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METHOD FOR TRANSFORMING AL-CU-LI ALLOY SHEETS IMPROVING FORMABILITY AND CORROSION RESISTANCE

机译:改变al-cu-li合金板的方法,以改善成形性和耐腐蚀性

摘要

A method for producing a rolled product 0.5 to 10 mm thick made from an aluminum alloy comprising, in particular, copper and lithium, in which, after solution annealing and quenching, a short heat treatment is carried out in which the sheet reaches a temperature of between 145° C. and 175° C. for 0.1 to 45 minutes, the speed of heating being between 3 and 600° C./min. The sheet obtained at the end of the method according to the invention has high corrosion resistance and is capable of being shaped for producing a structural element for an aircraft, in particular an aircraft fuselage skin.
机译:一种由特别是包括铜和锂的铝合金制成的0.5至10mm厚的轧制产品的制造方法,其中,在固溶退火和淬火之后,进行短时热处理,其中片材达到200℃的温度。在145℃至175℃之间在0.1至45分钟内进行加热,加热速度在3℃至600℃/分钟之间。在根据本发明的方法结束时获得的片材具有高的耐腐蚀性,并且能够被成形以生产用于飞机,特别是飞机机身蒙皮的结构元件。

著录项

  • 公开/公告号EP2984195A1

    专利类型

  • 公开/公告日2016-02-17

    原文格式PDF

  • 申请/专利权人 CONSTELLIUM ISSOIRE;

    申请/专利号EP20140721432

  • 发明设计人 SIGLI CHRISTOPHE;BES BERNARD;EBERL FRANK;

    申请日2014-04-07

  • 分类号C22C21/12;C22C21/16;C22F1/057;

  • 国家 EP

  • 入库时间 2022-08-21 14:49:14

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