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1. 发明授权

US5756956A Wire-cut electric discharge machining apparatus and control method therefor 失效
标题翻译：线切割放电加工装置及其控制方法
公开(公告)号：US5756956A
公开(公告)日：1998-05-26
申请号：US531076
申请日：1995-09-20
申请人： Seiji Sato , Hisashi Yamada , Takuji Magara , Yoshihito Imai , Tatsushi Sato
发明人： Seiji Sato , Hisashi Yamada , Takuji Magara , Yoshihito Imai , Tatsushi Sato
IPC分类号： B23H1/02 , B23H7/02 , B23H7/04
CPC分类号： B23H7/04
摘要： A wire-cut electric discharge machining apparatus and a control method for the wire-cut EDM apparatus. The amount of current pulses supplied to a machining gap can be measured precisely without a detection delay to thereby detect the occurrence of faulty machining such as wire electrode breakage and centralized arcs.
摘要翻译：一种线切割放电加工装置以及用于线切割EDM装置的控制方法。提供给加工间隙的电流脉冲量可以精确测量而没有检测延迟，从而检测线电极断裂和集中电弧等故障加工的发生。

2. 发明授权

US5422455A Electrical discharge machine with secondary electrode for corrosion prevention 失效
标题翻译：具有二次电极的放电机用于防腐蚀
公开(公告)号：US5422455A
公开(公告)日：1995-06-06
申请号：US13049
申请日：1993-02-04
申请人： Seiji Sato , Takuji Magara , Hisashi Yamada
发明人： Seiji Sato , Takuji Magara , Hisashi Yamada
IPC分类号： B23H1/00 , B23H1/02 , B23H7/04
CPC分类号： B23H7/04 , B23H1/022
摘要： An electric discharge machining apparatus of the travelling wire or sink type includes at least one secondary electrode which is immersed in the dielectric at least during machining. A microvoltage power supply is used to create a micropotential difference between the workpiece and the secondary electrode so that the workpiece becomes a negative pole. Maintaining this arrangement both during machining and non-machining times prevents the workpiece from being subjected to positive-pole oxidation.
摘要翻译：行走线或水槽式放电加工装置至少包括至少一个辅助电极，其至少在加工过程中浸入电介质中。使用微电压电源来产生工件和次级电极之间的微小差异，使得工件变为负极。在加工和非加工时间期间保持这种布置可以防止工件受到正极氧化。

3. 发明授权

US5233147A Wire-cut electric discharge machine 失效
标题翻译：电线切断电机
公开(公告)号：US5233147A
公开(公告)日：1993-08-03
申请号：US872369
申请日：1992-04-23
申请人： Takuji Magara
发明人： Takuji Magara
IPC分类号： B23H1/02 , B23H7/02 , B23H7/04
CPC分类号： B82Y15/00 , B23H7/04
摘要： The wire-cut electric discharge machine controls the mean voltage or mean current detected in the detection circuit in response to the variation of the feed rate of the workpiece. The electrostatic attractive force and discharge repulsive force act to the workpiece and make a balance. As a result, the arcuate shape distortion is canceled.

4. 发明授权

US5189276A Method and apparatus for treating the dielectric used in electrical discharge machining 失效
标题翻译：用于处理放电加工中使用的电介质的方法和装置
公开(公告)号：US5189276A
公开(公告)日：1993-02-23
申请号：US883615
申请日：1992-03-27
申请人： Takuji Magara
发明人： Takuji Magara
IPC分类号： B23H1/10
CPC分类号： B23H1/10
摘要： An electrical discharge machining (EDM) apparatus having one or more dielectric tanks, each having one or more compartments, connected to an EDMing tank by pipes, defining input and output dielectric paths and having selectively placed therein pumps and control valves. The tanks are used for containing dielectric during roughing and finishing operations. Filters are used in the paths for removal of particles suspended in the dielectric. A filter loop with input and output paths containing a bidirectional filter can be used to filter and store finishing powders from a finishing dielectric and to regenerate the finishing dielectric by backwashing the filter with clean dielectric to replace the powder in the dielectric. Various combinations of inputs, discharge and filter paths may be used with various designs of dielectric tanks, having one or more compartments, in order to meet particular operational requirements. The operation of valves and filters in the disclosed invention can occur automatically, in response to the output from various detectors, positioned to identify respective system parameters.
摘要翻译：一种放电加工（EDM）装置，其具有一个或多个介质罐，每个介质罐具有一个或多个隔室，通过管道连接到EDMing罐，限定了输入和输出电介质路径，并且选择性地放置在泵和控制阀中。在粗加工和精加工操作期间，这些罐用于容纳电介质。在用于去除悬浮在电介质中的颗粒的路径中使用过滤器。具有包含双向滤波器的输入和输出路径的滤波器回路可以用于从整理电介质过滤和存储整理粉末，并通过用干净的电介质反冲洗过滤器来再生整理电介质，以代替电介质中的粉末。输入，放电和滤波器路径的各种组合可以与具有一个或多个隔间的各种介质槽的设计一起使用，以满足特定的操作要求。所公开的发明中的阀和过滤器的操作可以响应于来自各种检测器的输出自动发生，其被定位成识别相应的系统参数。

5. 发明授权

US5118915A Electric discharge machine 失效
标题翻译：电动排料机
公开(公告)号：US5118915A
公开(公告)日：1992-06-02
申请号：US707552
申请日：1991-05-30
申请人： Takuji Magara
发明人： Takuji Magara
IPC分类号： B23H1/02 , B23H7/18
CPC分类号： B23H7/18
摘要： An electric discharge machine in which a machining gap or machining area is calculated from the rise time of a pulse voltage applied to the machining gap to stabilize and optimize the marching operation. An abnormal machining conditions such as an arc discharge can be positively detected and avoided. Further, the low surface roughness finish which is impossible to achieve in a large area machining operation can be accomplished.
摘要翻译：一种放电加工机，其特征在于，根据施加到所述加工间隙的脉冲电压的上升时间计算加工间隙或加工面积，以稳定和优化所述行进操作。可以肯定地检测和避免诸如电弧放电的异常加工条件。此外，可以实现在大面积加工操作中不可能实现的低表面粗糙度。

6. 发明授权

US5021622A Wire cut electrical discharge machine 失效
标题翻译：线切割放电机
公开(公告)号：US5021622A
公开(公告)日：1991-06-04
申请号：US224853
申请日：1988-08-17
申请人： Takuji Magara , Toshio Suzuki
发明人： Takuji Magara , Toshio Suzuki
IPC分类号： B23H7/06
CPC分类号： B23H7/065
摘要： A wire cut electrical discharge machine includes a control device which corrects a change in the electrode side gap due to a change in the amount of removal in accordance with information relating to the machining operation provided beforehand and information indicating a current machining position and a current machining condition, thereby to improve the machining accuracy at the corner portion of the workpiece.
摘要翻译： PCT No.PCT / JP87 / 00814 Sec。 371日期1988年8月17日 102（e）日期1988年8月17日PCT提交1987年10月23日PCT公布。公开号WO88 / 03071 日期：1988年5月5日。线切割放电机包括：控制装置，其根据与事先提供的加工操作有关的信息，校正由于去除量的变化引起的电极侧间隙的变化，以及指示电流加工位置和当前加工条件，从而提高在工件的拐角处的加工精度。

7. 发明授权

US5001321A Wire electrode supplying device for use in a wire cut electric discharge machining apparatus 失效
标题翻译：用于线切割放电加工装置的线电极供给装置
公开(公告)号：US5001321A
公开(公告)日：1991-03-19
申请号：US390846
申请日：1989-08-08
申请人： Takeshi Iwasaki , Takuji Magara , Toshio Suzuki , Masahiro Yamamoto
发明人： Takeshi Iwasaki , Takuji Magara , Toshio Suzuki , Masahiro Yamamoto
IPC分类号： B23H7/02 , B23H7/10
CPC分类号： B23H7/102
摘要： A detecting unit for detecting when the wire electrode is released from a jet stream of a machining solution during the feeding of the wire electrode. Upon detection of the release of the wire electrode, the feeding of the wire electrode is suspended automatically to remove the deformed wire electrode.
摘要翻译：一种检测单元，用于检测在线电极馈送期间线电极何时从加工溶液的喷射流中释放。当检测到线电极的释放时，线电极的馈送被自动悬挂以去除变形的线电极。

8. 发明申请

US20050127041A1 Electric power unit for machining of wire electric discharge machine 失效
标题翻译：电火花加工机组
公开(公告)号：US20050127041A1
公开(公告)日：2005-06-16
申请号：US10415749
申请日：2002-06-12
申请人： Hiroatsu Kobayashi , Takuji Magara
发明人： Hiroatsu Kobayashi , Takuji Magara
IPC分类号： B23H1/02 , B23H7/04
CPC分类号： B23H1/022 , B23H7/04
摘要： An electric power unit for machining of a wire electric discharge machine for machining a workpiece (W) in which an electric discharge inductive pulse voltage is impressed upon between electrodes of a wire electrode (E) and workpiece (W), after insulation between the electrodes has been broken by the pulse voltage and electric discharge has been induced, a pulse voltage for machining is impressed upon between the electrodes so as to conduct machining on the workpiece (W). The electric power unit for machining of a wire electric discharge machine includes an electric discharge state discriminating means (1a) for discriminating a state of electric discharge generated between the electrodes and an impression voltage selecting means (1b) for inverting the polarity of the electric discharge inductive pulse voltage from the previous electric discharge inductive pulse voltage when an electric discharge state between the electrodes is discriminated to be abnormal (Y1) or open (Y3) by the electric discharge state discriminating means (1a) and for making the polarity of the electric discharge inductive pulse voltage to be the same as the polarity of the previous electric discharge inductive pulse voltage when the electric discharge state between the electrodes is discriminated to be normal (Y2) by the electric discharge state discriminating means. Thus the machining efficiency is improved.
摘要翻译：一种用于加工电线放电机的电力单元，用于加工在电极（E）和工件（W）的电极之间施加放电感应脉冲电压的工件（W），在电极已经被脉冲电压破坏，并且已经感应出放电，用于加工的脉冲电压施加在电极之间，以便对工件（W）进行加工。用于加工电火花线切割机的电力单元包括用于鉴别电极之间产生的放电状态的放电状态判别装置（1a）和用于使电极的极性反转的压电电压选择装置（1b）当电极之间的放电状态被放电状态判别装置（1a）识别为异常（Y 1）或断开（Y 3）时，来自先前放电感应脉冲电压的放电感应脉冲电压，当通过放电状态判别装置将电极之间的放电状态判断为正常（Y 2）时，放电感应脉冲电压的极性与先前放电感应脉冲电压的极性相同。因此提高了加工效率。

9. 发明授权

US6086684A Electric discharge surface treating method and apparatus 失效
标题翻译：放电表面处理方法及装置
公开(公告)号：US6086684A
公开(公告)日：2000-07-11
申请号：US88658
申请日：1998-06-02
申请人： Nagao Saito , Naotake Mohri , Yoshiki Tsunekawa , Kohei Shimamoto , Akihiro Goto , Takuji Magara , Yoshihito Imai , Hidetaka Miyake
发明人： Nagao Saito , Naotake Mohri , Yoshiki Tsunekawa , Kohei Shimamoto , Akihiro Goto , Takuji Magara , Yoshihito Imai , Hidetaka Miyake
IPC分类号： C23C8/02 , C23C8/36 , C23C26/00 , C23C30/00 , C23C4/10 , C23C4/00 , C23C8/24 , C23C8/26
CPC分类号： C23C30/005 , C23C26/00 , C23C8/02 , C23C8/36
摘要： A surface treating is performed by an electric discharge. The electric discharge is generated by applying a voltage between an electrode and a metal workpiece. The electrode is a solid or green compact electrode or the like which is made of a reforming material. The workpiece may be an end mill or the like. Then, a coating layer is formed on a surface of the metal workpiece. Thereafter, a nitriding treatment is performed on the coating layer in a nitriding vessel or the like. Thus, a hard coating layer of better quality is formed on the surface of the workpiece whether a material of the workpiece is steel or hard metal.
摘要翻译：表面处理通过放电进行。通过在电极和金属工件之间施加电压来产生放电。电极是由重整材料制成的固体或绿色致密电极等。工件可以是立铣刀等。然后，在金属工件的表面上形成涂层。此后，在氮化容器等中的涂层上进行氮化处理。因此，无论工件的材料是钢还是硬金属，都在工件的表面上形成质量更好的硬涂层。

10. 发明授权

US5177334A Wire cut electric discharge machining apparatus 失效
标题翻译：电线切断电机加工设备
公开(公告)号：US5177334A
公开(公告)日：1993-01-05
申请号：US755225
申请日：1991-09-05
申请人： Takuji Magara , Yoshio Shibata , Masahiro Yamamoto , Kazuo Tsurumoto
发明人： Takuji Magara , Yoshio Shibata , Masahiro Yamamoto , Kazuo Tsurumoto
IPC分类号： B23H7/04 , B23H7/10
CPC分类号： B23H7/101 , B23H7/04
摘要： A wire cut electric discharge machining apparatus capable of machining a workpiece with a machining solution to produce a work having a desired shape. The work is magnetically attracted to be held and conveyed to a desired position by one of a pair of nozzles through which the machining solution is supplied to an interelectrode gap between the workpiece and a wire-shaped electrode. Since the attraction condition is controlled to be maintained unchanged, it is possible to move and convey the work and the like to the desired position with high accuracy and safety.
摘要翻译：一种线切割放电加工装置，其能够利用机械加工方法加工工件，以生产具有所需形状的工件。通过一对喷嘴将工件磁力吸引并保持并传送到期望的位置，通过该喷嘴将加工溶液提供给工件和线状电极之间的电极间间隙。由于吸引条件被控制为保持不变，可以以高精度和安全的方式将工件等移动并传送到期望的位置。

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