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    ARMY MIL-PRF-62410 B-2011 TUBE ASSEMBLY METAL SWAGED HYDRAULIC (M1 TANK).pdf

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    ARMY MIL-PRF-62410 B-2011 TUBE ASSEMBLY METAL SWAGED HYDRAULIC (M1 TANK).pdf

    1、 Comments, suggestions, or questions on this document should be addressed to U.S. Army RDECOM, Tank Automotive Research, Development and Engineering Center, ATTN: RDTA-EN/STND/TRANS MS #268, 6501 E. 11 Mile Road, Warren, MI 48397-5000 or emailed to DAMI_STANDARDIZATIONconus.army.mil. Since contact i

    2、nformation can change, you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.daps.dla.mil. AMSC N/A FSC 4710 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. INCH-POUND MIL-PRF-62410B(AT) 1 September 2011 SU

    3、PERSEDING MIL-PRF-62410A(AT) 21 November 1995 PERFORMANCE SPECIFICATION TUBE ASSEMBLY METAL: SWAGED HYDRAULIC, (M1 TANK) This specification is approved for use by the U.S. Army Tank Automotive Research, Development and Engineering Center (TARDEC), Research, Development and Engineering Command (RDECO

    4、M), Department of the Army, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the performance, design, and test requirements for swaged hydraulic tube assemblies which provide hydraulic fluid, under pressure, to vehic

    5、le hydraulic system components. Tube assembly is swaged, separable, flareless type, and threaded one end to allow connection to standard fitting (see 6.2). 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This secti

    6、on does not include documents cited 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, document users are cautioned that they must meet all specified requirements of documents cit

    7、ed in sections 3, 4, or 5 of this specification, whether or not they are listed. 2.2 Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or cont

    8、ract (see 6.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62410B(AT) 2 AMERICAN SOCIETY FOR QUALITY (ASQ) ANSI/ASQ Z1.4 - Sampling Procedures and Tables for Inspection by Attributes (Copies of this document are available from www.asq.or

    9、g or American Society for Quality, 600 North Plankinton Avenue, Milwaukee, WI 53203.) AMERICAN SOCIETY OF MECHANICAL ENGINEERS (ASME) ASME B46.1 - Surface Texture (Surface Roughness, Waviness, and Lay) (Copies of these documents are available online at http:/www.asme.org or from American Society of

    10、Mechanical Engineers, Orders/Inquiries, P.O. Box 2300, Fairfield, NJ 07007-2300.) ASTM INTERNATIONAL ASTM B117 - Standard Practice for Operating Salt Spray (Fog) Testing (Copies of these documents are available from www.astm.org or ASTM International, P.O. Box C700, West Conshohocken, PA 19428-2959.

    11、) SAE INTERNATIONAL SAE AS33514 - Fitting End, Standard Dimension for Flareless Tube Connection and Gasket Seal SAE AS33611 - Tube Bend Radii SAE J514 - Hydraulic Tube Fittings (Copies of these documents are available from www.sae.org or SAE Customer Service, 400 Commonwealth Drive, Warrendale, PA 1

    12、5096-0001.) 2.3 Order of precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between the 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 regulatio

    13、ns unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.2. 3.2 Materials. Materials used shall be in accordance with the manufacturers materials specification for tube

    14、assemblies. The materials shall be capable of meeting all the operational and environmental requirements specified herein (see 4.7.1 and 4.7.2). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62410B(AT) 3 3.2.1 Recycled, recovered, or enviro

    15、nmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs. 3.2.2 Tube. T

    16、he tube shall be a corrosion-resistant material and meet the mechanical properties as specified in Table I (see 4.7.1 and 4.7.2). TABLE I. Mechanical properties of tubing. Nominal outside diameter Nominal wall thickness Ultimate tensile strength Yield strength 0.2 percent offset Elongation min (perc

    17、ent) inch (cm) inch (cm) psi (MPa) psi (MPa) Full section Strip 0.188 and less (0.477) 0.016 and less (0.0406) over 0.016 75,000 (516) 120,000 max (827) 75,000 (516) 105,000 max (723) - - 30,000 min (207) 35 35 - - Over 0.188 thru 0.500 (0.477 thru 1.27) 0.010 and less (0.0254) over 0.010 75,000 (51

    18、6) 115,000 max (792) 75,000 (516) 105,000 max (723) - - 30,000 min (207) 35 35 - - Over 0.500 (1.27) All 75,000 (516) 100,000 max (689) 30,000 min (207) 35 30 3.2.3 Fitting. The fitting shall be of a corrosion-resistant material (see 4.7.1 and 4.7.2). 3.3 Design. 3.3.1 Fitting and tube assembly. The

    19、 fitting and tube assembly dimensions shall be as specified (see 6.2). The fitting configuration shall be in accordance with Figure 2 (see 4.7.2 and 4.7.5). 3.3.2 Fitting attachment. The fitting and the tube shall form a leak proof joint. If swaging is performed, it is recommended that the fittings

    20、be swaged on the tube by applying 5500 pounds per square inch (psi) (38 Megapascals (MPa) hydrostatic pressure on swaging dies (see 4.7.2 and 4.7.6). 3.3.3 Tube insertion length. Before attachment, the length of the tube to be inserted into the fitting shall be in accordance with Table II (see 4.7.2

    21、 and 4.7.7). 3.3.4 Tube bend radii. Unless otherwise specified on the detailed part drawing, all tube bends shall be in accordance with SAE AS33611 (see 4.7.2 and 4.7.8). 3.3.5 Nut. The nut on the separable fitting shall have the same thread and hex size for corresponding tube sizes in accordance wi

    22、th SAE J514 and shall mate with fittings specified in SAE AS33514. The nut shall be captive and swivel freely on the assembly (see 4.7.2 and 4.7.9). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62410B(AT) 4 TABLE II. Tube insertion length.

    23、 Tube size O.D. Tube insertion length Minimum Maximum (inch) (cm) (inch) (cm) (inch) (cm) 1/4 (0.635) 0.615 (1.56) 0.915 (2.32) 3/8 (0.9525) 0.690 (1.75) 0.990 (2.51) 1/2 (1.27) 1.193 (3.03) 1.493 (3.79) 3/4 (1.905) 1.303 (3.31) 1.603 (4.07) 1 (2.54) 1.448 (3.68) 1.748 (4.44) 3.4 Performance. 3.4.1

    24、Leakage. 3.4.1.1 Tube assembly. When mated with appropriately sized fittings (see SAE AS33514), the threaded and swaged assembly shall show no evidence of leakage or permanent deformation when subjected to hydrostatic pressures up to 1650 psig (11.37 MPa) (see 4.7.10). 3.4.2 Proof pressure. The tube

    25、 assembly, when mated with appropriately sized fittings (see SAE AS33514) shall withstand a 3000 psig (20.7 MPa) minimum pressure for not less than 5 minutes. There shall be no evidence of external leakage or permanent deformation (see 4.7.11). 3.4.3 Burst pressure. The tube assembly, when mated wit

    26、h appropriately sized fittings (see SAE AS33514) shall withstand a minimum burst pressure of no less than 6000 psig (41.37 MPa). There shall be no evidence of external leakage or rupture at any pressure below the specified burst pressure. Assemblies used for verification of compliance to the burst p

    27、ressure and endurance requirements shall be indelibly marked to prevent their use in functional systems (see 4.7.12). 3.4.4 Endurance. The tube assembly shall be capable of withstanding 200,000 impulse cycles without leakage or failure. The impulse rate shall be 655 cycles per minute. Each cycle sha

    28、ll consist of a rise from 0 pounds per square inch gage (psig) to surge pressure and back to 0 psig. The peak surge pressure shall be within a range from 2475 psig (17.06 MPa) to 2590 psig (17.85 MPa) (see 4.7.13). 3.4.5 Hydrostatic pressure resistance. Tubing shall be capable of withstanding an int

    29、ernal hydrostatic pressure P, without bulging, leakage, or other defects, except that any diametric permanent set shall be disregarded. Hydrostatic test pressure shall be calculated according to the following formula (see 4.7.14): P = S D2 - d2 D2 + d2 Provided by IHSNot for ResaleNo reproduction or

    30、 networking permitted without license from IHS-,-,-MIL-PRF-62410B(AT) 5 where: P = test pressure in psi (MPa) S = 30,000 psi (206.8 MPa) D = maximum permissible outside diameter (nominal OD plus tolerance), inch (cm) d = maximum permissible inside diameter, inch (cm), (computed as D less twice the m

    31、inimum permissible wall thickness) 3.4.6 Repeated assembly. The separable tube assembly shall be capable of repeated assemblies without leakage or failure utilizing the tightening requirements as specified herein (see 4.7.15). 3.4.6.1 Assembly tightening. Fittings shall be clean at time of assembly,

    32、 do not lubricate. The ferrule, nut, and fitting seat shall be free from foreign materials, burrs, nicks and scratches. Figure 1 provides a visual inspection of the points that shall be in contact prior to final tightening (see 4.7.15). 3.4.7 Environmental conditions. 3.4.7.1 Operating temperature.

    33、The tube assembly shall be capable of withstanding an operating temperature of -652 degrees Fahrenheit (F) (-541 degrees Celsius (C) to +2755 F (+1353 C) for no less than 4 hours and after exposure shall not leak or fail when subjected to a proof pressure test (see 4.7.11, 4.8.2 and 4.8.3). 3.4.8 Co

    34、rrosion-resistance. The tube assembly shall not be damaged nor its performance impaired after exposure to salt fog. After exposure the assembly shall not leak or fail when subjected to the proof pressure test (see 4.9). Provided by IHSNot for ResaleNo reproduction or networking permitted without lic

    35、ense from IHS-,-,-MIL-PRF-62410B(AT) 6 FIGURE 1. Assembly tightening. 3.4.9 Internal cleanliness. The internal tube and fitting surfaces shall meet cleanliness requirements as specified in Table III (see 4.10). TABLE III. Particle cleanliness levels. Level Particle size, m Count per 1 ft2 Count per

    36、0.1 m2 Count per liter 200 15 4189 4520 41890 200 25 1240 1340 12400 200 50 170 184 1700 200 100 16 17.3 160 200 200 1 1.08 10 3.5 Identification marking. Identification marking shall include, as a minimum, the following information permanently marked on the exterior of the tube assembly (see 4.7.2)

    37、: a. Manufacturers identification b. Serial number c. Military part number d. Federal stock number e. Manufacturers part number f. Date of manufacture g. Contract number Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62410B(AT) 7 h. US. 3.6

    38、Workmanship. Workmanship shall be of the quality necessary to produce tube assemblies free from defects which may affect their serviceability or reduce, limit, or compromise performance. Unless a finer finish is specified on drawings, sealing surfaces shall be smooth except that annular tool marks u

    39、p to 100-microinch roughness height rating (RHR), as specified in ASME B46.1, will be acceptable. All other machined and bar stock flats shall be of uniform quality, condition, and shall not exceed 250 RHR (see 4.7.2). 3.7 Parts. Contractor shall supply a list and necessary data for replacement and

    40、spare parts. The contractor shall also assure that parts can be purchased using the contractors product drawing(s) and that the hardware can be built from the drawing package. 4. VERIFICATION 4.1 Classification of inspections. The inspection requirements specified herein are classified as follows: a

    41、. First article inspection (see 4.2) b. Conformance inspections (see 4.3) 4.2 First article inspection. Unless otherwise specified (see 6.2), first article inspection shall be performed on three tube assemblies when a first article sample is required (see 3.1). This inspection shall include the exam

    42、inations of 4.4 (see Table IV and the tests of Table V). TABLE IV. Classification of defects. Category Defect Method of examination Major 101 Incorrect or faulty materials (see 3.2 thru 3.2.3) Visual 102 Dimensions affecting interchangeability, not within tolerance (see 3.3 thru 3.3.5). SIE 1/ 103 C

    43、onstruction not within tolerance (see 3.3 thru 3.3.5). SIE 1/ Minor 201 Dimensions not affecting interchangeability, not within tolerance (see 3.3 thru 3.3.5). SIE 1/ 202 Incorrect or illegible marking (see 3.5). Visual 203 Poor workmanship (see 3.6). Visual 1/ SIE = Standard Inspection Equipment. P

    44、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62410B(AT) 8 TABLE V. Classification of tests. Title Requirement Test First article 1/ Quality conformance Acceptance (100%) Control First article 3.1 4.2 X X Materials 3.2 4.7.1 X X Tube 3.2.2 4

    45、.7.1 X X Fitting 3.2.3 4.7.1 X X Configuration 3.3.1 4.7.5 X X Dimensions 3.3.1 4.7.5 X Fitting attachment 3.3.2 4.7.6 X Tube insertion length 3.3.3 4.7.7 X Tube bend radii 3.3.4 4.7.8 X Nut 3.3.5 4.7.9 X X X Low operating temperature 3.4.7.1 4.8.2 X X X High operating temperature 3.4.7.1 4.8.3 X X

    46、X Corrosion resistance 3.4.8 4.9 X X Internal cleanliness 3.4.9 4.10 X X Leakage 2/ 3.4.1 4.7.10 X X Tube assembly 3.4.1.1 4.7.10 X X Proof pressure 3.4.2 4.7.11 X X Burst pressure 3.4.3 4.7.12 X X Endurance 3.4.4 4.7.13 X X Repeated assembly 3.4.6 4.7.15 X 1/ Place of manufacture. 2/ Leakage test (

    47、see 4.7.10) may be accomplished with proof pressure test (see 4.7.11). 4.2.1 Initial production conditions. Unless otherwise specified (see 6.2), two tube assemblies from the first 100 tube assemblies produced shall be selected for initial production inspection. This inspection shall include the exa

    48、minations of 4.4 (see Table IV and the tests of Table V). 4.3 Conformance inspection. Conformance inspection shall include the examinations of 4.4 and the tests of 4.5 and 4.6. 4.4 Examination. 4.4.1 Sampling. Samples from an inspection lot for conformance inspection shall be selected in accordance

    49、with ANSI/ASQ Z1.4. Each sample selected shall be inspected as specified herein for the defects listed in Table IV. Conformance to a lot shall be accepted when zero (0) defects are found and rejected when one (1) or more defects are found. 4.5 Acceptance tests (100 percent). Each tube assembly shall be subjected to the tests specified in Table V. Failure


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