公开(公告)号：US5380975A

公开(公告)日：1995-01-10

申请号：US991643

申请日：1992-12-15

申请人： Tatsushi Sato ,  Yoshihito Imai

发明人： Tatsushi Sato ,  Yoshihito Imai

IPC分类号： B23H1/02

CPC分类号： B23H1/022 ,  B23H2300/20

摘要： An electric discharge machining apparatus of the type in which an electric power for electric discharge is accumulated in capacitors to perform electric discharge machining. To provide an electric discharge machining apparatus in which the manufacturing cost is relatively low, the machining speed is high, the machined surface is not damaged, and the electrode wear is low, a plurality of capacitors are connected in parallel with a machining gap which is formed by a machining electrode and workpiece that face each other. Charging resistors are provided in a charging circuit which is connected between a charging device for charging the capacitors and the capacitors. Switches are connected in series in a discharging circuit which is connected between the capacitors and the machining gap. A control device for controlling the on/off operation of the switches sequentially is provided to performing the electric discharge machining with high speed and high accuracy.

摘要翻译： 一种放电加工装置，其放电用电力蓄积在电容器中进行放电加工。 为了提供一种放电加工装置，其制造成本相对较低，加工速度高，加工表面不损坏，电极磨损低，多个电容器与加工间隙并联连接，加工间隙为 由彼此相对的加工电极和工件形成。 在连接在用于对电容器充电的充电装置和电容器之间的充电电路中提供充电电阻器。 开关串联连接在电容器和加工间隙之间的放电电路中。 提供用于顺序地控制开关的开/关动作的控制装置，以高速，高精度进行放电加工。

公开(公告)号：US20090212026A1

公开(公告)日：2009-08-27

申请号：US12093836

申请日：2005-11-16

申请人： Tatsushi Sato ,  Yoshihito Imai ,  Teiji Takahashi ,  Takeshi Sakata ,  Tomoko Sendai ,  Yoichiro Nishimoto ,  Shigeru Matsuno ,  Takeyuki Maegawa ,  Takaaki Iwata

发明人： Tatsushi Sato ,  Yoshihito Imai ,  Teiji Takahashi ,  Takeshi Sakata ,  Tomoko Sendai ,  Yoichiro Nishimoto ,  Shigeru Matsuno ,  Takeyuki Maegawa ,  Takaaki Iwata

IPC分类号： B23H1/00

CPC分类号： B23H7/02 ,  B23H9/00

摘要： Provided are a wire electric discharge machining method for poorly conductive materials, such as solar cell silicon, and a semiconductor wafer manufacturing method and a solar battery cell manufacturing method based on the wire electric discharge machining method. Electrical discharge machining of a high volume resistivity, hard and brittle materials, having a volume resistivity that is equal to or higher than 0.5 Ω·cm and equal to or lower than 5 Ω·cm is performed by applying a pulse voltage having a pulse width that is equal to or higher than 1 μsec and equal to or lower than 4 μsec and having a peak current at the time of machining a wire electrode that is equal to or higher than 10A and equal to or lower than 50A to a wire electrode and generating a discharge pulse between the wire electrode and a subject to be machined.

摘要翻译： 本发明提供一种导电材料的导电放电加工方法，例如太阳能电池硅，半导体晶片的制造方法以及基于该放电加工方法的太阳能电池单元的制造方法。 通过施加具有脉冲宽度的脉冲电压来执行体积电阻率等于或高于0.5Ω·cm且等于或小于5Ω·cm的高体积电阻率，硬脆性材料的放电加工 等于或高于1个音箱并且等于或低于4个音箱，并且在对线电极进行等于或高于10A且等于或小于50A的线电极加工时具有峰值电流，以及 在线电极和待加工对象之间产生放电脉冲。

公开(公告)号：US07557589B2

公开(公告)日：2009-07-07

申请号：US11554707

申请日：2006-10-31

申请人： Takaaki Iwata ,  Hiroyoshi Omura ,  Yoshihito Imai ,  Teiji Takahashi

发明人： Takaaki Iwata ,  Hiroyoshi Omura ,  Yoshihito Imai ,  Teiji Takahashi

IPC分类号： G01R27/26 ,  B23K9/06 ,  B23K9/00

CPC分类号： B23K26/04

摘要： A signal processing portion obtains the reciprocal of a composite impedance of gap static capacitance and a plasma impedance, obtains composite static capacitance which is the sum of the gap static capacitance and a static capacitance component included in the plasma impedance from an imaginary part of the reciprocal, and obtains a resistance component included in the plasma impedance from a real part of the reciprocal. A gap detection device obtains the static capacitance component by using a model representing the characteristics of the reciprocal of the plasma impedance and the resistance component and obtains the gap static capacitance by subtracting the static capacitance component from the composite static capacitance. The gap detection device obtains a gap from the obtained gap static capacitance. Thus provided is a technique to detect a gap between a nozzle of a laser beam machine for outputting a laser beam and an object to be machined with high accuracy.

摘要翻译： 信号处理部分获得间隙静态电容和等离子体阻抗的复合阻抗的倒数，获得复合静态电容，该复合静态电容是等离子体阻抗中包含的静态电容和静态电容之和的总和， 并且从该倒数的实部获得包括在等离子体阻抗中的电阻分量。 间隙检测装置通过使用表示等离子体阻抗和电阻分量的倒数的特性的模型来获得静态电容分量，并且通过从复合静态电容中减去静态电容分量来获得间隙静态电容。 间隙检测装置从获得的间隙静电电容获得间隙。 因此，提供了一种用于检测用于输出激光束的激光束机器的喷嘴与待加工物体之间的间隙的技术，其高精度。

公开(公告)号：US07537505B2

公开(公告)日：2009-05-26

申请号：US11086418

申请日：2005-03-23

申请人： Tetsuya Shiroishi ,  Akihiko Hosono ,  Shuhei Nakata ,  Yoshihito Imai ,  Takaaki Iwata

发明人： Tetsuya Shiroishi ,  Akihiko Hosono ,  Shuhei Nakata ,  Yoshihito Imai ,  Takaaki Iwata

IPC分类号： H01J9/12 ,  H01J1/62

CPC分类号： H01J9/025 ,  B82Y10/00 ,  H01J1/304 ,  H01J31/127 ,  H01J2201/30469

摘要： To provide a method of manufacturing a field emission display having an improved electron emission effect by means of laser irradiation and accordingly mitigating a luminance fluctuation among pixels, and other such techniques. Provided is a method of manufacturing a field emission display which includes a cathode substrate and a fluorescent screen glass opposed to the cathode substrate and emits light when an electron emitted from a carbon nanotube printed layer (7) containing a carbon nanotube of the cathode electrode enters a fluorescent material of the fluorescent screen glass, the method including a laser beam irradiation step of irradiating a surface of the carbon nanotube printed layer (7) with a laser beam having its energy density to be spatially modulated to expose and raise the carbon nanotube of the carbon nanotube printed layer so as to form a laser irradiation part (B) and a non-laser irradiation part (C).

摘要翻译： 提供一种通过激光照射制造具有改善的电子发射效果的场致发射显示器的方法，并且相应地减轻像素之间的亮度波动以及其他这样的技术。 提供一种制造场发射显示器的方法，其包括阴极基板和与阴极基板相对的荧光屏玻璃，并且当从包含阴极电极的碳纳米管的碳纳米管印刷层（7）发射的电子进入时发射光 荧光屏玻璃的荧光材料，该方法包括：激光束照射步骤，用具有其空间调制能量密度的激光束照射碳纳米管印刷层（7）的表面，以使碳纳米管的碳纳米管 碳纳米管印刷层，以形成激光照射部分（B）和非激光照射部分（C）。

公开(公告)号：US06788019B2

公开(公告)日：2004-09-07

申请号：US10130472

申请日：2002-05-20

申请人： Yoshihito Imai ,  Hidetaka Miyake ,  Takayuki Nakagawa

发明人： Yoshihito Imai ,  Hidetaka Miyake ,  Takayuki Nakagawa

IPC分类号： G05B1925

CPC分类号： B23H7/32 ,  B23H7/26 ,  B23H7/28 ,  B23H7/30 ,  B23H2400/10

摘要： An electric discharge machining apparatus is provided with an electrode mounting section which mounts a tool electrode, and an electrode driving section which has a radial driving section which supports and drives the electrode mounting section in a non-contact manner in a radial direction and a thrust driving section which supports and drives the electrode mounting section in a non-contact manner in a thrust direction, and a machining state is controlled by adjusting a position of the tool electrode by the electrode driving section. Because of such a structure, a mass increase of a section which should be driven together with the electrode is restricted, and high response in X-axis, Y-axis and Z-axis directions are achieved, whereby an electric discharge machining apparatus capable of improving a machining speed and a machining accuracy is achieved.

摘要翻译： 放电加工装置设置有安装工具电极的电极安装部和电极驱动部，该电极驱动部具有径向驱动部，该径向驱动部以径向非接触的方式支撑并驱动电极安装部，推力 驱动部，其在推力方向上以非接触方式支撑并驱动电极安装部，并且通过由电极驱动部调节工具电极的位置来控制加工状态。 由于这样的结构，与电极一起驱动的部分的质量增加受到限制，并且实现了在X轴，Y轴和Z轴方向上的高响应性，从而可以实现能够 提高加工速度和加工精度。

公开(公告)号：US06614234B1

公开(公告)日：2003-09-02

申请号：US09653345

申请日：2000-08-31

申请人： Yoshihito Imai ,  Hidetaka Miyake ,  Takuji Magara ,  Akihiro Goto

发明人： Yoshihito Imai ,  Hidetaka Miyake ,  Takuji Magara ,  Akihiro Goto

IPC分类号： G01N2760

CPC分类号： B23H7/18

摘要： An electric discharge machine for machining a workpiece by an electric discharge by supplying a machining fluid to a gap between an electrode and the workpiece and supplying pulses to the workpiece while providing the electrode with a jump motion, the jump motion being a periodic motion of the electrode relative to the workpiece; wherein the electric discharge machine detects a state quantity caused in a main body of the electric discharge machine by a reactive force produced by a machining operation in the gap between the electrode and the workpiece and changes machining conditions of the workpiece in accordance with a detected value of the state quantity.

摘要翻译： 一种放电机，用于通过向电极和工件之间的间隙提供加工流体，通过放电来加工工件，并且在向电极提供跳跃运动的同时向工件提供脉冲，跳跃运动是周期性运动 电极相对于工件; 其特征在于，所述放电加工机通过在所述电极和所述工件之间的间隙中的加工操作产生的反作用力来检测在所述放电加工机的主体中产生的状态量，并根据检测值改变所述工件的加工条件 的国家数量。

公开(公告)号：US06385501B1

公开(公告)日：2002-05-07

申请号：US09423388

申请日：1999-11-08

申请人： Yoshihito Imai ,  Takayuki Nakagawa ,  Takashi Yuzawa

发明人： Yoshihito Imai ,  Takayuki Nakagawa ,  Takashi Yuzawa

IPC分类号： G06F1900

CPC分类号： B23H7/18 ,  B23H7/20

摘要： An error signal is obtained from a reference value and a value indicating a detected state in machining, a first controlled variable is obtained by adding a value obtained by multiplying the error signal by a proportion gain to a value obtained by multiplying the error signal by a first integration gain, a second controlled variable is obtained by multiplying an instruction value by a second integration gain for integration, and a value obtained by adding the first controlled variable to the second controlled variable and multiplying the sum by a machining trajectory vector is used as a controlled variable for a driving unit for adjusting a distance between an electrode and a workpiece in discharge machining. Therefore, it is possible to realize a discharge machining control method and apparatus in which the machining speed can be improved by always maintaining the discharge machining process in an optimal state.

摘要翻译： 从参考值和表示加工中的检测状态的值获得误差信号，通过将通过将误差信号乘以比例增益而获得的值与通过将误差信号相乘而获得的值相加来获得第一受控变量 第一积分增益，通过将指令值乘以用于积分的第二积分增益来获得第二受控变量，并将通过将第一受控变量加到第二受控变量并将和乘以加工轨迹矢量而获得的值用作 用于在放电加工中用于调节电极和工件之间的距离的驱动单元的受控变量。 因此，可以实现通过始终将放电加工处理保持在最佳状态来提高加工速度的放电加工控制方法和装置。

公开(公告)号：US5919380A

公开(公告)日：1999-07-06

申请号：US606978

申请日：1996-02-26

申请人： Takuji Magara ,  Akihiro Goto ,  Yoshihito Imai ,  Tomoko Sendai ,  Tatsushi Sato ,  Hidetaka Miyake

发明人： Takuji Magara ,  Akihiro Goto ,  Yoshihito Imai ,  Tomoko Sendai ,  Tatsushi Sato ,  Hidetaka Miyake

IPC分类号： B23H1/04 ,  B23H7/06 ,  B23H7/20 ,  B23H7/26 ,  B23H7/30 ,  B23H1/00 ,  B23H7/28

CPC分类号： B23H7/065 ,  B23H7/20 ,  B23H7/30 ,  B23H2400/10

摘要： To obtain high machining speed and machining accuracy in three-dimensional machining by using of an electrode of simple shape. Applying voltage between an electrode of simple shape and a workpiece, performing three-dimensional control by an NC control while synthesizing a feed of a Z-axis direction for correcting longitudinal consumed amount of an electrode with an X-Y plane feed, storing amount equivalent to an X-Y moving distance in an X-Y plane corresponding to correcting moving amount of the Z-axis direction in an electrical discharge machining method for machining a desired three-dimensional shape and performing a feed of correcting moving amount in the Z-axis direction each time a moving distance in the X-Y plane on a moving locus during machining reaches the above stored amount.

摘要翻译： 通过使用简单形状的电极在三维加工中获得高加工速度和加工精度。 在简单形状的电极和工件之间施加电压，在通过XY平面进给合成用于校正电极的纵向消耗量的Z轴方向的进给的同时，通过NC控制进行三维控制，相当于 在用于加工所需三维形状的放电加工方法中对应于校正Z轴方向的移动量的XY平面中的XY移动距离，并且每次移动时执行Z轴方向上的校正移动量的馈送 加工过程中移动轨迹上的XY平面上的距离达到上述存储量。

公开(公告)号：US5837957A

公开(公告)日：1998-11-17

申请号：US807866

申请日：1997-02-26

申请人： Tatsushi Sato ,  Yoshihito Imai ,  Tomoko Sendai ,  Hidetaka Miyake ,  Takashi Yuzawa ,  Takuji Magara

发明人： Tatsushi Sato ,  Yoshihito Imai ,  Tomoko Sendai ,  Hidetaka Miyake ,  Takashi Yuzawa ,  Takuji Magara

IPC分类号： B23H1/04 ,  B23H1/06 ,  C04B35/52

CPC分类号： B23H1/04 ,  B23H1/06

摘要： An electric discharge machining apparatus in which at least either of a tool electrode or a workpiece is made of an anisotropic conductive material, includes, on a good conductive surface 20b of the anisotropic conductive material 2, a portion for connecting an isotropic conductive member 22. Electric discharge is generated on the good conductive surface 20b of the anisotropic conductive material 2. A conductive adhesive agent 23 is employed to bond the anisotropic conductive material 2 and the isotropic conductive member 22 to each other. The anisotropic conductive material is a pyrocarbon material. The pyrocarbon heat resolved carbon material is employed as a tool electrode material. Incombustible dielectric fluid, such as pure water, is employed as dielectric fluid. Moreover, there are provided apparatus for measuring voltage during electric discharge, apparatus for setting a threshold value for use to determine whether the electric discharge is normal electric discharge or abnormal electric discharge and apparatus for interrupting supply of a discharge current in a case where the measured discharge voltage is higher than the threshold value.

摘要翻译： 一种放电加工装置，其中工具电极或工件中的至少一个由各向异性导电材料制成，在各向异性导电材料2的良导电表面20b上包括用于连接各向同性导电部件22的部分。 在各向异性导电材料2的良好导电表面20b上产生放电。使用导电粘合剂23将各向异性导电材料2和各向同性导电构件22彼此接合。 各向异性导电材料是热解碳材料。 热解碳碳材料用作工具电极材料。 不可燃介质流体，例如纯水，被用作介电流体。 此外，还提供了用于在放电期间测量电压的装置，用于设定用于确定放电是正常放电还是异常放电的阈值的装置以及在所测量的情况下中断放电电流的供应的装置 放电电压高于阈值。

公开(公告)号：US5496984A

公开(公告)日：1996-03-05

申请号：US998840

申请日：1992-12-30

申请人： Akihiro Goto ,  Yoshio Ozaki ,  Atsushi Taneda ,  Tatsushi Sato ,  Yoshihito Imai

发明人： Akihiro Goto ,  Yoshio Ozaki ,  Atsushi Taneda ,  Tatsushi Sato ,  Yoshihito Imai

IPC分类号： B23H1/02 ,  B23H7/16

CPC分类号： B23H1/024 ,  B23H7/16

摘要： A method and apparatus for detecting and controlling the operation of an electric discharge machine for machining a workpiece. The machining is conducted by generating pulse discharges at a machining gap formed by a machining electrode and the workpiece opposed to each other. The alternating-current components or high frequency components of at least one of the current, voltage and impedance of the machining gap, the rectified components thereof, or amplitude, frequency or other signal characteristics thereof are detected and processed for control of the machining. The processing may include frequency analysis, pulse counting, threshold detection and the like using analog and digital processing.

摘要翻译： 一种用于检测和控制用于加工工件的放电加工机的操作的方法和装置。 通过在由加工电极和相对的工件形成的加工间隙产生脉冲放电来进行加工。 检测并处理加工间隙的电流，电压和阻抗，其整流分量或其振幅，频率或其它信号特性中的至少一个的交流分量或高频分量，以进行加工的控制。 该处理可以包括使用模拟和数字处理的频率分析，脉冲计数，阈值检测等。