GMKOREA EDS-T-7606-2011 Test Method for Determining the Dielectric Welding Properties of Upholstery Materials.pdf
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1、 ENGINEERING STANDARDS Test Procedure SUPERCEDED EDS-T-7606 Test Method for Determining the Dielectric Welding Properties of Upholstery Materials This standard may be applied only for current projects. It is Superceded for all future projects and replaced by GMI60347. !8 8:8 :0D 79E2e 4G - Note: 8 E
2、:48t G8 =97 FF7 957%L+ , FG P-P Program .Bd# GMI60347 ) $4=F7 957F$ . Copyright 2011 General Motors Company All Rights Reserved October 2011 Originating Department: GM Korea Engineering Standards Page 1 of 10 Version : 4 1 Scope Note: Nothing in this standard supersedes applicable laws and regulatio
3、ns. Note: In the event of conflict between the Korean and English language, the Korean language shall take precedence. 1.1 Purpose. The purpose of this standard is to determine the dielectric welding properties of automotive trim materials, foils, and garnish moldings. 1.2 Applicability. This standa
4、rd shall be used to determine the dielectric welding properties of automotive trim materials, foils, and garnish moldings and to evaluate the states after welding and the joint strength of welding area after aging about them, using the laboratory welding machine and the production welding machine. *
5、 But, the materials under test shall be welded in the same combination as it is welded in production. The test can be performed on only one test material at a time. Any other materials to be combined will be the standard materials of which the weldability have been proved in production. 2 References
6、 Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. EDS-T-7507 2.2 GM Standards/Specifications. None 2.3 Additional References. None 1 P7 :0 : ., E:48 6 -LB*7# BFp( D8C (Tempilaq Paint) 3 5 mm E!8 DFF 2T8x 4#F F 6 -H*$ . (2 P# F
7、x7F 79E 7$.($ ! 2 P# “8t , 4 4: 7$ 88 BFp(8 Fx7F$ . 8); $ +8t 7$ 88x 17F# 8t 4G 484 9IGF8x dFd 88F2P 8$ .) 3.1.2.2 8 (8 88; 9Q +958t 25 cm2 8$ . GM KOREA ENGINEERING STANDARDS EDS-T-7606 Copyright 2011 General Motors Company All Rights Reserved October 2011 Page 3 of 10 Version : 4 The electrodes sh
8、all be 38 mm high (40 mm initial material - 2 mm machining allowance), and its surface shall be smooth (no engraving) to reduce weld defects. A sketch of the test tool is shown in Figure 1. For tests on embossed welds, a special tool with suitable electrodes shall be used. 3.1.3.2 Production Tool. F
9、or production welding tests, current production tooling shall be used. 3.1.4 Welding Machines. 3.1.4.1 Laboratory Welding Machine. The welding machine used shall have a high - frequency generator with an output of approx. 5 KW and use welding frequency of 27.12 MHz. It shall be equipped with means o
10、f maintaining the required pressures constantly over the required time. 3.1.4.2 Production Welding Machine. For production welding tests, current production welding equipment shall be used. 3.1.5 Spring Balance. For testing the adhesive strength of the welded joint, a spring balance of sufficient me
11、asuring range to cover the anticipated pull off force, shall be used. For approval purposes, the pull off force may be determined using a suitable tensile machine fitted with suitable clamps. 3.2 Test Piece. 3.2.1 For tests which utilize the laboratory test tool and welding machine; the test pieces
12、shall be cut (250250) mm dimension so as to be suitable for the welding machine. 3.2.2 For tests which utilize production tooling and welding machines; Current production parts shall be used as test pieces. 3.2.3 Number of Test Pieces. At least 10. 4 Procedures 4.1 Conditions. 4.1.1 Test Conditions.
13、 Deviations from the requirements of this standard shall have been agreed upon. Such requirements shall be specified on component drawings, test certificates, reports, etc. 4.1.2 Conditioning. 4.1.2.1 For Laboratory Test Welding. All materials shall be conditioned at +85 E 2.5K for at least 1 hour p
14、rior to welding. 4.1.2.2 For Production Welding. Welding shall be performed on materials in the as received condition without special conditioning. 8 98-8 “8# 38 mm (7 !A!6$ . ,h# 79E8x Fd 88F 4G 8t 959 C-F Ch8x 17F$ . 3.1.3.2 9P97 Ch . 9PE8 79E 4G 8x 88F2P# G88 17F# 9P9 Ch8x 17F$ . 3.1.4 79Ed . 3.1
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