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    Electron beam welding machine of clamshell construction
    3.
    发明授权
    Electron beam welding machine of clamshell construction 失效
    电子束焊接机

    公开(公告)号：US3610872A

    公开(公告)日：1971-10-05

    申请号：US3610872D

    申请日：1968-10-07

    Applicant: WELDING RESEARCH INC

    Inventor： SCIAKY DAVID

    IPC: B23K15/06 ,  B23K15/00

    CPC classification number: B23K15/06

    Abstract: This invention relates to electron beam welding machines and, in particular, to an electron beam welding machine of a clamshell configuration. The apparatus of the present invention has particular utility for the electron beam welding of very large structures such as are used in components of the aerospace and aircraft industry. The apparatus comprises a heavily reinforced floor which functions as an immense tooling bed plate and, at the same time, as one wall of the vacuum chamber. A single-piece clamshell structure which is arranged to swing open or shut against the floor by rotation about a pivot is sealed effectively to the floor by means of a continuous seal arranged close to the edges of the floor which seals against the lip of the open side of the clamshell structure. The vacuum chamber formed by the floor and the clamshell is evacuated from below the floor through grilled openings in the floor. The electron beam gun is mounted on a carriage, having several degrees of motion, which itself is mounted on a gentry which, in turn, is mounted on a ball screw mechanism so that the gantry may be transported from one end of the chamber to the other.

    Rotating arc pipe welding machine
    5.
    发明授权
    Rotating arc pipe welding machine 失效
    旋转弧焊机

    公开(公告)号：US3882299A

    公开(公告)日：1975-05-06

    申请号：US46060074

    申请日：1974-04-12

    Applicant: WELDING RESEARCH INC

    Inventor： SCIAKY DAVID

    IPC: B23K9/028 ,  B23K9/08 ,  B23K37/053 ,  B23K9/02

    CPC classification number: B23K37/0531 ,  B23K9/08

    Abstract: An automatic pipe welding apparatus for end to end joining of pipes of large diameter. The machine incorporates means for striking an arc between the ends of two pipes to be joined together. A radial electro-magnetic field traversing the gap causes the arc to travel at high speeds circumferentially along the edges of the pipes. Means are provided for internally clamping and holding the two pipes at a pre-set distance from one another during the arcing period, along with means for forging the weld. Control means are provided for delivering a pre-set program of electric arc current versus time.

    Abstract translation: 一种自动管道焊接设备，用于大直径管道的端对端连接。 该机器包括用于在要连接在一起的两个管道的端部之间敲击弧的装置。 穿过间隙的径向电磁场使得弧沿着管的边缘周向高速行进。 提供了用于在电弧期间内将夹紧和保持两根管彼此预定距离的装置以及用于锻造焊缝的装置。 提供控制装置用于传送电弧电流与时间的预设程序。

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