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公开(公告)号：US09308602B2
公开(公告)日：2016-04-12
申请号：US13333349
申请日：2011-12-21
申请人： Kazuhiro Hayashimoto , Yuta Fujinuma , Tsukasa Hagihara , Shuichi Usui , Yoshitaka Sanuki , Masahiro Takahashi
发明人： Kazuhiro Hayashimoto , Yuta Fujinuma , Tsukasa Hagihara , Shuichi Usui , Yoshitaka Sanuki , Masahiro Takahashi
CPC分类号： B23K26/28 , B23K26/082 , B23K26/244 , B23K26/32 , B23K26/322 , B23K2101/006 , B23K2101/18 , B23K2101/34 , B23K2103/04 , B23K2103/08 , B23K2103/50
摘要： A laser lap welding method by irradiating of a laser beam from one side of a plurality of overlapped workpieces (1, 2), the method includes the steps of: scanning (La) the laser beam in the forward direction along a predetermined section of the workpieces; reversing the scanning direction of the laser beam at a terminating end (t) of the predetermined section; scanning (Lb) the laser beam in the backward direction and terminating of the irradiating of the laser beam onto the predetermined section, wherein the scanning of the laser beam in the backward direction is offset from the scanning of the laser beam in the forward direction such that a part of weld bead (12) formed by the laser scanning in the backward direction overlaps the weld bead (11) formed by the laser scan in the forward direction.
摘要翻译： 一种通过从多个重叠工件（1,2）的一侧照射激光束的激光搭接焊接方法，所述方法包括以下步骤：沿着向前方向沿着预定部分扫描（La）激光束 工件 在所述预定部分的终止端（t）反转所述激光束的扫描方向; 沿着反方向扫描（Lb）激光束并终止将激光束照射到预定部分上，其中激光束沿向后方向的扫描偏离激光束在向前方向上的扫描，例如 通过沿向后方向的激光扫描形成的焊道（12）的一部分与沿着向前方向的激光扫描形成的焊道（11）重叠。
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公开(公告)号：US20120097651A1
公开(公告)日：2012-04-26
申请号：US13279905
申请日：2011-10-24
IPC分类号： B23K26/00
CPC分类号： B23K26/244 , B23K33/00 , B23K2101/18 , B23K2101/34 , B23K2103/04 , B23K2103/08
摘要： A laser lap welding method for parts made of galvanized steel sheet includes steps of: press-forming two parts from galvanized steel sheet such that the two parts include elongated joining regions to be welded together on mutually opposed surfaces thereof and a plurality of protrusions are formed on at least any one of the joining regions of the two parts at predetermined intervals in a longitudinal direction of the joining region; retaining the two parts in a state in which the joining regions are overlapped one on the other such that a gap according to a height of the protrusions is formed between the joining regions; and irradiating a laser onto one surface of the overlapped joining regions of the two parts such that the overlapped joining regions are fused and welded by energy of the laser, and zinc gas produced with fusing is discharged through the gap.
摘要翻译： 用于镀锌钢板的部件的激光搭接焊接方法包括以下步骤：从镀锌钢板上压制两部分，使得两部分包括在其相互相对的表面上被焊接在一起的细长接合区域，并且形成多个突起 在所述接合区域的纵向方向上以预定间隔在所述两个部分中的至少任一个接合区域中; 将两部分保持在接合区域彼此重叠的状态，使得在接合区域之间形成根据突起的高度的间隙; 并且将激光照射到两个部分的重叠接合区域的一个表面上，使得重叠的接合区域被激光的能量熔合和焊接，并且通过该熔融物产生的锌气体通过间隙排出。
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公开(公告)号：US20120160815A1
公开(公告)日：2012-06-28
申请号：US13333349
申请日：2011-12-21
申请人： Kazuhiro Hayashimoto , Yuta Fujinuma , Tsukasa Hagihara , Shuichi Usui , Yoshitaka Sanuki , Masahiro Takahashi
发明人： Kazuhiro Hayashimoto , Yuta Fujinuma , Tsukasa Hagihara , Shuichi Usui , Yoshitaka Sanuki , Masahiro Takahashi
IPC分类号： B23K26/00
CPC分类号： B23K26/28 , B23K26/082 , B23K26/244 , B23K26/32 , B23K26/322 , B23K2101/006 , B23K2101/18 , B23K2101/34 , B23K2103/04 , B23K2103/08 , B23K2103/50
摘要： A laser lap welding method by irradiating of a laser beam from one side of a plurality of overlapped workpieces (1, 2), the method includes the steps of: scanning (La) the laser beam in the forward direction along a predetermined section of the workpieces; reversing the scanning direction of the laser beam at a terminating end (t) of the predetermined section; scanning (Lb) the laser beam in the backward direction and terminating of the irradiating of the laser beam onto the predetermined section, wherein the scanning of the laser beam in the backward direction is offset from the scanning of the laser beam in the forward direction such that a part of weld bead (12) formed by the laser scanning in the backward direction overlaps the weld bead (11) formed by the laser scan in the forward direction.
摘要翻译： 一种通过从多个重叠工件（1,2）的一侧照射激光束的激光搭接焊接方法，所述方法包括以下步骤：沿着向前方向沿着预定部分扫描（La）激光束 工件 在所述预定部分的终止端（t）反转所述激光束的扫描方向; 沿着反方向扫描（Lb）激光束并终止将激光束照射到预定部分上，其中激光束沿向后方向的扫描偏离激光束在向前方向上的扫描，例如 通过沿向后方向的激光扫描形成的焊道（12）的一部分与沿着向前方向的激光扫描形成的焊道（11）重叠。
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公开(公告)号：US09012804B2
公开(公告)日：2015-04-21
申请号：US13279905
申请日：2011-10-24
IPC分类号： B23K26/24 , B23K26/322 , B23K26/32 , B23K33/00
CPC分类号： B23K26/244 , B23K33/00 , B23K2101/18 , B23K2101/34 , B23K2103/04 , B23K2103/08
摘要： A laser lap welding method for parts made of galvanized steel sheet includes steps of: press-forming two parts from galvanized steel sheet such that the two parts include elongated joining regions to be welded together on mutually opposed surfaces thereof and a plurality of protrusions are formed on at least any one of the joining regions of the two parts at predetermined intervals in a longitudinal direction of the joining region; retaining the two parts in a state in which the joining regions are overlapped one on the other such that a gap according to a height of the protrusions is formed between the joining regions; and irradiating a laser onto one surface of the overlapped joining regions of the two parts such that the overlapped joining regions are fused and welded by energy of the laser, and zinc gas produced with fusing is discharged through the gap.
摘要翻译： 用于镀锌钢板的部件的激光搭接焊接方法包括以下步骤：从镀锌钢板上压制两部分，使得两部分包括在其相互相对的表面上被焊接在一起的细长接合区域，并且形成多个突起 在所述接合区域的纵向方向上以预定间隔在所述两个部分中的至少任一个接合区域中; 将两部分保持在接合区域彼此重叠的状态，使得在接合区域之间形成根据突起的高度的间隙; 并且将激光照射到两个部分的重叠接合区域的一个表面上，使得重叠的接合区域被激光的能量熔合和焊接，并且通过该熔融物产生的锌气体通过间隙排出。
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公开(公告)号：US08841577B2
公开(公告)日：2014-09-23
申请号：US13279775
申请日：2011-10-24
CPC分类号： B23K33/00 , B23K26/244 , B23K2101/18 , B23K2101/34 , B23K2103/04 , B23K2103/08
摘要： A laser lap welding method for parts made of galvanized steel sheet includes steps of press-forming two parts from galvanized steel sheet such that the two parts include elongated joining regions to be welded together on mutually opposed surfaces thereof and a plurality of protrusions are formed on at least any one of the joining regions of the two parts at predetermined intervals in a longitudinal direction of the joining region; retaining the two parts in a state in which the joining regions are overlapped one on the other such that a gap according to a height of the protrusions is formed between the joining regions; and irradiating a laser onto one surface of the overlapped joining regions of the two parts such that the overlapped joining regions are fused and welded by energy of the laser, and zinc gas produced with fusing is discharged through the gap.
摘要翻译： 用于镀锌钢板的部件的激光搭接焊接方法包括从镀锌钢板压制成形两部分的步骤，使得两部分包括在其相互相对的表面上被焊接在一起的细长接合区域，并且多个突起形成在 所述两个部分的接合区域中的至少任一个在所述接合区域的纵向方向上以预定的间隔; 将两部分保持在接合区域彼此重叠的状态，使得在接合区域之间形成根据突起的高度的间隙; 并且将激光照射到两个部分的重叠接合区域的一个表面上，使得重叠的接合区域被激光的能量熔合和焊接，并且通过该熔融物产生的锌气体通过间隙排出。
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公开(公告)号：US20120097650A1
公开(公告)日：2012-04-26
申请号：US13279775
申请日：2011-10-24
IPC分类号： B23K26/00
CPC分类号： B23K33/00 , B23K26/244 , B23K2101/18 , B23K2101/34 , B23K2103/04 , B23K2103/08
摘要： A laser lap welding method for parts made of galvanized steel sheet includes steps of press-forming two parts from galvanized steel sheet such that the two parts include elongated joining regions to be welded together on mutually opposed surfaces thereof and a plurality of protrusions are formed on at least any one of the joining regions of the two parts at predetermined intervals in a longitudinal direction of the joining region; retaining the two parts in a state in which the joining regions are overlapped one on the other such that a gap according to a height of the protrusions is formed between the joining regions; and irradiating a laser onto one surface of the overlapped joining regions of the two parts such that the overlapped joining regions are fused and welded by energy of the laser, and zinc gas produced with fusing is discharged through the gap.
摘要翻译： 用于镀锌钢板的部件的激光搭接焊接方法包括从镀锌钢板压制成形两部分的步骤，使得两部分包括在其相互相对的表面上被焊接在一起的细长接合区域，并且多个突起形成在 所述两个部分的接合区域中的至少任一个在所述接合区域的纵向方向上以预定的间隔; 将两部分保持在接合区域彼此重叠的状态，使得在接合区域之间形成根据突起的高度的间隙; 并且将激光照射到两个部分的重叠接合区域的一个表面上，使得重叠的接合区域被激光的能量熔合和焊接，并且通过该熔融物产生的锌气体通过间隙排出。
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公开(公告)号：US20110266263A1
公开(公告)日：2011-11-03
申请号：US13093907
申请日：2011-04-26
申请人： Tsukasa Hagihara , Takayoshi Dan
发明人： Tsukasa Hagihara , Takayoshi Dan
IPC分类号： B23K26/00
CPC分类号： B23K26/244 , B23K2101/34 , B23K2103/08
摘要： Provided is a laser lap welding method for a galvanized steel sheet, comprising the steps of: preparing two steel sheets (11, 12), at least one of which is a galvanized steel sheet, in such a manner that the steel sheets are directly lapped one over the other with a galvanized layer of the galvanized steel sheet located as an interface of the steel sheets; and irradiating an outer surface of any one steel sheet in the lap region of the two steel sheets with a laser beam under predetermined power and speed conditions, so that an elongated hole (20) is formed in a molten pool (2) extending backward from a laser irradiation position (10) at least in the steel sheet on the outer surface side, whereby welding (3) of the two steel sheets is performed while venting metal vapor (23) produced by the laser irradiation through the elongated hole (20) backwards (R) in a laser travelling direction and towards a laser irradiation source, wherein at a starting end portion (131, 231, 331) of a welding section (103, 203, 303) in the direct lap region, welding of any one of the welding section (103) and another welding section (204, 304) is terminated (at 132, 242, 342) with the conditions to form the elongated hole maintained.
摘要翻译： 提供一种用于镀锌钢板的激光搭接焊接方法，包括以下步骤：制备两个钢板（11,12），其中至少一个是镀锌钢板，使钢板直接重叠 一个是镀锌钢板的镀锌层，作为钢板的界面; 并且在预定的动力和速度条件下用激光束照射两个钢板的搭接区域中的任何一个钢板的外表面，从而在从熔池（2）向后延伸的熔池（2）中形成长孔 至少在外表面侧的钢板中的激光照射位置（10），由此通过长孔（20）排出通过激光照射产生的金属蒸气（23），进行两个钢板的焊接（3） 在激光行进方向上朝向激光照射源向后（R），其中在直接搭接区域中的焊接部（103,203,303）的起始端部（131,231,331）处，焊接任何一个 的焊接部分（103）和另一焊接部分（204,304）终止（在132,242,342），条件是保持长孔。
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公开(公告)号：US20120048838A1
公开(公告)日：2012-03-01
申请号：US13221060
申请日：2011-08-30
申请人： Hidenobu Ishida , Naoki Ozawa , Tsukasa Hagihara , Shuichi Usui
发明人： Hidenobu Ishida , Naoki Ozawa , Tsukasa Hagihara , Shuichi Usui
IPC分类号： B23K26/03
CPC分类号： B23K26/244 , B23K26/032 , B23K31/125
摘要： An apparatus 1 of the present invention includes a laser emitting unit 2, a monitor unit 3, a storage unit 4, an image extraction unit 5, a bead recognition unit 6, and a bead shape determination unit 7. The bead shape determination unit 7 is configured to calculate the position of the end of a bead region based on the bead region recognized by the bead recognition unit 6, and to determine whether the shape of the end of the bead region is convex or concave in the extending direction of the bead region.
摘要翻译： 本发明的装置1包括激光发射单元2，监视单元3，存储单元4，图像提取单元5，小珠识别单元6和小珠形状确定单元7.珠形状确定单元7 被配置为基于由胎圈识别单元6识别的胎圈区域来计算胎圈区域的端部的位置，并且确定胎圈区域的端部的形状是否在胎圈的延伸方向上是凸的或凹的 地区。
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公开(公告)号：US08575512B2
公开(公告)日：2013-11-05
申请号：US13093907
申请日：2011-04-26
申请人： Tsukasa Hagihara , Takayoshi Dan
发明人： Tsukasa Hagihara , Takayoshi Dan
CPC分类号： B23K26/244 , B23K2101/34 , B23K2103/08
摘要： Provided is a laser lap welding method including the steps of: preparing two steel sheets, at least one of which is a galvanized steel sheet, in such a manner that the steel sheets are directly lapped one over the other with a galvanized layer of the galvanized steel sheet located as an interface of the steel sheets; and irradiating an outer surface of any one steel sheet in the lap region of the two steel sheets with a laser beam under predetermined power and speed conditions, so that an elongated hole is formed in a molten pool extending backward from a laser irradiation position at least in the steel sheet on the outer surface side. Welding of the two steel sheets is performed while venting metal vapor produced by the laser irradiation through the elongated hole backwards in a laser travelling direction and towards a laser irradiation source.
摘要翻译： 提供了一种激光搭接焊接方法，其包括以下步骤：制备两个钢板，其中至少一个是镀锌钢板，使钢板与镀锌层的镀锌层直接相互重叠 钢板作为钢板的界面; 并且在预定的动力和速度条件下用激光束照射两个钢板的搭接区域中的任何一个钢板的外表面，使得在从激光照射位置至少向后延伸的熔池中形成长孔 在钢板的外表面侧。 在通过激光照射产生的金属蒸汽通过长孔在激光行进方向向后并朝向激光照射源的同时进行两个钢板的焊接。
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公开(公告)号：US08946595B2
公开(公告)日：2015-02-03
申请号：US13221060
申请日：2011-08-30
申请人： Hidenobu Ishida , Naoki Ozawa , Tsukasa Hagihara , Shuichi Usui
发明人： Hidenobu Ishida , Naoki Ozawa , Tsukasa Hagihara , Shuichi Usui
CPC分类号： B23K26/244 , B23K26/032 , B23K31/125
摘要： An apparatus 1 of the present invention includes a laser emitting unit 2, a monitor unit 3, a storage unit 4, an image extraction unit 5, a bead recognition unit 6, and a bead shape determination unit 7. The bead shape determination unit 7 is configured to calculate the position of the end of a bead region based on the bead region recognized by the bead recognition unit 6, and to determine whether the shape of the end of the bead region is convex or concave in the extending direction of the bead region.
摘要翻译： 本发明的装置1包括激光发射单元2，监视单元3，存储单元4，图像提取单元5，小珠识别单元6和小珠形状确定单元7.珠形状确定单元7 被配置为基于由胎圈识别单元6识别的胎圈区域来计算胎圈区域的端部的位置，并且确定胎圈区域的端部的形状是否在胎圈的延伸方向上是凸的或凹的 地区。
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