Patents by Inventor Michel Ly
Michel Ly has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11370046Abstract: A device for machining a part by electrical discharge machining using an electrode wire. The device includes equipment for holding the electrode wire taut and driving the wire to translate longitudinally, in proximity to the part to be machined, in a sparking zone. The device further includes equipment for making a stream of dielectric liquid flow through the sparking zone between the electrode wire and the part to be machined. An electrical power source generates electrical pulses that cause sparks in the sparking zone between the electrode wire and the part to be machined. The quantity of gas bubbles present in the sparking zone is measured, and a signal is produced, representative of the quantity of bubbles, the signal being delivered to a controller. The controller modifies machining parameters so as to maintain the value of the signal within a suitable range.Type: GrantFiled: July 18, 2019Date of Patent: June 28, 2022Assignee: THERMOCOMPACTInventors: Michel Ly, Gérald Sanchez
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Publication number: 20210402497Abstract: An electrode wire for electroerosion machining, the electrode wire including a metal core, made of one or more layers of metal or metal alloy. On the metal core there is a coating having an alloy different from that of the metal core, and containing more than 50% by weight of zinc. The coating includes delta-phase copper-zinc alloy.Type: ApplicationFiled: December 19, 2019Publication date: December 30, 2021Inventors: Michel Ly, Gérald Sanchez
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Publication number: 20210197301Abstract: According to the invention, the electrode wire (1) for electric discharge machining comprises a metal core (2), in one or more layers of metal or metal alloy. On the metal core (2), a coating (3) having an alloy different from that of the metal core (2) contains more than 50 wt % zinc. The coating (3) comprises copper-zinc alloy (3a) of fractured ? phase, and covers the majority of the metal core (2). The coating (3) contains covered pores (5a, 5b, 5c, 5d, 5e) larger than 2 ?m.Type: ApplicationFiled: June 28, 2019Publication date: July 1, 2021Inventors: Michel Ly, Gérald Sanchez, Blanche Ouvrard, Ludovic Lafleur
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Patent number: 10835975Abstract: A device for identifying a spark-erosion wire conditioned on a coil includes a radio tag, rigidly connected to the coil and accessible for reading data that it supports, identification data of the wire, supported by the radio tag, a data-reading device, associated with a wire spark-erosion machine, capable of reading the identification data supported by the radio tag of the coil, and capable of transmitting the identification data to the wire spark-erosion machine, an acquisition device for generating and recording over time as identification data, in the radio tag, historical data selected from the group that consists of historical usage data describing usage conditions of the wire supported by the coil and historical constraint data describing physical constraints to which the wire supported by the coil is subjected.Type: GrantFiled: September 30, 2016Date of Patent: November 17, 2020Assignee: THERMOCOMPACTInventors: Philippe Descaillot, Michel Ly, Gilles Mollard, Blanche Ouvrard
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Publication number: 20200023451Abstract: A device for machining a part (8) by electrical discharge machining using an electrode wire (4), comprising: means (20, 30, 60) for holding the electrode wire (4) taut and driving it to translate longitudinally, in proximity to said part (8) to be machined, in a sparking zone (5), means (50) for making a stream of dielectric liquid flow through the sparking zone (5) between the electrode wire (4) and the part (8) to be machined, an electrical power source (10) for generating electrical pulses that cause sparks in the sparking zone (5) between the electrode wire (4) and the part (8) to be machined, controlling means (40) that control the device depending on the machining parameters, measuring means (70) for evaluating the quantity of gas bubbles present in the sparking zone (5) between the electrode wire (4) and the part (8) to be machined, and for delivering to the controlling means (40) a signal (73) representative of said quantity of gas bubbles, in the controlling means (40), adapting means (41) for modType: ApplicationFiled: July 18, 2019Publication date: January 23, 2020Inventors: Michel Ly, Gérald Sanchez
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Publication number: 20190275701Abstract: A marked abrasive wire including, on the cylindrical outer face thereof and between abrasive particles, a mark that is deformed as a function of the twisting of the abrasive wire, this mark extending longitudinally over at least 50% of the total length of the abrasive wire and having a reflectance Rm at a wavelength ?m,—during the displacement of the wire and with the aid of a sensor sensitive to the reflectance of the outer face of the abrasive wire, the reading of at least one characteristic of the current shape of the mark that varies as a function of the twisting of the abrasive wire, and—the estimation of the twisting of the abrasive wire from the observed characteristic of the current shape of the mark and from a known value of this characteristic corresponding to a known twisting of the abrasive wire.Type: ApplicationFiled: September 19, 2017Publication date: September 12, 2019Applicants: THERMOCOMPACT, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES AL TERNATIVESInventors: Michel LY, Ludovic LAFLEUR, Tifenn DECORPS, Xavier WEBER
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Publication number: 20180257159Abstract: A device for identifying a spark-erosion wire conditioned on a coil includes a radio tag, rigidly connected to the coil and accessible for reading data that it supports, identification data of the wire, supported by the radio tag, a data-reading device, associated with a wire spark-erosion machine, capable of reading the identification data supported by the radio tag of the coil, and capable of transmitting the identification data to the wire spark-erosion machine, an acquisition device for generating and recording over time as identification data, in the radio tag, historical data selected from the group that consists of historical usage data describing usage conditions of the wire supported by the coil and historical constraint data describing physical constraints to which the wire supported by the coil is subjected.Type: ApplicationFiled: September 30, 2016Publication date: September 13, 2018Inventors: Philippe Descaillot, Michel Ly, Gilles Mollard, Blanche Ouvrard
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Patent number: 10058942Abstract: An abrasive wire including a steel core and a coating including a binder and abrasive particles, the binder being formed by at least one iron alloy layer containing, by weight percent in relation to the weight of the binder: between 0 and 3% oxygen, advantageously between 0 and 2%; and between 0.3% and 9% of at least one element selected from the group including carbon, boron an phosphorous.Type: GrantFiled: April 15, 2014Date of Patent: August 28, 2018Assignees: Commissariate a I'Energie Atomique et aux Energies Alternatives, ThermocompactInventors: Michel Ly, Gérald Sanchez, Xavier Weber
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Publication number: 20180193933Abstract: The invention relates to an abrasive wire which comprises: abrasive particles (32) of which the 5% minimum diameter, denoted D5, is no lower than 5 ?m and of which the 95% maximum diameter, denoted D95, is less than 40 ?m; and a binder (34) which mechanically holds the abrasive particles on a central core, the thickness of said binder being between Tbo_min and Tbo_max, where Tbo_min and Tbo_max are provided by the following relationships Tbo_max=D5×(1?Emin/100) and Tho_min=D95×(1?Emax/100), where Emin and Emax are, respectively, greater than 50% and less than 90%. The binder (34) has a hardness of greater than 450 Hv on the Vickers scale and the number of abrasive particles (32) per millimeter of wire is less than 31 and greater than 1 over at least 1 km of the length of the wire.Type: ApplicationFiled: June 8, 2016Publication date: July 12, 2018Applicants: THERMOCOMPACT, COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVESInventors: Michel LY, Gerald SANCHEZ, Ludovic LAFLEUR, Xavier WEBER, Tifenn DECORPS
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Patent number: 9623501Abstract: An abrasive wire including a steel core and an outer coating including a binder and abrasive particles, the binder being formed by at least one nickel-cobalt alloy layer having a cobalt content of between 20 wt.-% and 85 wt.-% in relation to the weight of the Ni/Co alloy.Type: GrantFiled: April 15, 2014Date of Patent: April 18, 2017Assignees: Commissariat A L'Energie Atomique Et Aux Energies Alternatives, ThermocompactInventors: Michel Ly, Gérald Sanchez, Xavier Weber
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Patent number: 9610642Abstract: A process for manufacturing an abrasive wire formed by abrasive particles held on a central core by a binder comprises depositing abrasive particles on the central core, each particle comprising a magnetic material that has a relative permeability greater than 50 and that represents at least 1% of the volume of the abrasive particle, and depositing binder on the central core to keep the abrasive particles attached to it. The core has south poles and north poles alternating along either its circumference or its length.Type: GrantFiled: March 29, 2013Date of Patent: April 4, 2017Assignees: Commissariat À L'Énergie Atomique Et Aux Énergies Alternatives, Thermocompact, Centre National de la Recherche ScientifiqueInventors: Gérald Sanchez, Michel Ly, Sophie Rivoirard, Arnaud Griffond
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Publication number: 20160121413Abstract: An abrasive wire including a steel core and an outer coating including a binder and abrasive particles, the binder being formed by at least one nickel-cobalt alloy layer having a cobalt content of between 20 wt.-% and 85 wt.-% in relation to the weight of the Ni/Co alloy.Type: ApplicationFiled: April 15, 2014Publication date: May 5, 2016Applicants: Commissariat A L'Energie Atomique Et Aux Energies Alternatives, ThermocompactInventors: Michel Ly, Gérald Sanchez, Xavier Weber
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Publication number: 20160082533Abstract: An abrasive wire including a steel core and a coating including a binder and abrasive particles, the binder being formed by at least one iron alloy layer containing, by weight percent in relation to the weight of the binder: between 0 and 3% oxygen, advantageously between 0 and 2%; and between 0.3% and 9% of at least one element selected from the group including carbon, boron an phosphorous.Type: ApplicationFiled: April 15, 2014Publication date: March 24, 2016Inventors: Michel Ly, Gérald Sanchez, Xavier Weber
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Publication number: 20150068131Abstract: A process for manufacturing an abrasive wire formed by abrasive particles held on a central core by a binder comprises depositing abrasive particles on the central core, each particle comprising a magnetic material that has a relative permeability greater than 50 and that represents at least 1% of the volume of the abrasive particle, and depositing binder on the central core to keep the abrasive particles attached to it. The core has south poles and north poles alternating along either its circumference or its length.Type: ApplicationFiled: March 29, 2013Publication date: March 12, 2015Applicants: Commissarial a renergie atomique et aux energies alternatives, Thermocompact, CEntre NAtional de la Recherche ScientiqueInventors: Gérald Sanchez, Michel Ly, Sophie Rivoirard, Arnaud Grifford
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Patent number: 8519294Abstract: The invention concerns an electrode wire comprising a metal core coated with a zinc surface cladding whereof the thickness ranges between 2 and 4 ?m, thereby providing a better compromise between machining speed, precision of workpieces and surface condition of the machined workpieces.Type: GrantFiled: July 6, 2001Date of Patent: August 27, 2013Assignee: ThermocompactInventor: Michel Ly
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Patent number: 8378247Abstract: The invention relates to a wire (1) which comprises a copper or pinchbeck core (2) surrounded by a pinchbeck coating consisting of a continuous pinchbeck sub-layer (3) in phase ? and a superficial layer (4) with a fractured pinchbeck structure in phase ? enabling the appearance of pinchbeck in phase ? in the fractures (5a). In this way, the electrical discharge machining speed is essentially increased.Type: GrantFiled: February 10, 2006Date of Patent: February 19, 2013Assignee: ThermocompactInventors: Patrick Blanc, Michel Ly, Gerald Sanchez
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Patent number: 8338735Abstract: The electrode wire according to the invention comprises a brass core (1) covered with a ? phase brass coating (2) having a structure fragmented into blocks (2a) between which the core (1) is exposed. The blocks (2a) have a thickness (E2) with a narrow distribution and produce a coverage of the core (1) according to a coverage rate greater than 50%. This produces a regular fragmentation of the coating, which improves the finish state of the machined parts.Type: GrantFiled: January 28, 2008Date of Patent: December 25, 2012Assignee: ThermocompactInventors: Michel Ly, Gerald Sanchez
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Patent number: 7687738Abstract: The invention concerns an electrode wire comprising an unalloyed copper core coated with a diffused zinc alloy coating layer, whereof the thickness is more than 10% of the wire diameter. The coating layer is optionally plated with a thin zinc, copper, nickel, silver or gold surface contact film. Such a wire achieves higher electrical discharge machining speed.Type: GrantFiled: December 20, 2002Date of Patent: March 30, 2010Assignee: ThermocompactInventor: Michel Ly
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Publication number: 20080179296Abstract: The electrode wire according to the invention comprises a brass core (1) covered with a ? phase brass coating (2) having a structure fragmented into blocks (2a) between which the core (1) is exposed. The blocks (2a) have a thickness (E2) with a narrow distribution and produce a coverage of the core (1) according to a coverage rate greater than 50%. This produces a regular fragmentation of the coating, which improves the finish state of the machined parts.Type: ApplicationFiled: January 28, 2008Publication date: July 31, 2008Applicant: THERMOCOMPACTInventors: Michel LY, Gerald SANCHEZ
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Publication number: 20080061038Abstract: The invention relates to a wire (1) which comprises a copper or pinchbeck core (2) surrounded by a pinchbeck coating consisting of a continuous pinchbeck sub-layer (3) in phase ? and a superficial layer (4) with a fractured pinchbeck structure in phase ? enabling the appearance of pinchbeck in phase ? in the fractures (5a). In this way, the electrical discharge machining speed is essentially increased.Type: ApplicationFiled: February 10, 2006Publication date: March 13, 2008Applicant: ThermocompactInventors: Patrick Blanc, Michel Ly, Gerald Sanchez