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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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公开(公告)号：US20170232542A1
公开(公告)日：2017-08-17
申请号：US15518496
申请日：2015-11-02
Inventor： KAITO MATSUI , ATSUHIRO KAWAMOTO , TAKAHIRO NOGUCHI , MASARU KOWA
Abstract: In control applying a gradient to a command voltage value during an arc period, although stable welding can be performed even in a case where a protrusion length of a welding wire becomes long, when the disturbance such as sudden change in the protrusion length is generated, a current waveform of the arc period is undershot, the short circuit period is disturbed, and it took time to return to the stable state, and the amount of sputter generation is also increased. Therefore, it is possible to suppress a change in current such as undershoot or the like when the disturbance is generated, stabilize short circuit cycle, perform welding with a strong resistance to disturbance and a small amount of sputter generation by changing an inductance value a plurality of times during the arc period.
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公开(公告)号：US20150209888A1
公开(公告)日：2015-07-30
申请号：US14679783
申请日：2015-04-06
Inventor： YUKINORI HIROTA , ATSUHIRO KAWAMOTO , KAITO MATSUI
CPC classification number: B23K9/1062 , B23K9/0953 , B23K9/124
Abstract: A method to determine welding conditions includes relational expressions or tables about various parameters for setting welding conditions. The method can determine and display the recommended values for the welding conditions which are suitable for the information about the object to be welded and the information about the welding method set by the operator. The welding conditions include a welding current, a welding voltage, a wire feed speed, a welding speed, and a leg length. Furthermore, if the operator changes the recommended value for a welding condition to a new value, the method can determine new recommended values for the other welding conditions compatible with the new value and display the new recommended values.
Abstract translation: 确定焊接条件的方法包括关于设置焊接条件的各种参数的关系表达式或表格。 该方法可以确定和显示适用于有关待焊接物体的信息的焊接条件的推荐值和操作者设置的焊接方法的信息。 焊接条件包括焊接电流，焊接电压，送丝速度，焊接速度和腿部长度。 此外，如果操作员将焊接条件的推荐值更改为新值，则该方法可以确定与新值兼容的其他焊接条件的新推荐值，并显示新的推荐值。
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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：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：US20230158606A1
公开(公告)日：2023-05-25
申请号：US18158457
申请日：2023-01-23
Inventor： JINGBO WANG , TSUTOMU SUGIYAMA , SHUNSUKE KAWAI , KENZO SHIBATA , MASASHI ISHIGURO , ATSUHIRO KAWAMOTO
IPC: B23K26/21 , B23K26/082 , B23K26/08
CPC classification number: B23K26/21 , B23K26/082 , B23K26/0884
Abstract: Provided is a laser welding method including a welding step of welding a workpiece by irradiating a surface of a workpiece with a laser beam that is swept two-dimensionally while being advanced in an X direction. In the welding step, the laser beam is swept to draw a predetermined pattern on the surface of the workpiece. Additionally, drawing speed and output of the laser beam are controlled to have an equal amount of heat input per unit drawing length in the predetermined pattern over the entire length of the predetermined pattern. The predetermined pattern is a continuous pattern in which two annular patterns are in contact with each other at one point.
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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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