1、ENGINEERING MATERIAL SPECIFICATION Page 1 of 6 Copyright 2016, Ford Global Technologies, LLC Controlled document at www.MATS.com PERFORMANCE, INSTRUMENT CLUSTER ASSEMBLY WSS-M15P52-A 1. SCOPE This specification defines the performance requirements for the instrument cluster assembly and visible comp
2、onents up to the lens. 2. APPLICATION This specification was released originally for instrument clusters. Testing must be conducted on parts per Table 1, which defines sample size and testing required. Chrome components outside of the lens must meet WSS-M1P83-C1/Latest. Painted components outside of
3、 the lens must meet WSS-M2P188-A1/Latest Foil / Film covered surfaces outside of the lens must meet WSS-M15P34-E/Latest Graphic printings outside of the lens must meet WSS-M2P158-A1/Latest 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must c
4、onform to the Companys Standard Requirements for Production Materials (WSS-M99P1111-A). The use of regrind is permitted, for economic/environmental reasons, with compliance as indicated in WSS-M99P1111-A. 3.2 SYSTEM COMPONENTS 3.2.1 Resistance to Scratch Initial Hardness of all painted parts within
5、this assembly must be cured/dry at time of packing to withstand normal handling and shipping without marring. 3.2.2 Substrate ABS, Polycarbonate, Polypropylene or as specified on Engineering Drawing. Substrate must not contain any additives, or mold release agents which will adversely affect the in
6、mold decorating process. 3.2.3 Aging Test panels or test specimens prepared for investigations according to this specification must be aged for at least 72 h at 23 +/- 2 C or 16 h at 45 +/- 1 C prior to testing. Date Action Revisions Rev. 1 2016 11 28 Editorial See Summary of Revisions M. Corley, Fo
7、E 2009 02 04 Activated New specification replacing WSS-M2P184-A L. Sinclair, FNA ENGINEERING MATERIAL SPECIFICATION Page 2 of 6 Copyright 2016, Ford Global Technologies, Inc. WSS-M15P52-A 3.3 APPEARANCE Color, gloss, grain, tactile effect and surface finish shall match master Trim Sample and/or Mast
8、er Appearance sample as approved by Design Studio. The coating shall exhibit no craters, pinholes, solvent popping, seediness, abnormal roughness, excessive flow or any other detrimental defect. 3.3.1 Color (FLTM BI 109-01 Visual Assessment) (SAE J1545, Three-Angle CMC) Shall match the Master Approv
9、ed Sample. 3.3.2 Gloss, min Report (FLTM BI 110-01, ASTM D 523) As released by Engineering: A: 20 Glossmeter, min 92 B: 60 Glossmeter 76 - 84 C: 60 Glossmeter 66 - 74 D: 60 Glossmeter 58 - 66 E: 60 Glossmeter 47 - 53 F: 60 Glossmeter 33 - 38 G: 60 Glossmeter 17 - 23 H: 60 Glossmeter 7 - 13 J: 60 Glo
10、ssmeter 4 - 6 K: 60 Glossmeter 2 - 4 L: 60 Glossmeter 0.5 - 2.0 N: 60 Glossmeter 1.8 - 2.4 The color, pattern and finish shall match the approved Design Center master sample, or shall be as specified on the Engineering Document. 3.3.3 Ink Film Thickness Report (ASTM B 487, PELT or equivalent) Coatin
11、g thickness must be sufficient to meet all requirements of this material specification. 3.4 ENVIRONMENTAL TESTING 3.4.1 Sample Preparation All parts shall be fully trimmed including all components packaged in the environment (e.g. speakers, hardware, wiring, etc.) and assembled onto actual or repres
12、entative 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, attachments and supporting garnish molding (if any), shall
13、 be the same as proposed for production. ENGINEERING MATERIAL SPECIFICATION Page 3 of 6 Copyright 2016, Ford Global Technologies, Inc. WSS-M15P52-A 3.4.2 Measurement Locations Every twenty centimeters AND AT THE POINTS OF GREATEST MOVEMENT BETWEEN THE TWENTY CENTIMETER MARKS along the parts outside
14、edges and internal openings. The “significant characteristics locations“ specified on the engineering drawing. 3.4.3 Measurement Technique The movement at each measurement point shall be recorded in two directions: (1) in the x/y plane from the observers view, and (2) in the z-dimension direction in
15、to or out of the x/y plane from the observers view. The observers view shall remain consistent always viewing from the front side of the part. 3.4.4 Test Procedure Visually evaluate the part before and after the test. Measure the part and record data at all specified locations at room temperature be
16、fore and after cycling on the production support foundation or test fixture. Also, during para. 3.3.5 “Short Term Heat and Cold Cycle“ testing, visually evaluate the part and measure any significant characteristic locations only, during the last half-hour of each cold and hot extreme temperature per
17、iod. Automated programmable test cycles based on the listed test conditions may be accepted by prior agreement with the affected Materials Engineering Activity. Ramp speed 1 to 5 C per minute. Record actual ramp speed on data sheet. 3.4.5 SHORT TERM HEAT, HUMIDITY, AND COLD CYCLE 3.4.5.1 Horizontal
18、or vertical parts AT OR ABOVE THE BELT-LINE (e.g. sail, A-, B- ,C-, and D-pillars, upper quarter panels, seats, hard instrument panels and roof-rail moldings): . 5 h at -30 +/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 5 h at 100 +/- 2 C . 30 min at 23 +/- 2 C and 50% R.H. . 2 h at 50 +/- 2 C and 95
19、 +/- 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 100 +/- 2 C 3.4.6 LONG TERM HEAT EXPOSURE Test three previously unexposed assemblies as follows: 3.4.6.1 Horizontal or vertical parts AT OR ABOVE THE BELT-LINE (e.g., door panels, lower
20、 quarter trim panels, carpet, headliner, consoles and glove box doors and overhead consoles): . 7 days at 100 +/- 2 C ENGINEERING MATERIAL SPECIFICATION Page 4 of 6 Copyright 2016, Ford Global Technologies, Inc. WSS-M15P52-A Requirements: The trimmed assemblies shall remain relatively unaffected by
21、the exposure cycles during and after the tests as demonstrated. (1) Tactually/visually no excessive tackiness, loss in surface-grain, or surface- color change (AATCC Procedure 1, Rating 4, min.); no wrinkling, distortion, blistering, warping, delamination, blushing, hazing, milking, staining, wavine
22、ss, or other objectionable visual appearance. (2) Dimensionally/Functionally no excessive expansion, shrinking, or warping that will interfere with normal functional operations. (See test procedure paragraph 3.3.4 for details on during test data acquisition intervals) or after the test; for the “sig
23、nificant characteristic locations“. NOTE: Allowable expansion, shrinking or warping from the original installed position will be noted on the engineering drawing. Dimensional exceptions to these requirements may be allowed on the Engineering drawing. 3.5 COLOR AND APPEARANCE PROPERTIES 3.5.1 Resista
24、nce to Fade (FLTM BO 116-01, ISO 105 A-02/AATCC Evaluation Procedure 1) In Vehicle Sunlight Exposure Level FLTM BO 116-01 Test Exposure AATCC Rating After Exposure, min. Appliqu, Coated parts (i.e. pointer) 601.6 kJ/m2 Rating 4 Lens Cover, Film and Housing 977.6 kJ/m2 Rating 4 3.6 PHYSICAL/RESISTANC
25、E PROPERTIES 3.6.1 Adhesion of Paint/Ink (FLTM BI 106-01, Method B) Grade 0 Max 3.6.2 Water Immersion Test (FLTM BI 104-01) 96 h No blistering, softening, dulling, color change or loss of adhesion per para 3.5.1 within 30 minutes of removal from water on all paint systems. 3.6.3 Resistance to Water
26、and Soap Spotting, Rating 4 max discoloration (FLTM BI 113-01/ ISO 105-A02/ AATCC Evaluation Procedure 1) No film softening allowed for any solution. ENGINEERING MATERIAL SPECIFICATION Page 5 of 6 Copyright 2016, Ford Global Technologies, Inc. WSS-M15P52-A 3.6.4 Resistance to Cleaning Agents, max Ra
27、ting 4 Discoloration Apply 0.25 ml of cleaner (see below) on the test sample using a non-reactive O-ring. Expose the sample at the room temperature for 1 h. Evaluate per ISO 105- A02/AATCC Evaluation Procedure 1. No film softening allowed for any solution. Cleaners 1) Window cleaner 2) All purpose c
28、leaner 3.7 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 16 h) Fog Number, min 70 Formation of clear film, droplets or crystals is cause for rejection. 3.8 ODOR, max (FLTM BO 131-03) Rating 3 3.9 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 3.1
29、0 PROCESS WINDOW DEFINITION The supplier shall perform a Design of Experiments (Response Surface Analysis is recommended) to determine the process window of the substrate/paint combination. The three variables/parameters to be included in the design are bake temperature, bake time, and film thicknes
30、s. An initial screening experiment should be run to determine what levels should be tested for the variables/parameters. This screening experiment should be reviewed with the materials engineer to set up the final DOE. Responses for the DOE shall include, but are not limited to, the following: Film
31、Thickness, para 3.2.3 Gloss, para 3.2.2 Initial Adhesion, para 3.6.1 Water Resistance, para 3.6.3 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
32、Specifications. 5. SUMMARY OF REVISIONS 2016 11 28 Editorial Added Performance Specification References in Section 2: Application ENGINEERING MATERIAL SPECIFICATION Page 6 of 6 Copyright 2016, Ford Global Technologies, Inc. WSS-M15P52-A TESTING REQUIREMENTS TABLE 1 REQUIREMENTS Sample Size Instrumen
33、t Cluster Assembly Clear Lens Cover / Film Applique / Coated Parts Applique Per New/Modified product designs, or New/Modified production process for Per Color Short Term Heat, Humidity and Cold Cycle 1 X X X Long Term Heat Exposure 1 X X X Resistance to Fade 1 X X X Resistance to Water and Soap Spotting 3 X Resistance to Cleaning Agents 3 X Ink Film Thickness 1 X* X X Adhesion of Paint/Ink/ Film 3 X* X X Water Immersion Test 3 X* X X Fogging 1 X X Odor 1 X X Flammability 3 X X X * = coated lens only X = applicable requirement
