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    Method for producing a contoured ring rolling product
    1.
    发明授权
    Method for producing a contoured ring rolling product 有权

    公开(公告)号：US10464118B2

    公开(公告)日：2019-11-05

    申请号：US15735913

    申请日：2015-07-31

    Applicant: Otto Fuchs Kommanditgesellschaft

    Inventor： Thomas Witulski ,  Jörg Ihne ,  Stefan Teschner ,  Christof Müller

    IPC: B21B38/00 ,  B21C51/00 ,  B21H1/06 ,  B23P15/00 ,  F01D5/02

    Abstract: A method for producing a contoured ring rolling product for a rotating application from a ring blank, with a ring rolling machine controlled in a process-monitored manner. At least one process window, extending over the rolling time, is defined in relation to preselected process parameters for the specific product on the basis of calibrating specimens brought into their final form by the ring rolling machine. The process window(s) monitored during the process is/are determined by the process parameters of calibrating specimens which produced rolled products meeting the requirements demanded of the ring rolling product. The preselected process parameters comprise at least two of ring growing rate, axial rolling force, radial rolling force, rolling time, and ring blank temperature. Ring blanks are subsequently rolled in a contoured manner with parameters of the rolled blanks being recorded with reference to the preselected process parameters and evaluated to ascertain whether they lie within the predefined process window(s), thereby determining whether they are accepted for further machining and/or processing.

    Tube for Use in Conjunction with a Deep Drilled Hole
    2.
    发明申请
    Tube for Use in Conjunction with a Deep Drilled Hole 审中-公开

    公开(公告)号：US20180305795A1

    公开(公告)日：2018-10-25

    申请号：US15765203

    申请日：2015-11-25

    Applicant: Otto Fuchs Kommanditgesellschaft

    Inventor： Joachim Becker ,  Peter Kaufmann ,  Reinhart Domke ,  Thomas Witulski

    IPC: C22C21/16 ,  C22F1/057 ,  B21C23/00 ,  B21C23/08 ,  B21C37/16 ,  F16L9/00

    CPC classification number: C22C21/16 ,  B21C23/002 ,  B21C23/085 ,  B21C37/16 ,  C22F1/057 ,  E21B17/00 ,  F16L9/006

    Abstract: A tube for use in conjunction with a deep drilled hole comprises a light metal tube made of an aluminium alloy, having sections of different wall thicknesses arranged in the longitudinal direction of the tube and a respective coupling at each end for connecting the tube to a further tube, wherein the light metal tube is produced from an aluminum alloy containing the following elements: 2.5-5.0 wt. % Cu, 0.2-1.0 wt. % Mg, 0.8-2.0 wt. % Li, max. 0.15 wt. % Si, max. 0.15 wt. % Fe, max. 0.5 wt. % Mn, max. 1.0 wt. % Zn, max. 0.1 wt. % Ti, max. 0.5 wt. % Ag, the remainder being Al and unavoidable impurities. Also described is a method for producing a light metal tube for a tube of this type configured for example as a bore tube. Said method comprises the steps of forming the light metal tube by means of an extrusion method and subsequent solution annealing, then drawing out the extruded tube over the entire length thereof, until the section or sections having the smallest wall thickness are drawn out by at least 2 to 2.5%, and the drawn light metal tube is artificially aged in a subsequent process step at a temperature of between 164° C. and 180° C.

    Method for Producing a Contoured Ring Rolling Product
    4.
    发明申请
    Method for Producing a Contoured Ring Rolling Product 审中-公开

    公开(公告)号：US20180178270A1

    公开(公告)日：2018-06-28

    申请号：US15735913

    申请日：2015-07-31

    Applicant: Otto Fuchs Kommanditgesellschaft

    Inventor： Thomas Witulski ,  Jörg Ihne ,  Stefan Teschner ,  Christof Müller

    IPC: B21H1/06 ,  B21B38/00 ,  B23P15/00 ,  F01D5/02

    Abstract: A method for producing a contoured ring rolling product for a rotating application from a ring blank, with a ring rolling machine controlled in a process-monitored manner. At least one process window, extending over the rolling time, is defined in relation to preselected process parameters for the specific product on the basis of calibrating specimens brought into their final form by the ring rolling machine. The process window(s) monitored during the process is/are determined by the process parameters of calibrating specimens which produced rolled products meeting the requirements demanded of the ring rolling product. The preselected process parameters comprise at least two of ring growing rate, axial rolling force, radial rolling force, rolling time, and ring blank temperature. Ring blanks are subsequently rolled in a contoured manner with parameters of the rolled blanks being recorded with reference to the preselected process parameters and evaluated to ascertain whether they lie within the predefined process window(s), thereby determining whether they are accepted for further machining and/or processing.

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