Power supply unit for wire electrical discharge machining and method of wire electrical discharge machining
    32.
    发明授权
    Power supply unit for wire electrical discharge machining and method of wire electrical discharge machining 有权
    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

    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。

    Method and apparatus for surface discharge processing, and an electrode for surface discharge processing
    33.
    发明申请
    Method and apparatus for surface discharge processing, and an electrode for surface discharge processing 审中-公开
    用于表面放电处理的方法和装置,以及用于表面放电处理的电极

    公开(公告)号:US20050035088A1

    公开(公告)日:2005-02-17

    申请号:US09763194

    申请日:2001-02-20

    摘要: A surface discharge processing apparatus generates an electric discharge between an electrode and a workpiece (1) thereby forming a surface reforming layer on the surface of the workpiece. The apparatus comprises a wire electrode (2) for surface discharge processing used as the surface discharge processing electrode, and a wire electrode feeder composed of a feed reel (3) for feeding this wire electrode (2) for surface discharge processing to the workpiece (1), and a takeup reel (4) in additional to the conventional components. The wire electrode (2) is composed of a core wire (2a) made of ductile material, and a surface discharge processing material (2b) made of a surface reforming material adhered to this core wire or a raw material for the surface reforming material.

    摘要翻译: 表面放电处理装置在电极和工件(1)之间产生放电,从而在工件的表面上形成表面改性层。 该装置包括用作表面放电处理电极的用于表面放电处理的线电极(2)和由用于将该线电极(2)供给到工件的表面放电处理的馈电线轴(3) 1)以及卷绕卷轴(4)。 线电极(2)由延性材料制的芯线(2a)和粘附在该芯线上的表面改性材料或表面改性材料的原料构成的表面放电处理材料(2b)构成。

    Method and apparatus for electrodischarge wire machining
    34.
    发明授权
    Method and apparatus for electrodischarge wire machining 失效
    放电电线加工方法及装置

    公开(公告)号:US06744002B1

    公开(公告)日:2004-06-01

    申请号:US10181210

    申请日:2002-07-15

    申请人: Akihiro Goto

    发明人: Akihiro Goto

    IPC分类号: B23H702

    摘要: In wire electric discharge machining in which electric discharge energy is supplied between a wire electrode (1a) and a workpiece (2) by a machining electric power supply means (16) so as to machine the workpiece (2) when the wire electrode (1a) and the workpiece (2) are relatively traveled with each other by a positioning means, there are provided a first process in which rough machining is conducted in a working solution (4a) and a second process in which finish-machining is conducted in gas (7) such as air, oxygen, nitrogen or inert gas, and the positioning means is controlled by a control means (17) so that a relative traveling speed of the wire electrode (1a) with the workpiece (2) in the second process can be set at a constant rate not lower than a predetermined rate at which a short circuit can not continue between the electrodes for a predetermined period of time and more which has been previously set according to a required specification. It is possible to realize a high accuracy and quality of wire electric discharge machining and also it is possible to realize an enhancement of productivity.

    摘要翻译: 在电线放电加工中,其中通过加工电源装置(16)在线电极(1a)和工件(2)之间提供放电能量,以便当线电极(1a)加工工件 )和工件(2)通过定位装置相对移动,提供了在工作溶液(4a)中进行粗加工的第一工序和在气体中进行精加工的第二工序 (7),诸如空气,氧气,氮气或惰性气体,并且定位装置由控制装置(17)控制,使得在第二过程中线电极(1a)与工件(2)的相对行进速度 可以以不低于电极之间的短路不能持续预定时间段的预定速率的恒定速率设定,并且根据所需规格预先设定的预定速率。 可以实现电火花线切割加工的高精度和高质量,并且可以实现生产率的提高。

    Scanning device and scanning method
    35.
    发明授权
    Scanning device and scanning method 有权
    扫描装置和扫描方法

    公开(公告)号:US06670602B1

    公开(公告)日:2003-12-30

    申请号:US09324896

    申请日:1999-06-03

    IPC分类号: H01J314

    CPC分类号: H01J37/28 H01J2237/2817

    摘要: New and improved scanning device and corresponding method that include and involve a movable stage on which a specimen is positioned, irradiation means which irradiates an electron beam onto an irradiation region of the specimen, secondary beam detection means used in generating a picture of the irradiation region by detecting a secondary beam which consists of at least one of secondary electrons or reflected electrons from the irradiation region of the electron beam, an imaging electron optical system which causes imaging of the secondary beam on a detection surface of the secondary beam detection means, and which is arranged between the specimen and the secondary beam detection means. The secondary beam detection means is equipped with a fluorescent unit which is arranged on the detection surface, and which converts the secondary beam into light, and one-dimensional line sensors which have a structure arrayed in two dimensions forming electric charge by photoelectric conversion, an array imaging element which continuously adds up the electric charge of the accumulated image in a predetermined line of the line sensors, and the electric charge of the line of the image which moves accompanying the movement of the stage, and a two-dimensional imaging element which emits electric charge by means of photoelectric conversion. The scanning device and corresponding method further include and involve changeover means for selectively irradiating the light converted by means of the fluorescent unit to an imaging element which is either one of the array imaging elements and the two-dimensional imaging element.

    摘要翻译: 新的改进的扫描装置及其相应的方法,其包括并涉及其上放置试样的可移动台,将电子束照射到试样的照射区域上的照射装置,用于产生照射区域的图像的二次束检测装置 通过检测由来自电子束的照射区域的二次电子或反射电子中的至少一种构成的次级光束,使次光束在二次光束检测装置的检测表面上成像的成像电子光学系统,以及 其布置在样本和次级束检​​测装置之间。 二次光束检测装置配备有布置在检测表面上并将次光束转换为光的荧光单元和具有通过光电转换形成电荷的二维排列的结构的一维线传感器, 阵列成像元件,其连续地将累积图像的电荷累积在行传感器的预定线中,以及伴随舞台移动移动的图像线的电荷,以及二维成像元件 通过光电转换发射电荷。 扫描装置和相应的方法还包括并包括切换装置,用于选择性地将通过荧光单元转换的光照射到作为阵列成像元件和二维成像元件之一的成像元件。

    Electrical discharge machine with an opposite polarity voltage applied
during an electrode jump operation
    37.
    发明授权
    Electrical discharge machine with an opposite polarity voltage applied during an electrode jump operation 失效
    在电极跳跃操作期间施加相反极性电压的放电机

    公开(公告)号:US5603852A

    公开(公告)日:1997-02-18

    申请号:US534310

    申请日:1995-09-27

    IPC分类号: B23H1/02 B23H7/16 B23H11/00

    摘要: A machining pulse control apparatus applies a first polarity pulse voltage during a machining operation and a second opposite polarity voltage in a machining stop period in which the electrode is moved away from and toward the workpiece during a jump operation. Preferably, the second opposite polarity is applied for a period of time sufficient to maintain the voltage across the machining gap at zero voltage. The amount of direct current voltage applied during the jump operation is adaptively controlled.

    摘要翻译: 加工脉冲控制装置在加工操作期间施加第一极性脉冲电压,在加工停止期间施加第二极性电压,其中在跳跃操作期间电极远离工件并朝向工件移动。 优选地,将第二相反极性施加足以将加工间隙两端的电压维持在零电压的时间段。 在跳跃操作期间施加的直流电压的量被自适应地控制。

    DISCHARGE SURFACE TREATMENT APPARATUS AND DISCHARGE SURFACE TREATMENT METHOD
    40.
    发明申请
    DISCHARGE SURFACE TREATMENT APPARATUS AND DISCHARGE SURFACE TREATMENT METHOD 有权
    放电表面处理装置和放电表面处理方法

    公开(公告)号:US20130344651A1

    公开(公告)日:2013-12-26

    申请号:US13820909

    申请日:2012-06-26

    IPC分类号: H01L21/02

    摘要: A discharge surface treatment apparatus supplies an electrode material to a surface of a treatment target member by generating pulsating discharges across an inter-electrode gap to form a coating of the electrode material, and includes a switching element that turns application of a voltage from a power source to the inter-electrode gap on/off, a capacitance element that is connected to the switching element in parallel with the inter-electrode gap, an inductance element that is connected in series between both of the switching element and the capacitance element and the inter-electrode gap, and a control unit that includes a function of periodically performing on/off so that an induced electromotive force generated in the inductance element due to a change in the current of discharge generated across the inter-electrode gap can be used as a voltage that induces the next discharge

    摘要翻译: 放电表面处理装置通过产生跨电极间隙的脉动放电而将电极材料供给到处理对象部件的表面,形成电极材料的涂层,并且包括切换元件,其将来自电力的电压 源极与电极间间隔开通/断开,与开关元件并联连接到电极间间隔的电容元件,串联连接在开关元件和电容元件之间的电感元件和 电极间间隙的控制单元,以及具有周期性地进行开/关的功能的控制单元,使得由于跨越电极间间隙产生的放电电流的变化而在电感元件中产生的感应电动势可以用作 导致下次放电的电压