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1. 发明授权

US4323749A Process and apparatus for machining by electrical discharges along a slant axis 失效
标题翻译：沿倾斜轴线放电加工的工艺和设备
公开(公告)号：US4323749A
公开(公告)日：1982-04-06
申请号：US189798
申请日：1980-09-22
申请人： Michel P. Mazond , Alain Wavre
发明人： Michel P. Mazond , Alain Wavre
IPC分类号： B23H7/28 , B23P1/12
CPC分类号： B23H7/28
摘要： The present invention is a process and apparatus for machining an electrode workpiece by electrical discharges, wherein the electrode workpiece and an electrode tool are displaced relative to each other at least in one slant direction disposed at a predetermined angle with the principal axis of feed of one electrode relative to the other, the machining gap between the electrodes is set at a finite value such as to maintain predetermined machining conditions, consecutive machining passes are effected and, at the end of each machining pass, the slant direction of feed is displaced as soon as the amplitude of relative displacement between the electrodes reaches a predetermined limit value, and such limit value is changed from one pass to the next. For the purpose of removing material from the workpiece to an equal depth on all the surfaces of the workpiece in the course of a finish machining pass, the electrodes are displaced relative to each other in slanted directions which are modified as soon as the amplitude of displacement reaches a predetermined limit value whose envelope is a hemisphere. As a result of effecting such consecutive relative displacements of the electrodes in a specific predetermined sequence while maintaining the density of the machining current at an optimum value, the total duration of the finish machining operation is considerably reduced as compared to the prior art.
摘要翻译：本发明是一种用于通过放电来加工电极工件的方法和装置，其中电极工件和电极工具相对于彼此移位，至少在一个倾斜方向上，该倾斜方向以与一个电极之间的加工间隙被设定为有限的值，以保持预定的加工条件，进行连续的加工通过，并且在每个加工通过结束时，进给的倾斜方向尽快移位因为电极之间的相对位移的幅度达到预定的极限值，并且这种极限值从一个通道改变到下一个通路。为了在精加工过程中将材料从工件移除到工件的所有表面上相同的深度，电极在倾斜方向上相对于彼此移位，一旦位移幅度变化就被修改达到一个预定的限制值，其封套是一个半球。由于以特定的预定顺序实现电极的这种连续的相对位移，同时将加工电流的密度保持在最佳值，与现有技术相比，精加工操作的总持续时间显着降低。

2. 发明授权

US4661678A EDM apparatus provided with means for holding a portion cut off from the workpiece 失效
标题翻译： EDM装置设置有用于保持从工件切出的部分的装置
公开(公告)号：US4661678A
公开(公告)日：1987-04-28
申请号：US724526
申请日：1985-04-18
申请人： Alain Wavre
发明人： Alain Wavre
IPC分类号： B23D57/00 , B23D59/00 , B23H7/02 , B23H7/06 , B23Q1/04
CPC分类号： B23H7/06 , B23D57/0046 , B23D59/005
摘要： In a travelling wire EDM apparatus for effecting a cut by electrical discharges on a workpiece blank by an electrode wire, the workpiece blank is supported by two support members mounted on a rotary table, one support member being disposed in the interior of the perimeter of the cutting path and the other support member being disposed exteriorly to the perimeter of the cutting path such as to support the two portions of the workpiece blank severed from each other during the cutting operation. A partial cut is first effected through the workpiece blank and the workpiece blank is subsequently angularly oriented to a different position by rotating the rotary table such that collision between any one of the electrode wire support arms and the workpiece blank support member disposed within the perimeter of the cutting path is prevented. The cut is continued along a cutting path corrected as a function of the new angular position of the workpiece, and at the end of the cut the portion severed from the workpiece blank is supported by the support member disposed within the perimeter of the cutting path and the remaining of the workpiece blank is supported by the other support member.
摘要翻译：在用于通过电极线对工件坯料上的放电进行切割的行进电线EDM装置中，工件坯料由安装在旋转台上的两个支撑构件支撑，一个支撑构件设置在旋转台的周边的内部切割路径，另一个支撑构件设置在切割路径的周边的外部，以便在切割操作期间支撑工件坯料的彼此分离的两个部分。首先通过工件坯件实现部分切割，然后通过旋转旋转工作台将工件坯料成角度地定向到不同的位置，使得任何一个电极丝支撑臂和工件坯件支撑构件之间的碰撞设置在切断路径被阻止。切割沿着作为工件的新的角度位置校正的切割路径继续，并且在切割结束处，从工件坯料切断的部分由设置在切割路径的周边内的支撑构件支撑，工件坯料的剩余部分由另一个支撑构件支撑。

3. 发明授权

US4247749A Electrical discharge machining apparatus and process with controlled variable speed electrode orbiting 失效
标题翻译：放电加工设备及控制变速电极绕线过程
公开(公告)号：US4247749A
公开(公告)日：1981-01-27
申请号：US14292
申请日：1979-02-23
申请人： Alain Wavre
发明人： Alain Wavre
IPC分类号： B23H7/28 , B23P1/12
CPC分类号： B23H7/28
摘要： A process and apparatus for an EDM machine provided with an overcut drive mechanism for orbiting the electrode tool relative to the electrode workpiece in a cyclical motion, comprising a control for the orbital mechanism which varies the velocity of the cyclical orbital motion as a function of the difference between the orbital path actually obtained and a reference orbital path, such as to simultaneously provide a control of the workpiece shape and maintain the machining gap and, therefore, the machining current substantially constant.
摘要翻译：一种用于EDM机器的工艺和设备，其设置有用于以循环运动相对于电极工件绕动电极工具的过度切割驱动机构，包括用于轨道机构的控制，该控制机构改变循环轨道运动的速度作为实际获得的轨道之间的差异与参考轨道路径之间的差异，例如同时提供对工件形状的控制并保持加工间隙，因此加工电流基本恒定。

4. 发明授权

US4150275A Apparatus for controlling the relative motion of the electrodes in electrical discharge machining 失效
标题翻译：用于控制电极在放电加工中的相对运动的装置
公开(公告)号：US4150275A
公开(公告)日：1979-04-17
申请号：US837767
申请日：1977-09-29
申请人： Alain Wavre
发明人： Alain Wavre
IPC分类号： B23H7/06 , B23H7/28 , B23P1/08
CPC分类号： B23H7/28
摘要： A control system, in an EDM machine, for simultaneously displacing the electrode tool and the electrode workpiece relative to each other along both an axis of penetration of the electrode tool into the workpiece and a translation motion in a plane perpendicular to the axis of penetration of the electrode tool into the workpiece. The control system consists of logic circuitry providing a variable signal obtained by integrating as a function of time the difference between a signal representative of the machining condition and a reference signal, apportioning the variable signal between a first and a second electrical signal and interrelating the apportionment with a control of the relative position of the electrodes along the axis of penetration and of the eccentricity of the relative translation movement, respectively, as a function of the first electrical signal and of the second electrical signal.
摘要翻译：一种在EDM机器中的控制系统，用于将电极工具和电极工件相对于彼此沿着电极工具的穿透轴线移动到工件中并且在垂直于穿透轴线的平面中的平移运动电极工具进入工件。控制系统由逻辑电路组成，提供可变信号，该可变信号通过将表示加工条件的信号与参考信号之间的差作为时间的函数进行积分而获得，在第一和第二电信号之间分配可变信号，并且将分配分别根据第一电信号和第二电信号来控制电极沿着穿透轴线的相对位置和相对平移运动的偏心度的相对位置。

5. 发明授权

US4298782A Method and apparatus for straightening the wire electrode of an electrical discharge machining apparatus 失效
标题翻译：用于矫直放电加工装置的线电极的方法和装置
公开(公告)号：US4298782A
公开(公告)日：1981-11-03
申请号：US40673
申请日：1979-05-21
申请人： Alain Wavre
发明人： Alain Wavre
IPC分类号： B23H7/02 , B23H7/06 , B23H7/10 , B23P1/02
CPC分类号： B23H7/065 , B23H7/10 , B23H7/104
摘要： An EDM method and apparatus for cutting a workpiece by a wire electrode in the form of a metallic tape or wire, in which the traction exerted on the wire electrode by the mechanism feeding the wire electrode in the machining zone between the wire electrode and the workpiece is modified momentarily, and the variation of machining rate caused by the momentary modification of the force of traction exerted on the wire electrode is detected. The direction in which the machining rate is changed provides an indication of the effect, on the wire electrode, of the transverse forces which deflect the wire in the machining zone, relative to its longitudinal axis. The direction in which the machining rate varies is used to select the direction in which a predetermined machining parameter affecting the transverse forces applied on the wire electrode is changed, such as to maintain the wire electrode properly aligned along its longitudinal axis.
摘要翻译：一种用于通过金属带或线材的线电极切割工件的EDM方法和装置，其中通过在线电极和工件之间的加工区域中馈送线电极的机构施加在线电极上的牵引力被瞬时修改，并且检测由施加在线电极上的牵引力的瞬时修改引起的加工速率的变化。加工速度改变的方向提供了在线电极上相对于其纵向轴线使加工区域中的线偏转的横向力的作用的指示。使用加工速度变化的方向来选择影响施加在线电极上的横向力的预定加工参数改变的方向，例如使线电极沿其纵向轴线正确对准。

6. 发明授权

US4135070A EDM apparatus and process with control for variable eccentric overcutting 失效
标题翻译： EDM装置和控制方法，用于可变偏心重叠
公开(公告)号：US4135070A
公开(公告)日：1979-01-16
申请号：US787850
申请日：1977-04-15
申请人： Jean Pfau , Alain Wavre , Rudolf Schneider
发明人： Jean Pfau , Alain Wavre , Rudolf Schneider
IPC分类号： B23H7/06 , B23H7/28 , B23P1/08
CPC分类号： B23H7/28
摘要： The present invention is an EDM (Electrical discharge machining) process and apparatus for machining an electrode workpiece by means of an electrode tool wherein the electrodes are displaced relative to each other along a principal feed axis while, simultaneously, the electrodes are displaced relative to each other along an orbital path in a plane perpendicular to the principal feed axis, such as to produce between the electrodes a three-dimensional translation motion, and for providing between the electrodes an average machining gap wider than the gap width sustaining electrical discharges. The invention provides a control of the amplitude of the relative translation motion of the electrodes while displacing the direction of said motion as soon as a predetermined orbiting path limit is reached such as to allow a rapid increase of the gap between the electrodes when the electrode tool is retracted.

7. 发明授权

US4345131A Method and apparatus for electrode tool wear compensation 失效
标题翻译：电极刀具磨损补偿方法和装置
公开(公告)号：US4345131A
公开(公告)日：1982-08-17
申请号：US130618
申请日：1980-03-17
申请人： Georges Semon , Alain Wavre
发明人： Georges Semon , Alain Wavre
IPC分类号： B23H1/04 , B23H7/18 , B23P1/14
CPC分类号： B23H7/18
摘要： A method and apparatus for compensating for the wear of an electrode tool during machining by EDM of an electrode workpiece by the electrode tool. During penetration of the electrode tool into the electrode workpiece, relative displacement of the electrodes is stopped as soon as it reaches a predetermined reference position corresponding for example to a machining depth limit data entered in a control buffer memory. The reference position data is corrected as a function of the actual wear of the electrode tool which is measured by comparing the positions taken by the electrode tool when one of its active surfaces reaches the same reference position before and after a machining pass. The correction of the reference position data may be obtained either by successive approximations, or by a single calculation step effected after the first machining pass.
摘要翻译：一种用于通过电极工具补偿电极工件的EDM加工期间电极工具的磨损的方法和装置。在将电极工具穿入电极工件期间，一旦其达到对应于例如输入到控制缓冲存储器中的加工深度限制数据的预定参考位置，电极的相对位移就停止。基准位置数据作为电极工具的实际磨损的函数被校正，该电极工具的磨损通过比较当其一个活动表面在加工过程之前和之后达到相同的参考位置时由电极工具所采取的位置来测量。参考位置数据的校正可以通过逐次逼近或通过在第一加工通过之后实现的单个计算步骤来获得。

8. 发明授权

US4314133A Process and apparatus for electrical discharge machining by means of a wire electrode 失效
标题翻译：通过线电极放电加工的工艺和装置
公开(公告)号：US4314133A
公开(公告)日：1982-02-02
申请号：US119549
申请日：1980-02-07
申请人： Jean Pfau , Alain Wavre
发明人： Jean Pfau , Alain Wavre
IPC分类号： B23H7/06 , B23P1/12
CPC分类号： B23H7/06
摘要： A method and apparatus for cutting a workpiece by electrical discharges by means of a travelling wire electrode according to a path determined by a numerical control program without reducing the machining speed or the current flowing into the wire electrode. At least one of the support and guiding members of the wire electrode is displaced relative to the workpiece along a path resulting from shifting each point of the desired cutting path a predetermined distance in the direction of machining along a tangent to each point of such path. The angle between the tangent at each point of the path relative to the coordinate axes is determined, and each point of the path is shifted relative to the programmed path along coordinates having values proportional respectively to the sine and cosine of the angle.
摘要翻译：一种用于根据由数控程序确定的路径通过行走线电极进行放电而不减少加工速度或流入线电极的电流来切割工件的方法和装置。线电极的支撑和引导构件中的至少一个相对于工件沿着路径移动，该路径是由沿着所需切削路径的每个点沿加工方向沿着这样的路径的每个点的切线移动预定距离而得到的。确定路径相对于坐标轴的每个点处的切线之间的角度，并且路径的每个点相对于沿着具有与角度的正弦和余弦成比例成比例的值的坐标的编程路径移位。

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