1、 ENGINEERING STANDARDS Test Procedure SUPERCEDED EDS-T-7145 Method of Head Soundness Test for Bolt This standard may be applied only for current projects. It is Superceded for all future projects and replaced by ISO898-1. .0C8 +l*. A 4G - Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program .Bd# ISO898-
2、1 ) $4=F7 957F$ . Copyright 2011 General Motors Company All Rights Reserved July 2011 Originating Department: GM Korea Engineering Standards Page 1 of 4 Version : 3 1 Scope Note: Nothing in this standard supersedes applicable laws and regulations. Note: In the event of conflict between the Korean an
3、d English language, the Korean language shall take precedence. 1.1 Purpose. This standard aims at helping test personnel perform the test in an appropriate method by describing the test method to examine the occurrence of defects when impacting below the neck of the header applied by dynamic and ten
4、sile stress in tightening the bolt. 1.2 Applicability. This standard specifies the method of head soundness test bolt of external thread parts such as bolts and machine screws. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Spe
5、cifications. KS B 0233 KS B 0238 2.2 GM Standards/Specifications. None 2.3 Additional References. None 3 Resources 3.1 Equipment. 3.1.1 Test Jig. The Test jig of bolt header of external thread shall be size of 45 80 mm as Figure 1 and value of angle ( ) shall conform Table 1. 1 P7 :0 : ., E:48 6&F !
6、7$ :4-8! 9I8x $4=F 3L 6$ . :0 : F67t 7568 18 88x 7 , F6* 72T8p) F$ . 1.1 +95 . ., E:48t .0C =4 % 95 , 888 )Y8x -O# +l*.8 + -E7 $4F7 +l*. A48 F 8T,h* G8Fd 88F 4G -8x d3TF8p)4 , 4G 84 7-H* -8p) 4G 8x :FF 3L 8 F8x , +958p) F$ . 1.2 957-88 . 8 E:48t .0C , 88t !1 &% 3L!1 .E8 +l*. A 4G -7 $4F7 9IF$ . 2 4)
7、 E:4 / :0 : C-H +d%P 9I8 6# F 48 07 38%P E:48x 957F$ . 2.1 17 E:4 / . KS B 0233 KS B 0238 2.2 GM E:4 / . None 2.3 dA E:4 / . None 3 4G 88 3.1 4G 8/x . 3.1.1 4G 7 :, . 3L!1 .E8 4G 7 JIG # ,* 10 M8 45 80 mm8 A d) F+ 5$ 8 F8t E 17 &d*$ . GM KOREA ENGINEERING STANDARDS EDS-T-7145 Copyright 2011 General
8、Motors Company All Rights Reserved July 2011 Page 2 of 4 Version : 3 Figure 1: Size and Shape of Test Jig / ,* 1: 4G 7 :,8 A d -C +6 Table 1: Value of Angle Depending on Strength Class / E 1: I$ .7 &d* 5$ 8 F Strength class / I$ . 3.6 4.6 5.6 4.8 5.8 6.8 8.8 10.9 12.9 Angle E / 5$ 60q 80q 3.1.1.1 To
9、lerance on hole of the test jig shall conform to Table 2. 3.1.1.1 4G 7 :,8 +7 $4F )=# E 27 &d*$ . Table 2: Tolerance on Nominal Diameter of Screw / E 2: !18 Gl?:*7 &d* )= Nominal dia. Of screw, d (mm) / !18 Gl? :* , d (mm) R Note 1 / :0 1 (mm) C (mm) Over / $4? (mm). da Min: 8B. :*8 2? (mm). 3.1.1.2
10、 4G 7 :, (JIG)8 $# HRC 409I$) F$ . 3.2 4G D . 3.2.1 4G D8t 9PE (.0C ) ,$4) 17F$ . 3.2.2 2 3P818x , 3L8178t 2 1P818 4G D8x 4G F7 6 F$ . 4 4G 9) 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 )
