1、 ENGINEERING STANDARDS Test Procedure SUPERCEDED EDS-T-7179 Method of Inspection for Spot Weld This standard may be applied only for current projects. It is Superceded for all future projects and replaced by GMW14057. 9D 79E.8 1- Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program .Bd# GMW14057 ) $4=F7
2、 957F$ . Copyright 2011 General Motors Company All Rights Reserved July 2011 Originating Department: GM Korea Engineering Standards Page 1 of 7 Version : 3 1 Scope Note: Nothing in this standard supersedes applicable laws and regulations. Note: In the event of conflict between the Korean and English
3、 language, the Korean language shall take precedence. 1.1 Purpose. The purpose of this standard is to specify test procedure and assessment criteria on spot welded joints of metal materials used for motor vehicles. 1.2 Applicability. This standard provides specifications on spot weld joints of low c
4、arbon steel, low alloy steel and stainless steel materials with panel thickness of 0.4 5.0 mm. Here, hardening agent, surface treatment agent, clad material and combination of different materials, whose tension strength of welded area is 25 % or less of tension shear strength, are excluded. 2 Refere
5、nces Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. KS B 0850 KS B 0851 KS B 0852 KS B 0854 2.2 GM Standards/Specifications. EDS-T-7178 2.3 Additional References. None 3 Resources 3.1 Test Piece. 3.1.1 Test Piece Types. 3.1.
6、1.1 Type I Test Piece. This is for testing welding areas using continuous spot welding and end point spot welding test materials. Manufacture of this sample shall follow EDS-T-7178 (Spot Welding Joint Tension Shear 8 79E. E+8 D8 8x 91F+ , D8 8t 6H8 $4( :E4 0 :E4 8p).Bd 6H8 :*+A 79E. E+8 D8 8 , ; DD
7、% 8 10 % D# 0.15 mm :E A ;8 F8x $4 78 8 . D: “$4 l8 . GM KOREA ENGINEERING STANDARDS EDS-T-7179 Copyright 2011 General Motors Company All Rights Reserved July 2011 Page 5 of 7 Version : 3 (b) 3 Pieces Overlap / 38 ? Panel Thickness T 5 Panels Penetration Rate = t 5T5 100(%) Panel Thickness T 6 Panel
8、s T 5 side Penetration Rate = t 6 5T5 100(%) Panel Thickness T 6 Panels T 7 side Penetration Rate = t 6 7T7 100(%) Panel Thickness T 7 Panels Penetration Rate = t 7T7 100(%) Where, T1, T2, T3: Panel Thickness T1, T3 $4 78 8 . D1, D2: “2? -C D?4 E 3 8 F 81866 F$ . 29 4G D8 7# “2?4 E 3 8 F 81866 F$ .
9、DF 78*8t 19 -C 29 4G D +% DD % 8 20 % 81866 F$ . DD % 4 $* 7 D# 38 ?8 ,8*) d8F+ , 8898$ 4G -C 88 4G 8t $4F:E8x ?U9IF+ , 9I3L) d8F$ . 6 6|987 $4F 7 9 ., E:48t 88G ,p: , 86 , 8/x &%8x E FF 3L 8$ . ., E:48t 87 $4F 170 4)%P +& 6|98 ,l9P8 F8x 9P4F:# 6#$ . &d(2P 17 987 95FF 6|980 I 1B* 9DF , -18 9PF 728 9
10、57 7 .* 9IF# 8t ., E:4 1788 =y8 1F8$ . GM KOREA ENGINEERING STANDARDS EDS-T-7179 Copyright 2011 General Motors Company All Rights Reserved July 2011 Page 7 of 7 Version : 3 7 Notes 7.1 Glossary. Not applicable. 7.2 Acronyms, Abbreviations, and Symbols. Not applicable. 8 Coding System This standard s
11、hall be referenced in other documents, drawings, etc., as follows: Test to EDS-T-7179 9 Release and Revisions This standard was originated in August 1999. It was first approved by Engineering Standard Committee in August 1999. It was first published in August 1999. 7 768 9I8 7.1 98,l 76 . F$-1F 68 .
12、 7.2 66 -C dGl . F$-1F 68 . 8 Ed - $* ,l2P! $+ &%72P ., E:48 87%T &# $80 M8 EdF$ . Test to EDS-T-7179 9 9P9I -C P9I 8)Y ., E:48t 1999“x 887 E:4 -Gl4 .7 %L6 , d3TE:41,h7 8F 1999“x 887 38%L6$ . ., E:48t 1999“x 887 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 3 JUL 2011 Apply new Engineering Standard Template. Superceded (Corrosion / Metallurgical Material Lab Team) / 4 d3TE:4 64 957 . F9I957 =* (28*4G D4 )
