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公开(公告)号：US20250025956A1
公开(公告)日：2025-01-23
申请号：US18905123
申请日：2024-10-02
Inventor： YOICHI FUKUMITSU , ATSUHIRO KAWAMOTO , KAITO MATSUI , JUNJI FUJIWARA , HITOSHI NISHIMURA , YUYA FURUYAMA
Abstract: A welding system includes a tip that biases a welding wire and has a forced power supply mechanism for supplying power to the welding wire at a distal end, a torch including the tip at a distal end, the torch supplying the welding wire toward a welded portion, an automatic machine that holds the torch, and a welding wire straightener attached to the automatic machine, the welding wire straightener correcting a bending tendency of the welding wire.
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公开(公告)号：US20190224771A1
公开(公告)日：2019-07-25
申请号：US16326390
申请日：2017-09-08
Inventor： JUNJI FUJIWARA , ATSUHIRO KAWAMOTO , YUYA FURUYAMA
Abstract: An arc welding device includes memory in which a combination of a short circuit frequency, a peak current, and a peak current period is stored and determinator that determines a peak current and a peak current period based on a set short circuit frequency and the combination stored in memory. A welding output part performs welding output based on the peak current and the peak current period determined by determinator.
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公开(公告)号：US20150096966A1
公开(公告)日：2015-04-09
申请号：US14569936
申请日：2014-12-15
Inventor： JUNJI FUJIWARA , ATSUHIRO KAWAMOTO , KAITO MATSUI
Abstract: An arc welder alternately repeats a short circuit period in which a wire and a welding object are short-circuited and an arc period in which an arc occurs between the wire and the welding object. The arc welder includes a welding output section, a joint type setting section, a storage section, and a waveform parameter determining section. The welding output section performs welding output, and the joint type setting section sets a joint type. The storage section stores a plurality of combinations of joint types and waveform parameters. The waveform parameter determining section determines a waveform parameter based on the joint type set by the joint type setting section and the plurality of combinations. The welding output section performs welding output based on the waveform parameter determined by the waveform parameter determining section. Thus, vaporized zinc is easily released and sufficient welding is performed.
Abstract translation: 电弧焊机交替重复电线和焊接对象短路的短路周期以及电线与焊接对象之间产生电弧的电弧期间。 电弧焊机包括焊接输出部，接头型设定部，存储部和波形参数确定部。 焊接输出部进行焊接输出，接头型设定部设定接头型。 存储部存储联合类型和波形参数的多个组合。 波形参数确定部分基于由联合类型设置部分设置的关节类型和多个组合来确定波形参数。 焊接输出部根据由波形参数确定部确定的波形参数进行焊接输出。 因此，汽化的锌容易释放并进行充分的焊接。
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公开(公告)号：US20190176257A1
公开(公告)日：2019-06-13
申请号：US16326698
申请日：2017-08-31
Inventor： YUYA FURUYAMA , SHIGEKI YONEMORI , ATSUHIRO KAWAMOTO , JUNJI FUJIWARA , NORIYUKI MATSUOKA
Abstract: A method of controlling arc welding with a consumable electrode includes repeating the following periods in sequence: a short-circuit welding period to perform short-circuit arc welding; a pulse welding period to perform pulse welding; and a cooling period in which the welding current output is zero.
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公开(公告)号：US20170203388A1
公开(公告)日：2017-07-20
申请号：US15326400
申请日：2015-07-09
Inventor： NORIYUKI MATSUOKA , YASUSHI MUKAI , ATSUHIRO KAWAMOTO , JUNJI FUJIWARA
IPC: B23K26/064 , G05B19/19 , B23K26/08
CPC classification number: B23K26/064 , B23K26/0643 , B23K26/0648 , B23K26/0665 , B23K26/08 , B23K26/0884 , B23K26/0892 , B23K26/10 , B23K2101/006 , G05B19/19 , G05B2219/45104
Abstract: A laser machining system includes a laser oscillator, a laser machining head, and a reflection unit. The laser oscillator outputs laser light. The laser machining head, which includes a first optical member for collecting the laser light, emits the collected laser light. The reflection unit, which includes a reflective member for reflecting the laser light emitted from the laser machining head, radiates the reflected laser light onto a work.
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Patent Agency Ranking
公开(公告)号：US20150096965A1
公开(公告)日：2015-04-09
申请号：US14569906
申请日：2014-12-15
Inventor： ATSUHIRO KAWAMOTO , JUNJI FUJIWARA , YUKINORI HIROTA , NORIYUKI MATSUOKA , KAITO MATSUI
Abstract: As a conventional problem, welding on surface-treated material, such as a zinc-coated steel plate, considerably generates air holes including blowholes and also generates lots of spatters. Present invention provides a method of controlling arc welding performed in a manner that a short-circuit period, in which a short circuit is generated between a welding wire and an object to be welded, and an arc period, in which an arc is generated after release of the short circuit, are repeated alternately. According to the method, welding current is increased from an arc-regeneration-before current to a first welding current at a detection of release of the short circuit such that an increase gradient of the welding current becomes not less than 750 A/msec. This suppresses generation of air holes and spatters in welding work on a surface-treated material, such as a zinc-coated steel plate.
Abstract translation: 作为常规问题，在诸如镀锌钢板的表面处理材料上的焊接显着地产生包括气孔的气孔并且还产生大量的飞溅物。 本发明提供了一种控制电弧焊接的方法，该方法是在焊丝和被焊接物体之间产生短路的短路时段和在其中产生电弧的电弧周期之后进行的电弧 释放短路，交替重复。 根据该方法，在检测出短路的检测时焊接电流从电弧再生前电流增加到第一焊接电流，焊接电流的增加梯度变得不小于750A / ms。 这样可以抑制在诸如镀锌钢板的表面处理材料上的焊接作业中产生气孔和飞溅物。
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公开(公告)号：US20220266372A1
公开(公告)日：2022-08-25
申请号：US17683296
申请日：2022-02-28
Inventor： TAKAHIRO NOGUCHI , AKIRA NAKAGAWA , JUNJI FUJIWARA
Abstract: Provided is an arc welding control method for performing control in an arc period, the control including: first control of increasing welding current (Ia) to first current value (I1) in a range from 200 A to 300 A inclusive at first gradient (S1) and maintaining welding current (Ia) at first current value (I1) for first period (T1); second control of reducing welding current (Ia) from first current value (I1) to second current value (I2) at second gradient (S2) and maintaining welding current (Ia) at second current value (I2) for second period (T2); third control of increasing welding current (Ia) from second current value (I2) to third current value (I3) higher than first current value (I1) at third gradient (S3); and fourth control that is started to reduce welding current (Ia) from third current value (I3) within 0.5 ms after welding current (Ia) reaches third current value (I3) under the third control.
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公开(公告)号：US20220010828A1
公开(公告)日：2022-01-13
申请号：US17483626
申请日：2021-09-23
Inventor： JUNJI FUJIWARA
Abstract: Second member (20) includes a material that is difficult to weld to first member (10). First member (10) is provided with non-through hole (11) having a depth not penetrating in a thickness direction. Third member (30) is welded, via penetrating part (21) of second member (20), to an inner peripheral surface and a bottom of non-through hole (11) and opening surface (10a) of first member (10) opened by penetrating part (11) of second member (20). Second member (20) is compressed by flange (31) and first member (10) by solidification contraction of third member (30), and second member (20) is therefore fixed between flange (31) of third member (30) and first member (10).
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公开(公告)号：US20210394295A1
公开(公告)日：2021-12-23
申请号：US17464574
申请日：2021-09-01
Inventor： JUNJI FUJIWARA , TATSUYUKI NAKAGAWA
Abstract: Second member 20 includes a material that is difficult to weld to first member 10. In first member 10, recess 11 is formed by press molding such that a lower surface of first member 10 opposite to second member 20 protrudes.
Third member 30 is arc-welded toward at least a bottom of recess 11 via penetrating part 21 of second member 20. Second member 20 is compressed by flange 31 and first member 10 by solidification contraction of third member 30, and second member 20 is therefore fixed between flange 31 of third member 30 and first member 10.-
公开(公告)号：US20190101145A1
公开(公告)日：2019-04-04
申请号：US16087145
申请日：2017-03-24
Inventor： JUNJI FUJIWARA , ATSUHIRO KAWAMOTO , HITOSHI NISHIMURA , YASUSHI MUKAI , SHIGEKI YONEMORI
Abstract: A joint structure includes a first metallic material having a first projection, a second metallic material similar in type to the first metallic material and weldable to the first metallic material, and a different type of material having a first penetrating part and sandwiched between the first metallic material and the second metallic material, the different type of material being different in type from the first metallic material and the second metallic material and difficult to be welded to the first metallic material and the second metallic material. The first projection is smaller in diameter or width than the first penetrating part and is spaced from the rim of the first penetrating part by a first gap. The first projection is positioned in the first penetrating part and is spaced from the second metallic material by a second gap in the thickness direction of the first penetrating part. The second gap has a size of a predetermined percentage of the thickness of the first projection of the first metallic material to which arc welding id applied. The first metallic material and the second metallic material are melted and joined together inside the first penetrating part to compress and fix the different type of material, so that the different type of material, the first metallic material, and the second metallic material are fixed together.
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