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    System and methods for improved sheet metal cutting
    4.
    发明授权
    System and methods for improved sheet metal cutting 有权

    公开(公告)号：US11883895B2

    公开(公告)日：2024-01-30

    申请号：US17380492

    申请日：2021-07-20

    申请人： Worth-Pfaff Innovations, Incorporated

    发明人： Eric Pfaff ,  Ronald K. Worth

    IPC分类号： G05B99/00 ,  B23K10/00 ,  G05B19/19 ,  B23K26/06 ,  B23K26/08 ,  B23K37/02 ,  B23K26/38

    CPC分类号： B23K10/006 ,  B23K10/00 ,  B23K26/0626 ,  B23K26/0876 ,  B23K26/38 ,  B23K37/0235 ,  G05B19/19 ,  G05B2219/49111

    摘要： A plasma cutting system for measuring or monitoring the voltage between a plasma torch and the material being cut to determine a voltage or voltage signature and comparing that measurement against predetermined values to indicate that an initial pierce of the material is complete, and based on the measurement, moving the torch or the material to a different location for additional cutting. The system further provides a Fix Drawing Tool, which will automatically detect and fix gaps or overlaps in a drawing that are very difficult to find visually. These gaps and overlaps become a problem when trying to make a proper toolpath because a CAM program requires a clean, closed shape. The system also provides a Dynamic Corner Looping system, which automatically adjusts with the feed-rate and accelerations of the toolpath and plasma machine, eliminates unwanted dross, sharpens corners and minimizes material loss. A pendant tethering system is also disclosed for managing control of a CNC machine remotely. Additional disclosed functionality includes a data collection system, a manual hand wheel with 3D simulation and a multiple fabrication head management system.

    METHODS FOR OPERATING A PLASMA TORCH
    8.
    发明公开
    METHODS FOR OPERATING A PLASMA TORCH 审中-公开

    公开(公告)号：US20230249277A1

    公开(公告)日：2023-08-10

    申请号：US17667691

    申请日：2022-02-09

    申请人： The ESAB Group Inc.

    发明人： Geoffrey H. Putnam ,  Christopher Vincent Braudis, SR.

    IPC分类号： B23K10/00 ,  B23K9/095 ,  B23K37/02

    CPC分类号： B23K10/006 ,  B23K9/0953 ,  B23K37/0229

    摘要： A method, apparatus, and computer program product are provided for plasma piercing a workpiece using a plasma cutting torch. According to one implementation the method includes providing the plasma cutting torch at a first pierce height above a workpiece to initiate a piercing operation at the first pierce height for a first duration, during the piercing operation, lowering the plasma cutting torch to a second pierce height above the workpiece for a second duration, and lowering the plasma cutting torch to a cut height.

    SIC INVERTED PLASMA CUTTING POWER SUPPLY
    9.
    发明申请
    SIC INVERTED PLASMA CUTTING POWER SUPPLY 审中-公开

    公开(公告)号：US20190084073A1

    公开(公告)日：2019-03-21

    申请号：US16082972

    申请日：2017-03-13

    申请人： South China University of Technology

    发明人： Zhenmin Wang ,  Lei Zhu ,  Wenyan Fan

    IPC分类号： B23K10/00 ,  B23K9/013 ,  B23K9/10

    CPC分类号： B23K10/006 ,  B23K9/013 ,  B23K9/1006 ,  B23K9/1012 ,  B23K10/00

    摘要： The present invention provides an SiC inverted plasma cutting power supply, which is characterized in that: the SiC inverted plasma cutting power supply comprises a main circuit and a closed-loop control circuit; the main circuit comprises a sequentially connected noise suppression module, a power-frequency rectification and filtering module, an SiC inverted commutation module, a power transformer, an SiC rectification and smoothing module and a non-contact arc striking module, wherein the noise suppression module is connected to an alternating-current input power supply, and the SiC rectification and smoothing module and the non-contact arc striking module are respectively connected to a load; the closed-loop control circuit comprises a man-machine interaction module, a DSC controller, a failure diagnosis and protection module, an SiC high-frequency drive module and a load electrical signal detection module. The power supply has high inverting frequency, small size, light weight, lower raw material consumption, high energy efficiency, an obvious energy saving effect and excellent dynamic characteristics, and can be applied on both a low-power occasion and medium and high power cutting occasions in a stable and reliable manner.