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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 mm Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:20:49 GMT+00:00 2006, Unc
3、ontrolled Copy, (c) BSI BS 7805 : Part 2 : 1997 This British Standard, having been prepared under the direction of the Engineering Sector Board, 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
4、this standard: Committee reference FME/6 Draft for comment 96/709087 DC ISBN 0 580 27154 4 Amendments issued since publication Amd. No.DateText affected Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical Committee FME/6, Rivets, upon
5、which the following bodies were represented: British Friction Materials Council British Industrial Fasteners Federation British Steel Industry (Wire Section) Institution of Structural Engineers Ministry of Defence National Association of Fastener Stockholders Society of Motor Manufacturers and Trade
6、rs Limited Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:20:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7805 : Part 2 : 1997 BSI 1997i Contents Page Committees responsibleInside front cover Forewordii Specification 1Scope1 2Normative references1 3Defin
7、itions1 4Materials1 5Finishes1 6Dimensions1 7Performance4 8General4 9Designation for the purposes of an enquiry or order4 Annex A(normative) Test methods to determine the shear loads and tensile loads of swaged collar grooved rivets5 Tables 1Pin/collar material combinations1 2Dimensions of installed
8、 swaged collar grooved rivets3 3Shear and tensile loads4 A.1 Diameter of holes for rivet tests5 Figures 1Dimensions of installed swaged collar grooved rivets2 A.1 Basic requirements for a test fixture for shear testing6 A.2 Basic requirements for a test fixture for tensile testing6 List of reference
9、sInside back cover Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:20:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii 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 c
10、ollar grooved rivets by dimensions, materials of manufacture and performance for 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.
11、 Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, pages 1 to 6, an inside back cover and a back cover. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:20:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BSI 19971 BS
12、7805 : Part 2 : 1997 Table 1. Pin/collar material combinations DesignationPin materialCollar material ASteel 0.44 % carbon, maximumSteel 0.1 % carbon, maximum BAluminium alloy BS 1473 : 1972, grade 6061 Aluminium alloy BS 1473 : 1972, grade 6061 CAluminium alloy BS 1470 : 1987, grade 2024 Aluminium
13、alloy BS 1473 : 1972, grade 6061 DStainless steel 300 seriesStainless steel 300 series Specification 1 Scope This Part of BS 7805 specifies the materials of manufacture, hole diameter, the range of joint thickness and performance of installed swaged collar grooved rivets with nominal shank diameters
14、 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 publications. These normative references are cited at the appropriate points in the text and the pu
15、blications 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 Definitions For the purposes of this Part of BS 7805, the following definitions apply. 3.1 grip
16、gt The maximum and minimum total thickness of the work pieces to be joined together. 3.2 grip capability gr The maximum and minimum total thickness of work pieces to be joined by a particular diameter of swaged collar grooved rivet. 3.3 tensile load The load which the rivet is capable of withstandin
17、g 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 size The diameter of the hole in the work pieces to be joined. 3.6 collarside protrusion S P
18、rotrusion 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 materials shall be identified by the designation of the appropriate combination of pin/collar mate
19、rial 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 shall be self finished. Stainless steel pins and collars shall be self finished. NOTE. A var
20、iety 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 dimensions of installed swaged collar grooved rivets shall be as given in table 2 and figure 1.
21、 Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:20:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 BSI 1997 BS 7805 : Part 2 : 1997 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? S dk,r gt ds kr ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? S dk,t gt
22、ds kt ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? S dk,c gt ds Round head Truss head Countersunk head Figure 1. Dimensions of installed swaged collar grooved rivets Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:20:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
23、 BSI 19973 BS 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 headTruss headCountersunk head Grip capability diameterthicknessdiameterthicknessdiamete
24、r dsSdk,rkrdk,tktdk,cgr max.max.min.max.min.max.min.max.min.max.min.max.min.max.min.max 12.713.226.713.214.322.123.97.68.422.123.95.76.422.124.16.4133.5 15.916.432.316.417.527.730.29.510.627.730.27.08.027.630.16.4127.0 19.119.635.219.620.733.636.611.713.333.636.68.69.633.236.16.4127.0 22.222.839.422
25、.823.839.242.213.414.839.242.29.911.238.842.112.7121.0 25.426.043.526.027.045.148.514.916.445.148.511.412.844.348.212.7153.0 28.629.347.829.330.250.754.116.618.349.954.289.0153.0 34.935.460.135.438.162.766.120.622.4102.0870.0 Licensed Copy: London South Bank University, London South Bank University,
26、 Fri Dec 08 11:20:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 4 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 mmABCDABCD 12.764.032.423.661.875.834.921.875.8 15.9100.050.736.993.4120.554.734
27、.1120.5 19.1144.172.952.9134.8178.478.749.1178.4 22.2193.0246.6 25.4251.3323.4 28.6309.1368.9 34.9444.8576.0 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 the product meets
28、 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 have shear and t
29、ensile 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 following informat
30、ion shall be given: a) swaged collar grooved rivet; b) the number of this British Standard, i.e. BS 7805 : Part 2 : 19971); 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 collar material combi
31、nation; 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; B: Truss headed pi
32、n; 222 : 22.2 mm rivet shank diameter; D : Pin and collar manufactured in 300 series stainless steel; 32 : Maximum grip required 32 mm. Licensed Copy: London South Bank University, London South Bank University, Fri Dec 08 11:20:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 7805 : Part 2 : 1997 BS
33、I 19975 Annex A (normative) Test methods to determine the shear loads and tensile loads of swaged collar grooved rivets 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 ri
34、vet, 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, hardened and tempered to within the range of 46 HRC to 50 HRC with a surface finish not exceeding 3.2 mm. The test fixture shall be assembled as follows. Install the rivet in accord
35、ance 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.1.3. NOTE. Test plates should be discarded when the
36、clearance holes accommodating the test rivet are no longer round, show signs of wear or damage, or exceed the maximum diameter 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. 12.713.314.3 15.916.517.5
37、19.119.720.7 22.222.923.8 25.426.127.0 28.629.430.2 34.935.538.1 A.1.1.2 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 greater than 13 mm/min. A.1.2 Procedure As
38、semble 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 shear plane of the test rivet. Maintaining a free running speed within the specified range, apply a tensile load to the test fixture
39、 and increase the loading until failure of the rivet occurs. Record the maximum load applied (measured in 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 r
40、ivets 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.1.1 and A.1.2. The evaluation of the test results is de
41、pendent upon whether the test plates can sustain the ultimate shear 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 rivet fails, the maximum load recorded is the ultimate shear load of the test
42、rivet. If this load is 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. 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
43、 of rivet under test, the rivet has passed the test. However, in this case the ultimate shear load of the 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. I
44、f the rivet remains intact and the plates fail at a load less than the minimum shear load, specified in table 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
45、 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.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 wi
46、th a surface finish not exceeding 3.2 mm. 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 the test fixture does not exceed the minimum grip length of the
47、particular rivet to be tested. For testing of short rivets see A.2.3. NOTE. Test plates should be discarded 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. Licensed Copy: London South Bank Uni
48、versity, London South Bank University, Fri Dec 08 11:20:49 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 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 ? ? ? ? tt t = nominal rivet body diameter Figure A.2
49、. 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 greater 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 thro