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    • 1. 发明申请
    • METHOD OF FORMING COMPONENTS FROM SHEET MATERIAL
    • 由片材形成组分的方法
    • WO2017093767A1
    • 2017-06-08
    • PCT/GB2016/053830
    • 2016-12-05
    • IMPRESSION TECHNOLOGIES LIMITED
    • FOSTER, Alistair
    • C22F1/04C22F1/06
    • C22F1/04C22F1/06
    • The present invention provides a method of forming a component (40) from an alloy sheet of material (30) having at least a Solvus temperature and a Solidus temperature of a precipitation hardening phase, the method comprising the steps of: heating the sheet (30) to above its Solvus temperature;initiating forming the heated sheet(30) between matched tools(32, 34) of a die press and forming by means of plastic deformation towards a final shape whilst allowing the average temperature of the sheet (30) to reduce at a first predetermined rate A; interrupting the forming of the sheet for a predetermined first interruption period P1prior to achieving said final shape; and, during the interrupt holding the sheet of material with reduced or no deformation and allowing the average temperature of the sheet to reduce at a second predetermined rate B lower than or equal to the first predetermined rate in order to allow for a reduction in dislocations and completing the forming of the heated sheet into the final shape whilst allowing the sheet to cool at a third rate C greater than said second rate B.
    • 本发明提供由合金片材(30)形成具有沉淀硬化阶段的至少一个Solvus温度和一个固相线温度的部件(40)的方法,所述方法包括 步骤:将片材(30)加热到其Solvus温度以上;开始在模压机的匹配工具(32,34)之间形成加热片材(30),并通过朝向最终形状的塑性变形进行成形,同时允许平均 (30)的温度以第一预定速率A降低; 在实现所述最终形状之前,中断片材的形成持续预定的第一中断时段P1; 并且在中断过程中保持片状材料时减少或不变形,并允许片材的平均温度以低于或等于第一预定速率的第二预定速率B减小,以允许位错的减少和 完成将加热片材成形为最终形状,同时允许片材以大于所述第二速率B的第三速率C冷却。