公开(公告)号：US20120312788A1

公开(公告)日：2012-12-13

申请号：US13579322

申请日：2011-01-21

申请人： Christophe Bertez ,  Olivier Matile ,  Frédéric Neeb

发明人： Christophe Bertez ,  Olivier Matile ,  Frédéric Neeb

IPC分类号： B23K26/12

CPC分类号： B23K26/147 ,  B23K26/702 ,  H01S3/0071 ,  H01S3/03

摘要： The invention relates to a laser machining equipment including a laser oscillator (1) for generating a laser beam, a laser head (3) through which the laser beam passes, an optical path (2) for conveying the laser beam between the laser oscillator (1) and the laser head (3), and a gas source (9) fluidly connected to the laser head (3) via a main gas pipe (8). In addition, a second pipe (18) fluidly connects the gas source (9) to the laser oscillator (1). The equipment therefore comprises a common gas source for the laser oscillator (1) and head (3). The gas is preferably nitrogen.

摘要翻译： 本发明涉及一种激光加工设备，包括用于产生激光束的激光振荡器（1），激光束通过的激光头（3），用于将激光束传送到激光振荡器 1）和激光头（3）以及通过主气体管道（8）与激光头（3）流体连接的气体源（9）。 此外，第二管道（18）将气体源（9）流体连接到激光振荡器（1）。 因此，该设备包括用于激光振荡器（1）和头（3）的公共气体源。 气体优选为氮气。

公开(公告)号：US06521864B2

公开(公告)日：2003-02-18

申请号：US09755051

申请日：2001-01-08

申请人： Christophe Bertez ,  Jean Hamy ,  Olivier Matile

发明人： Christophe Bertez ,  Jean Hamy ,  Olivier Matile

IPC分类号： B23K2600

CPC分类号： B23K26/0617 ,  B23K26/0604 ,  B23K26/064 ,  B23K26/0648 ,  B23K26/067 ,  B23K26/123 ,  B23K26/125 ,  B23K2103/04 ,  B23K2103/05

摘要： Method and apparatus for cutting a workpiece made of structural steel or mild steel, i.e. alloy or non-alloy steels, by the use of a transparent or reflecting optical unit for focusing a laser beam, and of an assist gas for the laser beam. The optical unit is of the multifocus type and is chosen from lenses, mirrors and combinations thereof. The assist gas is nitrogen or a nitrogen/oxygen mixture. The method of the invention makes it possible to obtain a low or almost zero oxidation of the cut face and to do so while increasing the cutting performance by about 40% compared with a laser cutting method using nitrogen or a nitrogen/oxygen mixture.

摘要翻译： 用于通过使用用于聚焦激光束的透明或反射光学单元和用于激光束的辅助气体来切割由结构钢或软钢（即合金或非合金钢）制成的工件的方法和装置。 光学单元是多焦点类型，并且选自透镜，反射镜及其组合。 辅助气体是氮气或氮气/氧气混合物。 与使用氮或氮/氧混合物的激光切割方法相比，本发明的方法使得可以获得切割面的低或几乎零氧化并且同时将切割性能提高约40％。

公开(公告)号：US06664504B2

公开(公告)日：2003-12-16

申请号：US10013533

申请日：2001-12-13

申请人： Christophe Bertez

发明人： Christophe Bertez

IPC分类号： B23K2600

CPC分类号： B23K26/0608 ,  B23K26/0665 ,  B23K26/0676 ,  B23K26/0734 ,  B23K26/123 ,  B23K26/14 ,  B23K26/1476 ,  B23K26/40 ,  B23K2101/35

摘要： Method and plant for cutting or welding by a laser beam with dual-flow and double-focus cutting head. The plant includes a laser generator to generate at least one main laser beam (10), a first optical element (1) enabling the main laser beam (10) to be divided into at least two subsidiary laser beams (11, 12), a first outlet nozzle (4) through which one (11) of the subsidiary laser beams passes, and a second outlet nozzle (3) through which the other (12) of the subsidiary laser beams passes, the first and second outlet nozzles (4, 3) being approximately coaxial one with the other. In this way, it is possible to focus the central beam (11) onto a focusing point (PF) by a first focusing element (1), such as a lens, and the other beam (12) onto an annular focusing zone (ZAF).

公开(公告)号：US6011238A

公开(公告)日：2000-01-04

申请号：US243817

申请日：1999-02-03

申请人： Christophe Bertez ,  Michel Delzenne

发明人： Christophe Bertez ,  Michel Delzenne

IPC分类号： B23K10/00 ,  H05H1/34

CPC分类号： H05H1/34 ,  H05H2001/3442 ,  H05H2001/3468 ,  H05H2001/3478

摘要： A plasma torch provided with an electrode (1) having an approximately cylindrical or frustocylindrical elongate shape, the electrode (1) including at least one recess (9) made in at least part of its external peripheral wall (15). In order to deflect and guide the gas flux entering the plasma torch, the recess (9) in the electrode (1) lies opposite the orifice or orifices (7) for introducing or injecting the gas flux into the torch.

摘要翻译： 一种具有电极（1）的等离子体焰炬，其具有近似圆柱形或截头圆柱形的细长形状，所述电极（1）包括在其外围壁（15）的至少一部分中制成的至少一个凹部（9）。 为了偏转和引导进入等离子体焰炬的气体通量，电极（1）中的凹部（9）与用于将气体通量引入或喷射到割炬中的孔口（7）相对。

公开(公告)号：US20060196859A1

公开(公告)日：2006-09-07

申请号：US11324655

申请日：2006-01-03

申请人： Christophe Bertez ,  Karim Chouf ,  Hakim Maazaoui

发明人： Christophe Bertez ,  Karim Chouf ,  Hakim Maazaoui

IPC分类号： B23K26/38 ,  B23K26/06

CPC分类号： B23K26/067 ,  B23K26/0604 ,  B23K26/0617 ,  B23K26/38

摘要： Methods for laser beam cutting metal workpieces with a thickness between 4 mm and 25 mm. A double focusing lens is provided to make it possible to focus a laser beam on a first focusing and a second focusing point. These points are separate from each other and both lie on the laser's optical axis. The lens has a focal length between 170 mm and 300 mm.

摘要翻译： 激光束切割金属工件的方法，厚度在4 mm和25 mm之间。 提供双重聚焦透镜以使得可以将激光束聚焦在第一聚焦点和第二聚焦点上。 这些点彼此分开，都位于激光的光轴上。 该镜头的焦距在170mm和300mm之间。

公开(公告)号：US20060186099A1

公开(公告)日：2006-08-24

申请号：US11324621

申请日：2006-01-03

申请人： Christophe Bertez ,  Karim Chouf ,  Hakim Maazaoui

发明人： Christophe Bertez ,  Karim Chouf ,  Hakim Maazaoui

IPC分类号： B23K26/06

CPC分类号： B23K26/067 ,  B23K26/0604 ,  B23K26/0617

摘要： The invention relates to a method for laser-beam cutting a metal workpiece having a thickness of less than 5 mm, in which a double focusing lens is employed making it possible to focus the laser beam at least at a first focusing point (PF1) and a second focusing point (PF2) which are separate from each other and lie on the beam axis, characterized in that the lens has a focal length (FL) of between 80 and 135 mm.

摘要翻译： 本发明涉及一种用于激光束切割厚度小于5mm的金属工件的方法，其中使用双重聚焦透镜，使得可以将激光束至少聚焦在第一聚焦点（PF1）和 第二聚焦点（PF2），其彼此分离并且位于光束轴上，其特征在于，所述透镜具有介于80和135mm之间的焦距（FL）。