FORD WSS-M1F34-A1-2018 LEATHER GENUINE FULL GRAIN SPECIALITY STEERING WHEEL SHIFT KNOBS CHROME TANNED TO BE USED WITH FORD WSS-M99P1111-A .pdf

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1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 00 2018 08 07 Released A.Wagenhals, NA Controlled document at www.MATS.com Copyright 2018, Ford Global Technologies, LLC Page 1 of 3 LEATHER, GENUINE, FULL GRAIN, SPECIALITY, WSS-M1F34-A1 STEERING WHEEL, SHIFT KNOBS, CHROME TANNED 1. SCO

2、PE The material defined by this specification is tanned full grain from steer or heifer hides. The finish coating shall be a series of pigmented or clear resins to ensure compliance to all requirements of these specifications 2. APPLICATION This specification was released originally for full grain l

3、eather for hand wrapped steering wheels or shift knobs. 2.1 LIMITATIONS - This leather is not to be used for seating, interior trim, or instrument panel applications - Fully perforated leather is not to be used on steering wheels or shift knobs. - Under no circumstances shall this leather be subject

4、ed to steam heat, water, organic solvents or cleaners during the manufacturing process. No buffing stuccoing, filling or other repair is permitted. - Due to the special sourcing of the anolin leather crust, the material does not meet the gravemetric fogging requirements in WSS-M98P12-C2. 3. REQUIREM

5、ENTS 3.1 APPROVED SOURCES This specification requires the use of approved sources. Only the sources identified on the Ford Approved Source List (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

6、 available externally through a Ford Materials Engineer. 3.2 APPEARANCE The color, grain, gloss and hand shall match the approved Corporate Design master sample. 3.3 SPECIALTY GRAIN This leather is not embossed and is a full grain with no alteration to the surface. Minimal top coat is applied to enh

7、ance durability of the material. The leather must be through dyed to prevent undyed fibers from showing through after sewing or perforation. 3.4 LEATHER PERFORMANCE Materials manufactured to this specification shall also meet the requirements contained in WSS-M98P12-C2/latest, except for fogging, wh

8、ich section 3.15 supersedes. ENGINEERING MATERIAL SPECIFICATION WSS-M1F34-A1 Copyright 2018, Ford Global Technologies, LLC Page 2 of 4 For all test method results, no individual specimen shall fall below the minimum values specified herein. Test plans for both construction and color approvals can be

9、 found on Table 1 within WSS-M98P12-C2/latest with the expection of the tests required below (sections 3.9 3.15). 3.5 CONDITIONING AND TEST CONDITIONS All test values are based on material conditioned for not less than 24 h prior to testing in a controlled environment of 23 +/- 2 C and 50 +/- 5% rel

10、ative humidity. Testing of the material should occur in the conditioning environment or soon after removal. 3.6 SAMPLE SELECTION LOCATIONS The location of the test samples is described in ISO 2418 or ASTM D2813 for physical testing of leather samples. Refer to WSS-M98P12-C2/latest for samples to be

11、taken from the belly and backbone areas as noted in Table 1 of that specification. 3.7 FINISH The leather crust must be similar in color (minimum 80% color match) to the surface coating. This is to prevent undyed fibers from showing through after sewing . No correcting or repair of any kind shall be

12、 allowed including but not limited to buffing, filling, or stuccoing. Buffing is allowed for split leather only. 3.8 THICKNESS 1.5 - 2.0 mm (ASTM D1813) 3.9 BREAKING STRENGTH 1200 N min (ASTM D2208) 3.10 ELONGATION AT 100 N 7.5 - 17.5 % (ISO 3376, Cross and longitudinal directions Specimen size 50 X

13、 100 +/- 2 mm, 50 mm/min test speed, 2 N preload) 3.11 TEAR STRENGTH (Trapezoid) 250 N min (ASTM D5733, any direction) 3.12 STIFFNESS Report Range (FLTM BN 157-02, measurements shall be taken along either side of the backbone.) Note: Reported range in the construction approval package must be mainta

14、ined lot to lot throughout production. 3.13 SHRINKAGE 5% max (FLTM BN 105-03, except heat cycle at 100+/-2 C, 3 cycles, Report all measurements) 3.14 ADHESION OF SURFACE COATING (ISO 11644, Adhesive Sicomet 8400 or equivalent Supplier: Henkel, or equivalent Condition bonded test specimens for 1 hour

15、 min.) ENGINEERING MATERIAL SPECIFICATION WSS-M1F34-A1 Copyright 2018, Ford Global Technologies, LLC Page 3 of 4 3.14.1 As Received 12 N/10 mm min 3.14.2 After Humidity 12 N/10 mm min (7 days at 70 +/- 2 C and 95 +/-5% RH) 3.15 FOGGING (GRAVIMETRIC) (SAE J1756 16 h at 100 C heating, 21 C cooling pla

16、te, post testing conditioning, 4 h) Weight of Condensate 6.0 mg max After conditioning, the samples shall be pre-dried by storing in a desiccator over silica gel or equivalent for a period of 2 days. For shipping, all materials or parts shall be sampled immediately after manufacture, then bagged in

17、a zipper- or slide-sealed polyethylene (PE) bag, PE-coated aluminum bag or wrapped in aluminum foil prior to bagging. Test specimens shall be cut, then stored in a clean, open environment for 14-28 days. After 14-28 days of air exposure, the specimens shall be tested immediately or re-bagged until t

18、esting can be performed. Bagged materials or parts must be labelled on the outside of the bag with the following information, and included in the test report: supplier, contact information, product code/trade name or part number, manufacturing location, date of manufacture, shipping date, start and

19、end dates of conditioning period and test date. Sample shall be tested as part of a production assembly composite if it is, 100% bonded. If not 100% bonded, test each component separately. Parts for testing must be labelled with supplier and date of manufacture. 4. GENERAL INFORMATION The informatio

20、n given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. 4.1 TYPICAL STIFFNESS RANGE 70-90 mm (FLTM BN 157-02, measurements taken along either side of the backbone.) 4.2 APPROV

21、AL 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 and authorized rep

22、resentative 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 quality control documen

23、ts (Process Failure Mode and Effects Analysis, Control Plans, Certification testing) with Ford. 4.3 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 the material origina

24、lly 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 ENGINEERING MATERIAL SPECIFICATION WSS-M1F34-A1 Copyright

25、 2018, Ford Global Technologies, LLC Page 4 of 4 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 to the specifications for Design Verification (D

26、V), 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 addressed 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. 5. SUMMARY OF REVISIONS