1、STD.AECMA PREN 4401-ENGL 1999 LOL23LL 00174L7 471 II AECMA STANDARD prEN 4401 NORME AECMA Edition P I AECMA NORM December 1999 PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Gulledelle 94 - 6-1200 BRUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 1 I ICs: 49.030.60 Edit
2、ion approved for publication 1999-1 2-31 Descriptors: aircraft industry, aircraft equipment, rivet, titanium alloy, specification, characteristic, dimension, mass, dimensional tolerance, surface treatment, designation, marking Comments should be sent within six months C3 Chairman after the date of p
3、ublication to Gulledelle 94 AECMA Mr Visconti B-1200 BRUXELLES ENGLISH VERSION Aerospace series Lockbolts, protruding head, sheartype, close tolerance, in titanium alloy TI-P64001, with aluminium pigmented coating, metric series Classification: 1 I00 MPa (at ambient temperature) / 315 OC Srie arospa
4、tiale Luft- und Raumfahrt Rivets bague sertie, tte cylindrique, cisaillement, tolrance serre, en alliage de tine TI-P64001, srie mtrique Classification : 1 100 MPa ( temprature ambiante) I315 OC Paniete, mit Universalkopf, Schertyp, aus Titanlegierung TLP64001, mit Aluminium pigmentierter Beschichtu
5、ng, Klasse: I I00 MPa (bei Raumtemperatur) I 31 5 OC avec revtement alumino-organique, metrische Reihe This “Aerospace Series” Prestandard has been drawn up under the responsibility of AECMA (The European Association of Aerospace Industries). It is published on green paper for the needs of AECMA- Me
6、mbers. It has been technically approved by the experts of the concerned Technical Committee following comment by the Member countries. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functio
7、nally, without re-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the OMcial Services of the Member countries it will be submitted as a draft European Standard to CEN (European Commiffee for Standardization) for form
8、al vote. Page 3 prEN 4401 : 1999 STD-AECMA PREN 4401-ENGL L999 = LOL231L 0017418 328 D 1 Scope This standard specifies the Characteristics of lockbolts with protruding head, sheartype, close tolerance, in titanium alloy TI-P64001, with aluminium pigmented coating, metric series, for use in aerospace
9、 applications. Classification : 1 100 MPa 1) / 315 “C 2) In both versions, .e. with and without pintail these lockbolts fulfill the same function when installed and are statically / dynamically equivalent. They are intended to be used with collars to EN 4174 or EN 4175. 2 Normative references EN 242
10、4 EN 4174 EN 4175 EN 4176 EN 4474 MIL-L-87132B TR 3775 Aerospace series - Marking of aerospace products Aerospace series - Collars, swage locking, sheattype, in aluminium alloy 2024, anodized or chromated, metric series 3) Aerospace series - Collars, flanged swage locking, sheartype, in titanium TLP
11、99002, metric series 3) Aerospace series - Lockbolts, 100“ countersunk normal head or protruding head, tension- / sheartype, close tolerance, in titanium alloy TLP64001 , anodized or with aluminium pigmented coating - Collars in titanium TLP99002 or aluminium alloy 2024 - Metric series - Technical s
12、pecification 3) Aerospace series - Aluminium pigmented coating - Coating methods 3) Lubricant, Cetyl Alcohol, l-Hexadecanol, Application to Fasteners 4) Aerospace series - Bolts and pins - National materials 5) 3 Required characteristics 3.1 Configuration - Dimensions - Masses See figure I and table
13、s I and 2. Dimensions and tolerances are expressed in millimetres and apply after surface treatment but tolerance on shank diameter before coating shall also be specified. 3.2 Materials TR 3775 (titanium alloy, strength class 1 100 MPa) 3.3 Surface treatments EN 4474 Lubrication with cetylic alcohol
14、 (chlorine free) according to MIL-L-87132 1) Minimum tensile strength of the material at ambient temperature 2) Maximum temperature that the iockboit can withstand without continuous change in its original characteristics, after return to ambient temperature. The maximum temperature is determined by
15、 the material. 3) Published as AECMA Prestandard at the date of publication of this standard 4) Published by: Department of Defense (DoD), the Pentagon, Washington, D.C.20301, USA 5) Published as AECMA Technical Report at the date of publication of this standard previous page is blank STD-AECMA PREN
16、 4403-ENGL 3999 1032311 0037439 264 m Page 4 prEN 4401 : I999 Diameter code 040 050 060 080 1 O0 Values in micrometres apply prior to surface treatment. 13 c DI 02 4 4 L2 4 K R nom. Toi. before after 0 coating coating -031 max. max. max. max. min. max. min. 4 8,74 3,88 1,65 2,95 4,6 1,5 1,25 9,83 4,
17、89 2,18 3 5 1,7 1,45 0,65 0,4 - 0,030 - 0,010 -0,045 -0,035 6 12,37 5,89 2,77 4,12 6,15 1,93 1,68 15,47 7,88 3,58 5,49 8,4 2,18 1,8 0,75 0,5 , -0,033 -0,013 10 -*Oa 18,42 9,88 4,34 6,17 10,6 2,56 2,18 1.6/ Lockbolt, 1 3 I 2 7w H I 5 I I I -tl 7rfl Q QI Lockbolt, version S without pintail (stumptype)
18、 Key 1 Location of manufactures symbol 2 3 Predetermined breaking point 4 Marking 5 6 Lightening hole 7 Drill start Sealant escape groove option: code G Groove section at manufacturers option Figure 1 Table I STD.AECMA PREN 4401-ENGL 1999 10123Ll 0017420 T8b prEN 4401: 1999 Table 2 Diameter code Len
19、gth Grip length code I bl,L over I to 100 10 10 160 16 14 180 I 18 I 16 I 18 I 240 24 260 26 24 26 320 340 34 32 34 40 420 I 42 I 40 I 42 480 I 48 I 46 I 48 500 I 50 I 48 I 50 a only. Mass reduction for version “S“ = 5%. Average is depending of grip length. Measured from the bearing surface under th
20、e head to the end of full cylindrical portion of shank. Approximate values (kgll O00 installed pieces without collar), calculated on the basis of 4,45 kg/dm3, for information purposes Page 6 prEN 4401: 1999 Number of this standard Lockbolt version 6) (see figure 1) Diameter code (see table 1) STD-AE
21、CMA PREN 4401-ENGL 1999 m 1012311 0017421 912 m NOTE If necessary, the code 19005 shall be placed between the description block and the identity block. 5 Marking EN 2424, style C (see figure 1). 6 Technical specification EN 4176 6) If it is not intended to define the version in the documents (with or without pintail, depending on whether riveting will be manual or automatic), it is not necessary to give a code letter. However, the version has to be clearly indicated in the purchase order.
