由2xxx系列合金生产高能液压成形结构的方法

文档序号:589528 发布日期:2021-05-25 浏览:24次 >En<

阅读说明:本技术 由2xxx系列合金生产高能液压成形结构的方法 (Method of producing high energy hydroformed structures from 2xxx series alloys ) 是由 P·迈耶 S·科斯拉 A·伯格 S·M·斯潘戈 A·H·巴赫 于 2019-09-04 设计创作,主要内容包括:本发明涉及一种产生集成整体式铝结构的方法,所述方法包括以下步骤:(a)提供预定厚度为至少3mm的铝合金板,其中,铝合金板为以F回火或O回火提供的2xxx系列合金;(b)铝合金板任选地预机械加工成中间机械加工结构;(c)该板或任选的中间机械加工结构抵靠刚性模具的成形表面进行高能液压成形,所述刚性模具的轮廓按集成整体式铝结构的所需曲率,高能液压成形使该板或中间机械加工结构适应成形表面的轮廓,达到单轴曲率和双轴曲率中的至少一个;(d)高能液压成形结构的固溶热处理和冷却;(e)机械加工;以及(f)最终的集成整体式铝结构进行老化处理。(The invention relates to a method of producing an integrated monolithic aluminium structure, said method comprising the steps of: (a) providing an aluminium alloy sheet having a predetermined thickness of at least 3mm, wherein the aluminium alloy sheet is a2 xxx-series alloy provided in an F temper or an O temper; (b) optionally pre-machining the aluminum alloy sheet into an intermediate machined structure; (c) the sheet or optional intermediate machined structure is high-energy hydroformed against a forming surface of a rigid mold having a profile following a desired curvature of the integrated monolithic aluminum structure, the high-energy hydroforming conforming the sheet or intermediate machined structure to the profile of the forming surface to at least one of uniaxial curvature and biaxial curvature; (d) solution heat treatment and cooling of the high energy hydroformed structure; (e) machining; and (f) aging the final integrated monolithic aluminum structure.)

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