专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5252805A Laser beam machining method 失效
标题翻译：激光束加工方法
公开(公告)号：US5252805A
公开(公告)日：1993-10-12
申请号：US852184
申请日：1992-05-29
申请人： Yoshinori Nakata , Etsuo Yamazaki , Norio Karube , Tsuyoshi Nagamine
发明人： Yoshinori Nakata , Etsuo Yamazaki , Norio Karube , Tsuyoshi Nagamine
IPC分类号： B23K26/00 , B23K26/08 , B23K26/36 , B23K26/38 , G05B19/416
CPC分类号： G05B19/4163 , B23K26/0838 , B23K26/382 , G05B2219/35249 , G05B2219/43129 , G05B2219/43147 , G05B2219/45165
摘要： A laser beam machining method for cutting a workpiece in accordance with a machining program composed of a succession of move commands and laser output commands. An angle of a machining path is calculated on the basis of a move command under execution and a subsequent read out move command (S2, S3). The angle of the machining path is compared with a preset angle (S4), and when the angle of the machining path is more acute than the preset angle, the movement for machining based on the move command under execution is decelerated and stopped (S5). In this case, the laser output command is changed from a cutting condition to a piercing condition, to carry out a piercing operation, and when the piercing operation is completed, the movement for machining is restarted in accordance with the subsequent move command. When the movement for machining is restarted, the laser output command is changed from the piercing condition to the cutting condition in accordance with the movement for machining. Accordingly, a clean-cut acute-angle portion can be obtained by this machining.
摘要翻译： PCT No.PCT / JP91 / 01371 Sec。 371日期：1992年5月29日 102（e）日期1992年5月29日PCT 1991年10月5日PCT PCT。出版物WO92 / 06815 日期：1992年04月30日。一种用于根据由一系列移动命令和激光输出命令组成的加工程序切割工件的激光束加工方法。基于正在执行的移动命令和随后的读出移动命令（S2，S3）来计算加工路径的角度。将加工路径的角度与预设角度（S4）进行比较，并且当加工路径的角度比预设角度更尖锐时，基于执行中的移动命令的加工移动减速停止（S5）。在这种情况下，激光输出指令从切断状态变为穿刺状态，进行穿刺动作，当穿刺动作完成时，根据随后的移动指令重新起动加工动作。当重新开始加工运动时，激光输出命令根据加工运动从穿孔状态切换到切割状态。因此，通过该加工可以获得清洁的锐角部分。

2. 发明授权

US5326957A Apparatus for and method of welding surface-treated metallic workpieces 失效
标题翻译：表面处理金属工件的焊接和焊接方法
公开(公告)号：US5326957A
公开(公告)日：1994-07-05
申请号：US938177
申请日：1992-12-04
申请人： Norio Karube , Yoshinori Nakata , Atsushi Mori , Etsuo Yamazaki
发明人： Norio Karube , Yoshinori Nakata , Atsushi Mori , Etsuo Yamazaki
IPC分类号： B23K9/16 , B23K9/167 , B23K9/23 , B23K10/02
CPC分类号： B23K9/23 , B23K9/167
摘要： Surface-treated metallic workpieces such as zinc-plated steel plates are welded with high quality while they are being held in intimate contact with each other. An auxiliary gas including an oxygen gas is ejected from a space (7) around an electrode (1) through a nozzle (8) to a welding point (9) on overlapping surface-treated metallic workpieces such as zinc-plated steel plates (3a, 3b). When the zinc-plated steel plates (3a, 3b) are welded in the atmosphere of the auxiliary gas, the surface layers of zinc and oxygen react with each other, producing a solid oxide such as zinc oxide or zinc peroxide. Therefore, a gas such as a zinc vapor is prevented from being produced between the overlapping zinc-plated steel plates (3a, 3b). The welded joint is of high quality without blowholes which would otherwise blow away molten steel.
摘要翻译： PCT No.PCT / JP92 / 00517 Sec。 371日期1992年12月4日第 102（e）日期1992年12月4日PCT提交1992年4月21日PCT公布。出版物WO92 / 19412 PCT 日期：1992年11月12日。表面处理的金属工件如镀锌钢板在保持彼此紧密接触的同时以高品质焊接。包括氧气的辅助气体从电极（1）周围的空间（7）通过喷嘴（8）喷射到重叠的表面处理金属工件（例如镀锌钢板（3a））上的焊接点（9），3b）。当在辅助气体的气氛中焊接镀锌钢板（3a，3b）时，锌和氧的表面层相互反应，生成氧化锌或过氧化锌等固体氧化物。因此，防止在重叠的镀锌钢板（3a，3b）之间产生诸如锌蒸气的气体。焊接接头质量高，无气孔，否则会吹走钢水。

3. 发明授权

US5434383A Piercing method for laser processing 失效
标题翻译：激光加工的穿孔方法
公开(公告)号：US5434383A
公开(公告)日：1995-07-18
申请号：US075580
申请日：1993-06-16
申请人： Yoshinori Nakata , Norio Karube , Etsuo Yamazaki
发明人： Yoshinori Nakata , Norio Karube , Etsuo Yamazaki
IPC分类号： B23K26/00 , B23K26/38
CPC分类号： B23K26/382
摘要： A piercing method using a laser, in which the processing time is made shorter; a thermal runaway is prevented; and dispersion of the processing time is made smaller. According to this method, piercing operation is started with an initial pulse frequency P.sub.0 and an initial pulse duty ratio Q.sub.0, and the pulse frequency and the pulse duty ratio are increased by increments P and Q, respectively, with every passage of a predetermined time T. The pulse frequency and the pulse duty ratio are increased by stages. After this increase is repeated a predetermined number of times, or after the passage of a predetermined time from the start of processing, processing is continued to the end maintaining the increased values. This piercing method enables the processing time to be reduced to 1/3 to 1/5, as compared with the conventional method. In addition, this method prevents a thermal runaway, and reduces the dispersion of the processing time.
摘要翻译： PCT No.PCT / JP92 / 01311 Sec。 371日期：1993年6月16日 102（e）日期1993年6月16日PCT提交1992年10月9日PCT公布。出版物WO93 / 07987 日期：1993年04月29日。一种使用激光的穿孔方法，其中处理时间缩短; 防止热失控; 并且使处理时间的分散更小。根据该方法，以初始脉冲频率P0和初始脉冲占空比Q0开始穿刺操作，并且脉冲频率和脉冲占空比分别以增量P和Q增加，每次通过预定时间T 脉冲频率和脉冲占空比逐级增加。在该增加重复预定次数之后，或者在从开始处理经过预定时间之后，继续进行保持增加值的处理。这种穿孔方法与常规方法相比能够将处理时间缩短到1/3至1/5。此外，该方法防止热失控，并且减少处理时间的分散。

4. 发明授权

US4921357A Laser oscillator device 失效
标题翻译：激光振荡器装置
公开(公告)号：US4921357A
公开(公告)日：1990-05-01
申请号：US283478
申请日：1988-12-02
申请人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
发明人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
IPC分类号： H01S3/097 , H01S3/0975
CPC分类号： H01S3/0975
摘要： A laser oscillator device applies a high-frequency voltage to a plurality of discharge regions through a dielectric for producing a high-frequency discharge for laser pumping. The laser oscillator device includes a DC power supply (16), and a high-frequency power supply (18, 19, 20, 21) for converting a DC voltage into a high-frequency voltage. The DC power supply (16) and the high-frequency power supply (18, 19, 20, 21) are coupled to each other by a filter (30). The filter (30) prevents a high-frequency component from being fed back from the high-frequency power supply (18, 19, 20, 21) to prevent the laser oscillator device from operating unstably due to parasitic oscillation. Other arrangements are disclosed for preventing interference between the high-frequency power supply and the DC power supply.

5. 发明授权

US4887272A Laser oscillator device 失效
标题翻译：激光振荡器装置
公开(公告)号：US4887272A
公开(公告)日：1989-12-12
申请号：US295203
申请日：1988-12-20
申请人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
发明人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
IPC分类号： H01S3/097 , H01S3/0975 , H01S3/134
CPC分类号： H01S3/0975
摘要： A laser oscillator device applies a high-frequency voltage to a plurality of discharge regions through a dielectric for producing a high-frequency discharge for laser pumping. The laser oscillator device has current detectors (CT2a, CT2b) for detecting currents flowing from high-frequency power supplies (26a, 26b) into discharge tubes (1). The current detectors are disposed in positions to detect mutual currents between the adjacent discharge tubes. The currents detected by the current detectors (CT2a, CT2b) are used as feedback currents for preventing uncontrollable conditions of the currents due to a coupling current. The laser oscillator device also has a mechanism for preventing interference in the discharge regions.

6. 发明授权

US4930135A Laser oscillator device 失效
公开(公告)号：US4930135A
公开(公告)日：1990-05-29
申请号：US283479
申请日：1988-12-05
申请人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
发明人： Norio Karube , Akira Egawa , Etsuo Yamazaki , Nobuaki Iehisa , Mitsuo Manabe
IPC分类号： H01S3/097 , H01S3/0975
CPC分类号： H01S3/0975
摘要： A laser oscillator device applies a high-frequency voltage to a plurality of discharge regions through a dielectric for producing a high-frequency discharge for laser pumping. Various interferences in the laser oscillator device are prevented to allow the device to produce a stable output. The laser oscillator device includes DC power supplies (DC12a, DC13a, DC13c, DC13d) and high-frequency power supplies (RF12b, RF13b, RF14b, RF15b) which are integrally coupled to prevent electromagnetic interference through cables for allowing stable laser oscillation and also to prevent various other interferences.

7. 发明授权

US5065329A Laser oscillator control method for changing a currently executing command program 失效
标题翻译：激光振荡器控制方法，用于更改当前执行的命令程序
公开(公告)号：US5065329A
公开(公告)日：1991-11-12
申请号：US565897
申请日：1990-08-10
申请人： Etsuo Yamazaki , Tsuyoshi Nagamine , Shigeru Isohata
发明人： Etsuo Yamazaki , Tsuyoshi Nagamine , Shigeru Isohata
IPC分类号： B23K26/00 , B23K26/08 , G05B19/4067 , G05B19/409 , H01S3/097 , H01S3/104
CPC分类号： B23K26/0853 , G05B19/4067 , G05B19/409 , H01S3/104 , G05B2219/34394 , G05B2219/35352 , G05B2219/36089 , G05B2219/45165
摘要： A laser machining control method using a numerical control system for controlling an X-Y table. A command program (2) in a memory is read out for each one block to cause a lamp on an operation panel (5) to be lit. An operator changes, sets and inputs an output power (S), a frequency (P) and a pulse duty (Q) depending on required conditions. The input conditions are applied to a high-frequency power source (6), and laser machining is carried out under these conditions.

8. 发明授权

US4900893A Laser oscillation control system 失效
标题翻译：激光振荡控制系统
公开(公告)号：US4900893A
公开(公告)日：1990-02-13
申请号：US273516
申请日：1988-11-03
申请人： Etsuo Yamazaki , Tsuyoshi Nagamine , Shigeru Isohata
发明人： Etsuo Yamazaki , Tsuyoshi Nagamine , Shigeru Isohata
IPC分类号： B23K26/00 , B23K26/08 , G05B19/408 , H01S3/097 , H01S3/104
CPC分类号： B23K26/0853 , G05B19/408 , G05B2219/35252 , G05B2219/45165
摘要： A laser oscillation control system performing laser beam machining by controlling an X-Y table by a numerical control system.An output of a laser oscillator is controlled by a G-code included in a program from a command system input to a numerical control system. An output power is commanded by an address S, a frequency by an address P and a pulse duty by an address Q. These command data are fed to a high-frequency power source to control a laser output.
摘要翻译： PCT No.PCT / JP88 / 00185 Sec。 371日期：1988年11月3日 102（e）日期1988年11月3日PCT提交1988年2月19日PCT公布。出版物WO88 / 06938 日期：1988年9月22日。激光振荡控制系统通过数控系统控制X-Y表进行激光束加工。激光振荡器的输出由包括在从输入到数字控制系统的命令系统的程序中的G代码控制。输出功率由地址S指定，频率由地址P和脉冲占空比由地址Q指令。这些命令数据被馈送到高频电源以控制激光输出。

9. 发明授权

US4937422A Method of correcting laser output power 失效
标题翻译：激光输出功率校正方法
公开(公告)号：US4937422A
公开(公告)日：1990-06-26
申请号：US320303
申请日：1989-03-02
申请人： Tsuyoshi Nagamine , Etsuo Yamazaki , Mitsuo Kinoshita , Nobuaki Iehisa
发明人： Tsuyoshi Nagamine , Etsuo Yamazaki , Mitsuo Kinoshita , Nobuaki Iehisa
IPC分类号： B23K26/00 , G05B19/404 , H01S3/102 , H01S3/131 , H01S3/134
CPC分类号： H01S3/134 , B23K26/705 , G05B19/404 , G05B2219/45165 , G05B2219/49353
摘要： There is disclosed a method of correcting the laser beam output power of an NC laser beam cutting machine composed of a computerized numerical control (CNC) apparatus and a laser beam cutting machine. When a laser is initially energized, a correcting coefficient is determined from a laser beam output power command value and an actual laser beam output power by a correcting means (11), and the actual laser beam output power is measured at each periodic interval of time by an output measuring device (33). The NC laser beam cutting machine is controlled by a command control means (13) to eliminate the difference between the laser beam output power command value and the actual laser beam output power. When the laser is initially energized, a long-term variation in the laser beam output power is corrected, and when an actual cutting operation is carried out, a short-term variation in the laser beam output power is corrected, so that the laser output power can be produced accurately.

10. 发明授权

US5539180A Method of laser beam welding galvanized steel sheets with an auxiliary gas containing oxygen 失效
标题翻译：激光束焊接镀锌钢板与含氧气体的辅助气体的方法
公开(公告)号：US5539180A
公开(公告)日：1996-07-23
申请号：US859387
申请日：1992-05-26
申请人： Atsushi Mori , Yoshinori Nakata , Etsuo Yamazaki
发明人： Atsushi Mori , Yoshinori Nakata , Etsuo Yamazaki
IPC分类号： B23K26/00 , B23K26/12 , B23K26/14 , B23K26/32 , B23K35/38
CPC分类号： B23K26/123 , B23K26/12 , B23K26/125 , B23K26/14 , B23K26/1437 , B23K26/1476 , B23K26/32 , B23K26/322 , B23K35/38 , B23K2201/006 , B23K2201/34 , B23K2203/04 , B23K2203/50
摘要： Oxygen is mixed with another gas to form an auxiliary gas that will permit a welding of zinc-plated steel sheets (3a and 3b) without producing blowholes. An oxygen (O.sub.2) gas cylinder (4a) is provided in addition to an argon (Ar) gas cylinder (4b), for forming the mixed auxiliary gas, and the argon gas and the oxygen gas are mixed in a mixer (6) before being supplied to a machining head (7) and jetted onto a machining spot (9) through a nozzle (8). The oxygen oxidizes the zinc of the zinc-plated steel sheets (3a and 3b) to produce zinc oxide and zinc peroxide, to thereby prevent evaporation and minimize spatters, and thus permits a laser welding with a minimum generation of blowholes.
摘要翻译： PCT No.PCT / JP91 / 00752 Sec。 371日期：1992年5月26日 102（e）日期1992年5月26日PCT提交1991年5月31日PCT公布。出版物WO92 / 15422 日期：1992年9月17日氧气与另一种气体混合形成辅助气体，允许镀锌钢板（3a和3b）焊接而不产生气孔。除了用于形成混合辅助气体的氩（Ar）气瓶（4b）之外还设置氧气（O2）气瓶（4a），并且在混合器（6）中将氩气和氧气混合在一起被提供给加工头（7）并通过喷嘴（8）喷射到加工点（9）上。氧化锌镀锌钢板（3a和3b）的锌以产生氧化锌和过氧化锌，从而防止蒸发并使飞溅最小化，从而允许以最小的气泡产生激光焊接。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式