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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：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：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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Patent Agency Ranking
公开(公告)号：US20190084068A1
公开(公告)日：2019-03-21
申请号：US16086653
申请日：2017-03-17
Inventor： YUYA FURUYAMA , ATSUHIRO KAWAMOTO , JUNJI FUJIWARA , MASARU KOWA , KAITO MATSUI
Abstract: In thin sheet welding, when a heat input amount relative to a sheet thickness is too large, a welding defect such as a deviation from aim due to occurrence of a strain or burn through may easily occur. When a welding current is decreased to reduce the heat input amount, there is an issue in which an arc tends to become unstable. In arc welding in which short-circuit and arcing are repeated, first heat input period (Th) and second heat input period (Tc) having a heat input amount less than that of first heat input period (Th) are periodically repeated and a welding current during an arc period in second heat input period (Tc) is decreased to extinguish the arc. This reduces the heat input amount into a welding object and suppresses burn through or a strain upon welding, while making the arc stable.
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公开(公告)号：US20190070687A1
公开(公告)日：2019-03-07
申请号：US16086658
申请日：2017-03-17
Inventor： YUYA FURUYAMA , ATSUHIRO KAWAMOTO , JUNJI FUJIWARA , MASARU KOWA , KAITO MATSUI
Abstract: In thin sheet welding, when a heat input amount relative to a sheet thickness is too large, a welding defect such as a deviation from aim due to occurrence of a strain or burn through may easily occur. When a welding current is decreased to reduce the heat input amount, there is an issue in which an arc tends to become unstable. In arc welding that repeats short-circuit and arcing, first heat input period (Th) and second heat input period (Tc) having a heat input amount less than that of first heat input period (Th) are periodically repeated. This reduces the heat input amount into a welding object and suppresses burn through and a strain upon welding while making the arc stable.
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公开(公告)号：US20160346864A1
公开(公告)日：2016-12-01
申请号：US15023685
申请日：2015-02-02
Inventor： KAITO MATSUI , ATSUHIRO KAWAMOTO , JUNJI FUJIWARA , AKIRA NAKAGAWA
IPC: B23K9/12
CPC classification number: B23K9/125 , B23K9/0732 , B23K9/092 , B23K9/0953 , B23K9/124 , B23K9/173
Abstract: An arc welding method preforms reciprocating wire feed so as to alternately perform forward feed and reverse feed. The arc welding method includes a normal arc welding step, a normal short circuit welding step, and an abnormal arc welding step. In the abnormal arc welding step, a short circuit state occurs at a second time point, which is before a lapse of a second period from a first time point at which an arc state occurs. Further, in the abnormal arc welding step, the reciprocating wire feed continues until a third time point after a lapse of a first period from the second time point. At the third time point, the reciprocating wire feed is stopped and the abnormal arc welding step is completed. From the third time point, the welding wire is decelerated and the reciprocating wire feed is restarted.
Abstract translation: 电弧焊接方法预先进行往复送丝，以交替地执行向前进给和反向进给。 电弧焊接方法包括正常电弧焊接步骤，正常短路焊接步骤和异常电弧焊接步骤。 在异常电弧焊接步骤中，在从发生电弧状态的第一时间点开始的第二时间段之前的第二时间点发生短路状态。 此外，在异常电弧焊接步骤中，从第二时间点开始经过第一时间段之后，往复送丝继续进行到第三时间点。 在第三时刻，往复送丝停止，异常电弧焊步骤完成。 从第三时间点开始，焊丝减速，往复送丝重新启动。
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公开(公告)号：US20190210138A1
公开(公告)日：2019-07-11
申请号：US16328298
申请日：2017-06-22
Inventor： YOICHI FUKUMITSU , TAKASHI NAGAI , ATSUHIRO KAWAMOTO , KAITO MATSUI
IPC: B23K9/28
CPC classification number: B23K9/285 , B23K9/133 , B23K9/29 , B23K9/32 , H02K5/08 , H02K5/20 , H02K9/19
Abstract: To provide a compact welding torch in which a motor can be easily replaced, in which, when a motor capable of high-speed welding is used for a long time in a high current region, heat generated by the motor can be sufficiently cooled, and in which the motor can be protected from spatters or the like.A first cooler that cools a first side surface of a motor parallel to a shaft of the motor and a second cooler that cools a second side surface of the motor different from the first side surface are included. The first cooler has a first inflow port and a first outflow port for a cooling fluid, and a first flow passage that connects the first inflow port and the first outflow port. The second cooler has a second inflow port and a second outflow port for the cooling fluid, and a second flow passage that connects the second inflow port and the second outflow port. The first outflow port and the second inflow port open in a direction crossing the shaft of the motor and are connected to each other directly or indirectly.
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公开(公告)号：US20180207739A1
公开(公告)日：2018-07-26
申请号：US15743433
申请日：2016-08-25
Inventor： ATSUHIRO KAWAMOTO , KAITO MATSUI , MASARU KOWA , TAKAHIRO NOGUCHI , MASASHI FUJIWARA
Abstract: 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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