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公开(公告)号：US11998997B2
公开(公告)日：2024-06-04
申请号：US18086040
申请日：2022-12-21
申请人： FANUC CORPORATION
发明人： Ryuuki Funakubo
IPC分类号： B23H7/20 , B23H1/02 , B23H7/06 , G05B19/414
CPC分类号： B23H7/20 , B23H1/024 , B23H7/06 , G05B19/414 , G05B2219/45221
摘要： A machining program editor that edits a machining program in which a machining path for a wire electrode of a wire electrical discharge machine is set, the machining program editor including: a path determination unit configured to determine whether or not the machining path includes a linear path section that crosses a boundary line between a thick portion of a workpiece and a thin portion of the workpiece, a thickness of the thin portion being smaller than a thickness of the thick portion in an extending direction of the wire electrode; and a path compensator configured to compensate the machining path so as to form, in the thin portion over a predetermined distance, a protrusion projecting outward from the boundary line when the path determination unit determines that the linear path section is included.
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2.发明公开公开(公告)号：US20230390844A1
公开(公告)日：2023-12-07
申请号：US18250805
申请日：2021-11-01
申请人： FANUC CORPORATION
发明人： Ryuuki FUNAKUBO , Ryo NISHIKAWA
摘要： A wire electrical discharge machining apparatus includes a servo controller that controls the relative speed of a wire electrode in relation to a workpiece, in accordance with a machining parameter; a machining electrical current control unit that controls the electrical discharge energy produced between poles; an electrical discharge determination unit that determines whether electrical discharge has occurred between the poles within a unit time; and a machining parameter setting unit that sets a machining parameter, which is for during the approach to a machining end surface, to a first parameter, and sets the machining parameter to a second parameter when the number of times that electrical discharge has been determined to have occurred has reached a prescribed number of times.
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公开(公告)号：US11826845B2
公开(公告)日：2023-11-28
申请号：US18032816
申请日：2021-04-12
发明人： Atsushi Itokazu
CPC分类号： B23H7/20 , B23H7/10 , B23H7/16 , G05B19/182 , G05B2219/45221
摘要： A multi-wire electric discharge machine includes: a plurality of cutting wire sections arranged in parallel in such a way as to face a workpiece, a wire electrode being wound around guide rollers to form the cutting wire sections; a drive unit that adjusts relative distances between the workpiece and the cutting wire sections; a machining power supply that applies pulse voltages between the workpiece and the cutting wire sections; a machining-state detection device that detects machining states in the cutting wire sections; and a machining control device that controls the drive unit and the machining power supply, in which when values indicating the machining states exceed a threshold value, the machining control device outputs, to the machining power supply, commands to apply the pulse voltages according to a machining condition for avoiding breakage of the wire electrode.
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公开(公告)号：US20230374693A1
公开(公告)日：2023-11-23
申请号：US18230398
申请日：2023-08-04
发明人： Jiandong FENG , Ke LIU , Aleksandra RADENOVIC , Yann ASTIER
IPC分类号： C25F3/12 , B23H9/14 , B23H7/20 , G01N33/487 , G01N27/414 , B23H3/02 , C12Q1/6869 , C25F7/00 , G01N27/447
CPC分类号： C25F3/12 , B23H9/14 , B23H7/20 , G01N33/48721 , G01N27/4145 , B23H3/02 , C12Q1/6869 , C25F7/00 , G01N27/44791 , G01R19/0092
摘要： The invention relates to a method for making nanopores in thin layers or monolayers of transition metal dichalcogenides that enables accurate and controllable formation of pore within those thin layer(s) with sub-nanometer precision.
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公开(公告)号：US11753738B2
公开(公告)日：2023-09-12
申请号：US17876161
申请日：2022-07-28
发明人： Jiandong Feng , Ke Liu , Aleksandra Radenovic , Yann Astier
IPC分类号： C25F3/12 , B23H9/14 , B23H3/02 , B23H7/20 , G01N33/487 , G01N27/414 , C12Q1/6869 , C25F7/00 , G01N27/447 , G01R19/00
CPC分类号： C25F3/12 , B23H3/02 , B23H7/20 , B23H9/14 , C12Q1/6869 , C25F7/00 , G01N27/4145 , G01N27/44791 , G01N33/48721 , G01R19/0092
摘要： The invention relates to a method for making nanopores in thin layers or monolayers of transition metal dichalcogenides that enables accurate and controllable formation of pore within those thin layer(s) with sub-nanometer precision.
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公开(公告)号：US11669077B2
公开(公告)日：2023-06-06
申请号：US17613086
申请日：2019-07-03
发明人： Yuhei Domori , Tatsuya Kato , Ken Inukai
IPC分类号： G05B19/418 , B23H11/00 , B23H7/20
CPC分类号： G05B19/41865 , B23H11/00 , G05B2219/31264 , G05B2219/32348 , G05B2219/45043
摘要： A machine learning apparatus includes: a state observation unit that observes a characteristic shape, an adopted plan, and a determination result as state variables, the characteristic shape representing a shape of a part of a product of wire electric discharge machining, adjustment of machining conditions being deemed as necessary for the part of the product, the adopted plan being an adjustment method selected from among one or more adjustment methods for adjusting the machining conditions to improve machining performance for the part indicated by the characteristic shape, the determination result indicating whether implementation of the adopted plan is effective in improving machining performance for the part corresponding to the characteristic shape; and a learning unit that learns the machining condition adjustment method according to a data set created based on the state variables.
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公开(公告)号：US20220371115A1
公开(公告)日：2022-11-24
申请号：US17741942
申请日：2022-05-11
申请人： Agie Charmilles SA
发明人： Marco BOCCADORO
摘要： A method and device for electrical discharge machining (EDM) a workpiece by means of a train of machining pulses. During the machining time the machining pulses are applied to the working gap between workpiece and electrode. An open voltage is first applied, and it is increased to a second open voltage level if a discharge does not occur within a waiting time d0, and further increased to a third open voltage level if a discharge does not occur within a second waiting time d1.
An average product of the actual open voltages times the partial ignition delays is computed and subtracted from the product of a reference open voltage times the total ignition delay, and the servo setpoint value is adjusted accordingly. The actual axes positions are sampled in real time and the discharge electrical parameters are adjusted accordingly. The discharge electrical parameters can be adjusted according to the duration of d0 and d1.-
公开(公告)号：US11458554B2
公开(公告)日：2022-10-04
申请号：US16826570
申请日：2020-03-23
申请人： FANUC CORPORATION
发明人： Minjie Al
摘要： A wire electrical discharge machine determines the position of an endface of a workpiece by relatively moving a wire electrode toward the workpiece. The wire electrical discharge machine includes: a voltage application control unit configured to continuously apply voltage pulses between the wire electrode and the workpiece; a voltage detection unit configured to detect a voltage between the wire electrode and the workpiece; a pulse occurrence ratio calculation unit configured to calculate a pulse occurrence ratio that is a ratio of the number of the voltage pulses detected by the voltage detection unit to the number of the voltage pulses applied per a predetermined time by the voltage application control unit; and an endface position determination unit configured to determine the position of the endface of the workpiece based on the pulse occurrence ratio.
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公开(公告)号：US11033975B2
公开(公告)日：2021-06-15
申请号：US16438752
申请日：2019-06-12
申请人： FANUC CORPORATION
发明人： Hiroyuki Abe , Hiroyuki Furukawa
摘要： A wire electrical discharge machine for performing electrical discharge machining on a workpiece to be machined by applying voltage to an electrode gap formed between a wire electrode and the workpiece to generate electrical discharge at the electrode gap under predetermined machining conditions while conveying the wire electrode along a transfer path, includes: a wire breakage detector for detecting a breakage of the wire electrode; a position calculator for calculating the breakage position of the wire electrode in the transfer path; and an adjustment unit for adjusting the machining conditions when the breakage position is in a predetermined section of the transfer path.
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公开(公告)号：US20210023638A1
公开(公告)日：2021-01-28
申请号：US16523417
申请日：2019-07-26
发明人： Joel JEAN , Ghislain HARDY , Visal ING
摘要： Methods and systems for wire-electro discharge machining of components are described. The method comprises machining a first component by moving a wire-EDM electrode along a first set of cutting paths associated with a plurality of cutting passes, the cutting paths determined based on a desired profile shape of the component, obtaining a cutting parameter of the first component post-machining, determining a first modified cutting path for a second component based on the cutting parameter, and machining the second component by moving the wire-EDM electrode along a second set of cutting paths associated with the plurality of cutting passes, the second set of cutting paths comprising the first modified cutting path.
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