公开(公告)号：US06492617B2

公开(公告)日：2002-12-10

申请号：US09829647

申请日：2001-04-10

申请人： Masayuki Nagahori ,  Shinji Numata ,  Masato Kawakita

发明人： Masayuki Nagahori ,  Shinji Numata ,  Masato Kawakita

IPC分类号： B23K2614

CPC分类号： B23K26/142 ,  B23K26/1494 ,  B23K26/389

摘要： The present invention stably supplies a side blow gas to a piercing site and prevents the adherence of spatter to a cutting nozzle. A hood, which is attached to a side blow gas nozzle, guides side blow gas jetted from a side blow gas nozzle to the piercing site and prevents spatter from adhering to the cutting nozzle as laser beam and assist gas are respectively radiated or jetted onto a cutting material through a communicating hole.

摘要翻译： 本发明稳定地向穿孔部位供给侧吹气体，防止飞溅物附着在切割喷嘴上。 附着在侧吹气体喷嘴的引擎罩引导从侧吹气体喷嘴喷射到穿刺部位的侧吹气体，并且防止飞溅物附着在切割喷嘴上，因为激光束和辅助气体分别被辐射或喷射到 通过连通孔切割材料。

公开(公告)号：US06316743B1

公开(公告)日：2001-11-13

申请号：US09247620

申请日：1999-02-10

申请人： Masayuki Nagahori ,  Shinji Numata ,  Masato Kawakita

发明人： Masayuki Nagahori ,  Shinji Numata ,  Masato Kawakita

IPC分类号： B23K2614

CPC分类号： B23K26/123 ,  B23K26/04 ,  B23K26/125 ,  B23K26/1435 ,  B23K26/1438 ,  B23K26/146 ,  B23K26/382 ,  B23K26/40 ,  B23K2103/04 ,  B23K2103/50

摘要： In a piercing operation prior to the laser cutting of steel, etc., the development of a technology in which a piercing hole of the intended shape is obtained in a short time, even for a thick cut work. An oxygen gas coaxial to the laser beam applied towards the cut work and a low concentration gas with a low oxygen concentration and major components comprising nitrogen gas, air, or a mixture thereof discharged from an outer gas nozzle disposed so as to surround the outer side of the flow of this oxygen gas is supplied and disposed towards said cut work, and can realize shortening of the time, etc., of the piercing operation time by applying a laser beam to the cut work. In addition, a laser processing nozzle provided with an inner gas nozzle which discharges oxygen gas and an outer gas nozzle which discharges low concentration gas, and a laser cutting apparatus provided with this nozzle is provided.

摘要翻译： 在激光切割钢等之前的穿孔操作中，即使在粗切削加工中也能够在短时间内获得预期形状的穿孔的技术的发展。 与激光束同轴的氧气与被切割的工件同时运转，低浓度气体具有低的氧浓度，并且主要成分包括氮气，空气或其混合物，其从外部气体喷嘴排出，以便围绕外侧 这种氧气的流动被提供并且朝向所述切割工件设置，并且可以通过对切割工件施加激光束来实现刺穿操作时间的缩短等。 此外，设置有设置有排出氧气的内部气体喷嘴和排出低浓度气体的外部气体喷嘴的激光加工喷嘴和设置有该喷嘴的激光切割装置。

公开(公告)号：US07238914B2

公开(公告)日：2007-07-03

申请号：US11119239

申请日：2005-04-29

申请人： Masato Kawakita ,  Kouji Ishii ,  Shinji Numata ,  Kazuya Hirohashi

发明人： Masato Kawakita ,  Kouji Ishii ,  Shinji Numata ,  Kazuya Hirohashi

IPC分类号： B23K26/08 ,  B23K26/06

CPC分类号： B23K26/0876 ,  B23K26/06 ,  B23K26/0869 ,  B23K26/0892

摘要： A laser processing apparatus has a first laser beam reversal apparatus which reverses the laser beam from the laser oscillator, and a second laser beam reversal apparatus which reverses the laser beam reversed by the first laser beam reversal apparatus, and guides the laser beam to the inside of the processing head, in which a first laser optical path which runs from the laser oscillator to the first laser beam reversal apparatus, a second laser optical path which runs form the first laser beam reversal apparatus to the second laser beam reversal apparatus, and a third laser optical path which runs from the second laser beam reversal apparatus to the processing head are parallel.

摘要翻译： 激光加工装置具有使来自激光振荡器的激光束反转的第一激光束反转装置和使由第一激光束反转装置反转的激光束反转并将激光束引导到内部的第二激光束反转装置 处理头，其中从激光振荡器延伸到第一激光束反转装置的第一激光光路，从第一激光束反转装置延伸到第二激光束反转装置的第二激光光路，以及 从第二激光束反转装置延伸到处理头的第三激光光路是平行的。

公开(公告)号：US20050274703A1

公开(公告)日：2005-12-15

申请号：US11119239

申请日：2005-04-29

申请人： Masato Kawakita ,  Kouji Ishii ,  Shinji Numata ,  Kazuya Hirohashi

发明人： Masato Kawakita ,  Kouji Ishii ,  Shinji Numata ,  Kazuya Hirohashi

IPC分类号： B23K26/08 ,  B23K26/04 ,  B23K26/06

CPC分类号： B23K26/0876 ,  B23K26/06 ,  B23K26/0869 ,  B23K26/0892

摘要： A laser processing apparatus has a first laser beam reversal apparatus which reverses the laser beam from the laser oscillator, and a second laser beam reversal apparatus which reverses the laser beam reversed by the first laser beam reversal apparatus, and guides the laser beam to the inside of the processing head, in which a first laser optical path which runs from the laser oscillator to the first laser beam reversal apparatus, a second laser optical path which runs form the first laser beam reversal apparatus to the second laser beam reversal apparatus, and a third laser optical path which runs from the second laser beam reversal apparatus to the processing head are parallel.

摘要翻译： 激光加工装置具有使来自激光振荡器的激光束反转的第一激光束反转装置和使由第一激光束反转装置反转的激光束反转并将激光束引导到内部的第二激光束反转装置 处理头，其中从激光振荡器延伸到第一激光束反转装置的第一激光光路，从第一激光束反转装置延伸到第二激光束反转装置的第二激光光路，以及 从第二激光束反转装置延伸到处理头的第三激光光路是平行的。