1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Action Changes1995 08 01 Activated EP00E10460395000 K. GerhardsWP 3948-a Page 1 of 6UNSATURATED POLYESTER (UP), 20 % CONTINUOUS WSK-M3D175-AGLASS FIBRE REINFORCED MOLDING COMPOUND1. SCOPEThe material defined by this specificat
2、ion is 20 % continuous glass fiberreinforced unsaturated polyester (UP) resin transfer molding compound.2. APPLICATIONThis specification was released originally for material used for rearspoiler shells.3. REQUIREMENTS3.1 STATISTICAL PROCESSSuppliers must conform to the requirements of Ford Quality S
3、ystemStandard Q-101. A mutually acceptable Control Plan as describedtherein is required for material/source approval. Appropriatestatistical tools must be used to analyze process/product data sothat variation in the final product is continuously reduced.3.1.1 All requirements of this specification,
4、identified bysymbol (s), shall be met with data representing 3 sigma values.3.2 INFRARED SPECTROPHOTOMETRY, PYROLYTIC GAS CHROMATOGRAPHY AND/ORTHERMAL ANALYSISFord Motor Company, at its option, may conduct infrared, pyrolyticgas chromatography and/or thermal analysis of material/parts suppliedto thi
5、s specification. The IR, PGC spectra and thermogramsestablished for initial approval shall constitute the referencestandard and shall be kept on file at the designated materiallaboratory. All samples shall produce IR spectra and thermogramsthat correspond to the reference standard when tested under
6、the sameconditions.ENGINEERING MATERIAL SPECIFICATIONWSK-M3D175-AWP 3948-b Page 2 of 63.3 CONDITIONING AND TEST CONDITIONSAll test values indicated herein are based on material conditioned ina controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for not less than 24 h prior to testing
7、 and tested under thesame conditions unless otherwise specified.3.4 MOLDED TEST SPECIMEN3.4.1 Preparation of Test SpecimensAll test specimens shall be prepared from cross-ply moldedplaques or equivalent. The plaques are to be manufacturedfrom the same material and under equivalent conditions asprodu
8、ction parts. The plaques shall have the followingdimensions:300 x 300 mm, minimum x 2.5 +/- 0.2 mmPrepared specimens must show no evidence of fiber tear orloose fiber strands protruding from the specimens. Noadditional annealing of specimens is allowed.3.4.2 Density 1.17 - 1.43 g/cm3(ISO 1183, Metho
9、d A)(s) 3.4.3 Filler Content3.4.3.1 Ash Content 40 + 10/- 5 %(ISO 3451/1, Method A,1 h at 650 +/- 25 C)3.4.3.2 Glass Fiber Content,By Weight 15 + 10/- 5 %Test Method: ISO 3451/1, Method B, 1 h at 650 +/-25 C, except use 5 % by volume hydrochloric acidsolution for 15 min. Rinse the glass fiberssevera
10、l times with distilled water before drying inan oven for 2 h at 120 +/- 2 C. After cooling,weigh the crucibles and calculate the percent glassfibers.(s) 3.4.4 Tensile Strength at Break, min 20 MPa(ISO R 527, 150 minimum x 10x 2.5 +/- 0.2 mm specimen,5 mm/min test speed)(s) 3.4.5 Flexural Modulus, mi
11、n 1.5 GPa(ISO 178, 60 x 10 x2.5 +/- 0.2 mm specimen,40 mm support span,2 mm/minute test speed)ENGINEERING MATERIAL SPECIFICATIONWSK-M3D175-AWP 3948-b Page 3 of 6(s) 3.4.6 Flexural Strength, min 50 MPa(ISO 178, 60 x 10 x2.5 +/- 0.2 mm specimen,40 mm support span,2 mm/minute test speed)3.4.7 Shear Mod
12、ulus at 23 C TBD GPa(ASTM D 4065, forced constantamplitude, fixed frequency of 1 Hz+/- 15 %, strain level below 1 %.Specimen approx. 60 x 10 x 2.5 +/-0.2 mm cut from the center of specimen A.Specimen length between clamps 35-40 mm.Soak time at each temperature interval -3 minutes minimum)Additionall
13、y, a Shear Modulus vs. Temperature curve shall beplotted for - 50 to + tbd C temperature range, at 5 Cminimum intervals. The plotted curve must be withintolerance range shown on page 6.(s) 3.4.8 Impact Strength, Izod, min(ISO 180, Method A, 63.5x 12.7 x 2.5 +/- 0.2 mm specimen,10 specimens minimum)3
14、.4.8.1 At 23 +/- 2 C 35 kJ/m23.4.8.2 At - 40 +/- 1 C 30 kJ/m2The test specimens must be conditioned for minimumof 6 h at the above specified temperature prior toimpact test. Low temperature testing shall be donewithin the cold box.(s) 3.4.9 Heat Deflection Temperature, min 80 C(ISO 75, 120 x 10 x 2.
15、5 +/-0.2 mm specimen, 0.32 +/-0.01 mm deflection. At 1.80 MPa)3.4.10 Heat Aging Performance(ISO 188, 150 +/- 50 air changes/h,1000 h at 80 +/- 2 C. Unaged property valuesshall be determined at the time of the agedproperties determination)ENGINEERING MATERIAL SPECIFICATIONWSK-M3D175-AWP 3948-b Page 4
16、 of 63.4.10.1 Tensile Strength at MaxLoad Change +/- 25 %(Test Method per para 3.4.4)3.4.10.2 Flexural Strength Change +/- 25 %(Test Method per para 3.4.6)3.4.10.3 Impact Strength, Izod Change +/- 25 %(Test Method per para 3.4.8.1,specimens to be notched beforeheat aging.3.5 FLAMMABILITY(ISO 3795)Bu
17、rn Rate, max 100 mm/minuteThe specimen size required for material approval is 355 x 100 x 2.5+/- 0.2 mm with a smooth surface.3.6 ADDITIONAL REQUIREMENTSSpecific requirements for material and/or manufactured parts shall bespecified on the Engineering drawing, Engineering parts specificationand/or pe
18、rformance specifications. All critical areas with respectto these properties shall be clearly designated on the Engineeringdrawing.3.7 SUPPLIERS RESPONSIBILITYAll materials supplied to this specification must be equivalent inall characteristics to the material upon which approval wasoriginally grant
19、ed.Prior to making any change in the properties, composition,construction, color, processing or labeling of the materialoriginally approved under this specification, whether or not suchchanges affect the materials ability to meet the specificationrequirements, the Supplier shall notify Purchasing, T
20、oxicology andthe affected Materials Engineering activity of the proposed changesand obtain the written approval of the Materials Engineeringactivity. Test data, test samples and a new code identification areto be submitted with the request.Substance restrictions imposed by law, regulations or Ford,
21、apply tothe materials addressed by this document. The restrictions aredefined in Engineering Material Specification WSS-M99P9999-A1.ENGINEERING MATERIAL SPECIFICATIONWSK-M3D175-AWP 3948-b Page 5 of 64. APPROVAL OF MATERIALSMaterials defined by this specification must have prior approval by therespon
22、sible Materials Engineering activity. Suppliers desiring approval oftheir materials shall first obtain an expression of interest from theaffected Purchasing, Design and Materials Engineering activity. Uponrequest, the Supplier shall submit to the affected Materials Engineeringactivity a completed co
23、py of their laboratory test reports, signed by aqualified and authorized representative of the test facility, demonstratingfull compliance with all the requirements of this specification (testresults, not nominal values), the material designation and code number, andtest specimens for Ford evaluatio
24、n. Fords engineering approval of amaterial will be based on its performance to this specification and on anassessment of suitability for intended processes and/or applications. Uponapproval, the material will be added to the Engineering Material ApprovedSource List.5. GENERAL INFORMATIONThe informat
25、ion below is provided for clarification and assistance inmeeting the requirements to the specification.5.1 COEFFICIENT OF LINEAR THERMAL EXPANSION 0.7E-5/ C(ASTM D 696)5.2 MOLD SHRINKAGE(ISO 2577, approx. 300 x 300 x 2.5 +/- 0.2 mmcompression molded specimen)5.2.1 Molding Shrinkage. After 48 h at 23 +/- 2 C 0.1 %5.2.2 Post Shrinkage. After 48 h at 120 C 0.1 %5.3 Water Absorption, max 10 %(ISO 62, 24 h50 x 50 x2.5 +/- 0.2 mm specimen)5.4 RECYCLING CODEUP-GM20ENGINEERING MATERIAL SPECIFICATIONWSK-M3D175-AWP 3948-b Page 6 of 6TBD
