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    • 10. 发明授权
    • Method for producing aerodynamic structures in the manufacturing of integrally bladed gas turbine rotors
    • 一体式叶片式燃气轮机转子制造中空气动力学结构的制造方法
    • US08262897B2
    • 2012-09-11
    • US11658445
    • 2005-07-25
    • Erwin BayerMartin BussmannThomas KraenzlerAlbin PlatzJuergen Steinwandel
    • Erwin BayerMartin BussmannThomas KraenzlerAlbin PlatzJuergen Steinwandel
    • B23H3/00
    • B23H3/02B23H3/00B23H9/10B23H2300/12
    • The invention relates to a method for the production of aero-dynamic structures during the production of integrally bladed gas turbine rotors. Aerodynamic structures of an integrally bladed gas turbine rotor are produced on a rotor disk base body, whereon the end contours are precise, by removing material according to an electrochemical removal process, i.e. by means of an electrochemical machining (ECM)-process. The method comprises the following steps: a) preparing a rotor disk base body which is made of a material which is difficult to machine; b) removing the material which is between the blade wings until a specific dimension is obtained, according to a removal process; c) preparing at least one working electrode in order to finish at least one aerodynamic structure of an integrally bladed gas turbine rotor. The contours of the or each of the working electrodes are adapted to the contours of the aerodynamic structure, which are produced by means of the respective working electrode, such that a gap between the rotor disk base body and a working electrode are produced in an approximately identical manner during the removal process of the material; d) electrochemically machining the or each aerodynamic structure in an electrochemical sinking by placing the rotor disk base body and the or each working electrode in an electrolyte and by applying voltage and/or current, whereby the applied current and/or voltage is temporally pulsed; e) pressure-rinsing the gap which is filled with electrolytes between the aero-dynamic structure and the or each working electrode by a pulsed movement of the or each working electrode.
    • 本发明涉及在一体式叶片式燃气轮机转子生产过程中生产航空动力结构的方法。 整体叶片燃气轮机转子的空气动力学结构通过根据电化学去除工艺(即通过电化学加工(ECM)工艺)去除材料而在转子盘基体上产生,其端端轮廓是精确的。 该方法包括以下步骤:a)制备由难加工的材料制成的转子盘基体; b)根据拆卸过程去除叶片翼之间的材料,直到获得特定尺寸; c)制备至少一个工作电极,以完成整体叶片燃气轮机转子的至少一个空气动力学结构。 工作电极或每个工作电极的轮廓适用于通过相应的工作电极产生的空气动力结构的轮廓,使得转子盘基体和工作电极之间的间隙大致 在材料的去除过程中相同的方式; d)通过将转子盘基体和所述工作电极放置在电解质中并通过施加电压和/或电流来电化学地加工电化学沉没中的每个空气动力学结构,由此施加的电流和/或电压在时间上被脉冲化; e)通过所述工作电极或每个工作电极的脉冲运动,在气动动态结构与所述工作电极之间填充有电解质的间隙进行冲压。