STP647

    Bending and Springback of Aluminum Alloy Sheet and Plate

    Published: Jul 1978


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    Abstract

    A practical method was developed to predict the minimum bend radius and the amount of springback of aluminum alloy sheet and plate. Analytical equations describing the mechanics of bending were used and were correlated with extensive 90-deg air bend test results of alloys 2024-T3, 3003-H14, 5052-H32, 5083-O, 6061-O, 6061-T4, 6061-T6, and 7475-T6. The method utilizes the fracture strain obtained from a bend test or tension test in the minimum radius prediction and the mechanical properties obtained from a tension test in the springback prediction.

    Keywords:

    bending, springback, aluminum, sheet, plate, mechanical properties, fracture properties, bend tests, tension tests, formability


    Author Information:

    Rolf, RL
    Senior engineer and group leader, Aluminum Company of America, Alcoa Center, Pa

    Patrick, EP
    Senior engineer and group leader, Aluminum Company of America, Alcoa Center, Pa


    Paper ID: STP30046S

    Committee/Subcommittee: E28.02

    DOI: 10.1520/STP30046S


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