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1. 发明申请

WO1990011161A1 ARRANGEMENT FOR WELDING COATED WORKPIECES USING A LASER BEAM 审中-公开
标题翻译：使用激光束焊接涂层工件的布置
公开(公告)号：WO1990011161A1
公开(公告)日：1990-10-04
申请号：PCT/DE1990000239
申请日：1990-03-22
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , BEHLER, Klaus , IMHOFF, Ralf , BEYER, Eckhard , GATZWEILER, Werner , MAISCHNER, Dora , HERZIGER, Gerd
发明人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ...
IPC分类号： B23K26/00
CPC分类号： B23K33/00 , B23K26/16 , B23K26/32 , B23K2101/34 , B23K2103/08 , B23K2103/50
摘要： In an arrangement for welding coated workpieces, in particular galvanized iron, by lap welding using a laser beam, at least one workpiece has a shaping in the region of the weld seam which keeps adjacent workpiece surfaces at a distance apart. To ensure that the shaping required to obtain the distance between the adjacent workpiece surfaces can be produced economically and to prevent the production of undesirable movements in the melt, the arrangement is designed so that the shaping is in the form of a straight knurl.
摘要翻译：在用于焊接涂覆的工件，特别是镀锌铁的布置中，通过使用激光束的搭接焊接，至少一个工件在焊缝区域具有成形，其使相邻的工件表面保持一定距离。为了确保获得相邻工件表面之间的距离所需的成形件可以经济地制造并且为了防止在熔体中产生不期望的运动，该设计被设计成使成形为直的滚花形式。

2. 发明申请

WO1992014578A1 PROCESS AND DEVICE FOR MACHINING WORKPIECES USING A LASER BEAM 审中-公开
标题翻译：使用激光束加工工件的工艺和装置
公开(公告)号：WO1992014578A1
公开(公告)日：1992-09-03
申请号：PCT/DE1992000115
申请日：1992-02-19
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , MAISCHNER, Dora , DRENKER, Alexander, J. , ABELS, Peter , BEYER, Eckhard
发明人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ...
IPC分类号： B23K26/02
CPC分类号： B23K26/032 , B23K26/03
摘要： In a process for machining workpieces using a laser beam, the machining operation, in particular the welding depth or the degree of through welding, is monitored by detection of optical and/or acoustic signals from a non-protective, laser-induced plasma or steam. To obtain reliable monitoring results as independent as possible of signal fluctuations, the signals undergo frequency analysis and the mean amplitudes (Ax, Ay) of two different frequency bands (x, y) of the analysed frequencies are used, together with a predetermined computational function, to determine a rating value (B).

3. 发明申请

WO1990007398A1 PROCESS AND DEVICE FOR MACHINING WORKPIECES USING A LASER BEAM 审中-公开
标题翻译：使用激光束工艺和加工工件的装置
公开(公告)号：WO1990007398A1
公开(公告)日：1990-07-12
申请号：PCT/DE1989000781
申请日：1989-12-21
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , BEYER, Eckhard , PETRING, Dierk , ABELS, Peter , HERZIGER, Gerd
发明人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ...
IPC分类号： B23K26/04
CPC分类号： B23K26/032 , B23K26/034 , B23K26/364
摘要： In a process for machining workpieces (10) using a laser beam (11), in particular for cutting, perforating and removing material from metallic workpieces (10), the machining site (12) of the workpiece (10) is monitored by means of a beam detector (13) by means of which the intensity of the laser beam is reduced when an upper limit value (14) is reached and increased when a lower limit value (15) is reached. In order to obtain a simply controlled process without exceeding a critical temperature, e.g. the evaporation temperature, the beam detector (13) measures the radiant heat (16) emanating from the machining site (12). This radiant heat is controlled in function of a predetermined range of temperature, the upper temperature of which is the upper limit value (14) and the lower temperature of which is the lower limit value (15). The laser beam is switched off when the upper limit value (14) is reached and switched on again when the lower limit value (15) is reached.
摘要翻译：根据具有激光束（11）的部件（10）的方法，特别是用于切割操作，金属部件（10）的穿孔和磨损，工件的加工点（12） 10）由辐射的检测器（13），由此当达到上限值（14），并且如果达到下限值（15），增加激光束的强度减小控制。为了在不超过临界温度（例如蒸发温度）的情况下以简单方式获得受控过程，辐射检测器（13）测量从加工点（12）发出的热辐射（16），其根据其上限温度形成上限值（14）并且下限温度形成下限值（15）的预定温度范围来控制辐射，当上限值（14）达到上限值达到下限值（15）时重新连接。

4. 发明申请

WO1988008353A1 JOINING DEVICE AND PROCESS USING LASER RADIATION 审中-公开
标题翻译：加工设备和使用激光辐射的工艺
公开(公告)号：WO1988008353A1
公开(公告)日：1988-11-03
申请号：PCT/DE1988000239
申请日：1988-04-20
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , HOESCH AG , BEYER, Eckhard , BEHLER, Klaus , WELSING, Klaus-Otto
发明人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , HOESCH AG
IPC分类号： B23K26/00
CPC分类号： B23K26/0846 , B23K26/073 , B23K26/0821 , B23K26/302
摘要： In a device for joining by means of laser radiation, in particular for welding edges, the laser beam travels essentially parallel to the plane of the joint gap and is directed essentially perpendicular to the joint line. To ensure that the energy of the laser radiation is absorbed almost entirely in the region of the joint, the laser radiation is polarized mainly parallel to the plane of the joint gap and/or the laser beam (20) is shaped or focused at right angles to the joint gap (12) in the form of a strip parallel to said gap.
摘要翻译：在用于通过激光辐射（特别是焊接边缘）接合的装置中，激光束基本上平行于接合间隙的平面行进，并且基本上垂直于接合线。为了确保激光辐射的能量几乎完全被吸收在接头的区域内，激光辐射主要是平行于接合间隙的平面偏振和/或激光束（20）成直角或成直角以平行于所述间隙的带状的形式连接到接合间隙（12）。

5. 发明申请

WO1993009909A1 METHOD FOR REMOVING MATERIAL FROM MOVING METAL WORKPIECES 审中-公开
标题翻译：从移动金属工件移除材料的方法
公开(公告)号：WO1993009909A1
公开(公告)日：1993-05-27
申请号：PCT/DE1992000950
申请日：1992-11-11
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , FRANKE, Jörg , SCHULZ, Wolfgang , HERZIGER, Gerd
发明人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ...
IPC分类号： B23K26/14
CPC分类号： B23K7/008 , B23K26/034 , B23K26/06 , B23K26/0608 , B23K26/0676 , B23K26/073 , B23K26/142 , B23K26/147 , B23K26/1476 , B23K26/60 , B23P25/006
摘要： A method is disclosed for removing material from moving metal workpieces (10), in particular for cutting sheet metal. It entails preheating, without melting, the surface (11) of the workpiece (10) to a temperature at which ignition is triggered by a combustible gas (12) directed onto the preheated section (13) as a jet under pressure, while burnt material from the workpiece (10) is blown away from the cut recess (14) thus produced. In order to achieve smooth edges on large-gauge workpieces with a relatively high feed-rate, a laser beam (15) is also directed onto the cutting front (16) in the cut recess.
摘要翻译：公开了用于从金属工件（10）移除材料的方法，特别是用于切割金属板材。它需要预热（而不熔化）工件（10）的表面（11）到达点火的温度，该温度是由作为压力的射流引导到预热部分（13）上的可燃气体（12）触发的，同时燃烧的材料从工件（10）被吹离远离由此产生的切割凹槽（14）。为了以较高的进给速度在大规格工件上实现平滑的边缘，激光束（15）也被引导到切割凹槽中的切割前部（16）上。

6. 发明申请

WO1991003086A1 GAS LASER 审中-公开
标题翻译：气体激光
公开(公告)号：WO1991003086A1
公开(公告)日：1991-03-07
申请号：PCT/DE1990000621
申请日：1990-08-11
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , HERZIGER, Gerd , LOOSEN, Peter
发明人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ...
IPC分类号： H01S03/0975
CPC分类号： H01S3/0975 , H01S3/036 , H01S3/076
摘要： A gas laser, in particular a carbon dioxide laser, comprises two coaxial high-voltage electrodes (5, 7) which enclose a gas-discharge space (10), in particular in the form of an annular gap, through which gas flows. Deflecting mirrors (3, 11) which repeatedly deflect the beam path are arranged at the ends of the gas-discharge space. The gas-discharge space is connected to a cooling channel (15) in which the gas is recycled. The cooling channel has at least one fan coaxial with the gas-discharge space and at least one gas cooler coaxial with the gas-discharge space. To simplify the construction of the gas laser and to reduce the radial dimensions, the cooling channel (15) with the gas cooler (8) in which the gas is recycled, is arranged inside the inner electrode (5) and the fan is a radial fan (13) the outer diameter (16) of which is at the most approximately equal to the diameter (17) of the deflecting mirrors (3, 11).

7. 发明申请

WO1988009578A1 GAS LASER 审中-公开
标题翻译：气体激光
公开(公告)号：WO1988009578A1
公开(公告)日：1988-12-01
申请号：PCT/DE1988000303
申请日：1988-05-20
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , HERZIGER, Gerd , LOOSEN, Peter , MÄRTEN, Otto , BÖNING, Hartwig
发明人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ...
IPC分类号： H01S03/097
CPC分类号： H01S3/0975 , H01S3/036 , H01S3/081
摘要： A gas laser, in particular a carbon dioxide laser has a gas discharge space (10) which contains no incorporated structures between high-voltage electrodes (11, 31), a multiple-zigzag beam path of two resonator end mirrors between mutually opposed reflectors (24, 27), and gas inlet (18) and gas outlet (19) openings in the gas discharge space (10) which is sealed to the exterior. The output of a gas laser with the above-mentioned features is increased by ensuring that a continuous steam of gas is present in the gas discharge space (10) and that the direction of gas flow (20) is parallel to the longitudinal axis (21) of the gas discharge space (10) situated between the reflectors (24, 27).
摘要翻译：气体激光器，特别是二氧化碳激光器具有在高电压电极（11,31）之间不包含结构的气体放电空间（10），在相互相对的反射器之间的两个谐振器端镜的多个锯齿形光束路径 24,27），以及气体放出空间（10）中的气体入口（18）和气体出口（19）开口，其被密封到外部。具有上述特征的气体激光器的输出通过确保在气体放电空间（10）中存在气体的连续蒸汽并且气体流动方向（20）平行于纵向轴线（21）而增加）位于反射器（24,27）之间的气体放电空间（10）。

8. 发明申请

WO1989010642A1 LASER 审中-公开
标题翻译：激光
公开(公告)号：WO1989010642A1
公开(公告)日：1989-11-02
申请号：PCT/DE1989000250
申请日：1989-04-21
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , DU, Keming , LOOSEN, Peter , HERZIGER, Gerd
发明人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ...
IPC分类号： H01S03/081
CPC分类号： H01S3/081 , H01S3/08059
摘要： Laser, with a multiple-deflection beam path between two final resonator mirrors and at least one reflector which retroreflects the laser beam in a multiple-deflection path, the axis of said reflector being, in particular, parallel to the axis of a second reflector. To improve the beam quality while maintaining the comparatively low sensitivity to adjustment of the laser, the beam path is deflected at least twice by the retroreflecting reflector.
摘要翻译：激光器具有在两个最终谐振器反射镜之间的多偏转光束路径和至少一个在多偏转路径中回射激光束的反射器，所述反射器的轴线尤其平行于第二反射器的轴线。为了提高光束质量，同时保持对激光器调节的相对较低的灵敏度，光束路径被回射反射器偏转至少两次。

9. 发明申请

WO1989010641A1 GAS LASER 审中-公开
标题翻译：气体激光
公开(公告)号：WO1989010641A1
公开(公告)日：1989-11-02
申请号：PCT/DE1989000248
申请日：1989-04-21
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , HERZIGER, Gerd , LOOSEN, Peter
发明人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ...
IPC分类号： H01S03/081
CPC分类号： H01S3/038 , H01S3/081
摘要： A laser, in particular a carbon dioxide laser, has a multiple-deflection beam path between two final resonator mirrors. The deflections of the beam path are formed by plane reflector surfaces, beam path sections being arranged spatially between the reflectors. To obtain a laser of this type with minimal dimensions, the beam path sections follow a spiral trajectory.
摘要翻译：激光器，特别是二氧化碳激光器，在两个最终谐振镜之间具有多重偏转光束路径。光束路径的偏转由平面反射器表面形成，光束路径部分空间上布置在反射器之间。为了获得具有最小尺寸的这种类型的激光器，光束路径部分遵循螺旋轨迹。

10. 发明申请

WO1991002621A1 PROCESS AND DEVICE FOR WELDING BY LASER BEAM 审中-公开
标题翻译：用激光焊接焊接的工艺和装置
公开(公告)号：WO1991002621A1
公开(公告)日：1991-03-07
申请号：PCT/DE1990000622
申请日：1990-08-11
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ... , ZWICK, Axel , IMHOFF, Ralf
发明人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ...
IPC分类号： B23K26/14
CPC分类号： B23K26/14 , B23K26/147 , B23K26/244 , B23K26/32 , B23K2101/35 , B23K2103/08 , B23K2103/50
摘要： Process for welding by laser beam or similar high-energy radiation, in which two contiguous workpieces have a coating between them, the vaporization point of which is lower than the melting point of the material of the workpieces, and in which a gas flow is directed onto the weld. To improve this process so that coated workpieces can be welded without gaps and so that gas can escape through the vapour capillaries of the weld, a current of gas which promotes degasification of the vaporized coating through the vapour capillaries of the weld is used in addition to the current of protective or working gas which flows around the weld.

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