AECMA PREN 2131-1989 Aerspace Series Plates Aluminium and Aluminium Alloys Edition 2《航空航天系列.铝和铝合金薄板2版》.pdf

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1、prEN 2131 CEU : Key words : Edition 2 Aerospace series P1 ates Aluminium and aluminium alloys Srie arospatiale Luft- und Raumfahrt P1 aques P1 atter: Aluminium et alliages daluminium Aluminium und Aluniniumlegierungen DRAFT PROJET E N T W U R F 06521LO689T8 Draft no 3 05 / 89 . Sponsor : C. ROCHEREA

2、U Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-prEM.2131 Page 3 . f- 1 5c.jpe and field of opplication This stataard aziinies the dimensions and tol

3、erances of sheetsin aluminium an0 aluminium allotls used in aerospace constructions. EH 2123 Ell 2:24 Eli 2123 EN 2l26 - I EN 2419 Ei4 2422 EN 2511 EN 2Yi2 El.: 2513 Eli 2626 i EN 5684 EN 2087 EM 2689 EN 2804 EN 2805 kerosxice series - Aluminium alloy 2618A-TG51 - Plates nim c: a - 12000 + 0,20 + 03

4、20 + 0,20 + 0,25 + 0,30 O O O .o O + 0,20 + 0,20 + 0,25 . + 0,30 + 0,35 O O O O O + 0,20 + 0,25 + Us30 + 0,35 + 0,40 O O O O O - 3.3.2 Surface machined sheets The dimensiGns shall be ooreed upon between the manufacturer and the purchaser. 3.4 Dimens i onkl io1 erances 2.4.1 Ttii cknesses S. 4 1.1 Un

5、nachi ned siierts In accordance with iatle 2. Measorements shall be taken at least 20 mm from the edce. Table 2 Dimensions in millimetres Thicknesses b i250 6 5000 + 0,2 Po 1 O O *I 2.4.2 Ui eins Lengths 1 - 5000 + 10 m o Thicknesses 6 . a i 80 80 a 140 a As agreed 10 manufacturer between and 0,2 %

6、1 purchaser 3.4.3 Lonr;+hs Ir! ecccrdsnci :.rith table 4. Table 4 Dimensions in mi 11 imetres 3.5 Geometric tolerances 3.5.1 Squareners 3.5.1.: Method, of measurement Difference in leristh of the ciiagonals AC - 6D. See figure 1. 3.5.1.2 Tolerances In accordmce with table 5. Table 5 i Dimensions in

7、millimet 0652IL0689T8 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN2131 89 W 10123Ll 0002217 2 W prEN 2131 Page G * 3.5.2 Local straightne

8、ss In .accordatice with figure 2. The ciefect may be concave or convex. I Reference lines 3.5.3 F1 a tnes s 3.5.3.1. Unmachined sheets 3.5.3.1.1 Method of measurement Figure 2 The sheet shall be placed OR a flat surface, the concave face oppcsite to this surface. The deviation F due to a bend, ladle

9、s, waviness of edges shall be measured according to figures 3 to 6 using an appropriate apparatus. 4 Figure 3 - Transverse bend 0652IL0689T8 L Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking

10、 permitted without license from IHS-,-,-AECMA PREN2131 87 m LR123Ll 0002218 4 -. prEN 2131 Page 9 1 I I W Figure 4 - Longitudhal bend CI I I W Figure 5 - Ladle Ilfi, p,- * 5 4. Figure 6 - Waviness of edge 0652ILC689T8 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided

11、 by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-AECMA PREN2131 A9 1012311 O002219 b-m s . Thicknesses 6a50 - 50 a 150 prEN 113; Page 10 f cr a chord of : 300 - W W=b W=I 0,3 X W 0,4 X b 0,2 2 1 0,3 X W 0.2 X b 0,2 2 1 3.5.3. i.: Tole

12、rances In accorcnce cith table 6. Table 6 3.5.3.2 Surface machined sheet The sheets shell be plane so that they perrectly Platten on a vaccum table with a depression of 60 KPa evenly distributed on the entire surIace of the sheet. 4 Designation In accordance with EN 3600. 0652IL0619T8 Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with AECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-