1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Release No. Release/Revision 2014 01 07 N Status Replace with WSS-M11P28-D R. Harris, NA 1989 12 15 NB00E10013458 Released W. CURTISS/E. REZENDES/M. PERCHARDWP 3948-a Page 1 of 5 ADHESION REQUIREMENTS, ADHESIVE FOR BONDING A
2、CRYLIC ESB-M11P44-A LENSES TO ABS REAR LAMP BODIES NOT TO BE USED FOR NEW DESIGN 1. SCOPE This specification defines the adhesion requirements for an adhesive or an adhesive system suitable for structurally bonding Acrylic to ABS rear lamp assemblies. 2. APPLICATION This specification was released o
3、riginally for materials used to bond ESB-M4D9-A acrylic lens to ESF-M4D236-B ABS body in construction of rear lamp assemblies. 3. REQUIREMENTS 3.1 STATISTICAL PROCESS Suppliers must conform to the requirements of Ford Quality System Standard Q-101, with control charts and process data analyzed accor
4、ding to Ford Continuing Process Control and Process Capability Improvement Manual. Additionally, a Control Plan is required for material source approvals. 3.2 INFRARED SPECTROPHOTOMETRY/THERMAL ANALYSIS Ford Motor Company, at its option, may conduct infrared and/or thermal analysis of material/parts
5、 supplied to this specification. The IR spectra and thermograms established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce IR spectra and thermograms that correspond to the reference standard whe
6、n tested under the same conditions. 3.3 CONDITIONING AND TEST CONDITIONS All test values indicated herein are based on materials conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless o
7、therwise specified. ENGINEERING MATERIAL SPECIFICATION ESB-M11P44-A 3.4 ADHESION STRENGTH - TONGUE AND GROOVE Minimum load specified or substrate breakage greater than 400 N . Normal (Condition for 30 minutes at specified temperature prior to test) 3.4.1 Test at 23 +/- 2 C 1300 N 3.4.2 Test at 82 +/
8、- 1 C 400 N 3.4.3 Test at -29 +/- 1 C 1100 N . Environmental Aging (Condition for 24 h at 23 +/- 2 C after exposure, then test at 23 +/- 2 C) 3.4.4 14 days heat age at 88 +/- 1 C 1300 N 3.4.5 14 days humidity (38 +/- 2 C and 1000 N 95 - 100 % relative humidity - RH) 3.4.6 14 days water immersion at
9、32 +/- 2 C 1000 N 3.4.7 500 h salt spray 800 N (ASTM B 117) 3.4.8 500 h ultraviolet light exposure 1300 N (Equipment described in FLTM BV 7-2) 3.4.9 10 thermal cycles: 1000 N 4 h at 88 +/- 1 C, 4 h at -29 +/- 1 C, 16 h humidity (38 +/- 2 C and 95 - 100 % RH) . TEST METHOD: . The tongue and groove pl
10、aques shall consist of materials identified in para 5.1 and must be molded by an approved source as recommended by Body and Chassis Engineering. . Clean the surfaces to be bonded with a hot, soapy water solution. The soap shall be free-rinsing, similar to that used for glassware. After cleaning, the
11、 plaques are blown dry and aged at 23 +/- 2 C for 24 h to insure dryness. . Dispense an adequate amount of adhesive into the groove plaque. After the appropriate open time for the adhesive being tested, the tongue is inserted into the adhesive filled groove. Remove any excess adhesive. Maintain prop
12、er alignment of the assemblies during cure. ENGINEERING MATERIAL SPECIFICATION ESB-M11P44-A . Test the assemblies at a crosshead speed of 12.7 mm/minute. Note: Proper alignment of the test assembly is critical. Every effort should be made to maintain uniform tension across the bond area. Cleavage an
13、d/or peel of the bond area could yield inaccurate results. . Evaluate a minimum of three assemblies per condition. Report failure mode and peak load in newtons. 3.5 CREEP RESISTANCE No slippage (ASTM D 1780, prepare test samples per para 3.2, apply a 4.5 kg dead weight load to test samples and expos
14、e to 88 +/- 1 C for 24 h) 3.6 COLD SLAM RESISTANCE No cracking, (FLTM BV 1-2, 10 cycles of 6 slams per adhesive or cycle at -29 +/- 2 C, 3 samples min.) cohesive failure . Prepare test assemblies as illustrated in Figure I. Test substrates shall consist of 100 x 250 mm panels identified in para 5.1.
15、 Cure bonded assemblies as indicated by the adhesive manufacturer. . Mechanically attach bonded test assembly to a 0.76 x 300 x 300 mm CRS base panel. Centrally locate test assembly on base panel. . Conduct test as outlined per FLTM BV 1-2 following steps 9, 10 and 11. Position panel in slam fixture
16、 with reinforcement facing inward. Subject each test assembly to 10 cycles of 6 slams per cycle at -29 +/- 2 C. 3.7 REAR LAMP PERFORMANCE REQUIREMENTS Parts assembled with adhesive shall meet all engineering requirements specified by design engineering and as indicated on the appropriate prints. 3.8
17、 FUNCTIONAL APPROVAL Materials being evaluated for initial approval to this specification shall be subjected to a production trial. Functional trial results must be approved by the affected assembly operation and Design Engineering. Results shall be made available to Materials Engineering prior to m
18、aterial approval and release. 3.9 ADDITIONAL REQUIREMENTS Specific requirements for material and/or manufactured parts shall be specified on the engineering drawing, engineering parts specification and/or performance specifications. All critical areas with respect to these properties shall be design
19、ated on the Engineering drawing. ENGINEERING MATERIAL SPECIFICATION ESB-M11P44-A 3.10 SUPPLIERS RESPONSIBILITY All materials supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any change in the properti
20、es, composition, construction, color, processing or labeling of the material originally approved under this specification, whether or not such changes affect the materials ability to meet the specification requirements, the Supplier shall notify Purchasing, Toxicology and the affected Materials Engi
21、neering activity of the proposed changes and obtain the written approval of the Materials Engineering activity. Test data, test samples and a new code identification are to be submitted with the request. Substance restrictions imposed by law, regulations or Ford apply to the materials addressed by t
22、his document. The restrictions are defined in Engineering Material Specification WSS-M99P9999-A1, unless a different suffix (e.g., A2 or A3) is specified on the engineering document for the application. 4. APPROVAL OF MATERIALS Materials defined by this specification must have prior approval by the
23、responsible Materials Engineering activity. Suppliers desiring approval of their materials shall first obtain an expression of interest from the affected Purchasing, Design and Materials Engineering activity. Upon request, the Supplier shall submit to the affected Materials Engineering activity its
24、own laboratory report to the specification (test results, not nominal values), the material designation and code number and test specimens for Ford evaluation. Upon approval, the material will be added to the Engineering Material Approved Source List. 5. GENERAL INFORMATION The material data included herein is for information only and is not a requirement for the supplier. 5.1 SUBSTRATES 5.1.1 Acrylic meeting ESB-M4D9-A nominal 3.2 mm thickness 5.1.2 ABS meeting ESF-M4D236-B nominal 3.2 mm thickness ENGINEERING MATERIAL SPECIFICATION ESB-M11P44-A FIGURE 1 COLD SLAM TEST ASSEMBLY
