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    Welding wire preheating system and method
    2.
    发明授权
    Welding wire preheating system and method 有权

    公开(公告)号：US09950383B2

    公开(公告)日：2018-04-24

    申请号：US14099513

    申请日：2013-12-06

    Applicant: ILLINOIS TOOL WORKS INC.

    Inventor： Robert R. Davidson ,  Richard J. Schuh

    IPC: B23K9/095 ,  B23K9/10 ,  B23K9/173 ,  B23K9/235

    CPC classification number: B23K9/0956 ,  B23K9/1043 ,  B23K9/1093 ,  B23K9/173 ,  B23K9/235

    Abstract: In a welding system, a preheating process is carried out prior to initiation of a welding arc, such as upon depression of a trigger or switch on a welding torch. The preheating process involves generation and application of desired currents and voltages to a welding electrode from a power supply. Preheating is continued until the welding electrode reaches a desired temperature or resistance, which may be determined by reference to an increasing voltage, a decreasing current, a peaked and declining voltage, resistance and/or power measurements, and so forth. Following preheating, a desired welding process may begin with initiation of the welding arc.

    WELDING WIRE PREHEATING SYSTEMS AND METHODS
    4.
    发明申请
    WELDING WIRE PREHEATING SYSTEMS AND METHODS 有权

    公开(公告)号：US20210237188A1

    公开(公告)日：2021-08-05

    申请号：US17227889

    申请日：2021-04-12

    Applicant: Illinois Tool Works Inc.

    Inventor： Robert R. Davidson ,  Richard J. Schuh

    IPC: B23K9/095 ,  B23K9/10 ,  B23K9/173 ,  B23K9/235

    Abstract: Welding wire preheating systems and methods are disclosed. An example welding method includes: receiving a signal indicative of initiation of welding process; prior to initiating a welding arc based on the received signal, controlling voltage or current applied to a welding electrode to preheat the electrode to a temperature above an ambient temperature but below a melting point of the welding electrode; monitoring feedback voltage to determine a termination of preheating; and terminating preheating prior to initiating the welding arc in accordance with a welding protocol.

    DABBING PULSED WELDING SYSTEM AND METHOD
    5.
    发明申请
    DABBING PULSED WELDING SYSTEM AND METHOD 审中-公开
    制造脉冲焊接系统及方法

    公开(公告)号：US20160144444A1

    公开(公告)日：2016-05-26

    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

    CPC classification number: B23K9/092 ,  B23K9/093 ,  B23K9/0953 ,  B23K9/0956 ,  B23K9/1012 ,  B23K9/1062 ,  B23K9/125 ,  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.

    Abstract translation: 脉冲焊接方式包括峰值相，其中能量被添加到电极和焊接熔池中，并且熔融的球开始从电极分离，随后是电流明显减小以将球放置在焊缝中的吸附阶段 水坑里加了很少或没有能量。 所产生的短路消失，系统进入后台阶段。 在相位阶段的电流低于电流。 该方法可以特别适用于特定的焊丝，并且可以特别适合用于芯线。 钻孔阶段允许较低的能量传递到这种线的护套，并且在每个脉冲周期之后复位电弧长度。

    Dabbing Pulsed Welding System And Method
    9.
    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.

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