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发明公开
CN106048478A 铝锂合金板材的成形强化方法、铝锂合金强化构件和模具 无效 - 撤回

铝锂合金板材的成形强化方法、铝锂合金强化构件和模具
摘要：
本发明提供了一种铝锂合金板材的成形强化方法，包括：将铝锂合金板材放入热处理炉中固溶处理，固溶温度为475‑525℃，固溶时间为30‑45min；将固溶后的所述铝锂合金板材在介质中进行淬火冷却；将淬火后的所述铝锂合金板材在室温下停留60‑180min，随后进行充液拉伸成形；将所获得的所述铝锂合金钣金件放入热处理炉中进行时效处理，时效温度为150‑165℃，时效时间为10‑25h中某一时间，最终得到铝锂合金强化构件。此方法避免了固溶后的热态坯料难以快速转移并快速成形的问题，规定了淬火态板料室温停留时间，避免PLC效应，提高成形质量，对设备要求低，生产效率高，具有很高的工程应用价值。本发明还提供由此得到的铝锂合金强化构件和相应模具。
摘要（英）：

The invention provides a forming and strengthening method for an aluminum lithium alloy plate. The method comprises the following steps: placing the aluminum lithium alloy plate in a heat treatment furnace to perform solution treatment of the aluminum lithium alloy plate, wherein the solution treatment temperature is 475-525 DEG C, and the solution treatment time is 30-45 min; quenching the aluminum lithium alloy plate subjected to solution treatment in a medium; keeping the quenched aluminum lithium alloy plate at room temperature for 60-180 min, and then performing hydraulic stretch forming of the quenched aluminum lithium alloy plate; and placing an obtained aluminum lithium alloy sheet part in the heat treatment furnace to perform aging treatment of the aluminum lithium alloy sheet part to finally obtain a strengthened aluminum lithium alloy component, wherein the aging treatment temperature is 150-165 DEG C, and the aging treatment time is 10-25 h. The method avoids the problem of difficulty in quick transferring and forming of the hot blank obtained after solution treatment, sets the residence time of the quenched plate blank at room temperature, avoids a PLC effect, improves the forming quality, and has low equipment requirements, high production efficiency and a very high engineering application value. The invention further provides the strengthened aluminum lithium alloy component obtained according to the method and a corresponding die.

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