1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 00 2017 12 14 Released K. Mueller, NA Controlled document at www.MATS Copyright 2017, Ford Global Technologies, Inc. Page 1 of 6 UNFINISHED TRIM, NON WOVEN, NEEDLED, WRS-M3H207-A1 POLYETHYLENE TEREPHTHALATE (PET) COMPOSITE, 25% RECYCLED M
2、ATERIAL BY WEIGHT, 980 g/m2 1. SCOPE The materials defined by these specifications are needled, nonwoven polyethylene terephthalate (PET) fibers, with a blend of virgin and recycled fibers. 2. APPLICATION These specifications were released originally for acoustic under-engine shields, acoustic under
3、body aero/NVH shields, and acoustic wheel arch/well liners. 2.1 LIMITATIONS These materials are not to be considered for use on Class A surfaces. 3. REQUIREMENTS 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List
4、 (ASL) can be used when this specification is listed on the drawing, CAD file, or other documents. The list of approved sources is located within Ford at or available externally through a Ford Materials Engineer. 3.2 CONDITIONING AND TEST CONDITIONS All test values are based on material conditioned
5、 for not less than 24 h prior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% relative humidity. Testing of the material should occur in the conditioning environment or soon after removal. 3.3 PERFORMANCE CRITERIA 3.3.1 In addition to the requirements listed herein, the end-item a
6、coustic underbody shields and wheel arch liners shall be tested to WSS-M99P32-E2/E3/E4/E5 (or latest) and any additional SDS requirements. The details for each of the suppliers specific construction shall be documented in the supplement attached and uploaded into the scanned data package. 3.3.2 Recy
7、cled Content This specification must contain 25% minimum recycled content as defined by WRS-M99P42-A2 (Textile Materials, Identification of Recycled Content). ENGINEERING MATERIAL SPECIFICATION WRS-M3H207-A1 Copyright 2017, Ford Global Technologies, Inc. Page 2 of 6 3.4 SAMPLE SELECTION All evaluati
8、ons shall be conducted on test specimens taken from finished roll goods prior to any subsequent operations, such as reheating or molding. 3.5 APPEARANCE Color shall be dark grey or black for all Wheel Arch / Wheel Well Liners (E2/E3) visible surfaces. White is not preferred for other components, a d
9、ark heather color is acceptable. Pigment is added in the extrusion process. 3.6 COMPOSITION 3.6.1 Face Spunbond Polyester 35-55% recycled (ASTM D276) 3.6.2 Binder Fiber Polyester 0% recycled (ASTM D276) 3.6.3 Core Polyester 60-100% recycled (ASTM D276) 3.6.4 Backing Spunbond Polyester 35-55% recycle
10、d (ASTM D276) 3.7 CONSTRUCTION 3.7.1 Face Spunbond 6 13 Denier (ASTM D1244) 3.7.2 Binder Fiber 2 - 6 Denier (ASTM D1244) 3.7.3 Core 3 - 7 Denier (ASTM D1244) 3.7.4 Backing Spunbond 6 - 13 Denier (ASTM D1244) 3.8 TOTAL THICKNESS 6.4mm +/- 0.6 mm (ISO 1765) 3.9 WEIGHT 3.9.1 Face Spunbond 60 - 100 g/m2
11、 (ASTM D5848) 3.9.2 Binder Fiber 300 500 g/m2 (ASTM D5848) ENGINEERING MATERIAL SPECIFICATION WRS-M3H207-A1 Copyright 2017, Ford Global Technologies, Inc. Page 3 of 6 3.9.3 Core 300 500 g/m2 (ASTM D5848) 3.9.4 Backing Spunbond 60 - 100 g/m2 (ASTM D5848) 3.9.5 Total Weight 882 - 1078 g/m2 3.10 MATERI
12、AL SHRINKAGE (FREE STATE) 8 - 14 % (Method: 200C for 2 minutes, MD/AMD) 1. Die cut a 300 mm x 300 mm piece of the unmolded, needle punched base fabric. 2. Reference Figure 1: 3. Place grommets on specimen. 4. Measure the distance between the grommets (in-line), using precision sliding caliper. This
13、results in 6 measurements (3 in MD and 3 in AMD). 5. Place specimen in oven (pre-heated to 200C), for 2 minutes. 6. Remove specimen from oven and let cool down and acclimate for at least 1hour. 7. Measure again the same distances, with the same caliper, and calculate the difference. 8. Calculate Shr
14、ink (change versus the original length). Figure 1 3.11 MATERIAL PROPERTIES (NEEDLED, NON MOLDED MATERIAL) 3.11.1 Breaking Force Preferred: (ISO 527-4 Type 2, Sample size 25 x 250 mm; Report N, min Testing speed: 100 mm/min, samples at maximum And minimum thicknesses) ENGINEERING MATERIAL SPECIFICATI
15、ON WRS-M3H207-A1 Copyright 2017, Ford Global Technologies, Inc. Page 4 of 6 OR (ASTM D5034, 100 mm between clamps, Report N, min speed 25mm/min, sample size 25mm x 150mm, at maximum and minimum thicknesses) Report Method, MD/CMD, thickness of samples. Provide all curves. 4. GENERAL INFORMATION This
16、information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 DRAWING CALL OUT The following shall be called out on the Engineering drawing to correctly designate the
17、approved material. WRS-M3H207-A1 Supplier Name and Product Code (As it appears on the Approved Source Listing) WSS-M99P32-E2/E3/E4/E5 (latest) 4.2 APPROVAL OF MATERIALS Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Product Deve
18、lopment, and Materials Engineering. The supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, demonstrating full compliance with all the requirements of the Material Specification. Tested material samples mu
19、st be available for review upon request and kept for a minimum of one year. Upon request, the supplier will review the associated quality control documents (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.3 SUPPLIERS ONGOING RESPONSIBILITY All materials
20、must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved, whether or not such changes affect the materials ability to meet the specification requirements, the supplier shall notify the affect
21、ed Supplier Technical Assistance (STA), Purchasing, and Materials Engineering activities of the proposed changes (with reasons) by submission of a completed Suppliers Request for Engineering Approval, SREA. For parts and components using Ford Engineering Material Specifications, all samples tested t
22、o the specifications for Design Verification (DV), Production Verification (PV) and Production Part Approval Process (PPAP) sign off must be kept until Job 1. 4.4 RESTRICTED SUBSTANCE MANAGEMENT STANDARD Substance restrictions imposed by regulations or Company direction applies to the materials addr
23、essed by this document. The restrictions are identified in the Restricted Substance Management Standard WSS-M99P9999-A1 which is updated yearly. It is the suppliers responsibility to comply with this standard on a continuing basis through IMDS and or GMAP reporting. ENGINEERING MATERIAL SPECIFICATIO
24、N WRS-M3H207-A1 Copyright 2017, Ford Global Technologies, Inc. Page 5 of 6 5. SUMMARY OF REVISIONS ENGINEERING MATERIAL SPECIFICATION WRS-M3H207-A1 Copyright 2017, Ford Global Technologies, Inc. Page 6 of 6 Non Woven Acoustic Underbody Construction Supplement Supplier _Supplier Contact Name_ Number
25、_ Product/ Style Name _ Material Specification _ Performance Specification _ Supplier Product Code _ Manufacturing Location _ Supplier Lab Number _ Supplier Lab Date _ Composition Type & Recycled Content % Supplier Face Spunbond ASTM D276 _ _ Binder Fiber ASTM D276 _ _ Core ASTM D276 _ _ Backing Spu
26、nbond ASTM D276 _ _ Construction Face Spunbond Denier ASTM D1244 _ Denier Binder Fiber Denier ASTM D1244 _ Denier Core Denier ASTM D1244 _ Denier Back Spunbond Denier ASTM D1244 _ Denier Total Thickness ISO 1765 _+/- _ mm Mass per Unit Area Weight Face Spunbond ASTM D5848 _+/- _ g/m2 Binder Fiber AS
27、TM D5848 _+/- _ g/m2 Core ASTM D5848 _+/- _ g/m2 Backing Spunbond ASTM D5848 _+/- _ g/m2 Material Shrinkage (Free State) See Method _+/- _ % Breaking Force ISO 527-4 or ASTM D5034 _ N 3.3.1 WSS-M99P32-testing included _ (Y/N) Materials Engineering Signature _Date _ Comments _ Rolled Goods _ Molded Product _
