Document Z91v43J87vx9b1VmZd3kvxxY

i 3 2MC3 Rctunaa Dr. ,, DeirSarr, l.'!S',.;3r .S1 Z' .Vail'.-.j Access B 0 Sox 2153 CfcarDOrn. Michigan 4S*2*. 1ST 27, 19c- 01097B Subjects Asbestos-Free Lining Development Program Cnassis Engineering, Brake Department, has initiated a program to eval uate asbestos-free brake lining materials. The objective of this pro- ;rs" is to develop asbestos-free disc and drum lining materials that nave the performance characteristics of present asbestos-containing organic end seni-metallic materials, and meet the requirements of toxic luostance regulation. ' attachment I cr'.lines a recommended lining evaluation program. 1..2 , currently releasee, lining materials will be used "as baselines foi "''relative performance comparison; TP13532I for organic non-asbestos cisc materials, D?lolA for semi-metallic disc materials, and H3198/ ;1?9 for drum materials. An asbestos-free organic material offering performance improvements, relative to the baseline, in the areas of increased fade resistance and a higher average coefficient of frictior. is desired. Likewise, an asbestos-free semi-metallic material offer ing performance improvements, relative to the baseline, in ohe areas of increased cold effectiveness and reduced rotor wear is desired. Submissions to Ford Bhould- be accompanied, with your-test-results-.for-------both your proposed asbestos-free material end the corresponding base line material. Ford 'will conduct structural and performance evaluations m the laboratory and on the dynamometer, and will review all perform ance data submitted by the supplier. Promising candidates will then be subjected to vehicle evaluations. It is recommended that all dynamometer and vehicle evaluations be run \ itl. Ford test procedures on the 1980 Thunderbird brake system to ensure nat the final comparison is as fair n- possible. System parameters lor the 1980 Thunder'"1 i are give;. in Attachment II, test procedures will be supplied as requailed. PRODUCED BY FORD -continued- 105561 SCF-FORD-1974 May 27, 1980 IT you are interested in participating in this program aa outlined, please confirm your intention with a brief letter. Material and per formance data submissions should be made to the Brake Department at your earliest convenience. *.Je are looking forward to your participation in this program, as your expertise and cooperation are instrumental in making this a successful . program. Very truly yours. .t attach 010977 PRODUCED BY FORD A5BESTOS-HSS ERASE LINETC- DEVELOPMENT IQBO CALENDAR TEAR VORK PLAN ATTACHMENT I Project Objectives Develop asbestos-free brake lining material, both seni-metallic and organic, to neet requirements of toxic substances regulation. Technical Arsroach 1. Irfon potential suppliers of pro gran intent . Corporate policy to reduce asoestce usage . Visit zc evaluate bctr. non-asbestos semi-met and organic linings for front disc and rear drum applications . Supplier fill conduct preliminary tests and present data to Ford . Ford \.uil conduct preliminary iaDoratory and dynamometer evaluations then vehicle test promising candidates 2. Submission of candidate material's) should be accompanied with the following - performance data for both submission and relative baselines . PDC, FAST, Gogan Hardness, Specific Gravity . Dynamometer Temperature - wear . Dynamometer Effectiveness and fluid displacement (Simulated IWVSS 105-75) . Static friction test for rear drum linings . Vehicle City Traffic and effectiveness performance (Optional) 3. Work with Scientific Research to evaluate candidates using the following tests: . FAST _ __ . Susceptability of corrosion bonding to caBt iron . Tensile strength - transverse and longitudinal . Shear strength . Rivetability . Thermal expansion coefficient - transverse and longitudinal . Dynamometer - wear procedure and 2MVSS 105 simulation . Contaminant sensitivity '* Provide feedback to suppliers on test results of their submissions, identify properties which need improving -continued- 010978 PRODUCED BY FORD 5. Install promising candidates on vesicle . Supplier Evaluation ' City Traffic {Detroit, Los Angeles, Minneapolis) . fleet Build . IMVSS 105-75 simulation . . 7c rd Evaluation , City Traffic (Detroit, Lzs Angeles, Minneapolis) . Fleet Build . Mountain Effectiveness . r.ffSS 105-75 . Concined Durability F;-5*'" Brake Deuartment May 27, 1980 010979 PRODUCED BY FORD ATTACHMENT II 19S0 THUNDERBIP.D SYSTEM PARAMETERS Weights GTCE 2 Passenger Erake Test Ueigr.t Front 2306 2149 2204 Rear 2058 1491 1905 Total 436U 3640 4109 Wheel Base Rolling Radius 4.22*in 12.4 in Vertical center of gravity Rear wheel cylinder Proportioning valve _ 6.2 in 13/16 in 300/.36 c$. J] Line pressure at 150 lbs pedal effort 1500 lb/in2 Brake Department May 15, 1980 010980 PRODUCED BY FORD