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    Systems, methods, and apparatus to preheat welding wire
    1.
    发明授权
    Systems, methods, and apparatus to preheat welding wire 有权

    公开(公告)号：US12208476B2

    公开(公告)日：2025-01-28

    申请号：US17132712

    申请日：2020-12-23

    Applicant: ILLINOIS TOOL WORKS INC.

    Inventor： Jake Zwayer ,  Steven Barhorst ,  James Lee Uecker ,  Christopher Hsu ,  Dennis Sigl ,  Jon Michael Patterson

    IPC: B23K9/10 ,  B23K9/24

    Abstract: A contact tip assembly with a preheating tip comprises a welding-type power source configured to provide welding-type current to a welding-type circuit, the welding-type circuit comprising a welding-type electrode and a first contact tip of a welding torch; an electrode preheating circuit configured to provide preheating current through a first portion of the electrode via a second contact tip of the welding torch; and a preheat controller to: monitor a voltage drop across a second portion of the electrode; adjust at least one of the welding-type current or the preheating current based on the voltage drop, the second portion of the electrode comprising at least part of the first portion of the electrode; and control the preheating current based on a hydrogen reduction goal and based on stored parameters associated with a type of the electrode, a chemistry of the electrode, or a wire size.

    Systems, methods, and apparatus to preheat welding wire
    2.
    发明授权
    Systems, methods, and apparatus to preheat welding wire 有权

    公开(公告)号：US11819959B2

    公开(公告)日：2023-11-21

    申请号：US17131067

    申请日：2020-12-22

    Applicant: Illinois Tool Works Inc.

    Inventor： James Lee Uecker ,  Jake Zwayer ,  Christopher Hsu

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

    CPC classification number: B23K9/1012 ,  B23K9/1093 ,  B23K9/173 ,  B23K9/235

    Abstract: A contact tip assembly with a preheating tip comprises a welding-type power source configured to provide welding-type current to a welding-type circuit, the welding-type circuit comprising a welding-type electrode and a first contact tip of a welding torch. The assembly also includes an electrode preheating circuit configured to provide preheating current through a portion of the welding-type electrode via a second contact tip of the welding torch, and a voltage sense circuit to monitor a voltage drop across the two contact tips, and the electrode preheating circuit adjusts at least one of the first current or the preheating current based on the voltage drop.

    Methods and apparatus to determine and display heat input to a weld
    3.
    发明授权
    Methods and apparatus to determine and display heat input to a weld 有权

    公开(公告)号：US11691213B2

    公开(公告)日：2023-07-04

    申请号：US16860588

    申请日：2020-04-28

    Applicant: Illinois Tool Works Inc.

    Inventor： Christopher Hsu ,  Jake Zwayer

    IPC: B23K9/10 ,  B23K9/095

    CPC classification number: B23K9/1006 ,  B23K9/0953

    Abstract: Methods and apparatus to determine heat input to a weld are disclosed. An example welding-type power supply includes a power converter to convert input power to output welding-type power, and a controller configured to: during a welding-type operation, calculate average instantaneous power values of the welding-type operation for discrete, non-overlapping time periods by multiplying voltage measurements and corresponding current measurements; identify an end of the welding-type operation; determine a duration of the welding-type operation; calculate a total average instantaneous power of the welding-type operation based on the average instantaneous power values for the time periods and the duration of the welding-type operation; and determine whether an acceptable range of the welding-type operation is exceeded based on the total average instantaneous power and the duration of the welding-type operation.

    Low energy, motion-assist, point-and-shoot welding torch
    5.
    发明授权
    Low energy, motion-assist, point-and-shoot welding torch 有权

    公开(公告)号：US11638968B2

    公开(公告)日：2023-05-02

    申请号：US16984865

    申请日：2020-08-04

    Applicant: Illinois Tool Works Inc.

    Inventor： Christopher Hsu

    IPC: B23K26/042 ,  B23K26/22 ,  B23K26/00 ,  B23K9/09 ,  B23K9/007 ,  B23K9/127

    Abstract: An example system includes: a hand-held welding tool that is manually placed in a welding position, wherein the hand-held welding tool is configured to be activated to cause a contact tip or a welding heat source to automatically move from a first position and to second position during a welding operation, and wherein a welding arc is automatically and repeatedly turned off and on while the contact tip or the welding heat source moves from the first position to the second position to make a plurality of welds between the first position and the second position, wherein, as a travel speed decreases, a time period between each arc on time increases to make equally spaced welds.

    Low energy, motion-assist, point-and-shoot welding torch
    7.
    发明授权
    Low energy, motion-assist, point-and-shoot welding torch 有权

    公开(公告)号：US10730140B2

    公开(公告)日：2020-08-04

    申请号：US15689099

    申请日：2017-08-29

    Applicant: Illinois Tool Works Inc.

    Inventor： Christopher Hsu

    IPC: B23K9/09 ,  B23K26/042 ,  B23K26/00 ,  B23K26/22 ,  B23K9/007 ,  B23K9/127

    Abstract: Hybrid manual and automated welding systems and methods are described. A hand-held welding tool is manually positioned to engage a workpiece. The hand-held welding tool includes a motion device that is configured to automatically move a contact tip or a welding heat source during a welding operation after a manual triggering. A welding arc is automatically and repeatedly turned off and on to make a string of overlapping and equally spaced spot welds while the contact tip or the welding heat source moves from the first position to the second position.

    Sensor assisted head mounted displays for welding
    9.
    发明授权
    Sensor assisted head mounted displays for welding 有权

    公开(公告)号：US10448692B2

    公开(公告)日：2019-10-22

    申请号：US15061360

    申请日：2016-03-04

    Applicant: Illinois Tool Works Inc.

    Inventor： Christopher Hsu

    IPC: A42B3/22 ,  G06T1/20 ,  G06F3/01 ,  G06T3/40 ,  G02B27/01 ,  A61F9/06 ,  B23K9/095 ,  B23K9/173 ,  B23K9/32 ,  B23K9/10 ,  G02B27/00

    Abstract: Sensor assisted head mounted displays for welding are disclosed. Disclosed example head mounted devices include an optical sensor, an augmented reality controller, a graphics processing unit, and a semi-transparent display. The optical sensor collects an image of a weld environment. The augmented reality controller determines a simulated object to be presented in a field of view, a position in the field of view, and a perspective of the simulated object in the field of view. The graphics processing unit renders the simulated object based on the perspective to represent the simulated object being present in the field of view and in the weld environment. The display presents the rendered simulated object within the field of view based on the position. At least a portion of the weld environment is observable through the display and the lens when the display is presenting the rendered simulated object.

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