GMKOREA EDS-T-4301-2008 SUNVISOR TEST PROCEDURE (VERSION 6 Replaced by GMW14189).pdf
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1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards SUNVISOR TEST PROCEDURE Do Not Use on New Programs. Being Replaced by GMW14189 EDS-T-4301 ISSUED DATE: 1990. 11. 30 REVISED DATE: 2008. 10. 15 VERSION: 6 (Superceded) SUNVISOR TEST PROCEDURE EDS-T-4301PAGE: 1/7 ISSUED
2、 DATE: 1990. 11. 30 REVISED DATE: 2008. 10. 15 VERSION: 6 GM DAEWOO Auto & Technology Note: This standard may be applied only for current project (incl. T255 Program). It is Superceded for all future projects and replaced by GMW14189. 1. PURPOSE This standard aims at enhancing the efficiency and rel
3、iability of tests by specifying the procedures of performance and durability tests of sun visors. 2. SCOPE This standard applies to sun visors (hereinafter test piece) of passenger vehicles. Applicable test pieces shall be tested in accordance with this standard, test results submitted for approval
4、and submitted to the QA Department prior to supplying parts for manufacture. Unspecified items shall be determined in consultation with related departments and questions on this standard shall be referred to the Testing Department. 3. PREPARATION OF TEST PIECE 3.1. In case a test piece is different
5、from already approved test piece or a design modification that entails departure from this standard, the supplier shall inform all changes to the consumer. 3.2. The supplier shall review measurement data and submit it to the consumer and inform any differences. 3.3. Unless otherwise specified in dra
6、wings for test pieces, test shall be performed at 205, 6520%. 4. TEST METHOD AND REQUIREMENT 4.1. Bowing under load test 4.1.1. Test method (1) Place the sun visor as shown in Fig. 1. Figure 1. Bowing under Load Test (2) Apply a test load F vertically over the whole width of the test piece and measu
7、re the “strain path“. (3) After applying a load of 100N, get the plastic strain “S“ as shown in Fig. 2. The test piece shall not be broken. The test shall be performed within a minute to avoid supplementary slipping-off of plastic parts. SUNVISOR TEST PROCEDURE EDS-T-4301PAGE: 2/7 ISSUED DATE: 1990.
8、 11. 30 REVISED DATE: 2008. 10. 15 VERSION: 6 GM DAEWOO Auto & Technology Figure 2. Load-Deformation Diagram (4) After permanence deformation test, measuring a maximum bending test load at 50mm/sec on test sample. 4.1.2. Requirement (1) Permanent deformation after 100N load approval shall be within
9、1mm without any breakage of test piece. (2) Maximum bending load shall be at least 200N. 4.2. Distortion test 4.2.1. Test method (1) Clamp the test piece as shown in Fig. 3. Here, mount whole width of test piece in the direction of width. Figure 3. Distortion Test (2) With one end of the test piece
10、fixed, measure the torsion rate and torque as shown in Fig. 4 by applying a torque up to a torsion angle of 45. TORQUE TORSION RATE = ANGLE SUNVISOR TEST PROCEDURE EDS-T-4301PAGE: 3/7 ISSUED DATE: 1990. 11. 30 REVISED DATE: 2008. 10. 15 VERSION: 6 GM DAEWOO Auto & Technology Figure 4. Torque-Angle D
11、iagram 4.2.2. Requirement (1) Torsion rate at 45distortion angle shall be at least 0.17Nm/1. (2) Distortion torque shall be at least 7.8Nm or greater without any breakage of test piece. 4.3. Swinging moment test 4.3.1. Test method (1) Clamp the supporting portion of the test piece as shown in Fig. 5
12、. Figure 5. Swinging Moment Test (2) While turning the test piece around the axis at the constant speed, measure the swinging moment as shown in Fig. 6.(Alternative: Clamp the test piece and turn the support to measure the moment.) 4.3.2. Requirement Moment for lateral rotation shall be within 0.5Nm
13、 2.0Nm. 4.4. Folding moment test 4.4.1. Test method (1) Fix the test piece support to the jig fixture and insert the contact piece into the holder and fix it to the jig fixture SUNVISOR TEST PROCEDURE EDS-T-4301PAGE: 4/7 ISSUED DATE: 1990. 11. 30 REVISED DATE: 2008. 10. 15 VERSION: 6 GM DAEWOO Auto
14、& Technology as in Fig. 6. Figure 6. Folding Moment Test (2) While rotating the test piece from the front windshield to the initial position, measure the folding moment over a range of angle of 180. 4.4.2. Requirement Moment during vertical folding shall be within the range of 0.5Nm 2.0Nm and the te
15、st piece shall not self release from the holder during vertical rotation. 4.5. Holder unlocking and locking force test 4.5.1. Test method (1) As in Fig. 7 fix the test piece support onto the jig fixture and insert the contact pieces to the holder. (2) Measure the load on the outer end area of contac
16、t piece as a sun visor is unlocked/locked to the holder at right angle to the holder entrance. (See Fig. 7) (3) Measure the unlocking force/ locking force of the test piece as its contact piece is unlocked/locked from the holder at room temperature of +205. (4) Keep the test piece at temperature of
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