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公开(公告)号：US20240342818A1
公开(公告)日：2024-10-17
申请号：US18298502
申请日：2023-04-11
申请人： The ESAB Group, Inc.
发明人： Zeljko Ackar , Edwin Bergstedt
摘要： A contact device for a welding apparatus is disclosed. The contact device is for providing current to a first welding wire and a second welding wire. The contact device includes first and second contact jaws. The first and second contact jaws include a plurality of longitudinally extending grooves formed therein that form passageways for the welding wires. The welding wires can be positioned in a first configuration in which they are spaced apart and in a second configuration in which they are next to and contact each other.
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公开(公告)号：US12103118B2
公开(公告)日：2024-10-01
申请号：US17422262
申请日：2019-10-23
发明人： Zhenmin Wang , Qiming Zhong , Fangxiang Xie , Wenyan Fan , Zhuo Luo
摘要： A dual-pulse MIG welding power source based on SiC power devices may include a main circuit and a digital control circuit. The main circuit may include a power frequency rectifier filter module, a first SiC high frequency inverter module, a first high frequency transformer, and a first SiC fast full-wave rectifier filter module connected sequentially. The power frequency rectifier filter module may be connected to a three-phase AC power supply, and the first SiC fast full-wave rectifier filter module may be connected to a load. The digital control circuit may include a digital human-machine interaction module, a core control module, a SiC high-frequency drive module, a load voltage and current detection feedback module, and a wire feeding control module. The digital human-machine interaction module may be connected to the core control module.
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公开(公告)号：US12036629B2
公开(公告)日：2024-07-16
申请号：US17019623
申请日：2020-09-14
IPC分类号： B23K9/073 , B23K9/09 , B23K9/095 , B23K9/12 , B23K9/173 , B23K103/04 , B23K103/10
CPC分类号： B23K9/073 , B23K9/0732 , B23K9/09 , B23K9/095 , B23K9/124 , B23K9/173 , B23K2103/04 , B23K2103/10
摘要： A base material is welded by a first welding method in a case where a welding parameter related to heat input to the base material is less than a first threshold value. The base material is welded by a second welding method in a case where the welding parameter is less than a second threshold value and is more than the first threshold value. The base material is welded by a third welding method in a case where the welding parameter is more than the second threshold value. By adjusting welding conditions regardless of the thickness of the base material, a welding method suitable for the thickness of the base material is determined to provide a welding with little spatter and no meltdown of the base material.
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公开(公告)号：US20240207967A1
公开(公告)日：2024-06-27
申请号：US18288424
申请日：2022-04-26
CPC分类号： B23K9/124 , B23K31/02 , B62D27/023 , B62D25/04
摘要： A method of designing the width of the weld bead in a tailored blank includes: a model acquisition step for acquiring analysis model data containing elements for the first sheet, elements for the second sheet, and elements for the weld bead; a press-forming analysis step for performing press-forming analysis using the analysis model data to calculate deformation of the various elements when the tailored blank is press formed; and a bead-width designing step for deciding on a design value of the width of the weld bead for each of positions along the longitudinal direction of the weld bead in the tailored blank prior to press forming based on a press-forming-induced change in the width relating to the elements for the weld bead obtained through calculation, to generate bead-width design data indicating the relationship between a position along the longitudinal direction of the weld bead and the design value of the width of the weld bead.
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公开(公告)号：US12005532B2
公开(公告)日：2024-06-11
申请号：US17405433
申请日：2021-08-18
发明人： Debejyo Chakraborty , Miguel Arturo Saez , John Patrick Spicer , Pei-chung Wang , Spyros P Mellas , Wayne Cai , James M Ward
CPC分类号： B23K9/0956 , B23K9/0953 , B23K9/125
摘要： Systems, methods, and apparatuses of a welding system are disclosed and include a first stage of a scanning device for scanning weld parts to generate a three-dimensional (3D) profile of a weld target wherein the 3D profile captures matching imperfections of a meeting together of the set of weld parts when performing the weld operation; and the second stage of a monitoring device to monitor the weld operation and to generate a data of high-resolution measurements of the weld operation; wherein the first stage further includes the monitoring device determining a weld schedule based on the 3D profile, and to adjust the weld schedule while the weld operation progresses to adapt to predicted distortion based on the 3D profile and to sensed distortion; wherein the second stage further includes a plurality of sensors to sense a set of components associated with the weld operation to generate high-resolution data of measurements.
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公开(公告)号：US20240131609A1
公开(公告)日：2024-04-25
申请号：US18547245
申请日：2022-01-19
发明人： Johannes SCHARRER , Manuel WALLA
CPC分类号： B23K9/12 , B23K9/0026
摘要： A pre-separating device includes a channel which has a feed opening and an outlet opening and through which joining elements can be conveyed. A first channel-blocking element has a first actuating device and a second channel-blocking element has a second actuating device. Each of the first channel-blocking element and the second channel-blocking element is movable between a blocking position and a passage position. The second channel-blocking element is disposed downstream of the first channel-blocking element in a conveying direction of the joining elements. A first compressed-air supply opening leads into the channel upstream of the first channel-blocking element in the conveying direction and a second compressed-air supply opening leads into the channel between the first channel-blocking element and the second channel-blocking element.
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公开(公告)号：US11964346B2
公开(公告)日：2024-04-23
申请号：US17010963
申请日：2020-09-03
申请人： Lincoln Global, Inc.
IPC分类号： B23K9/00 , B22F10/20 , B22F12/55 , B23K9/04 , B23K9/09 , B23K9/12 , B23K9/173 , B23K9/18 , B33Y10/00 , C22C1/05 , B22F10/10 , B23K26/14 , B23K26/211 , B33Y30/00 , G05B19/4099
CPC分类号： B23K9/0017 , B22F10/20 , B22F12/55 , B23K9/04 , B23K9/092 , B23K9/121 , B23K9/123 , B23K9/124 , B23K9/1735 , B23K9/188 , B33Y10/00 , C22C1/05 , B22F10/10 , B22F2999/00 , B23K26/1423 , B23K26/211 , B33Y30/00 , G05B19/4099 , B22F2999/00 , C22C1/05 , C22C29/06 , B22F2999/00 , B22F12/55 , C22C1/05
摘要： A system and method of welding or additive manufacturing is provided where at least two welding electrodes are provided to and passed through a two separate orifices on a single contact tip and a welding waveform is provided to the electrodes through the contact tip to weld simultaneously with both electrodes, where a bridge droplet is formed between the electrodes and then transferred to the puddle.
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公开(公告)号：US11958145B2
公开(公告)日：2024-04-16
申请号：US16981932
申请日：2019-03-13
CPC分类号： B23K9/173 , B23K9/092 , B23K9/0953 , B23K9/125 , B23K9/164 , B23K9/293 , B23K37/0229
摘要： A welding device for gas shielded arc welding includes: a portable welding robot mounted with a welding torch including a nozzle that guides jetting of shielding gas and a contact tip that performs energization on a consumable electrode; a feeding device that supplies the consumable electrode to the welding torch; a welding power source that supplies electric power to the consumable electrode via the contact tip; a gas supply source that supplies the shielding gas to be jetted from a nozzle end; and a control device that controls the portable welding robot. When the welding torch is seen from a side of jetting of the shielding gas, the contact tip is placed in an inside of an opening of the nozzle, the nozzle and the contact tip have a relatively movable structure, and an inner diameter of the nozzle end is within a range of 10-20 mm.
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公开(公告)号：US11931835B2
公开(公告)日：2024-03-19
申请号：US16169060
申请日：2018-10-24
申请人： Lincoln Global, Inc.
发明人： Judah B. Henry , Bruce J. Chantry
CPC分类号： B23K9/125 , B23K9/091 , B23K9/123 , B23K9/1336
摘要： Embodiments of systems and methods in pulsed arc welding. A robotic welding system, having a welding torch with a contact tip, is configured to perform the following method: (a) generate and output a series of a determined number of welding output pulses as a welding wire electrode is fed toward a workpiece; (b) stop generating welding output pulses while allowing the welding wire electrode to continue to be fed toward the workpiece in an attempt to electrically short to the workpiece; (c) attempt to confirm that the welding wire electrode has electrically shorted to the workpiece within a determined error time period; and (d) repeat steps (a) through (c) if electrical shorting of the welding wire electrode has been confirmed within the determined error time period, else, shut down the robotic welding system to avoid damaging the welding torch.
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公开(公告)号：US11931830B2
公开(公告)日：2024-03-19
申请号：US16981005
申请日：2019-03-08
申请人： Kobe Steel, Ltd.
发明人： Baini Jo , Shogo Nakatsukasa , Akira Ogawa , Eiji Sato
摘要： A control method for gas-shielded arc welding includes providing a normal arc period in which the welding current is maintained at a setting current Icc set in advance, and providing a separation control period after the separation timing of the molten droplet is detected in the normal arc period, the separation control period including a current decreasing section, a current maintaining section, and a current increasing section. In the separation control period, at least one of the following controls for preventing a short circuit is performed: control of an output voltage, control of a feeding speed, and control of a gas ratio.
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