1、 FORD LABORATORY TEST METHOD BO 113-04 Date Action Revisions Rev 03 2014 05 07 Editorial Removed statement in Apparatus required section referencing a flex fold machine BN 102-04. L. Schmalz, NA 2001 06 26 Revised Editorial no technical change A. Cockman 1992 11 02 Controlled document at www.MATS Co
2、pyright 2014, Ford Global Technologies, Inc. Page 1 of 2 ROLLING SPHERE FATIGUE TEST FOR ARM REST AND OTHER INTRICATE TRIM ASSEMBLIES Application This procedure is used to evaluate the resistance to deterioration of the covers and foams employed in arm rests, and to evaluate the cover to foam adhesi
3、on properties. Apparatus Required A free rolling 41 mm diameter sphere with means of applying a 10.9 kg load. A machine capable of providing 40 +/- 5 strokes per minute and having an adjustable stroke length. Fixtures are also required for stationary mounting of various arm rest designs having adjus
4、tments to allow for vertical and horizontal alignment of the arm rest with relation to the stroke direction of the weighted sphere (see BO 113-03, Figure 1). Conditioning and Test Conditions All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C a
5、nd 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure 1. Mount the arm rest so that the rolling sphere will travel horizontally along the surface center line of the arm rest (see BO 113-03). 2. Adjust the st
6、roke to a length that will allow for testing the critical areas having a vertical internal support. Arm rests having more than one critical area may require remounting and retesting if a critical area cannot be included due to limitations in the stroke length of the machine. 3. Run for the specified
7、 number of cycles indicated by the material specification. FORD LABORATORY TEST METHOD BO 113-04 Copyright 2014, Ford Global Technologies, Inc. Page 2 of 2 4. Examine the cover stock and report any cracking or other adverse effects. Cut through the cover stock and examine for delamination from foam
8、and for foam deterioration (crumbling) or for other adverse effects as specified by the engineering document. Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities.
