ASTM D1062-2008 Standard Test Method for Cleavage Strength of Metal-to-Metal Adhesive Bonds《金属间粘结力抗裂强度的标准试验方法》.pdf

1、Designation: D 1062 08Standard Test Method forCleavage Strength of Metal-to-Metal Adhesive Bonds1This standard is issued under the fixed designation D 1062; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.

2、 A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.INTRODUCTIONThe accuracy of the results of strength tests of ad

3、hesive bonds will depend on the conditions underwhich the bonding process is carried out. Unless otherwise agreed upon by the manufacturer and thepurchaser, the bonding conditions shall be prescribed by the manufacturer of the adhesive. In order toensure that complete information is available to the

4、 individual conducting the tests, the manufacturerof the adhesive shall furnish numerical values and other specific information for each of the followingvariables:(1) Procedure for preparation of surfaces prior to application of the adhesive, the cleaning anddrying of metal surfaces, and special sur

5、face treatments such as sanding that are not specificallylimited by the pertinent test method.(2) Complete mixing directions for the adhesive.(3) Conditions for application of the adhesive, including the rate of spread or thickness of film,number of coats to be applied, whether to be applied to one

6、or both surfaces, and the conditions ofdrying where more than one coat is required.(4) Assembly conditions before application of pressure, including the room temperature, length oftime, and whether open or closed assembly is to be used.(5) Curing conditions, including the amount of pressure to be ap

7、plied, the length of time underpressure, and the temperature of the assembly when under pressure. State whether this temperature isthat of the bond line or of the atmosphere at which the assembly is to be maintained.(6) Conditioning procedure before testing, unless a standard procedure is specified,

8、 including thelength of time, temperature, and relative humidity.Arange may be prescribed for any variable by the manufacturer of the adhesive if it can be assumedby the test operator that any arbitrarily chosen value within such a range or any combination of suchvalues for several variables will be

9、 acceptable to both the manufacturer and the purchaser of theadhesive.1. Scope1.1 This test method covers the determination of the com-parative cleavage properties of adhesive bonds when tested onstandard shape metal specimens under specified conditions ofpreparation and testing. It may be used also

10、 to compareadhesives used with other metallic materials having anyspecified surface treatment.1.2 The values stated in SI units are to be regarded as thestandard. The values in parentheses are for information only.1.3 This standard does not purport to address all of thesafety concerns, if any, assoc

11、iated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2B 16/B 16M Specification for Free-Cutting Brass Rod, Baran

12、d Shapes for Use in Screw Machines1This test method is under the jurisdiction of ASTM Committee D14 onAdhesives and is the direct responsibility of Subcommittee D14.80 on MetalBonding Adhesives.Current edition approved Oct. 1, 2008. Published October 2008. Originallyapproved in 1949. Last previous e

13、dition approved in 2002 as D 1062 02.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM Internat

14、ional, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.B 133 Specification for Copper Rod, Bar, and Shapes3B 139/B 139M Specification for Phosphor Bronze Rod,Bar, and ShapesB211 Specification for Aluminum and Aluminum-AlloyBar, Rod, and WireD 907 Terminology of Ad

15、hesives2.2 Other Documents:AISI 1020 Steel Code Tables43. Terminology3.1 DefinitionsMany of the terms in this test method aredefined in Terminology D 907.3.2 Definitions of Terms Specific to This Standard:3.2.1 contact failure, nin characterizing the locus of anadhesive joint failure, the lack of ad

16、hesive being in contactwith the substrate.3.2.1.1 DiscussionContact failure may be due to condi-tions such as uneven surfaces, poor pressure distribution, orinsufficient adhesive in the bondline.4. Apparatus4.1 Use a testing machine capable of maintaining the rate ofloading specified in 8.2, and con

17、sisting essentially of thefollowing:4.1.1 Fixed MemberA fixed or essentially stationarymember, carrying one grip.4.1.2 Movable Member, carrying a second grip.4.1.3 Grips, for holding a test specimen between the fixedmember and the movable member. The grips are of theself-aligning type; that is, they

18、 shall be attached to the fixedand movable member, respectively, in such a way that they willmove into alignment as soon as any load is applied, so that thedirection of pull is at right angles to the point of adhesion.Recommended grips are shown in Figs. 1 and 2.5. Test Specimens5.1 The test specime

19、ns consist of metal pieces, conformingto the dimensions and conditions shown in Fig. 3, and gluedtogether as described in Section 6 with the adhesive to betested. Various metallic materials and surface treatments maybe specified to simulate surface conditions. The followinggrades of metal are recomm

20、ended for the test specimens, asbeing representative of a wide range of metallic materials:Metal DesignationBrass ASTM B 16/B 16M, C36000; half-hard temperCopper ASTM B 133, C11000; hard temperAluminum ASTM B211, A92024; specify temperSteel AISI 1020, G10200 cold-finished barPhosphor bronze ASTM B 1

21、39/B 139M, C544005.2 The metal pieces may be reused after testing, providedthe adhesive is completely removed from the adhering surfacesand the surfaces are reconditioned.3Withdrawn.4Available from American Iron and Steel Institute (AISI), 1140 ConnecticutAve., NW, Suite 705, Washington, DC 20036, h

22、ttp:/www.steel.org.AUpper grip CLower gripBPin connecting upper and lower grips DPin for attaching grip to specimenmm(in.)2.3(332)4.5(316)6(14)7.5(516)9(38)10.5(716)12.7(12)18.5(1316)19(34)21(78)28(118)30(1316)38(112)44(134)FIG. 1 Details of Test GripsD10620825.3 Unless otherwise agreed upon by the

23、purchaser and themanufacturer, test at least ten specimens for each adhesive, butin no case less than five.6. Bonding6.1 Prepare the areas to be cemented and bond with theprocedure outlined by the manufacturer of the adhesive.6.2 It is important that all squeezeout be carefully removedfrom the edges

24、 of the specimen.7. Conditioning7.1 Unless special conditioning procedures are agreed uponby the purchaser and the manufacturer the adhesive is ready fortest when it has been applied in accordance with Section 6.8. Procedure8.1 Place the specimen in the grips of the testing machine;take care to alig

25、n the specimen as indicated in Fig. 2.8.2 Apply tensile load at the rate of 270 to 320 kg (600 to700 lb)/min, or the crosshead speed of the testing machine shallbe such that the load can be accurately weighed but shall notexceed 1.27 mm (0.050 in.)/min when the machine is runningidle.8.3 Record the

26、maximum load in pounds carried by thespecimen at failure. Record the percent of cohesion, adhesion,and contact failures.9. Calculation9.1 Cleavage strength is the breaking load, expressed inpounds per inch. If possible, report the results to threesignificant figures.10. Report10.1 Report the followi

27、ng information:10.1.1 Complete identification of the adhesive tested, in-cluding type, source, manufacturers code numbers, form, etc.,10.1.2 Method of preparing test specimens,10.1.3 Average thickness of adhesive layer after formationof the joint, within 0.001 in. Describe the method of obtainingthe

28、 thickness of the adhesive layer. Include procedure, locationof measurements, and range of measurements.10.1.4 Conditioning procedure used,10.1.5 Conditions of testing room,10.1.6 Number of specimens tested,10.1.7 Rate of loading,10.1.8 Maximum, minimum, and average value of cleavagestrength. Option

29、ally, by agreement between the purchaser andthe manufacturer of the adhesive, all individual test results orthe standard deviation, or both, may also be required in thereport.10.1.9 Average value of the percentage of cohesion failure.11. Precision and Bias11.1 The precision and bias statement for th

30、is test methodhas not been determined yet. Archival and round-robin infor-mation is being reviewed, and the results are expected byDecember 2010.12. Keywords12.1 adhesive bonding; cleavage strengthAUpper gripBPin connecting upper and lower gripsCLower gripDPin for attaching grip to specimenEMetal pi

31、ecesFGlue lineFIG. 2 Assembly of Grips and Test Specimen for CleavageStrength Testmm (in.)0.000 (0.000)0.127 (0.005)4.5 (316)6(14)12.7 (12)15 (58)25 (1)32 (114)NOTE 1The 1-in. (25-mm) square surface to be glued shall be groundflat and parallel with the opposite surface.FIG. 3 Metal Piece for Use in

32、Test SpecimenD1062083ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringemen

33、t of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or f

34、or additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views know

35、n to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D1062084