1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS 7805 : Part 2 : 1997 I
2、CS 21.060.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Swaged collar grooved rivets Part 2. Specification for sizes from 12.7 mm up to and including 34.9 mmBS 7805 : Part 2 : 1997 This British Standard, having been prepared under the direction of the Engineering Sector B
3、oard, was published under the authority of the Standards Board and comes into effect on 15 June 1997 BSI 1997 The following BSI references relate to the work on this standard: Committee reference FME/6 Draft for comment 96/709087 DC ISBN 0 580 27154 4 Amendments issued since publication Amd. No. Dat
4、e Text affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee FME/6, Rivets, upon which the following bodies were represented: British Friction Materials Council British Industrial Fasteners Federation British Steel Ind
5、ustry (Wire Section) Institution of Structural Engineers Ministry of Defence National Association of Fastener Stockholders Society of Motor Manufacturers and Traders LimitedBS 7805 : Part 2 : 1997 BSI 1997 i Contents Page Committees responsible Inside front cover Foreword ii Specification 1 Scope 1
6、2 Normative references 1 3 Definitions 1 4 Materials 1 5 Finishes 1 6 Dimensions 1 7 Performance 4 8 General 4 9 Designation for the purposes of an enquiry or order 4 Annex A (normative) Test methods to determine the shear loads and tensile loads of swaged collar grooved rivets 5 Tables 1 Pin/collar
7、 material combinations 1 2 Dimensions of installed swaged collar grooved rivets 3 3 Shear and tensile loads 4 A.1 Diameter of holes for rivet tests 5 Figures 1 Dimensions of installed swaged collar grooved rivets 2 A.1 Basic requirements for a test fixture for shear testing 6 A.2 Basic requirements
8、for a test fixture for tensile testing 6 List of references Inside back coverii BSI 1997 BS 7805 : Part 2 : 1997 Foreword This Part of BS 7805 has been prepared by Technical Committee FME/6. It defines installed swaged collar grooved rivets by dimensions, materials of manufacture and performance for
9、 general engineering purposes. BS 7805 : Part 1 : 1995 covers swaged collar grooved rivets up to and including 10 mm diameter. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover,
10、pages i and ii, pages 1 to 6, an inside back cover and a back cover. BSI 1997 1 BS 7805 : Part 2 : 1997 Table 1. Pin/collar material combinations Designation Pin material Collar material A Steel 0.44 % carbon, maximum Steel 0.1 % carbon, maximum B Aluminium alloy BS 1473 : 1972, grade 6061 Aluminium
11、 alloy BS 1473 : 1972, grade 6061 C Aluminium alloy BS 1470 : 1987, grade 2024 Aluminium alloy BS 1473 : 1972, grade 6061 D Stainless steel 300 series Stainless steel 300 series Specification 1 Scope This Part of BS 7805 specifies the materials of manufacture, hole diameter, the range of joint thick
12、ness and performance of installed swaged collar grooved rivets with nominal shank diameters from 12.7 mm to 34.9 mm inclusive, and either a round, truss or 90 countersunk head. 2 Normative references This Part of BS 7805 incorporates, by reference, provisions from specific editions of other publicat
13、ions. These normative references are cited at the appropriate points in the text and the publications are listed on the inside back cover. Subsequent amendments to, or revisions of, any of these publications apply to this British Standard only when incorporated in it by updating or revision. 3 Defin
14、itions For the purposes of this Part of BS 7805, the following definitions apply. 3.1 grip g t The maximum and minimum total thickness of the work pieces to be joined together. 3.2 grip capability g r The maximum and minimum total thickness of work pieces to be joined by a particular diameter of swa
15、ged collar grooved rivet. 3.3 tensile load The load which the rivet is capable of withstanding prior to failure in tension, when measured under test conditions. 3.4 shear load The load which the rivet is capable of withstanding prior to failure in shear, when measured under test conditions. 3.5 hole
16、 size The diameter of the hole in the work pieces to be joined. 3.6 collarside protrusion S Protrusion of the fractured surface of the pin above the surface of the collar side of the joint. 4 Materials Swaged collar grooved rivets shall be manufactured from the materials listed in table 1. The mater
17、ials shall be identified by the designation of the appropriate combination of pin/collar material required (see clause 9). 5 Finishes Steel pins shall be self finished. Steel collars shall be zinc plated and passivated in accordance with BS 7371 : Part 3 : 1993 Zn5A. Aluminium alloy pins and collars
18、 shall be self finished. Stainless steel pins and collars shall be self finished. NOTE. A variety of finishes other than those specified above are available for special applications by agreement between the purchaser and manufacturer. These are outside the scope of this standard. 6 Dimensions The di
19、mensions of installed swaged collar grooved rivets shall be as given in table 2 and figure 1.2 BSI 1997 BS 7805 : Part 2 : 1997 S d k,r g t d s k r S d k,t g t d s k t S d k,c g t d s Round head Truss head Countersunk head Figure 1. Dimensions of installed swaged collar grooved rivets BSI 1997 3 BS
20、7805 : Part 2 : 1997 Table 2. Dimensions of installed swaged collar grooved rivets Dimensions in millimetres Nominal diameter Plain shank diameter Collar side protrusion Recommended hole size Round head Truss head Countersunk head Grip capability diameter thickness diameter thickness diameter d s Sd
21、 k,r k r d k,t k t d k,c g r max. max. min. max. min. max. min. max. min. max. min. max. min. max. min. max 12.7 13.2 26.7 13.2 14.3 22.1 23.9 7.6 8.4 22.1 23.9 5.7 6.4 22.1 24.1 6.4 133.5 15.9 16.4 32.3 16.4 17.5 27.7 30.2 9.5 10.6 27.7 30.2 7.0 8.0 27.6 30.1 6.4 127.0 19.1 19.6 35.2 19.6 20.7 33.6
22、 36.6 11.7 13.3 33.6 36.6 8.6 9.6 33.2 36.1 6.4 127.0 22.2 22.8 39.4 22.8 23.8 39.2 42.2 13.4 14.8 39.2 42.2 9.9 11.2 38.8 42.1 12.7 121.0 25.4 26.0 43.5 26.0 27.0 45.1 48.5 14.9 16.4 45.1 48.5 11.4 12.8 44.3 48.2 12.7 153.0 28.6 29.3 47.8 29.3 30.2 50.7 54.1 16.6 18.3 49.9 54.2 89.0 153.0 34.9 35.4
23、 60.1 35.4 38.1 62.7 66.1 20.6 22.4 102.0 870.04 BSI 1997 BS 7805 : Part 2 : 1997 Table 3. Shear and tensile loads Nominal pin diameter Minimum shear load kN Minimum tensile load kN Material designation mm ABCDABCD 12.7 64.0 32.4 23.6 61.8 75.8 34.9 21.8 75.8 15.9 100.0 50.7 36.9 93.4 120.5 54.7 34.
24、1 120.5 19.1 144.1 72.9 52.9 134.8 178.4 78.7 49.1 178.4 22.2 193.0 246.6 25.4 251.3 323.4 28.6 309.1 368.9 34.9 444.8 576.0 1) Marking BS 7805 : Part 2 : 1997 on or in relation to a product represents a manufacturers declaration of conformity, i.e. a claim by or on behalf of the manufacturer that t
25、he product meets the requirements of the standard. The accuracy of the claim is solely the claimants responsibility. Such a declaration is not to be confused with third party certification of conformity, which may also be desirable. 7 Performance When tested in accordance with annex A, rivets shall
26、have shear and tensile loads not less than those given in table 3. 8 General Rivets shall be free from harmful defects. Splits in periphery of heads shall not exceed 0.25 mm deep 3 0.5 mm wide. 9 Designation for the purposes of an enquiry or order When designating swaged collar grooved rivets the fo
27、llowing information shall be given: a) swaged collar grooved rivet; b) the number of this British Standard, i.e. BS 7805 : Part 2 : 1997 1) ; c) head style: round head pin (A); truss head pin (B); countersunk head pin (C). d) nominal shank diameter, in mm, e.g: 12.7 = 127; 28.6 = 286. e) pin and col
28、lar material combination; NOTE. The combination of material used for the rivet assembly is shown in table 1. f) maximum grip required, in mm, e.g. 32. Example: Swaged collar grooved rivet BS 7805 : Part 2 : 1997 B 222D 32 indicates: Swaged collar grooved rivet conforming to BS 7805 : Part 2 : 1997;
29、B: Truss headed pin; 222 : 22.2 mm rivet shank diameter; D : Pin and collar manufactured in 300 series stainless steel; 32 : Maximum grip required 32 mm.BS 7805 : Part 2 : 1997 BSI 1997 5 Annex A (normative) Test methods to determine the shear loads and tensile loads of swaged collar grooved rivets
30、A.1 Shear test A.1.1 Apparatus A.1.1.1 Test fixture, comprising two plates of equal nominal thickness, axially aligned and assembled into a single lap joint by means of the test rivet, as shown in figure A.1. The diameters of the test holes are as given in table A.1. The plates are of alloy steel, h
31、ardened and tempered to within the range of 46 HRC to 50 HRC with a surface finish not exceeding 3.2mm. The test fixture shall be assembled as follows. Install the rivet in accordance with the manufacturers recommendations using the tool supplied by the manufacturer. Ensure the total thickness of th
32、e test fixture does not exceed the minimum grip length of the particular rivet to be tested. For testing of short rivets see A.1.3. NOTE. Test plates should be discarded when the clearance holes accommodating the test rivet are no longer round, show signs of wear or damage, or exceed the maximum dia
33、meter given in table A.1. Table A.1. Diameter of holes for rivet tests Dimensions in millimetres Nominal rivet body diameter Test hole diameter min. max. 12.7 13.3 14.3 15.9 16.5 17.5 19.1 19.7 20.7 22.2 22.9 23.8 25.4 26.1 27.0 28.6 29.4 30.2 34.9 35.5 38.1 A.1.1.2 Tensile testing machine, capable
34、of applying a tensile load through self aligning grips and fitted with a cross head, the free running speed of which shall not be less than 7 mm/min or greater than 13 mm/min. A.1.2 Procedure Assemble the test fixture between the jaws of the tensile testing machine, taking care to ensure that the te
35、nsile load will be transmitted in a straight line through the shear plane of the test rivet. Maintaining a free running speed within the specified range, apply a tensile load to the test fixture and increase the loading until failure of the rivet occurs. Record the maximum load applied (measured in
36、kN) as being the shear load of the rivet. NOTE. If hydraulic testing machines are used care should be taken to locate the fixture at the centre of the piston. A.1.3 Testing of short rivets For rivets with maximum grip lengths shorter than 2t, the combined thickness of the two equal thickness test pl
37、ates shall be equal to the maximum grip length of the particular rivet to be tested. Testing of short rivets shall be in accordance with A.1.1 and A.1.2. The evaluation of the test results is dependent upon whether the test plates can sustain the ultimate shear load of the rivet to be tested. Conseq
38、uently, test recording for short rivets has the following categories. a) If the test plates remain intact until the rivet fails, the maximum load recorded is the ultimate shear load of the test rivet. If this load is equal to or above the minimum shear load, specified in table 3 for the diameter of
39、rivet under test, the rivet has passed the test. b) If the rivet remains intact and the test plates fail at a load equal to or above the minimum shear load, specified in table 3 for the diameter of rivet under test, the rivet has passed the test. However, in this case the ultimate shear load of the
40、rivet can not be determined. c) If the rivet fails before the minimum shear load is reached, specified in table 3 for the diameter of rivet under test, the rivet has not passed the test. NOTE. If the rivet remains intact and the plates fail at a load less than the minimum shear load, specified in ta
41、ble 3 for the diameter of rivet under test, the acceptability of the rivet may be agreed between the purchaser and manufacturer. A.2 Tensile test A.2.1 Apparatus A.2.1.1 Test fixture, comprising two plates of equal nominal thickness, axially aligned and assembled into a single lap joint by means of
42、the test rivet, as shown in figure A.2. The diameters of the test holes are as given in table A.1. The plates are of alloy steel, hardened and tempered to within the range of 46 HRC to 50 HRC with a surface finish not exceeding 3.2mm. The test fixture shall be assembled as follows. Install the rivet
43、 in accordance with the manufacturers recommendations using the tool supplied by the manufacturer. Ensure the total thickness of the test fixture does not exceed the minimum grip length of the particular rivet to be tested. For testing of short rivets see A.2.3. NOTE. Test plates should be discarded
44、 when the clearance holes to accommodate the test rivet are no longer round, show signs of wear or damage or exceed the maximum diameter given in table A.1.6 BSI 1997 BS 7805 : Part 2 : 1997 t t t = nominal rivet body diameter Figure A.1. Basic requirements for a test fixture for shear testing t t t
45、 = nominal rivet body diameter Figure A.2. Basic requirements for a test fixture for tensile testing A.2.1.2 Tensile testing machine, capable of applying a tensile load through self aligning grips and fitted with a cross head, the free running speed of which shall not be less than 7 mm/min or greate
46、r than 13 mm/min. A.2.2 Procedure Assemble the test fixture between the jaws of the tensile testing machine, taking care to ensure that the tensile load will be transmitted in a straight line through the centre line of the test rivet. Maintaining a free running speed within the specified range, appl
47、y a load to the test fixture and increase the loading until failure of the rivet occurs. Record the maximum load applied (measured in kN) as being the tensile load of the rivet. NOTE. If hydraulic testing machines are used care should be taken to locate the fixture at the centre of the piston. A.2.3
48、 Testing of short rivets For rivets with maximum grip lengths shorter than 2t, the combined thickness of the two equal thickness test plates shall be equal to the maximum grip length of the particular rivet to be tested. Testing of short rivets shall be in accordance with A.2.1 and A.2.2. The evaluation of the test results is dependent upon whether the test plates can sustain the ultimate tensile load of the rivet to be tested. Consequently, test recording for short rivets has the following categories. a) If the test plates remain intact until the
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