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1. 发明授权

US06630641B2 Electric discharge machining apparatus generating preliminary discharge and machining discharge pulses 失效
标题翻译：放电加工装置产生预备放电并加工放电脉冲
公开(公告)号：US06630641B2
公开(公告)日：2003-10-07
申请号：US09848344
申请日：2001-05-04
申请人： Taichiro Tamida , Takashi Hashimoto , Akihiro Suzuki , Akihiko Iwata , Atsushi Taneda
发明人： Taichiro Tamida , Takashi Hashimoto , Akihiro Suzuki , Akihiko Iwata , Atsushi Taneda
IPC分类号： B23H102
CPC分类号： B23H1/022 , B23H2300/20
摘要： An electric discharge machining apparatus includes a wire electrode for machining a workpiece, and a first voltage applying unit for applying a voltage pulse. The voltage pulse has a rise time longer than a discharge formative time lag when a rectangular voltage pulse is applied, when a distance between the workpiece and the wire is an average value in machining, and rises to the same voltage as the rectangular voltage pulse.
摘要翻译：放电加工装置包括用于加工工件的线电极和用于施加电压脉冲的第一施加电压单元。当施加矩形电压脉冲时，当工件和线之间的距离是加工中的平均值时，电压脉冲具有比放电形成时滞更长的上升时间，并且上升到与矩形电压脉冲相同的电压。

2. 发明授权

US06806434B1 Electric discharge machine with output power control 失效
标题翻译：放电机具有输出功率控制
公开(公告)号：US06806434B1
公开(公告)日：2004-10-19
申请号：US10296329
申请日：2002-11-22
申请人： Akihiro Suzuki , Akihiko Iwata , Takashi Hashimoto , Yoshikazu Tsunoda , Hideaki Hayashi , Atsushi Taneda
发明人： Akihiro Suzuki , Akihiko Iwata , Takashi Hashimoto , Yoshikazu Tsunoda , Hideaki Hayashi , Atsushi Taneda
IPC分类号： B23H102
CPC分类号： B23H1/022 , B23H2300/22
摘要： An electric discharge machine in which electric power for working is supplied between an electrode and workpiece by an electric power unit so as to generate electric discharge between the electrode and workpiece and conduct machining on the workpiece, the electric discharge machine having a voltage detector for detecting output voltage V of a DC electric power source of the electric power unit; a current detector for detecting output current I of the DC electric power source of the electric power unit; a calculator for calculating product V·I of V and I; and a controller for controlling output electric power of the electric power unit to be constant on the basis of a difference between a working command signal for giving a predetermined electric power command and V·I. Even when load impedance fluctuates, it is possible to suppress the fluctuation of electric discharge power, so that surface roughness on a machined face of the workpiece can be made uniform.
摘要翻译：一种放电机，其中通过电力单元在电极和工件之间供应用于工作的电力，以在电极和工件之间产生放电并对工件进行加工，该放电机具有用于检测的电压检测器电力单元的直流电源的输出电压V; 电流检测器，用于检测电力单元的直流电源的输出电流I; 用于计算V和I的乘积V.I的计算器; 以及控制器，用于基于用于给出预定电力指令的工作指令信号和V.I之间的差来控制电力单元的输出功率恒定。即使负载阻抗波动，也可以抑制放电功率的波动，能够使加工面上的表面粗糙度均匀。

3. 发明授权

US09550245B2 Electric discharge machining apparatus, electric discharge machining method, and semiconductor substrate manufacturing method 有权
标题翻译：放电加工装置，放电加工方法以及半导体基板的制造方法
公开(公告)号：US09550245B2
公开(公告)日：2017-01-24
申请号：US13002999
申请日：2009-07-23
申请人： Taichiro Tamida , Takashi Hashimoto , Akihiko Iwata , Tatsushi Sato
发明人： Taichiro Tamida , Takashi Hashimoto , Akihiko Iwata , Tatsushi Sato
IPC分类号： B23H1/02
CPC分类号： B23H1/028 , B23H1/022 , B23H2300/20
摘要： An electric discharge machining apparatus includes: electrodes the total quantity of which is equal to N; an alternating-current power source; and capacitors the total quantity of which is equal to N. The alternating-current power source applies an alternating voltage commonly to the electrodes. One end of each of the capacitors is connected to a corresponding one of the electrodes, whereas the other ends of the capacitors are commonly connected to the alternating-current power source.
摘要翻译：放电加工装置包括：其总量等于N的电极; 交流电源; 以及其总量等于N的电容器。交流电源向电极施加一个交流电压。每个电容器的一端连接到相应的一个电极，而电容器的另一端共同连接到交流电源。

4. 发明申请

US20110114604A1 ELECTRIC DISCHARGE MACHINING APPARATUS, ELECTRIC DISCHARGE MACHINING METHOD, AND SEMICONDUCTOR SUBSTRATE MANUFACTURING METHOD 有权
标题翻译：电动放料加工设备，放电加工方法和半导体基板制造方法
公开(公告)号：US20110114604A1
公开(公告)日：2011-05-19
申请号：US13002999
申请日：2009-07-23
申请人： Taichiro Tamida , Takashi Hashimoto , Akihiko Iwata , Tatsushi Sato
发明人： Taichiro Tamida , Takashi Hashimoto , Akihiko Iwata , Tatsushi Sato
IPC分类号： B23H1/02 , B23H1/00
CPC分类号： B23H1/028 , B23H1/022 , B23H2300/20
摘要： An electric discharge machining apparatus includes: electrodes the total quantity of which is equal to N; an alternating-current power source; and capacitors the total quantity of which is equal to N. The alternating-current power source applies an alternating voltage commonly to the electrodes. One end of each of the capacitors is connected to a corresponding one of the electrodes, whereas the other ends of the capacitors are commonly connected to the alternating-current power source.
摘要翻译：放电加工装置包括：其总量等于N的电极; 交流电源; 以及其总量等于N的电容器。交流电源向电极施加一个交流电压。每个电容器的一端连接到相应的一个电极，而电容器的另一端共同连接到交流电源。

5. 发明授权

US06580048B2 Electrical discharge machining apparatus supplying initial and processing currents 有权
标题翻译：提供初始和加工电流的放电加工设备
公开(公告)号：US06580048B2
公开(公告)日：2003-06-17
申请号：US09847359
申请日：2001-05-03
申请人： Takashi Hashimoto , Akihiro Suzuki , Taichirou Tamida , Akihiko Iwata , Yoshikazu Tsunoda , Hiroyuki Ooguro , Yoshikazu Ukai
发明人： Takashi Hashimoto , Akihiro Suzuki , Taichirou Tamida , Akihiko Iwata , Yoshikazu Tsunoda , Hiroyuki Ooguro , Yoshikazu Ukai
IPC分类号： B23H102
CPC分类号： B23H1/022 , B23H2300/20 , B23H2300/22
摘要： Charge accumulated in a capacitor is used to provide a processing current flow between a target and an electrode. When a diode is turned on, a first dc power supply is used to provide the processing current flow between the target and the electrode. In this state, after a lapse of a predetermined time, the current supply using the first dc power supply is stopped, and an induced electromotive voltage, induced by two floating reactors, is used to rapidly drop the processing current flowing between the target and the electrode, while charging the capacitor.
摘要翻译：电容器中累积的电荷用于提供目标和电极之间的处理电流。当二极管接通时，使用第一直流电源来提供目标和电极之间的处理电流。在这种状态下，在经过预定时间后，停止使用第一直流电源的电流供应，并且使用由两个浮动电抗器引起的感应电动势来迅速地降低在目标和电极，同时给电容充电。

6. 发明授权

US08735763B2 Power supply device for electrical discharge machine 有权
标题翻译：放电机电源装置
公开(公告)号：US08735763B2
公开(公告)日：2014-05-27
申请号：US13061719
申请日：2009-03-09
申请人： Takashi Hashimoto , Taichiro Tamida , Takayoshi Nagai
发明人： Takashi Hashimoto , Taichiro Tamida , Takayoshi Nagai
IPC分类号： B23H1/02
CPC分类号： B23H1/022 , B23H2300/20 , H02M7/537 , Y02B70/1441
摘要： A switching element operates to be turned on or off at a frequency in the order of megahertz. A reactor supplies a resonance current generated by resonance of the reactor with a floating capacitance between electrodes to between the electrodes. The resonance current does not flow in a direct-current power supply. By turning a capacitor and a floating inductance into a serial resonant state, the reactor ideally supplies the resonance current to between the electrodes without influence of the floating inductance. A high-frequency voltage asymmetric in positive and negative polarities is applied to between the electrodes and a current pulse can be made into a short pulse. Therefore, finish machining with high surface roughness can be performed.
摘要翻译：开关元件工作在频率为兆赫兹的频率下导通或截止。电抗器通过电抗器的谐振产生的谐振电流与电极之间的电极之间的浮动电容提供。谐振电流不会流入直流电源。通过将电容器和浮动电感转化为串联谐振状态，反应器理想地将谐振电流提供给电极之间，而不受浮动电感的影响。在电极之间施加正极性和负极性不对称的高频电压，并且可以将电流脉冲制成短脉冲。因此，可以进行表面粗糙度高的精加工。

7. 发明申请

US20110163071A1 POWER SUPPLY DEVICE FOR ELECTRICAL DISCHARGE MACHINE 有权
标题翻译：电力放电机电源装置
公开(公告)号：US20110163071A1
公开(公告)日：2011-07-07
申请号：US13061719
申请日：2009-03-09
申请人： Takashi Hashimoto , Taichiro Tamida , Takayoshi Nagai
发明人： Takashi Hashimoto , Taichiro Tamida , Takayoshi Nagai
IPC分类号： B23H1/02
CPC分类号： B23H1/022 , B23H2300/20 , H02M7/537 , Y02B70/1441
摘要： A switching element operates to be turned on or off at a frequency in the order of megahertz. A reactor supplies a resonance current generated by resonance of the reactor with a floating capacitance between electrodes to between the electrodes. The resonance current does not flow in a direct-current power supply. By turning a capacitor and a floating inductance into a serial resonant state, the reactor ideally supplies the resonance current to between the electrodes without influence of the floating inductance. A high-frequency voltage asymmetric in positive and negative polarities is applied to between the electrodes and a current pulse can be made into a short pulse. Therefore, finish machining with high surface roughness can be performed.
摘要翻译：开关元件工作在频率为兆赫兹的频率下导通或截止。电抗器通过电抗器的谐振产生的谐振电流与电极之间的电极之间的浮动电容提供。谐振电流不会流入直流电源。通过将电容器和浮动电感转化为串联谐振状态，反应器理想地将谐振电流提供给电极之间，而不受浮动电感的影响。在电极之间施加正极性和负极性不对称的高频电压，并且可以将电流脉冲制成短脉冲。因此，可以进行表面粗糙度高的精加工。

8. 发明授权

US06930273B2 Power supply unit for wire electrical discharge machining and method of wire electrical discharge machining 有权
标题翻译：电线放电加工用电源单元和电线放电加工方法
公开(公告)号：US06930273B2
公开(公告)日：2005-08-16
申请号：US10297385
申请日：2001-01-23
申请人： Toshio Nakashima , Kouichirou Hattori , Yoshikazu Ukai , Atsushi Taneda , Akihiro Goto , Takashi Hashimoto
发明人： Toshio Nakashima , Kouichirou Hattori , Yoshikazu Ukai , Atsushi Taneda , Akihiro Goto , Takashi Hashimoto
IPC分类号： B23H1/02 , B23H7/00 , B23H7/04 , C01F11/18 , C05D3/02 , C09C1/02 , B23H7/14
CPC分类号： B23H7/04 , B23H1/022
摘要： A power supply unit for wire electrical discharge machining using an ac high-frequency power supply for applying an ac high-frequency voltage between a wire electrode (1a) and a workpiece (2) includes a high-frequency oscillation and amplification circuit (4) and a pulse power supply (5) which is an ac-high-frequency-voltage intermittently supplying unit for effecting the application of the ac high-frequency voltage between the electrode and the workpiece and a pause thereof. In wire electrical discharge machining using this power supply unit for wire electrical discharge machining, it is possible to suppress the vibration of the wire electrode (1a) due tog the electrostatic force acting between the wire electrode (1a) and the workpiece (2), making it possible to improve the straightness accuracy of a machined surface of the workpiece (2) and make surface roughness small.
摘要翻译：使用用于在线电极（1a）和工件（2）之间施加交流高频电压的交流高频电源的放线加工用电源单元包括高频振荡放大电路（4）以及脉冲电源（5），其是用于在电极和工件之间施加交流高频电压及其暂停的交流高频电压间歇供电单元。在使用该电力供给单元进行电线放电加工的线放电加工中，能够抑制线电极（1a）与线电极（1a）和工件（2）之间的静电力的振动，使得可以提高工件（2）的加工表面的平直度精度，并使表面粗糙度小。

9. 发明申请

US20080110865A1 Wire Electric Discharge Machining Apparatus And Wire Electric Discharge Machining Method 有权
标题翻译：电线放电加工设备和电线放电加工方法
公开(公告)号：US20080110865A1
公开(公告)日：2008-05-15
申请号：US11665683
申请日：2006-04-05
申请人： Takashi Hashimoto , Tatsushi Satou , Akihiko Iwata , Yoshikazu Ukai , Yasuo Onodera
发明人： Takashi Hashimoto , Tatsushi Satou , Akihiko Iwata , Yoshikazu Ukai , Yasuo Onodera
IPC分类号： B23H1/00
CPC分类号： B23H7/04 , B23H1/022
摘要： A discharge-generation control unit applies at least a preliminary-discharge voltage pulse and a main-discharge voltage pulse between a wire electrode and a work. A discharge-position determining unit determines a discharge position from results of measurement by a plurality of current measuring units. A machining-energy adjusting unit adjusts machining energy generated by the main-discharge voltage pulse based on a discharge position determined before applying the main-discharge voltage pulse, and reflects a result of the adjustment on the generation of an electric discharge by feeding the result to the discharge-generation control unit.
摘要翻译：放电产生控制单元在线电极和工件之间至少施加预放电电压脉冲和主放电电压脉冲。放电位置确定单元通过多个电流测量单元从测量结果确定放电位置。加工能量调节单元基于在施加主放电电压脉冲之前确定的放电位置来调整由主放电电压脉冲产生的加工能量，并且通过馈送结果来反映对放电产生的调整结果到放电产生控制单元。

10. 发明授权

US07638726B2 Wire electric discharge machining apparatus and wire electric discharge machining method 有权
标题翻译：线放电加工装置及线放电加工方法
公开(公告)号：US07638726B2
公开(公告)日：2009-12-29
申请号：US11665683
申请日：2006-04-05
申请人： Takashi Hashimoto , Tatsushi Satou , Akihiko Iwata , Yoshikazu Ukai , Yasuo Onodera
发明人： Takashi Hashimoto , Tatsushi Satou , Akihiko Iwata , Yoshikazu Ukai , Yasuo Onodera
IPC分类号： B23H7/02 , B23H7/20
CPC分类号： B23H7/04 , B23H1/022
摘要： A discharge-generation control unit applies at least a preliminary-discharge voltage pulse and a main-discharge voltage pulse between a wire electrode and a work. A discharge-position determining unit determines a discharge position from results of measurement by a plurality of current measuring units. A machining-energy adjusting unit adjusts machining energy generated by the main-discharge voltage pulse based on a discharge position determined before applying the main-discharge voltage pulse, and reflects a result of the adjustment on the generation of an electric discharge by feeding the result to the discharge-generation control unit.
摘要翻译：放电产生控制单元在线电极和工件之间至少施加预放电电压脉冲和主放电电压脉冲。放电位置确定单元通过多个电流测量单元从测量结果确定放电位置。加工能量调节单元基于在施加主放电电压脉冲之前确定的放电位置来调整由主放电电压脉冲产生的加工能量，并且通过馈送结果来反映对放电产生的调整结果到放电产生控制单元。

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