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    System and Method for Short Arc Welding
    13.
    发明申请
    System and Method for Short Arc Welding 审中-公开

    公开(公告)号：US20200316704A1

    公开(公告)日：2020-10-08

    申请号：US16909502

    申请日：2020-06-23

    Applicant: Illinois Tool Works Inc.

    Inventor： Justin M. Durik ,  Robert R. Davidson

    IPC: B23K9/095 ,  B23K9/073 ,  B23K9/09 ,  B23K9/173 ,  B23K9/10

    Abstract: An example method of controlling a short circuit welding process includes: setting a heat target for at least a portion of a short state; monitoring output parameters during the short state; calculating a measured heat from the measured output parameters; comparing the measured heat and the heat target; adjusting a pinch current in a subsequent short state in response to at least one comparing from at least one previous short state; and repeating these actions.

    Dabbing Pulsed Welding System And Method
    14.
    发明申请
    Dabbing Pulsed Welding System And Method 审中-公开

    公开(公告)号：US20180311754A1

    公开(公告)日：2018-11-01

    申请号：US16027548

    申请日：2018-07-05

    Applicant: Illinois Tool Works Inc.

    Inventor： Robert R. Davidson ,  Richard J. Schuh ,  Matthew Alex Palmer

    IPC: B23K9/10 ,  B23K9/09

    CPC classification number: B23K9/1012 ,  B23K9/092 ,  B23K9/1043

    Abstract: A pulsed welding regime includes a peak phase in which energy is added to an electrode and a weld puddle, and a molten ball begins to detach from the electrode, followed by a dabbing phase in which current is significantly reduced to place the ball in the weld puddle with addition of little or no energy. The resulting short circuit clears and the system proceeds to a background phase. The current in the dabbing phase is lower than the current during the background phase. The process may be specifically adapted for particular welding wires, and may be particularly well suited for use with cored wires. The dabbing phase allows for lower energy to be transferred to the sheath of such wires, and resets the arc length after each pulse cycle.

    Dabbing pulsed welding system and method
    17.
    发明授权
    Dabbing pulsed welding system and method 有权

    公开(公告)号：US11478870B2

    公开(公告)日：2022-10-25

    申请号：US14554508

    申请日：2014-11-26

    Applicant: ILLINOIS TOOL WORKS INC.

    Inventor： Robert R. Davidson ,  Peter Donald Mehn ,  Richard J. Schuh

    IPC: B23K9/09 ,  B23K9/10 ,  B23K9/12 ,  B23K9/095 ,  B23K9/173

    Abstract: A pulsed welding regime includes a peak phase in which energy is added to an electrode and a weld puddle, and a molten ball begins to detach from the electrode, followed by a dabbing phase in which current is significantly reduced to place the ball in the weld puddle with addition of little or no energy. The resulting short circuit clears and the system proceeds to a background phase. The current in the dabbing phase is lower than the current during the background phase. The process may be specifically adapted for particular welding wires, and may be particularly well suited for use with cored wires. The dabbing phase allows for lower energy to be transferred to the sheath of such wires, and resets the arc length after each pulse cycle.

    SYSTEMS AND METHODS TO MITIGATE FUSION BETWEEN A WIRE ELECTRODE AND A WELDING TORCH
    19.
    发明申请
    SYSTEMS AND METHODS TO MITIGATE FUSION BETWEEN A WIRE ELECTRODE AND A WELDING TORCH 有权

    公开(公告)号：US20220134462A1

    公开(公告)日：2022-05-05

    申请号：US17506818

    申请日：2021-10-21

    Applicant: Illinois Tool Works Inc.

    Inventor： Shuang Liu ,  Robert R. Davidson

    IPC: B23K9/09 ,  B23K9/095 ,  B23K9/12 ,  B23K9/007

    Abstract: Systems and methods are described to address issues associated with welding with cored wires. In certain processes, a welding wire may “stick” or fuse to a contact tip. To mitigate the negative effects of a wire fusing to a contact tip, a double pulse waveform is applied. A first pulse is applied at a first current level above a threshold current level required to transfer a ball of molten welding wire in a peak phase, and a second pulse is applied in the background phase at a second current level below the threshold current level to limit and/or eliminate fusion between the wire and the contact tip. In examples, the second current level is sufficient to dislodge a spot weld between the welding wire and the welding torch yet insufficient to transfer a ball of molten welding wire.

    AUTOMATIC PROCESS AND/OR SET UP OF WELDING TYPE SYSTEM
    20.
    发明申请
    AUTOMATIC PROCESS AND/OR SET UP OF WELDING TYPE SYSTEM 有权

    公开(公告)号：US20210154762A1

    公开(公告)日：2021-05-27

    申请号：US17165561

    申请日：2021-02-02

    Applicant: Illinois Tool Works Inc.

    Inventor： Bruce P. Albrecht ,  Robert R. Davidson

    IPC: B23K9/095 ,  B23K9/10 ,  B23K9/16 ,  B23K9/23 ,  B23K9/20 ,  B23K9/09 ,  B23K9/12

    Abstract: An example welding type system includes: a welding power circuit having a control input and a welding type power output; a feedback circuit configured to provide feedback regarding the welding type power output or a weld produced using the welding type power output; and a controller connected to the feedback circuit, wherein the controller includes a parameter setting module and a process selection module, the process selection module configured to automatically select a welding process from a plurality of welding processes based on the feedback from the feedback circuit or one or more welding parameters set by the parameter setting module.

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