1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Rev. 0 2010 05 25 Activated M. Dumitrescu, G. Eaton Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 3 PERFORMANCE, ARMREST, FOAM IN PLACE WSS-M15P26-D 1. SCOPE This specification defines the performance
2、requirements for a foam-in-place molded armrest assembly. 2. APPLICATION This specification was released originally for automotive door or seat armrests. This is not applicable for wrap around applications. Molded foam used in assemblies must also meet WSS-M15P20-B1/B2 requirements. The face materia
3、ls must meet the requirements of material specifications (eg M1F, M2F, M1H) and the appropriate Performance Specification 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materia
4、ls (WSS-M99P1111-A). 3.2 SAMPLE SELECTION Testing must be conducted on part at each prototype and production build phase unless specified otherwise by Ford Engineering. See Table 1 for DV/PV testing. 3.3 APPEARANCE (FLTM BI 109-01) The color, pattern, and finish shall match the approved Design Cente
5、r master sample, or shall be as specified on the engineering drawing. 3.4 CONSTRUCTION The parts consist of face/cover material laminated to foam, which are cut and sewn to the desired shape and injected with foam. Cover - As specified on the engineering drawing Foam - As specified on the engineerin
6、g drawing Substrate - As specified on the engineering drawing ENGINEERING MATERIAL SPECIFICATIONWSS-M15P26-D Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.5 ENVIRONMENTAL TESTING 3.5.1 Sample Preparation All parts shall be fully trimmed including all com
7、ponents packaged in the environment (eg. speakers, hardware, wiring, etc.) and assembled onto actual or representative production support foundations that include not only all attaching points but also any boundary conditions that may restrict movement, unless otherwise specified by the affected Mat
8、erials Engineering Activity. The retention methods, attachments and supporting garnish moldings (if any) shall be the same as proposed for production. 3.5.2 Short Term Heat, Humidity and Cold Cycle 5 h at -30 +/- 2 C 30 min at 23 +/- 2 C and 50% R.H. 5 h at 90+/- 2 C 30 min at 23 +/- 2 C and 50% R.H
9、. 2 h at 50 +/- 2 C and 95 +/- 5% R.H. 30 min at 23 +/- 2 C and 50% R.H. 5 h at -30 +/- 2 C 30 min at 23 +/- 2 C and 50% R.H. 5 h at 90 +/- 2 C 3.5.3 Long Term Heat Exposure (7 days at 90 +/- 2 C) Requirements: The trimmed assemblies shall remain relatively unaffected by the exposure cycles during a
10、nd after the tests as demonstrated. Tactually/visually: The assembly shall not become tacky, lose surface-grain definition, or exhibit surface-color change; no wrinkling, distortion, blistering, delamination, blushing, hazing, milking, staining, or other objectionable visual appearance. Functionally
11、: No expansion, shrinking, or warping that will interfere with normal functional operations. 3.6 FATIGUE TEST (FLTM BO 113-04, 2000 cycles) 3.6.1 Original 3.6.2 After exposure per para 3.5.2 3.6.3 After exposure per para 3.5.3 The cover material shall not delaminate from the foam and there shall be
12、no evidence of foam crumbling. There shall be no permanent deformation greater than 2 mm. Results of this test shall be determined by cutting a cross section of the armrest after fatigue flexing. ENGINEERING MATERIAL SPECIFICATIONWSS-M15P26-D Printed copies are uncontrolled Copyright 2010, Ford Glob
13、al Technologies, LLC Page 3 of 4 3.7 LOAD DEFLECTION (FLTM BO 113-03, Steps 1-6) The load values and test location and depth of deflection shall be as specified on the engineering drawing. Load Loss at 0 +/- 1 C, max 55% Load Loss at 23 +/- 2 C, max 40% Aged Load Deflection, Change - 5 to + 35% 3.8
14、PEEL ADHESION, N/50 mm, min, (FLTM BN 151-05, Method “A“, specimen thickness reduced to 15 mm max) 3.8.1 Fabric/Vinyl material/laminate foam As received 9 After Aging 9 (Heat, cold, humidity and dry cleaning) After Autoclave Aging 9 (ISO 2440/ASTM D 3574, Test J2, 5 h at 120 C) Leather covers shall
15、not be laminated and only tacked onto the backing foam, prior to foam injection. 3.9 RESISTANCE TO FADE (FLTM BO 116-01, ISO 105-A02/AATCC Evaluation Procedure 1) 977.6 kJ/m2 Rating 4 3.10 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 h) Fog Number, min 70 N
16、o formation of clear film, droplets or crystals. Sample shall be tested as part of a production assembly composite if it is 100% bonded. If not 100% bonded, test each component separately. ENGINEERING MATERIAL SPECIFICATIONWSS-M15P26-D Printed copies are uncontrolled Copyright 2010, Ford Global Tech
17、nologies, LLC Page 4 of 4 3.11 ODOR, max Rating 3 (FLTM BO 131-03) 3.12 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute Table 1 Paragraphs Sample size New color testing DV PV Comments 3.5 Environmental testing 3.5.2 Short Term Heat, Humidity and Cold Cycle 1 X X 2 parts/new technology
18、3.5.3 Long Term Heat Exposure 1 X X 2 parts/new technology 3.6 Fatigue test 3.6.1 Original 1 X X 2 parts/new technology 3.6.2 after exposure per 3.5.2 1 X X 2 parts/new technology 3.6.3 after exposure per 3.5.3 1 X X 2 parts/new technology 3.7 Load deflection 3 X X 2 parts/new technology 3.8. Peel a
19、dhesion 3.8.1 face material/laminated foam 3 X 3.9 Resistance to Fade 1per color X X Surrogate material supplier data may be used 3.10 Fogging 3 specimens per part-any color X X Contact Materials engineering if surrogate data is acceptable 3.11 Odor 1 per part per condition X X Material data may be used as surrogate when using a Ford approved material. 3.12 Flammability 5 specimens X X X Testing depends on part size (355x100mm min) FMVSS 302 could be used as surrogate
