1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 02 15 A1 - N-STATUS No replacement named S. Ryzyi, NA 2003 09 18 Revised Para 3.0 inserted; para 3.1, 3.6 and 4 deleted 1989 06 28 SM/ER5963TC Released K. Thurgood; J. Lines, EAO; J. A. Ferrari, NAAO Printed copies are uncontrolled Copyri
2、ght 2010, Ford Global Technologies, Inc. Page 1 of 2 ALUMINIUM ALLOY - BRIGHT ANODISING, IMPROVED WSD-M2A147-A1 APPEARANCE - SHEET AND STRIP NOT TO BE USED FOR NEW DESIGN WSD-M2A147-A2 1. SCOPE The materials defined by these specifications are aluminum-magnesium alloys that provide excellent bright
3、anodizing qualities. 2. APPLICATION These specifications were released originally for bright anodized exterior trim components where improved appearance is required. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys
4、Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 CHEMICAL COMPOSITION The chemical composition of any alloy specified on the engineering drawing shall conform to the requirements of SAE and/or Aluminum Association standards. 3.3 MECHANICAL PROPERTIES (ASTM B557M) ALLOY TYPE ULTIM
5、ATE TENSILE YIELD STRENGTH STRENGTH ELONGATION (MPa) (MPa) (%) A1 220 min. 160 min. 10 min. A2 * * * * Although minimum properties are not required, typical properties are shown in clause 5.1. 3.4 COLOR AND BRIGHTNESS Components fabricated from these materials shall satisfy the requirements of the s
6、tyling master, established for each part. 3.5 PERFORMANCE All materials to these specifications shall be suitable for bright anodizing to meet the performance specification specified on the engineering drawing. ENGINEERING MATERIAL SPECIFICATIONWSD-M2A147-A1/A2 Printed copies are uncontrolled Copyri
7、ght 2010, Ford Global Technologies, Inc. Page 2 of 2 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications. 5.1 TYPICAL MECHANICAL PROPERTIES FOR ALLOY TYPE A2. Ultimate Tensile Strength 170 MPa Yield Stren
8、gth 135 MPa Elongation 12% Variations in mechanical properties will occur, depending on the temper designated and the alloy selected. 5.2 APPROVED ALLOYS AND TEMPERS A1 A2 5552 H 25 5257 X 5457 X 5557 X 5657 X X- denotes that the temper must be specified on the engineering drawing to obtain desired forming characteristics and mechanical properties. 5.3 ALLOY PURITY The alloys in 5.2 are higher purity than 5250, 5252, and 5351. See WSD-M2A146-A1/A4.
