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1. 发明申请

WO1990009858A1 PULSE WELDING APPARATUS 审中-公开
标题翻译：脉冲焊接设备
公开(公告)号：WO1990009858A1
公开(公告)日：1990-09-07
申请号：PCT/JP1990000247
申请日：1990-02-27
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , TABATA, Yoichiro , UEGURI, Shigeo , UEDA, Yoshihiro , MIZUNO, Masanori; , KATOU, Yoshiaki; , NAGANO, Osamu;
发明人： MITSUBISHI DENKI KABUSHIKI KAISHA
IPC分类号： B23K09/09
CPC分类号： G05F1/08 , B23K9/093
摘要： A pulse welding apparatus such as of arc welding or short-circuiting arc welding that effects the welding utilizing pulse discharge that develops at the tip of a wire electrode, wherein undercut which is a defect in the shape of welding beads develops which deteriorates the welding when the timing for removing the molten mass grown at the tip of the wire electrode is delayed due to a change in the welding condition or disturbance. To eliminate this defect, the pulse current fed to the material to be welded is divided into a plurality of pulse groups, the pulse groups are allowed to have an average current of a maximum peak after a predetermined period of time has passed from the start of the pulse, the pulse current groups are allowed to have a mountain shape in compliance with the removing phenomenon of the molten mass, and pulse period, pulse width and pulse gap of pulse current groups are differed depending upon the wire feed speed or the pulse group period. In the short-circuiting arc welding method, furthermore, the short-circuiting and arcing periods are instantaneously controlled depending on the detected arc length or the wire feed speed to quickly obtain ideal arc length. By so doing, the molten mass can be regularly removed and moved onto the material to be welded. Even in the short-circuiting arc welding, furthermore, variation decreases between the short-circuiting period and the arcing period. Therefore, growth and removal of the molten mass can be controlled independently of the magnetic blow phenomenon of arc, and favorable welding is carried out to improve the quality irrespective of a change in the shape of welding joint and earth point in real arc.
摘要翻译：诸如电弧焊或短路电弧焊的脉冲焊接装置，其利用在线电极的尖端处产生的脉冲放电进行焊接，其中形成焊接珠形状的缺陷的底切，这导致焊接劣化由于焊接条件或干扰的变化，用于去除在线电极的尖端生长的熔融质量的时间被延迟。为了消除该缺陷，馈送到待焊接材料的脉冲电流被分成多个脉冲组，脉冲组允许在从一开始就经过预定时间段之后具有最大峰值的平均电流脉冲电流组允许符合熔融物质的去除现象的山形，并且脉冲电流组的脉冲周期，脉冲宽度和脉冲间隙根据送丝速度或脉冲组而不同期。此外，在短路电弧焊接方法中，根据检测出的电弧长度或送丝速度瞬时控制短路和电弧时间，以快速获得理想的电弧长度。通过这样做，熔融物质可以被定期地移除并移动到待焊接的材料上。此外，即使在短路电弧焊接中，短路时间段与电弧周期的变化也减小。因此，可以独立于电弧的磁冲现象来控制熔融体的生长和去除，并且进行良好的焊接以提高质量，而与实际电弧中的焊接接头和接地点的形状的变化无关。

2. 发明申请

WO1990009857A1 PULSE WELDING APPARATUS 审中-公开
标题翻译：脉冲焊接设备
公开(公告)号：WO1990009857A1
公开(公告)日：1990-09-07
申请号：PCT/JP1990000245
申请日：1990-02-27
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , TABATA, Yoichiro , UEGURI, Shigeo , UEDA, Yoshihiro , MIZUNO, Masanori; , KATOU, Yoshiaki; , NAGANO, Osamu;
发明人： MITSUBISHI DENKI KABUSHIKI KAISHA
IPC分类号： B23K09/09
CPC分类号： B23K9/0732 , B23K9/0735 , B23K9/092
摘要： In a pulse welding apparatus which effects the arc welding or the short-circuiting arc welding utilizing pulse discharge that generates at the tip of the wire electrode, the contact position becomes irregular in the torch chip of wire electrode due to bend in the wire electrode and the arc length changes instantaneously between the tip of the wire electrode and the material to be welded, causing the molten mass to be removed irregularly. In order to detect instantaneous change in the arc length, therefore, the arc voltage and arc current are detected between the wire electrode and the material to be welded, the detected arc voltage is converted into a reference arc voltage change and is then compared with the above detected arc voltage, to calculate a true arc length that changes from time to time. There are further set a mimic arc length signal and a mimic welding current reference waveform whose levels change depending upon the welding steps, the mimic arc length signal is compared with the calculated arc length signal, and the mimic welding current reference waveform is corrected depending upon a difference in the signals to produce a welding current waveform which is then instantaneously controlled depending on the detected arc length or the wire feed speed to quickly obtain an ideal arc length. In the welding steps, furthermore, the wire electrode performs stable welding maintaining the mimic arc length.
摘要翻译：在利用在线电极的尖端产生的脉冲放电的电弧焊接或短路电弧焊接的脉冲焊接装置中，由于线电极的弯曲，线电极的焊炬芯片的接触位置变得不规则，电弧长度在线电极的尖端和被焊接材料之间瞬间变化，导致熔融体不规则地去除。因此，为了检测电弧长度的瞬时变化，在线电极和待焊接材料之间检测电弧电压和电弧电流，将检测到的电弧电压转换为参考电弧电压变化，然后与检测到电弧电压，计算出不时变化的真弧长度。进一步设置模拟弧长信号和模拟焊接电流参考波形，其电平根据焊接步骤而变化，将模拟弧长信号与计算出的电弧长度信号进行比较，并且模拟焊接电流参考波形根据产生焊接电流波形的信号的差异，该焊接电流波形根据检测到的电弧长度或送丝速度瞬时控制，以快速获得理想的电弧长度。此外，在焊接步骤中，线电极保持模拟弧长度的稳定焊接。

3. 发明申请

WO1989001713A1 METAL VAPOR LASER 审中-公开
标题翻译：金属蒸气激光
公开(公告)号：WO1989001713A1
公开(公告)日：1989-02-23
申请号：PCT/JP1988000805
申请日：1988-08-13
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , IWATA, Akihiko; , UEGURI, Shigeo; , HARA, Kazuhiko; , OKAMOTO, Tatsuki; , UEDA, Yoshihiro; , ITOU, Hiroshi;
发明人： MITSUBISHI DENKI KABUSHIKI KAISHA
IPC分类号： H01S03/097
CPC分类号： H01S3/031
摘要： This invention relates to a metal vapor laser having a discharge tube. The laser of the invention is provided with a second pulse circuit (16) which generates a second pulse voltage after a predetermined delay time of the generation of a first pulse voltage and is provided separately from the first pulse circuit (200) which generates the first pulse voltage performing lasing. After the first pulse voltage is applied to a discharge tube, the second pulse voltage is applied to the discharge tube and the output voltage of the second pulse circuit (16) is set to be lower than that of the first pulse circuit (200), so that relaxation from a lower level to a base reference level is promoted for each pulse, inversion distribution at the next pulse is made more complete and high efficiency can be obtained even when the number of pulse repetitions is large.
摘要翻译：本发明涉及具有放电管的金属蒸汽激光器。本发明的激光器设置有第二脉冲电路（16），其在产生第一脉冲电压的预定延迟时间之后产生第二脉冲电压，并且与产生第一脉冲电压的第一脉冲电路（200）分开设置，脉冲电压执行激光。在将第一脉冲电压施加到放电管之后，将第二脉冲电压施加到放电管，并将第二脉冲电路（16）的输出电压设置为低于第一脉冲电路（200）的输出电压，使得对于每个脉冲促进从较低电平到基准参考电平的松弛，使得下一个脉冲的反转分布更加完整，即使当脉冲重复次数大时也可以获得高效率。

4. 发明申请

WO1991001842A1 PULSE WELDING APPARATUS 审中-公开
标题翻译：脉冲焊接设备
公开(公告)号：WO1991001842A1
公开(公告)日：1991-02-21
申请号：PCT/JP1990000246
申请日：1990-02-27
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , TABATA, Yoichiro , UEGURI, Shigeo , UEDA, Yoshihiro , MIZUNO, Masanori; , KATOU, Yoshiaki; , NAGANO, Osamu;
发明人： MITSUBISHI DENKI KABUSHIKI KAISHA
IPC分类号： B23K09/09
CPC分类号： B23K9/1062 , B23K9/0734 , B23K9/092 , B23K9/0953 , G05F1/08
摘要： A pulse welding apparatus such as a pulse arc welding apparatus or a short-circuiting arc welding apparatus utilizing pulse discharge, wherein there is provided a pulse current waveform control circuit which feeds a desired pulse arc current to the arc welding power source that supplies pulse arc current to the welding load unit, the circuit being so designed as to effect optimum welding without adjusting or changing the circuit components. Even under various welding conditions or environments, furthermore, it is allowed to prevent defective welding during the arc welding caused by the magnetic blow phenomenon and to prevent defective welding such as undercut or sputtering caused by disturbances in the welding torch. The pulse current waveform control circuit is realized as a microcomputerized digital circuit, and the pulse arc current is controlled by the control operation of a program, in order to realize a desired current control by changing the program but without changing the circuit. By utilizing the memory, furthermore, the optimum welding current waveform parameter or a desired arc length signal is learned during the first welding, and the arc length feedback control or the current waveform control is effected during the second welding using a program prepared with the thus learned welding current waveform parameter or the desired arc length signal as a reference. Thus, the molten mass is prevented from being erroneously removed by the magnetic blow phenomenon, and a change in the arc length is suppressed that is caused by disturbance in the welding torch, contributing to improving the welding quality under various welding environments.

5. 发明申请

WO1990009856A1 PULSE WELDING APPARATUS 审中-公开
标题翻译：脉冲焊接设备
公开(公告)号：WO1990009856A1
公开(公告)日：1990-09-07
申请号：PCT/JP1990000244
申请日：1990-02-27
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , MIZUNO, Masanori; , KATOU, Yoshiaki; , NAGANO, Osamu; , TABATA, Yoichiro , UEGURI, Shigeo , UEDA, Yoshihiro
发明人： MITSUBISHI DENKI KABUSHIKI KAISHA
IPC分类号： B23K09/09
CPC分类号： B23K9/092
摘要： In a pulse welding apparatus such as a pulse arc welding apparatus or a short-circuiting arc welding apparatus utilizing pulse discharge, development of welding defect in the welded beads is eliminated that results from irregular timing for removing molten mass caused by magnetic blow phenomenon of arc due to difference in the shape of welding joint or due to difference in the earth point. A pulse current supplied to a material to be welded is divided into groups of pulses. Gaps among the pulses in the pulse current groups, base current period supplied between the pulse current groups, base current, pulse peak and pulse width of the pulses, and, in the case of the short-circuiting arc welding, the short-circuiting period and arcing period, are instantaneously controlled depending on the arc length that is detected in order to instantaneously obtain ideal arc length. By doing so, the molten mass can be regularly removed and moved onto the material to be welded. Even in the short-circuiting arc welding, furthermore, variation decreases between the short-circuiting period and the arcing period. Therefore, growth and removal of the molten mass can be controlled independently of the magnetic blow phenomenon of arc, and favorable welding is carried out to improve the quality irrespective of a change in the shape of welding joint and earth point in real arc.
摘要翻译：在使用脉冲放电的脉冲焊接装置或短路电弧焊接装置等的脉冲焊接装置中，消除了焊接珠的焊接缺陷的发展，这是由于由电弧的电磁现象引起的熔融物质的不规则定时由于焊接接头的形状不同或由于接地点的差异。供给待焊接材料的脉冲电流被分成脉冲组。脉冲电流组中的脉冲之间的间隙，脉冲电流组之间提供的基极电流周期，基极电流，脉冲峰值和脉冲的脉冲宽度，以及在短路电弧焊接的情况下，短路周期和电弧时间根据所检测的电弧长度立即控制，以瞬时获得理想的电弧长度。通过这样做，熔融物质可以被规则地去除并移动到待焊接的材料上。此外，即使在短路电弧焊接中，短路时间段与电弧周期的变化也减小。因此，可以独立于电弧的磁冲现象来控制熔融体的生长和去除，并且进行良好的焊接以提高质量，而与实际电弧中的焊接接头和接地点的形状的变化无关。

6. 发明申请

WO1988009521A1 OPTICAL PULSE WAVEFORM SHAPING APPARATUS 审中-公开
标题翻译：光学波形波形形状设备
公开(公告)号：WO1988009521A1
公开(公告)日：1988-12-01
申请号：PCT/JP1988000507
申请日：1988-05-26
申请人： MITSUBISHI DENKI KABUSHIKI KAISHA , OKAMOTO, Tatsuki; , UEGURI, Shigeo; , HARA, Kazuhiko; , IWATA, Akihiko; , UEDA, Yoshihiro;
发明人： MITSUBISHI DENKI KABUSHIKI KAISHA
IPC分类号： G02B27/00
CPC分类号： H01S3/0057 , G02B17/004 , G02B26/06 , G02B27/144 , G02B27/50 , H01S3/005
摘要： This invention relates to optical pulse waveform shaping technique intended to combine optical pulses with a low loss and to obtain an optical pulse waveform of an arbitrary intensity distribution by waveform shaping with a low loss. In the present invention, optical pulse waves branched by a beam splitter are caused to reenter the beam splitter with a phase difference between them and are combined with an unbranched optical pulse wave among the beams before branching. Furthermore, the phase difference described above can be variably adjusted. This invention can be utilized as connection means between a laser oscillator and an amplifier having mutually different exciting conditions.
摘要翻译：本发明涉及光脉冲波形整形技术，旨在组合具有低损耗的光脉冲，并通过低损耗的波形整形获得任意强度分布的光脉冲波形。在本发明中，使由分束器分支的光脉冲波以它们之间的相位差重新进入分束器，并且在分支之前与光束之间的未分支的光脉冲波组合。此外，可以可变地调节上述相位差。本发明可以用作激光振荡器和具有相互不同的激励条件的放大器之间的连接装置。

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