1、 AECMA STANDARD NORME AECMA AECMA NORM Edition approved for publication Comments should be sent within six months after the date of Dubiication to prEN 6025 Edition P 3 November 1998 AIBITFS Chairman ICs: PUBLISHED BY THE EUROPEAN ASSOCIATION OF AEROSPACE INDUSTRIES (AECMA) Guliedelle 94 - 8-1 200 B
2、RUXELLES - Tel. (+32) 2 775 81 10 - Fax. (+32) 2 775 81 11 Supersedes edition P 2 October 1997 Descriptors: ENGLISH VERSION Aerospace series Plates Aluminium alloy 2024 Close-tolerance flatness Thickness 6 mm 5000 5.2 Geometric tolerances 5.2.1 Squareness 5.2.1.1 See EN 3848 Method of measurement an
3、d symbols 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-,-,-STD*AECMA PREN b025-ENGL 1798 m 101231L OOL5597 850 m Page 6 prEN 6025 : 1998 Length 5.2.1.2
4、Tolerances See table 5. Maximum differences in the length of diagonals for all widths and for thickness Table 5 Dimensions in millimetres Thickness 6 1300 0,0015 x I br 200 0,4 15 1 O00 0,002 x I I 2000 0,001 x I 0,003 x W l) 30as55 1 O00 I5 2000 290 200 b12500 0,002 x b - 5.2.3.1 See EN 3848. 5.2.3
5、.2 Tolerances See table 7 Method of measurement and symbols Table 7 Dimensions in millimetres I I I I I 1) The maximum acceptable deviation for total length and width shall not be exceeded. Copyright Association Europeene des Constructeurs de Materiel Aerospatial Provided by IHS under license with A
6、ECMANot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STD=AECMA PREN b025-ENGL 1798 9 10123LL 0035598 797 M Page 7 prEN 6025 : 1998 delivery code condition of treatment Material standard EN 6000 T351 A 6 Material use condition of treat ment code Material standard EN
7、6000 T35 1 A Description block Identity block Sheet Number of semi-finished standard I Material code see table 8 Size code see table 1 7.2 Example of ordering data Unless otherwise specified, the grain flow direction shall be parallel to the long edge. If the grain flow direction is required to be p
8、arallel to the short edge, the abbreviation FAS shall be added to the dimension of that edge. Description block Identity block Plate I EN6025EN6000T351-50-1 O00 FAS 2000 Number of semi-finished standard LIT T- Number of Material standard and delivery condition or code (see table 8) Thickness a in mm
9、 (see table 1) 1 Width b in mm Flow direction parallel to short edge (if not required use ”-” instead of FAS) Length I in mm 8 Technical specification See EN 6071 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-,-,-
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