4.2.1.1 Examination and test.-After inspection an

34、d provisional acceptance at source, the sample shall be inspected for all requirements of the drawings and specifications at a Government laboratory or such other facility specified in the contract. 4.2.1.2 Initial production sample failure.-Failure of the sample to comply with the requirements of t

35、he drawings and specifications shall result in sample disapproval. 4.3 Inspection. 4.3.1 Lot* 4 3.1.1 Submission of produc t. -The product shall be submitted in accordance with MIL-STD-105. 4.3.1.2 Heat treatment lots.-Heat treatment lots shall contain body forgings from not more than one heat of st

36、eel that have been heat treated in the same heat treating equipment, at the same temperature, in one unchanged process. The heat treatment lot thus constituted shall be the basis for the selection of samples for the tension test hereinafter prescribed. 6 i. k Provided by IHSNot for ResaleNo reproduc

37、tion or networking permitted without license from IHS-,-,-MIL-P-50784 23 = 7777706 0330722 2 W MIL-P-50784 (MU) 4.3.1.3 Projectile lots.-When it has been determined that bodies of a heat-treated lot have complied with the mechanical properties requirement of the applicable drawing, they may be regro

38、uped for assembly into projectile lots, to which will be assigned a projectile lot number in accordance with MIL-STD-1168. assemblies produced by one supplier under one contract in one unchanged process, in accordance with the same drawing, same drawing revision, same specification and same specific

39、ation revision, under conditions of continuous production free from interruptions other than those due to the end of a shift, day, or work week. The projectile lot thus constituted shall be the basis for the selection of samples for the functional test hereinafter prescribed. The projectile lot shal

40、l consist of projectile 4.3.2 Examination.-One hundred percent examination shall be performed for all critical defects. Examination for major and minor defects shall be performed on a defect basis in accordance with the classification of defects contained herein, using the sampling plans contained i

41、n MIL-STD-105. An AQL of 0.40 percent for each major defect and an AL of 0.65 percent for each minor defect shall be used. Continuous sampling plans in accordance with MIL-STD-1235 may be used if approved by the procuring activity. All non- conforming material shall be rejected, Four power (4X) magn

42、ification may be used in performing visual inspection for such defects as burr and foreign matter. The roughness comparison specimens prescribed by ASA-B46.1 shall be used as a basis for surface roughness determination. 4.3.2.1 Tool Control Dimensions.-Dimensions marked tool control shall be gaged a

43、t the beginning of each eight hours production or fraction thereof from each machine in operation and prior to any tooling changes. destruction of components is necessary to inspect these dimensions, measure- ments of the tool may be substituted provided the contractor has established correlation be

44、tween the tool dimensions and the component dimensions prior to the start of production. The contractor shall be responsible for maintain- ing adequate surveillance to assure that drawing requirements are being met throughout the life of the tool. inspection will be rejected and screened whenever a

45、defective tool control dimension is found. here All material produced prior to periodic 4.3.2.2 Body, Drawing F10551944, covering a detail of Drawing D10551942 Defect Method of Inspection - - CRITICAL 1. Metal Defective Visual (Probe light) 7 Provided by IHSNot for ResaleNo reproduction or networkin

46、g permitted without license from IHS-,-,-MIL-P-50784 13 m 7777906 0330723 4 U MIL-P-a784 (MU) 4.3.2.2 (Cont d) Defect MAJOR Method of Inspection 101. 102. 103. 104. 105. 106. 107. 108. 109. Diameter of rotating band seat Width of rotating band seat Location of rotating band seat Thickness through ba

47、se Diameter of charge cavity at forward bourrelet location (before nosing) Length from base of cavity to inside basic diameter (before nosing) Depth of scoring Scoring or knurling missing from rotating band seat Foreign matter on rotating band seat Gage Gage Gage Gage Gage Gage Gage Visual Visual MI

48、NOR 201, Evidence of shot or sand blasting on band seat Visual 4.3.2.3 Metal Parts Assembly, Drawing D10551942 (Prior to paint), CRITICAL 1. Metal Defective Visual MAJOR 101. 102. 103. 104. 105. Runout of boattail with bourrelets 106. Diameter of bourrelets, min. 107. Diameter of body. 108. Diameter

49、 of rotating band flat 109. Runout of pitch diameter of fuze thread with bourrelets and front face Runout of ogive with bourrelets Runout of body with bourrelets Runout of rotating band flat with bourrelets Length from front to forward outside basic diameter Gage Gage Gage Gage Gage Gage Gage Gage Gage 110. Length from rear face to forward basic diameter on boatail Gage 111. Length. from rear face to rear basic diameter Gage 112. Var