A shaping apparatus and method of shaping a workpiece
    5.
    发明公开
    A shaping apparatus and method of shaping a workpiece 审中-公开
    Formungsvorrichtung und Verfahren zur Formung einesWerkstücks

    公开(公告)号:EP2604355A1

    公开(公告)日:2013-06-19

    申请号:EP12192698.4

    申请日:2012-11-15

    申请人: Rolls-Royce plc

    IPC分类号: B21D22/00 B21D37/01 B21D37/16

    摘要: A shaping apparatus (20) for shaping a workpiece (10). The apparatus (20) comprises first and second pairs of shaping members (22, 28) and a spacer (26) located between the first and second pairs of shaping members (22, 28). The first pair of shaping members (22) comprises a material having a first linear coefficient of thermal expansion, and the second pair of shaping members (28) comprises a material having a third linear coefficient of thermal expansion. The first linear coefficient of thermal expansion is higher than the second linear coefficient of thermal expansion such that on heating of the apparatus (20), thermal expansion of the shaping members causes the first pair of shaping members to expand outwardly (22), and the second pair of shaping members (28) to expand inwardly.

    摘要翻译: 一种用于成形工件(10)的成形设备(20)。 装置(20)包括位于第一和第二对成形构件(22,28)之间的第一和第二对成形构件(22,28)和间隔件(26)。 第一对成形构件(22)包括具有第一线性热膨胀系数的材料,第二对成形构件(28)包括具有第三线性热膨胀系数的材料。 第一线性热膨胀系数高于第二线性热膨胀系数,使得在加热装置(20)时,成形构件的热膨胀使得第一对成形构件向外膨胀(22),并且 第二对成形构件(28)向内扩展。

    Fixture for supporting a workpiece
    6.
    发明公开
    Fixture for supporting a workpiece 有权
    Befestigung zum Halten einesWerkstückes

    公开(公告)号:EP2308636A1

    公开(公告)日:2011-04-13

    申请号:EP10175383.8

    申请日:2010-09-06

    申请人: Rolls-Royce plc

    IPC分类号: B23Q3/08 B25B5/06

    摘要: A fixture (10) for supporting a workpiece (18) during a machining operation. The fixture comprising a base (12) provided with a channel (14) for receiving part (16) of the workpiece (18), the channel having a first wall (20) facing an opposing second wall (22). An inflatable diaphragm (24) is located on the first wall (20), and configured to engage with an engagement surface (36) on the workpiece and bias the workpiece against the second wall. The diaphragm comprises a deformable portion (26) spaced apart from the first wall of the channel, the deformable portion having ends (28,30) which provide a seal with the first wall to define a chamber (32) enclosed by the first wall and diaphragm.

    摘要翻译: 一种用于在加工操作期间支撑工件(18)的夹具(10)。 所述固定装置包括设置有用于容纳所述工件(18)的部分(16)的通道(14)的基部(12),所述通道具有面向相对的第二壁(22)的第一壁(20)。 充气隔膜(24)位于第一壁(20)上,并且构造成与工件上的接合表面(36)接合并将工件抵靠第二壁偏压。 所述隔膜包括与所述通道的第一壁间隔开的可变形部分(26),所述可变形部分具有端部(28,30),所述端部提供与所述第一壁的密封以限定由所述第一壁包围的室(32) 隔膜。

    Checking positional accuracy of features
    7.
    发明公开
    Checking positional accuracy of features 有权
    Prüfungder Positionsgenauigkeit von Merkmalen

    公开(公告)号:EP2505960A1

    公开(公告)日:2012-10-03

    申请号:EP12161423.4

    申请日:2012-03-27

    申请人: Rolls-Royce Plc.

    IPC分类号: G01B21/20 G01B21/32

    CPC分类号: G01B21/20 G01B21/32

    摘要: A component such as a casing of a gas turbine engine has an array of holes 2, 4 distributed around a flange. The casing may distort when unsupported, but nevertheless the position accuracy of the holes 2, 4 may be checked by manipulating measured hole positions to lie with known deviations from a best-fit circle 10. The maximum load and stress required to bring the hole array into conformity with the best-fir circle 10 is calculated and compared with a predetermined maximum. The deviation of the hole positions 2C, 4C associated with the best-fit circle 10 from nominal positions can also be calculated.

    摘要翻译: 诸如燃气涡轮发动机的壳体的部件具有围绕凸缘分布的孔2,4阵列。 当不支撑时,外壳可能会变形,但是可以通过操纵测量的孔位置来确定孔2,4的位置精度,以与最佳拟合圆10的已知偏差进行检查。使孔阵列 与最佳冷杉圆10相符,并与预定的最大值进行比较。 也可以计算与最佳配合圆10相关联的孔位置2C,4C与标称位置的偏差。

    Method of manufacturing a duct for a gas turbine engine
    9.
    发明公开
    Method of manufacturing a duct for a gas turbine engine 有权
    Verfahren zur Herstellung eines Blechkanalsfüreine Gasturbine

    公开(公告)号:EP1712742A2

    公开(公告)日:2006-10-18

    申请号:EP06251983.0

    申请日:2006-04-08

    申请人: Rolls-Royce plc

    IPC分类号: F01D9/02 F02K1/00

    摘要: The present invention provided a method of manufacturing a duct for a gas turbine engine or the like from sheet metal material; the method comprising the steps of: fabricating a duct from sheet material (10,12,14) including rolling or folding metal sheet along ruled lines to form a ruled surface geometry approximately corresponding to at least part of a desired irregular final duct geometry; welding corresponding rolled or folded parts of the duct skin together and positioning the duct on a heat treatment fixture (30) having a shape corresponding to the said desired irregular duct geometry; the material of the heat treatment fixture having a greater thermal expansion coefficient than the duct material; heating the duct and fixture substantially to a stress relieving temperature of the duct material such that differential thermal expansion of the duct and fixture at the said stress relieving temperature causes the duct to distort and adopt the shape of the exterior surface of the fixture on which the duct is located.

    摘要翻译: 本发明提供了一种从金属板材料制造燃气轮机发动机等的管道的方法; 该方法包括以下步骤:从片材(10,12,14)制造管道,包括沿着格线滚动或折叠金属片,以形成大致对应于期望的不规则最终导管几何形状的至少一部分的刻线表面几何形状; 将管道皮肤的相应的轧制或折叠部分焊接在一起并将管道定位在具有对应于所述期望的不规则管道几何形状的形状的热处理夹具(30)上; 所述热处理夹具的材料具有比所述导管材料更大的热膨胀系数; 将管道和夹具基本上加热到管道材料的应力消除温度,使得管道和固定装置在所述应力消除温度下的不同热膨胀导致管道变形并采用固定装置的外表面的形状, 管道位于。