NAVY MIL-STD-1628-1974 FILLET WELD SIZE STRENGTH AND EFFICIENCY DETERMINATION《焊角尺寸力度效率测定法》.pdf

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1、NOTE: MIL-STD-1628 has been redesignated as a Test Method Standard. The coverpage has been changed for Administrative reasons. There are no other changesto this Document.MIL-STD-1628 (SHIPS)28 JUNE 1974AMSC N/A FSC 3439DISTRIBUTION STATEMENT A. Approved for public release; distribution isunlimited.D

2、EPARTMENT OF DEFENSETEST METHODFILLET WELD SIZE, STRENGTH,AND EFFICIENCY DETERMINATIONProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-MIL-sTo-1628 (SHIPS)28 June 1974DEPARTFUXJTOF THE NAVYNAVAL SHIP ENGINEER1!IGCEIJTERHYATTSVILLE, MARYLAND 20782Fillet

3、Weld Size, Strength,and Efficiency DeterminationMIL-sTD-1628 (SHIPS)1. This Milltary Standard is approved for use by all activities under the cognizanceof the Naval Ship Systems Command.2. For contracts or procurement orders which nvoke exsting fabrication documentswhich have self-contained fillet w

4、eld efficiency requlremcnts, the contractor or vendorshall not use this standard without prior contractual approval.3. Repair ships, Tenders, Repair Facilities, Supervisors of Shlpbuildlng and NavalShipyards may use this standard in lieu of other criteria in various fabrication documentsnow invoked

5、by Chapter 9920 NAVSHIPS 0901-920-0003) of the Naval Ships Technical Manualfor alteration and repair.4. Any conflicts noted wthin this standard or between this standard and referenceddocuments should be brought to the attention of the Naval ship Engineering Center (NAVSEC),Department of the Navy, Ce

6、nter Building, Prince Georqes Center, Ilyattsville,Maryland20782. In addition, recommended corrections, additions, or deletions should also be sentto the above address.iiProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-MIL-sTI)-1628(SHIPS)28 June 1974FO

7、REWORD1. This standard was prepared for tne purpose of comblnlng, updating and expandingduplicate fillet weld shear strength information now contained in a number of fabricationstandards. The duplication of information increases the possibility of confusion andconflicting data. It is the intent of t

8、his standard to contain all of the fillet weldshear strength, and efficiency data acceptable for use In construction and repair of Navalships.2. Information contained in this standard was obtained by actual shear testing ofrepresentative filler metal and base metal combinations welded in accordance

9、with goodfabrication practices. The resulting welds were similar in quality to those actuallyproduced during production fabrication. Tables and figures (charts) were prepared tosimplify and condense presentation of the information. In addition to the tables and charts,the formulas and methods used t

10、o develop the charts are also presented.3. Existing data obtained from shear testinq has been reviewed for accuracy. Sometest samples yielding questionable results have been retested to verify the data. Additionalshear testinq may be accomplished to further expand the selection of filler metal and b

11、asemetal Comblnatlons.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-J41L-STD-1628(SHIPS)28 June 19741.2.3.4.4.45.5.15.1.15.1.25.1.35.1.45.1.55.25.2.15.2.25.2.35.2.45.35.45.4.15.4.25.4.35.55.5.15.5.25.5.35.5,46.III1111213141516171819202122232425262728

12、CONTENTSSCOPE . . . . . . . . . . . . . . . . . . . , . “ “ “.”REFERENCED DOCUMENTS . . . . . . . . . . . . . . . . . . . . .TERMS, DEFINITIONS, MD SYmLS . . . . . . . . . . . . . . . .GENHWLREQUIR=NTS . . . . . . . . . . . . . Q . . . “ “ - “Applcabillty . . . . . . . . . . . . . . . . . . . . . .D

13、ETAIL REQUIREMENTS. . . . . . . . . . . . . . . . . . . . . “Fillet weld table and chart description and usage . . . .General . . . . . . . . . . . . . . . . . . s . . . . 0 “Base metal ultimate tensile strength . . . . . . . . . . .Filler metal strength . . . . . . . . . . . . . . . . . .Index to e

14、fficiency charts and computation factors . . . .Fillet weld size and efficiency charts (figures 1through 40) . . . . . . . 0 . . . . . . . 0 . . . . . . -Direct calculation of fillet weld strength, computationfactors, fillet weld size and efficiencies . . . . . . .Calculation of fillet weld strength

15、 . . . . . . . . . . .Calculation of computation factors . . . . . . . . . . . .Computing fillet weld size . . . . . . . . . . . . . . . .Computing fillet weld efficiency . . . . . . . . . . . . .partial penetration groove tee welds . . . . . . . . . . .Sample calculations . . . . . . . . . . . . 0

16、. . . . G .partial penetration groove tee welds . . . . . . . . . . .Strength of fillet weld joints . . . . . . . . . . . . . .Fillet weld size and efficiency . . . . . . . . . . . . .Continuous double fillet weld efficency chart developmentGeneral . . . . . . . . . . . . . . . . . . . . . . 0 0 .De

17、rivation of equation for fillet weld size . . . . . . .Efficiency chart drawing . . . . . . . . . . . . . . . . .Developmentof shear data . . . . . . . . . . . . . . . .NOTES INotapplicabie) . . . . . . . . . . . . . . . . . . . .TABLES. . 1. . 1. . 1,. 2. . 2. . 2. . 2. . 2. . 2. . 3,. 4,. 11. . 11

18、. . 11. . 11. . 12. . 12/13. . 13. . 13. . 13. . 14. . 15. . 17. . 17. . 17. . 18. . 18. . 18Base metal tensile strength . . . . . . . . . . . . . . . . . . . . 3Filler metal strength values . . . . . . . . . . . . . . . . . . . 4Index to efficiency charts and computation factors . . . . . . . . ;-i

19、FIGURESEfficiency chart for computation factor of 0.30 . . . . . . . . . . 19Efficiency chart for computation factor Of 0.35 . . . . . . . . . . 20Efficiency chart for computation factor of 0.40 . . . . . . . . . . 21Efficiency chart for computation factor of 0.45 . . . . . . . . . . 22Efficiency ch

20、art for computation factor of 0.50 . . . . . . . . . . 23Efficiency chart for computation factor of 0.55 . . . . . . . . . . 24Efficiency chart for computation factor of 0.60 . . . . . . . . . . 25Efficiency chart for computation factor of 0.65 . . . . . . . . . . 26Efficiency chart for computation

21、factor of 0.70 . . . . . . . . . . 27Efficiency chart for computation factor of 0.75 . . . . . . . . . . 28Efficiency chart for computation factor of 0.80 . . . . . . . . . . 29Efficiency chart for computation factor of 0.85 . . . . . . . . . . 30Efficiency chart for computation factor of 0.90 . . .

22、 . . . . . . . 31Efficiency chart for computation factor of 0.95 . . . . . . . . . . 32Efficiency chart for computation factor of 1.00 . . . . . . . . . . 33Efficiency chart for computation factor of 1.05 . . . . . . . . . . 34Efficiency chart for computation factor of 1.10 . . . . . . . . . . 35Eff

23、iciencychart for computation factor of 1.15 . . . . . . . . . . 36Efficiency chart for computation factor of 1.20 . . . . . . . . . . 37Efficiency chart for computation factor of 1.25 . . . . . . . . . . 38Efficiency chart for computation fiSCtO?of 1.30 . . . . . . . . . . 39Efficiency chart for com

24、putation factor of 1.35 . . . . . . . . . . 40Efficiency chart for computation factorof 1.40 . . . . . . . . . . :;Efficiency chart for computation factor of 1.45 . . . . . . . . . .Efficiency chart for computation faCtO? of 1.50 . . . . . . . . . . :;Efficiency chart for computation factor of 1.55

25、. . . . . . . . . .Efficiency chart for computation factorof 1.60 . . . . . . . . . . 45Efficiency chart for computation factor of 1.65 . . . . . . . . . . 46ivProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-29303132333435363738394041MIL-sTD-1628 (SHIP

26、S)28 June 1974CONTENTS (Centd)FIGURSS (Centd)Efficiency chart for computation factor of 1.70 . . . , . . . . .Efficiency chart for computation factor of 1.75 . . . . . . . . . .Efficiency chart for computation factor of 1.80 , . . . . . . . . .Efficiency chart for computation factor of 1.85 . . . .

27、. . . . . .Efficiency chart for computation factor of 1.90 . . . . . . . . , .Efficiency chart for computation factor of 1.95 . . . . . . . . . .Efficiency chart for computation factor of 2.00 . . . . . . . . . .Efficiency chart for computation factor of 2.05 . . . . . . . . . .Efficiency chart for

28、computation factor of 2.10 . . . . . . . . . .Efficiency chart for computation factor of 2.15 . . . . . . . . . .Efficiency chart for computation factor of 2.20 . . . . . . . . . .Efficiency chart for computation factor of 2.25 . . . . . . . . . .Partial penetration groove tee welds . . . . . . . .

29、. . . . . . .47484950515253545556575B59v/viProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-MIL-STD-1628 (SHIPS)28 June 19141. SCOPE1.1 This standard contain

30、s the necessary data for selecting or calculating continuousdouble fillet weld sizes t!tatwill !rovidcthe required joint efficiency and yet beeconomical for the application involved.1.2 The base metal and WCIU metal tcnsllc strenqths of tables I and II, respectively,are based on mninur. procurement

31、swclflcatlon values unless othezvlsc specified herein, Theweld metal longitudnal shear strength values In table II arc based on actual testinq. ThCcomputation factors of table III arc calculated based on the specific strength values of thebase metal/weld metal conhination being consldcrecl. Fiqures

32、1 through 40 depict fillet weldefficiency charts based on the various computation factors. Accordingly, fillet weldstrength, size, or efficiency can be determined for a specific material combination andthickness. Weld sizing formulas for partial penetration groove tec welds are elso included.1.3 Thi

33、s standard is intended to furnish continuous double fillet WCld sizing criteriabased on specific design requirements; it is not intended to furnish strength values foruse in determining design or allowable working loads.2. REFERENCED DOCUMENTS2.1 The issues of the followlng documents in effect on th

34、e date of invitation forbids form a part of this standard to the extent specified herein.GOVER1W4EIJTALSTANDARDMIL-STD-418 - Mechanical Tests for Welded Joints.(Copies of specifications, standards, drawings, and publications required by suppliersin connection with specific procurement functions shou

35、ld be obtained from the procuringactivity or as directed by the contracting officer. )NONGOVERNMENTALPUBL1CAI1ONAMERICAN WELDING SOCIETY (AWS)A3.O - Terms and Definitions.(Application for copies should be addressed to the American Weldlng Society, Inc.United Engineering Center, 345 Last 47th Street,

36、 New Yori.,ilY10017.)(Technical society and teclmical association specifications and standards are generallyavailable for reference from libraries. They arc also distributed among technical groupsand using Federal agencies. )3. TERNS, DEFINITIONS, AIIDSY!IBOLS3.1 The terms and definitions of AWS A3.

37、 apply to this standard.3.2 The following symbols arc used in this standard:1 - Area of base metal subjected to Fl, square inches.2 - Area of weld subjected to F2, square inches.B- Base leq or depth of bevel, inches.CF - Computation factor.D- Defective width of the weld in shear, inches.e- efficienc

38、y of joint.1 - Transverse force on base cetal, pounds.2 - I.anqitudinal force on welds, pounds.3 - Fillet weld strcnqth per linear inch, pounds/incll.L- Lenqth of welded oint, inches.1 - Ultimate tensile strenath of weaker menLer, pounds per suare inch (psi).2 - Shear strength of weld metal, psi.1Pr

39、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-MIL-STD-1628 (SHIPS)28 June 1974s - Fillet Weld size.1 - Thickness of weaker metier (T or TB), inches.T- Thickness of passing member, inches.B - Thickness of web member, inches.z- Land width (to nearest 1/1

40、6), incles.4. GENEIWL REQUIRE!lEIJTS4.1 Joint efficiency shall be based on the strenqth of tileweaker member being joined(that member which has the lowest product of thickness times ultimate tensile strength).4.2 The strength of continuous double-fillet welded joints shall always be based onthe long

41、itudinal shear strength of the base metal-filler metal combination. Where acceptablematerials are used which are not covered lJythxs standard, testing and utilization shall bein accordance with 5.1 through 5.1.5.2 and 5.5 through 5.5.4.1.5.4.3 Where it can be shown from a desiqn standpoint that the

42、thickness of the weakermember joined is greater than that required to provlcle the necessary strengthweld size may be reduced accordingly to provide a weld joint efficiency basedrequired weaker member thickness.4.4 Applicability. This standard contains information pertaining to fi.base metal comblna

43、tlons not covered by all fabrication documents. Therefore,fabrication document shall specify or govern the acceptability of filler meta,metal cotiinations.5. ULTAIL REOUI1:L!WNTS5.1 Fillet weld table and chart description and usage. the filleton the actualler metal andthe applicableand base5.1.1 Gen

44、eral. Tables I through III and a group of charts (figures 1 through 40) areprovided for determining base metal strength, filler metal strenqth, computation factors,and weld size for a given base metal and filler metal combination.5.1.1.1 Continuous double fillet weld sizes for a given joint efficien

45、cy are basedupon tlcload carrying capacity of tlkeweaker member and the shear strength of the fillerk-tal (tli weaker mefibet beinq tilebase metai with tllcsmallest product of ultimate tensilestrength times thickness). The base metal combinations listed in table III are listed withthe weaker member

46、dcsiqnated first; therefore, each Last metal combination is listed twice.5.1.1.2 The computation factors shown on the figures are analogous to a consnonde-nominator and permit the use of fewer efficiency charts as the charts are drawn for a compu-tation factor rather than a base metal and filler met

47、al combination. AS can be seen, anumber of base inctal/filler metal combinations have equivalent computation factors.5.1.1.3 Fillet weld strenqths, sizes, and efficiencies given in table III and figures1 through 40 are for continuous doul,le fillet welds of qood production quality.5.1.2 Base metal u

48、ltimate tensile stren th. Table I lists the ultimate tensile strengthof the base =lercc? in this standble I is intended to be used in computingthe weaker member of the base metal combination to be joined. The values given in table Iare common minimum plate values for each type of material represente

49、d. Certain materialspecifications may have differing minimum values. If large differences are encountered,eferto 5.2 for figurinq fillet weld sizes and efficiencies by direct calculation.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-MIL-sTD-1628 (SHIPS)28 June 1974Table I - Base metal tensile s