1、A.E.C. M.A. STAN DARD NORME A.E.C.M.A. A.E.C.M.A. NORM Edition approved for publication Comments should be sent within six months after the date of publication decision prEN 3151 Issue P 1 January 1988 C8 Chairman DIT PAR LASSOCIATION EUROPENNE DES CONSTRUCTEURS DE MATRIEL AROSPATIAL 88, boulevard M
2、alesherbes, 75008 PARIS -TL. 45-63-82-85 UDC : Key words : ENGLISH VERSION Aerospace series Plain dowels in NI-PI OOHT (Inconel 71 8) Srie arospatiale Pieds de centrage lisses en NI-PI OOHT (Inconel 71 8) Luft- und Raumfahrt Glatte Zylinderstifte aus NI-PI OOHT (Inconel 71 8) This derospace Series p
3、re-standard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the needs of AECMA-Members. It has been technically approved b y the experts of the concerned AECMA Commission following comment by the
4、Member countries. Subsequent to the publication of this pre-standard, the technical 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 Cen
5、tre (NPSI and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for final vote. 18 January 1988 A.E.C.M.A. 88, Ed. Malesherbes M. WILLIAMS 75008 PARIS - FRANCE aecrna 1988 AECMA PREN3151
6、 BB W LO12311 0004929 3 W _I , - Issue P 1 prEN 3151 Page 3 1 This standard defines the characteristics of plain dowels (constant diameter) in nickel base alloy for use at high temperatures. These dowels are mainly used for centering parts inside aeronautical engines. Scope and field of application
7、2 References EN 2404, Heat resisting nickel base alloy NI-P100HT - Solution treated and precipitation treated - Bars - Aerospace series EN 2424, EN.3368, Identification marking of standard fasteners - Aerospace serles Aerospace series- -.Installation of dowels i) 3 . Required characteristics. . 3.1
8、The conf-iguration shail be in accordance with the figure, Dimensions and toleran- ces shall conform with the-values given in the figure and in tables 1 and 2. Conf iguaation - Dimensions - Tolerances ,. 3.2 Surface condition See figure. 3.3, Material Nickei base alloy NI-P100HT in accordance with E
9、N 2404. 3.4. Surface treatment None. . 1) In preparation. 0252MR1087T4 Previous page is blank AECMA PREN3151 BB E 1012311 O004930 T E I Issue P 1 prEN 3151 Page 4 Break sharp edges 0,2 to 0,3 R 0,2 to 0,4 i50 to 200 A -_I. - , v Marking A r- 4- -1 i) L - Figure - Configuration Table 1 Dimensions in
10、mm Diameter Diameter Tolerances . code D o 20 2 030 3 040 4 050 5 4- 0,016 4- 0,010 1-6 + 0,020 + 0,012 060 6 P6 O 70 7 080 8 1 O0 10 + 0,024 + 0,015 A 095 - + 0,l 1 - + 0,2 Geometric defects are limited by the dimensional tolerances. 0252M1087T4 90 :AECtIA PREN3151 88 M 1012311 O004931 L m o 20 Dia
11、meter O30 040 050 O 60 I 070 1 080 1 O0 C Length code 004 006 008 o 10 012 014 016 O 18 020 022 024 026 028 030 032 034 036 038 040 042 044 046 048 050 05 2 054 05 6 058 060 062 064 066 06 8 O 70 0,151 0,202 ie L - +O, 25 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56
12、58 60 62 64 66 68 70 0,342 0,458 Issue P 1 prEN 3151 Page 5 Table 2 I I I I I I 1 0,099 I 0,254 I 0,574 0,690 O , 806 0,922 1,038 1,154 1,270 - 0,817 1,023 1,229 1,435 1,642 1,848 2,054 2,260 2,466 2,672 2,878 1,578 1,900 2,222 2,544 2,867 3,189 3,511 3,833 4,155 4,477 4,799 5,121 5,443 5,765 2,744
13、3,208 3,671 4,135 4,599 5,062 5,526 5,990 6,454 6,917 7,381 7,845 8,308 8,772 9,236 9,700 0252M1087T4 - - 4,373 5,004 5,635 6,267 6,898 7,529 8,160 8,791 9,422 .O, 053 .O, 684 .1,316 .l ,947 .2,578 .3,209 .3 , 840 .4,471 .5,103 .5,734 6,543 7,368 8,192 9,016 9 , 841 10,665 11,489 12,314 13,138 13,96
14、2 14,787 15,611 16,435 17,260 18,084 18,909 19,733 20,557 21,382 22,206 23,030 12,816 14,104 15,392 16,680 17,968 19,256 20 , 544 21,832 23,120 24,408 25 , 696 26,984 28,272 29,560 30,848 32,136 33,424 34,712 36,000 37,289 38,577 39,865 $1,153 $2,441 $3, i29 $5,017 Issue P 1 prEN 3151 4 Designation
15、Each dowel shall only be designated as in the following example : Description block Identity block EN3151-030020 - DOWEL Number of the EN standard 030 = Diameter code (See table 1) 020 = Length code (See table 2) 1 Note : If necessary, the design code S9005 may be introduced between the description block and the identity block. 5 Marking Each dowel shall be marked in the position shown in the figure according to EN 2424, style F. 6 Installation In accordance with EN 3368. 0252MR1087T4
