1、AECMA PRENrb052 75 10123LL 00087fl2 7T2 E AECMA STANDARD prEN 6052 NORME AECMA Edition P 1 AECMA NORM June 1995 Edition approved for publication 1995-06-30 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - B-1200 BRUXELLES - Tel. (32) 2 775 81 10 - Fax. (32) 2 775
2、 81 1 1 Comments should be sent within six months after the date of publication to AECMA Gulledelle 94 B-1200 BRUXELLES ICs : Descriptors : ENGLISH VERSION Srie arospatiale Rivet -_Bague - Systme en alliage daluminium cisaillement-type srie en inches Spcification technique Aerospace series Rivets -
3、Collar - System in aluminium alloy shear type inch series Technical specification Luft- und Raumfahrt Paniet - SchlieBring - System aus Aluminiumlegierung Schertyp Zlige Reihe Technische Lieferbedingungen This “Aerospace Series“ Prestandard has been drawn up under the responsibility of AECMA (The Eu
4、ropean Association of Aerospace Industriesl. It is published on green paper for the needs of AECMA-Members. It has been technically approved by the experts of the concerned Technical Committee follo wing comment by the Member countries. Subsequent to the publication of this Prestandard, the technica
5、l content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPSj and formal agreement of the Official Services of the Member countries it
6、 will be submitted as a draft European Standard to CEN (European Committee for Standardizationj for formal vote. Nota - Extra copies can be supplied by B.N.A.E. - Technopolis 54 - 199, rue Jean-Jacques Rousseau - 921 38 ISSY-LES-MOULINEAUX CEDEX AIB/TF3 Chairman M. Luck aecma 199 Page 2 prEN 6052 :
7、1995 Contents list 1 Scope 2 Normative references 3 Definitions 4 Certification and quality assurance 5 6 7 Delivery Requirements for rivets in aluminium alloy 7050T73 Requirements for collars in aluminium alloy 3003 and 6061 AECMA PREN*b052 95 I l10I123lIL 0008704 575 PB Page 3 prEN 6052 : 1995 1 S
8、cope This specification defines the requirements of shear type 100“ countersunk reduced head and protruding head close tolerance rivets in aluminium alloy 7050773 and collars of aluminium alloy 3003 ( H12 to H17 condition ) and collars of aluminium alloy 6061“ for use as permanent fasteners in shear
9、 applications. 2 Normative references ANSI 846.1 ASTM E18 ASTM E92 EN2424 EN6050 EN6051 EN6054 MIL-C-5541 MI L-H-6088 MlL-1-25135 MI L-L-87 1 32 MIL-STD-I 05 MIL-STD-129 MI L-STD-13 1 2 MI LSTD-6866 NAS527 NAS1413 QQ-A-430 Surface texture Rockwell Hardness Vickers Hardness Aerospace series - Identif
10、ication Marking of aerospace products Aerospace series - Rivets, 100“ countersunk reduced head, close tolerance, shear type, in aluminium alloy 7050, chemical film, inch series Aerospace series - Collars, swage locking, shear type, in aluminium alloy 3003, chemical film, inch series Aerospace series
11、 - Collars, swage locking, shear type, in aluminium alloy 6061, chemical film, inch series i) Chemical film and chemical film materials for aluminium and aluminium alloys 2) Heat treatment of aluminium alloys 2, inspection materiais, penetrants 2) Lubricant, cetyl alcohol, 1 hexadecanol, application
12、 to fastener *) Sampling procedures and tables for inspection by attributes *) Marking for shipment and storage 2, Fastener test methods 2, Inspection, liquid penetrant 2, Inspection procedure for flush fasteners 3, Pins and collars, swage locking 3, Aluminium alloy rod and wire, for rivets and cold
13、 heading 4, : .I I, 3 Definitions The close tolerance rivets and collars covered by this specification shall be of the types, sizes, configurations and materials designated by the part numbers specified on the applicable standards which refer to this specification. 4 Certification and quality assura
14、nce 4.1 Qualification tests Qualification requirements shall consist of tests per table 4 and 5. Evidence shall be submitted, satisfactory to the pur- chaser, that the supplier has produced fasteners of the same basic part number ( excluding grip designation ), diameter and material as those for whi
15、ch quotations are asked. This fastener shall meet the requirements of this specification. 4.2 Quality conformance inspection Quality conformance inspection shall consist of tests per table 4 and 5 sampling plan per table 6 and 7. 4.3 Quality control records Quality control records pertaining to the
16、specific work order, lot number or job number shall be available for inspection by the purchaser for a period of 3 years after manufacturers final inspection date. 4.4 Lot llise 5.10 :haracteristic in break load Table I (concluded) Technical requirement Table 3 values are applicable. Ater the evalua
17、tion of the pin break loads head dishing of flush head pins must not exceed 0,076 mm. Cracks are not allowed in any location of the pin. Inspection and test method Test shall be performed with the 1 O0 degrees head of the fastener seated in a tension test fixture having a hole size of 4,153 to 4,178
18、 mm for diam. code 040 and 4,813 to 4,838 mm for diam code 050. The test plate countersink must have a 2 degree angular misalignment from the hole centerline. The presence of cracks shall be determined by fluorescent penetrant inspection per MlL-STD-6866, method A or 8, sensitivity level 2 or higher
19、. The penetrant materials used shall be per MlL-1-25135. Examine all surfaces at I O x to 30 x magnification. Penetrant in- spection shall be performed prior to all surface coating and lubricating. Q= lualification A= cceptance Q A Sampling Per table 4 and 7 r Page 7 prEN 6052 : 1995 Inspection and
20、test method 6 Requirements for collars in aluminium alloy 3003 and 6061 The requirements for 3003 and 6061 aluminium alloy collars, shear type are given in table 2. These requirements complement the requirements of all other standards or specifications referenced in the document of the rivet, and ma
21、y be overridden only when specially instructed in the definition document. Inspection tests given in tables 1 and 2 are mandatory ( except as noted ) on each lot as defined in 4.3, for the fastener manufacturer. Q= 7 A= 1 Qualification Sampling Accedance Table 2 Clause Characteristic construction 6.
22、2 Materials 6.3 6.3.2 6.4 6.4.1 6.5 6.5.1 i Dimensions General dimensions Surface texture Protective treatment Finish Mechanical properties Ultimate tensile strength 6.2.1 1 Lubricants Q A Per table 5 and 6 6.5.2 Preload t 6.5.3 Test bolts Q A I Per table 5 and 7 6.5.4 Technical requirement Hardness
23、 Per table 5 Conventional Q I A 1 measuring methods I I As described by collar manufacturer to assure produc- specifications. per applicable specification and visual examination Per standard part drawings referenced within this specification 3003 aluminium alloy ( H12 to HI7 condition ) or 6061 alum
24、inium allov T7 condition . Conventional measuring methods _. Chemical composition per QQ-A430 Per standard part drawings The ultimate tensile strength of the installed collar shall be equal to or greater than that shown in table 3 in minimum and maximum grip Visual examination per ANSI 846.1 Per app
25、licable specification and visual examination Test - No.8 of MIL-STD-1312 for tensile test The preload of the installed collar shall be ?qual to or greater th,qn that shown in table 3 properties are specified in table 3 -or 6061T7 aluminium collars 30T hardness ;hall be 47 to 57 ( 86 to 111 Vickers 1
26、5 kgf ). or 3003 ( H12 to H17 ) aiuminium collars 7ardness to be 50 to 62 Rockwell 15 T Test -No.l6 of MIL-STD-I 312 Not applicable ASTME18 Rockwell hardness ASTME92 Vickers hardness I MIL-H-6088 Intergranular corrosion per NASI413 para.(a) 3.4.6 and table E Per table 5 i and6 A A Pe;,db6e5 Per tabl
27、e 5 I Pertable5 A I and7 applicable Per table 5 and 7 Metallurgical examination Remarks see page 8 continued Page 8 prEN 6052 : 1995 - lause 6.6.1 6.7 6.8 Jharacterictic liscontinuities Product identification Delivery Table 2 (concluded) Technical requirement Discontinuities permitted as shown in fi
28、gure 4. No cracks are allowed in any location Per standard pari drawings referenced within this specification See section 7 Inspection and test method Visual and conventional measuring methods. The presence of cracks and discontinuities such as laps seams and inclusions shall be determined by fiuore
29、- scent penetrant inspection per MlL-STD-6866, method A or B, sensitivity level 2 or higher. The penetrant materials used shall be per MIL-1-25135, examine all surfaces at 1 O x to 30 x magnification penetrant indications shall be evaluated metallurgical examination cross sections at 50 x to 60 x ma
30、gnification. Fluorescent penetrant inspection campte shall be per table U penetrant in spection shall be performed prior to anodizing. Visual examination Visual examination Q= Jualification A= 4cceptance Q A Q A A Sampling Per table 5 and 7 Per table 5 and 6 Not applicable 1) Testing will be perform
31、ed in minimum and maximum grip for qualification purposes. Tensile testing for production lot ac- ceptance will be performed in minimum grip. The condition of collar for testing or qualification shall be in accordance with the customer standard. m I,OI,LL oooum 212 m Page 9 prEN 6052 : 1995 Minimum
32、l) 1 Rivet double shear ( kN 1 7,62 EN6050-040 10,25 1 EN6050-050 7 Delivery 7.1 All fasteners shall be tightly packaged in unit type containers. Ample packing material shall be installed in each unit container to assure protection of parts from abrasion, chafing, damage, etc. during handling, trans
33、portation and storage. 1 O kg maximum weight allowed per unit container. 7.2 ._, Test collar 2, Min. ult. Min. Pin break load tensile preload (kN) (kN) max. min. EN6051440 2,20 1 ,o0 3,11 2,67 EN6054450 3.34 1.45 4.23 4.00 ,.I:. . Fasteners for one inspection lot and part number shall be packaged in
34、 unit packages. An assortment of unit packages may be in larger packages. 25 kg maximum weight allowed (corrugated fiberboard boxes) and 75 kg maximum weight allowed ( wooden boxes ) per larger package. Table 1 Table 1 Pin break load Table 1 Shear strength Tensile strength Table 3: Shear load, tensi
35、le load, preload and pin break load properties of rivet with test collars ( shear type, aluminium alloy, EN6051 and EN6054 ) for metal application. X X X X X X X O X X X X X X X O X X X X X X X O Rivet diam. code Discontinuities Micro structure Table 1 X X X O Table 1 X x X O O40 050 1) Min. shear s
36、trength of fastener is to be performed on pins without cetyl alcohol lubrication applied 2) The condition of the test collar shall be in accordance with the collar standard Table 4: Qualification test and sampling plan - Rivets Allowable defect 1 Defined in Samples Type of test I table 2 13 14 15 16
37、 17 18 19 I10 - I 1012311 0008690 350 Defined in table Type of test Page 10 prEN 6052 : 1995 Allowable defect Samples 1 12 13 14 15 16 17 18 19 110 Table 5: Qualification test and sampling plan - Collars Dimensions Table 2 Table 2 Finish and lubrication Identification Table 2 X X X X X X xx X X O X
38、X X X X X X X xx O X X X X X X X X X X O Design and construction Tensile strength Table 2 Preload Table 2 X X X X X X X X Discontinuities Microstructure Hardness I Table2 I i I I Metallurgical examination Table 2 Table 2 X X X Table 2 perties 1) The tensile strength and preload tests may be run conc
39、urrently. Independant test samples or tests are not requi- red. Table 6: Quality conformance tests of rivet and collar sampling plan per MIL-STO-105 and classification of dimensional characteristics Classification Major 13 YO AQL level II normal sample Minor A 2,5 % AQL level II normal sample Minor
40、840 % AQL level II normal sample Level $2 normal 1,5 Yo AQL Level S-2 normal Level S-3 normal 2.5 Yo AQL 4,O Yo Requirement and test method Per table 1 as applicable to the pin type to be inspected Per table 2 as applicable to the collar type to be inspected Bolts Dimensional characteristic Shank di
41、ameter and grip length.Length to end of locking grooves R radius ( head to shank fillet ) Groove major diameter Head protrusion ( flush head ) Identification Squareness of head bearing surface to shank for protruding or flush head Head Cocking for flush head Concentricity of head to shank Protruding
42、 head diameter and thickness Head angle for flush head . Surface texture, surface finish and lubricant. Flush head land width Bolttail length collars Surface finish and lubricant Dimensions Visual , I. ! I 1012311 0008b91 097 6 Sample Acceptance size number Lot size Requirement and test method Page
43、11 prEN 6052 : 1995 Rejection numbers Per table 1 and 2 as applicable to the rivet or collar to be inspected Under 500 4 O 1 5 O 1 1301 thru 3200 6 O 1 7 O 1 3201 thni 8001 and over 10 O 1 thru 1300 Table 8: Rivet discontinuities - Discontinuities and surface contamination 7050T73 aluminium *) No di
44、scontinuities Head to shank fillet, root of locking grooves I I (mm) 1 Max. depth normal to surface Location Permissible condition 0,000 Any location except head to shank fillet or root of locking grooves Seams not extending into head to shank fillet or root of locking grooves Bearing surface of hea
45、d, grip or shank not applicable Inclusions not indicative of unsatisfactory quality of affecting installation 3) 4) 0.127 I Non-bearing surface of head 1 Laps, seams, nicks or gouges I 0,254 I I Locking grooves 1 Laps and surface irregularities I 0,127 I Surface irregularities non-pressure side : Pe
46、rmissible see table 6 Figure 1 : Rivet discontinuities Page 12 prEN 6052 : 1995 chined or rolled configuration Cut metallurgical specimens for rivet as shown through section A-A and B-B. Machined grooves- head shank section A-A only. Form rolled grooves - section A-A and &B. Surface etch as needed f
47、or microscopic examination. Figure 2: Metallurgical specimens Rmin = 0,25 mm c-c X turned Cold formed or milled sealant escape groove straight or diagonal selective by manufacturers option 90“f 5“ R= 0,076 goo+ 5“ Rolled slot Rolled slot with a pitch 4xD,i, Permissible angularit of vent slot from ce
48、nter line 0.1 i mm max. Sealant groove to be below root radius of lock groove form and extend into the breakneck form for rivets and through the end of the form for stumpsas shown, except that, the breakout at the 1 st groove nearest the shank must be through at least half the depth of the groove. F
49、igure 3: Slot dimensions Table 9: Slot dimensions I 040 1 050 I Diameter code I I A(max) mm I 0,40 I 0,65 I I I B mm 0,s - 0,66 I i LOL23LL 0008673 7bT H Page 13 prEN 6052 : 1995 -. 7) 8) 1) Punchout interruption in continuity of this surface is permissible. 2) Permissible punchout flash not to exceed 0,38 mm in length ( permissible on either end of double ended col- 3) Permissible punchout burr permitted is indicated and limited on individual collar standards. 4) Circumferential laps in the ends of collars are acceptable fabrication characte
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