1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 01 2017 08 02 Revised See Summary of Revisions A. Collins, NA 2010 05 25 Activated M. Dumitrescu, G. Eaton Controlled document at www.MATS Copyright 2017, Ford Global Technologies, LLC Page 1 of 5 PERFORMANCE, ARMREST, FOAM IN PLACE WSS-
2、M15P26-D 1. SCOPE This specification defines the performance 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 m
3、ust also meet WSS-M15P20-B1/B2 requirements. The face materials must meet the requirements of material specifications (eg M1F, M2F, M1H) and the appropriate Performance Specification 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification is performance based and does not have approved sources. 3.2
4、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 Center master sample, or shall
5、 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 engineering drawing Substrate - As
6、specified on the engineering drawing ENGINEERING MATERIAL SPECIFICATION WSS-M15P26-D Copyright 2017, Ford Global Technologies, LLC Page 2 of 5 3.5 ENVIRONMENTAL TESTING 3.5.1 Sample Preparation All parts shall be fully trimmed including all components packaged in the environment (eg. speakers, hardw
7、are, 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 Materials Engineering Activity. The retention methods, atta
8、chments 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. 2 h at 50 +/- 2 C and 95 +/- 5% R.H. 30 min at 23 +/-
9、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 and after the tests as demonstrated. Tactually/visually:
10、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: No expansion, shrinking, or warping that will interfer
11、e 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 no evidence of foam crumbling. There shall be no permane
12、nt 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 SPECIFICATION WSS-M15P26-D Copyright 2017, Ford Global Technologies, LLC Page 3 of 5 3.7 LOAD DEFLECTION (FLTM BO 113-03, Steps 1-6) The lo
13、ad 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 PEEL ADHESION, N/50 mm, min, (FLTM BN 151-05, Method “A“, specimen thickness reduced to
14、 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 not be laminated and only tacked onto the backing foam, prior to foam injection. 3.9 RE
15、SISTANCE 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) Test sample preparation: For parts with any back side adhesively attached items (i.e. felt, flock, tape, ho
16、ok and loop, foam, etc.) test samples should be cut from areas that include the largest amount of each attached item. Fog Number, min 70 No 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
17、each component separately. ENGINEERING MATERIAL SPECIFICATION WSS-M15P26-D Copyright 2017, Ford Global Technologies, LLC Page 4 of 5 3.11 ODOR, max Rating 3 (FLTM BO 131-03) Test sample preparation: For parts with any back side adhesively attached items (i.e. felt, flock, tape, hook and loop, foam,
18、etc.) test samples should be cut from areas that include the largest amount of each attached item. 3.12 FLAMMABILITY (ISO 3795/SAE J369) Test sample preparation: For parts with any back side adhesively attached items (i.e. felt, flock, tape, hook and loop, foam, etc.) test samples should be cut from
19、 areas that include the largest amount of each attached item. Burn Rate, max 100 mm/minute 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifi
20、cations. 4.1 APPROVAL OF MATERIALS Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Product Development, and Materials Engineering. The supplier shall submit a completed copy of their laboratory test reports, signed by a qualified
21、 and authorized representative of the test facility, demonstrating full compliance with all the requirements of the Material Specification. Tested material samples must be available for review upon request and kept for a minimum of one year. Upon request, the supplier will review the associated qual
22、ity control documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.2 SUPPLIERS ONGOING RESPONSIBILITY All materials must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to t
23、he material originally approved, whether or not such changes affect the materials ability to meet the specification requirements, the supplier shall notify the affected Supplier Technical Assistance (STA), Purchasing, and Materials Engineering activities of the proposed changes (with reasons) by sub
24、mission of a completed Suppliers Request for Engineering Approval, SREA. For parts and components using Ford Engineering Material Specifications, all samples tested to the specifications for Design Verification (DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off m
25、ust be kept until Job 1. 4.3 RESTRICTED SUBSTANCE MANAGEMENT STANDARD Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in the Restricted Substance Management Standard WSS-M99P9999-A1 which is updat
26、ed yearly. It is the suppliers responsibility to comply with this standard on a continuing basis through IMDS and or GMAP reporting. ENGINEERING MATERIAL SPECIFICATION WSS-M15P26-D Copyright 2017, Ford Global Technologies, LLC Page 5 of 5 5. SUMMARY OF REVISIONS 2017 08 02 Editorial - added test sam
27、ple prep clarification to 3.10, 3.11, 3.12 Updated general paragraphs 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 3.5.3 Long Term Heat Exposure 1 X X 2 parts/new technology 3.6 F
28、atigue 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 adhesion 3.8.1 face material/laminated foam 3 X 3.9 Resistance to
29、 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
