1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 02 15 N-STATUS No replacement named S. Ryzyi, NA 2003 09 11 Revised Para 3.0 inserted; para 3.6 and 4 deleted 1981 11 09 Released B2A-4715/CAL1-DR-591236-1 Printed copies are uncontrolled Copyright 2010 Ford Global Technologies, Inc. Page
2、 1 of 4 ALUMINUM, EXTRUSION AND SHEET ALLOY ESB-M2A109-B NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification can be either an extruded or sheet product, heat treatable aluminum alloy, SAE AA 7029. 2. APPLICATION This specification was released originally for bright anod
3、ized aluminum bumpers. CONTROL ITEM - AFFECTS GOVERNMENT REGULATION COMPLIANCE OR CRITICAL VEHICLE FUNCTION AND MUST COMPLY WITH APPLICABLE REQUIREMENTS OF FORD Q-101 OR MANUFACTURING PRACTICE 102 - AREAS MARKED () ARE CONTROL ITEM CHARACTERISTICS - CHANGE IN DESIGN, COMPOSITION OR PROCESSING FROM T
4、HE PART PREVIOUSLY APPROVED FOR PRODUCTION REQUIRES PRIOR PRODUCT ENGINEERING APPROVAL. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 CHEMICAL
5、COMPOSITION The determination of chemical composition can be made in accordance with chemical (Method ASTM E 34), spectrochemical (Methods ASTM E 101, E 227 or E 607) or x-ray fluorescence. In case of dispute, the umpire method shall be ASTM E 34. Silicon 0.10 max Iron 0.12 max Copper 0.50 - 0.9 Man
6、ganese 0.03 max Magnesium 1.3 - 2.0 Zinc 4.2 - 5.2 Titanium 0.03 max Other Each 0.03 max Total Others 0.10 max Aluminum Remainder 3.2 MECHANICAL PROPERTIES, T6 Temper (ASTM B 557) 3.2.1 Yield Strength, min 49,000 psi (0.2% offset) (338 MPa) ENGINEERING MATERIAL SPECIFICATION ESB-M2A109-B Printed cop
7、ies are uncontrolled Copyright 2010Ford Global Technologies, Inc. Page 2 of 4 3.2.2 Tensile Strength, min 55,000 psi (379 MPa) 3.2.3 Elongation in 2 in (50 mm), min 9% 3.2.4 Fracture Properties Conformance to this requirement shall be demonstrated by testing to one of the following test methods, par
8、a 3.2.4.1 or 3.2.4.2. 3.2.4.1 Reduction of Area, min 20% (ASTM B 557) 3.2.4.2 Fracture Toughness Index For the purpose of this specification “Fracture Toughness Index“ shall be defined as the difference between the yield strength and the fracture strength (yield strength-fracture strength), where fr
9、acture strength is the instantaneous load at failure divided by the original cross sectional area. 3.2.4.2.1 Initial Material - 158 psi Approval (- 1089 kPa) 3.2.4.2.2 Production Requirements: Unless otherwise indicated on the engineering drawing, the following requirement is to be met for each prod
10、uction lot on test specimens taken from locations indicated on the engineering drawing. Test Method: A part randomly selected from the production lot shall be evaluated for “Fracture Toughness Index“. If the value obtained is equal to or less than the value listed in the “Reject“ column for a sample
11、 size of one the lot is rejected. Likewise if the value is equal to or greater than the value listed under the “Accept“ column for a sample size of one the lot is accepted. If the value falls between the “Accept“ and “Reject“ levels a second part is selected at random, tested, and the “Fracture Toug
12、hness Index“ value averaged with that obtained from the first part. This average is then compared with the values for “Accept“ and “Reject“ corresponding to a sample size of 2. This procedure is repeated each time averaging the “Fracture Toughness Index“ values with the preceding values until either
13、 the lot can be accepted or rejected. ENGINEERING MATERIAL SPECIFICATION ESB-M2A109-B Printed copies are uncontrolled Copyright 2010Ford Global Technologies, Inc. Page 3 of 4 Sample Size Accept Reject psi kPa psi kPa 1 - 158 - 1089 - 5229 - 36 053 2 - 1426 - 9832 - 3961 - 27 310 3 - 1848 - 12 742 -
14、3539 - 24 401 4 - 2060 - 14 203 - 3327 - 22 939 5 - 2186 - 15 072 - 3201 - 22 070 6 - 2271 - 15 658 - 3116 - 21 484 7 - 2331 - 16 072 - 3056 - 21 070 8 - 2377 - 16 389 - 3010 - 20 753 9 - 2412 - 16 630 - 2975 - 20 512 10 - 2440 - 16 823 - 2947 - 20 319 11 - 2463 - 16 982 - 2924 - 20 160 12 - 2482 -
15、17 113 - 2905 - 20 029 13 - 2498 - 17 223 - 2889 - 19 919 14 - 2512 - 17 320 - 2875 - 19 822 15 - 2524 - 17 402 - 2863 - 19 740 16 - 2535 - 17 478 - 2852 - 19 664 17 - 2544 - 17 540 - 2843 - 19 602 18 - 2553 - 17 602 - 2834 - 19 540 19 - 2560 - 17 651 - 2827 - 19 491 20 - 2567 - 17 699 - 2820 - 19 4
16、43 For a sample size greater than 20, accept if equal to or greater than -2,694 psi (- 18,574 kPa) reject if less than -2,694 psi (- 18,574 kPa). 3.3 HEAT TREAT PROCESS - “T6“ TEMPER Note: Parts are to be processed individually, and not banded together. . Solution heat treat 482 - 499 C (492 - 491 C
17、 preferred) for 10 to 15 min at temperature. . Water quench from the solution heat treat temperature. Metal temperature to be above 399C when entering the quench. . Form part within 4 h after solution heat treat. Artificial Age: . 1st step 99 +/- 5 C for 5 h at temperature. . 2nd step 163 +/- 5 C fo
18、r 5 h at temperature. All temperatures are metal temperature, not furnace temperature. 3.4 ANODIZING This material shall be capable of conforming to the requirements of ESB-M4P6, Anodic Coating, Bright or Colored for Exterior Aluminum Parts - Increased Blushing Resistance. ENGINEERING MATERIAL SPECI
19、FICATION ESB-M2A109-B Printed copies are uncontrolled Copyright 2010Ford Global Technologies, Inc. Page 4 of 4 3.5 COLOR AND BRIGHTNESS Parts fabricated from this alloy shall meet, in all respects, the styling master established on individual parts by Engineering and Styling. 5. GENERAL INFORMATION
20、The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 TYPICAL MECHANICAL PROPERTIES T6 Temper 5.1.1 Yield Strength 55,000 psi (379 MPa) 5.1.2 Tensile Strength 61,000 psi (421 MPa) 5.1.3 Elongation 15% 5.2 FURNACE ATMOSPHERE A reducing atmosphere should be provided during the solution heat treating to minimize the formation of surface oxides.
