Patents by Inventor Yimin Zhan
Yimin Zhan 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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Publication number: 20230302577Abstract: A temperature control method for additive manufacturing includes directing an energy beam of a first energy source toward a material and fusing at least a portion of the material to form a cladding layer, forging the cladding layer with a micro-forging device, and detecting a first internal effect parameter of the cladding layer at a forging position where is forged by the micro-forging device. The first internal effect parameter includes at least one of a stress or a strain of the cladding layer. The method also includes calculating a first calculated temperature of the cladding layer at the forging position based on the first internal effect parameter and adjusting the at least one of the first energy source and the micro forging device if the first calculated temperature does not fall within a desired temperature range.Type: ApplicationFiled: May 18, 2023Publication date: September 28, 2023Inventors: Yong Wu, Hai Chang, Yifeng Wang, Zirong Zhai, Dalong Zhong, Yingna Wu, Yimin Zhan
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Patent number: 11673211Abstract: The invention relates to a temperature control system for additive manufacturing and method for same. The temperature control system comprises: a cladding device configured to fuse a material and form a cladding layer, the cladding device comprising a first energy source; a micro-forging device coupled to the cladding device for forging the cladding layer; a detecting device; a control module; and an adjusting module coupled to at least one of the first energy source and the micro-forging device.Type: GrantFiled: January 9, 2019Date of Patent: June 13, 2023Assignee: General Electric CompanyInventors: Yong Wu, Yingna Wu, Zirong Zhai, Hai Chang, Yifeng Wang, Yimin Zhan, Dalong Zhong
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Publication number: 20190217417Abstract: The invention relates to a temperature control system for additive manufacturing and method for same. The temperature control system comprises: a cladding device configured to fuse a material and form a cladding layer, the cladding device comprising a first energy source; a micro-forging device coupled to the cladding device for forging the cladding layer; a detecting device; a control module; and an adjusting module coupled to at least one of the first energy source and the micro-forging device.Type: ApplicationFiled: January 9, 2019Publication date: July 18, 2019Inventors: Yong Wu, Yingna Wu, Zirong Zhai, Hai Chang, Yifeng Wang, Yimin ZHAN, Dalong Zhong
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Patent number: 9416462Abstract: A machining system for machining a workpiece is provided. The machining system comprises a machine tool, a plurality of cutting tools, a CNC controller. The plurality of cutting tools comprises an electrode and a conventional cutting tool exchangeably disposed on the machine tool. The machining system further comprises a power supply, a process controller, and an electrolyte supply, wherein the machine tool, the electrode, the CNC controller, the power supply, the process controller and the electrolyte supply are configured to cooperate to function as an electroerosion machining device, wherein the machine tool, the CNC controller, the conventional cutting tool and the electrolyte supply are configured to cooperate to function as a conventional machining device, and wherein the machining system is configured to function alternately as the electroerosion machining device and the conventional machining device.Type: GrantFiled: September 13, 2011Date of Patent: August 16, 2016Assignee: General Electric CompanyInventors: Yimin Zhan, Yuanyuan Guo, Yuanfeng Luo, Renewi Yuan, Zhixue Peng, Garth M. Nelson, Massimo Arcioni, Francescosaverio Chiari, Hongtao Li
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Patent number: 8999136Abstract: A Method and machine tool for compensating a wear of an electrode that machines a workpiece. The method includes selecting a current pocket from plural pockets of the workpiece; updating a wear compensation to be applied to the electrode for the current pocket based on wear compensation of a previous pocket, where the previous pocket is adjacent to the current pocket; and applying the updated wear compensation to the electrode for machining the current pocket.Type: GrantFiled: September 14, 2010Date of Patent: April 7, 2015Assignee: Nuovo Pignone S.p.A.Inventors: Ugo Cantelli, Garth M Nelson, Yuanfeng Luo, Yimin Zhan, Roberto Ciappi, Massimo Arcioni, Renwei Yuan
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Patent number: 8560110Abstract: An electroerosion control system includes a general CNC controller being configured for controlling a general CNC machine process, a power supply for energizing a tool electrode and a workpiece to be machined, an electroerosion controller electrically connecting with the power supply for controlling an output of the power supply, and adaptively and electrically connecting with the general CNC controller for communication thereof, and a sensor sensing real-time status information of a working gap between the tool electrode and the workpiece and for sending said real-time status information to said electroerosion controller. Said electroerosion controller automatically controls the electroerosion machining process through the general CNC controller according to the real-time status information of the working gap.Type: GrantFiled: June 9, 2010Date of Patent: October 15, 2013Assignee: General Electric CompanyInventors: Yimin Zhan, Renwei Yuan, Garth M. Nelson, Yuanfeng Luo, Jun Cai, Ugo Cantelli
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Publication number: 20130220826Abstract: A machining system for machining a workpiece is provided. The machining system comprises a machine tool, a plurality of cutting tools, a CNC controller. The plurality of cutting tools comprises an electrode and a conventional cutting tool exchangeably disposed on the machine tool. The machining system further comprises a power supply, a process controller, and an electrolyte supply, wherein the machine tool, the electrode, the CNC controller, the power supply, the process controller and the electrolyte supply are configured to cooperate to function as an electroerosion machining device, wherein the machine tool, the CNC controller, the conventional cutting tool and the electrolyte supply are configured to cooperate to function as a conventional machining device, and wherein the machining system is configured to function alternately as the electroerosion machining device and the conventional machining device.Type: ApplicationFiled: September 13, 2011Publication date: August 29, 2013Inventors: Yimin Zhan, Yuanyuan Guo, Yuanfeng Luo, Renewi Yuan, Zhixue Peng, Garth M. Nelson, Massimo Arcioni, Francescosaverio Chiari, Hongtao Li
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Patent number: 8471167Abstract: A rough machining method for machining a channel in a workpiece includes the steps of: provide a power supply to energize one of a workpiece and an electrode as an anode and the other as a cathode; advance the electrode into the workpiece from a first start point to travel a first toolpath, so as to generate a first annular groove with a first core connecting with the workpiece; advance the electrode into the workpiece from a second start point to travel a second toolpath, so as to generate a second annular groove with a second core connecting with the workpiece, wherein the second annular groove intersects with the first annular groove and the first and the second cores are at least partially broken and disconnected with the workpiece upon intersecting of the first and the second annular grooves; and circulating a cutting fluid cross a working gap between a working face of the electrode and the workpiece.Type: GrantFiled: April 7, 2008Date of Patent: June 25, 2013Assignee: General Electric CompanyInventors: Yuanfeng Luo, Garth Nelson, Ugo Cantelli, Renwei Yuan, Yimin Zhan
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Publication number: 20120240386Abstract: A Method and machine tool for compensating a wear of an electrode that machines a workpiece. The method includes selecting a current pocket from plural pockets of the workpiece; updating a wear compensation to be applied to the electrode for the current pocket based on wear compensation of a previous pocket, where the previous pocket is adjacent to the current pocket; and applying the updated wear compensation to the electrode for machining the current pocket.Type: ApplicationFiled: September 14, 2010Publication date: September 27, 2012Inventors: Ugo Cantelli, Garth M. Nelson, Yuanfeng Luo, Yimin Zhan, Roberto Ciappi, Massimo Arcioni, Renwei Yuan
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Patent number: 8236162Abstract: An electroerosion machining system comprises an electrode, a power supply, an electrolyte supply, an electroerosion controller connected to and monitoring the power supply, and a working apparatus configured to move the electrode relative to the workpiece. The electroerosion machining system further comprises a CNC controller configured to cooperate with the electroerosion controller to control the working apparatus, and to calculate a wear value of the electrode. Further, the CNC controller is configured to segment the toolpath of every layer into a plurality of segments, and to divide the compensation value for every layer to be machined into a plurality of value segments, and further to use the value segments to compensate for electrode wear along the respective toolpath segments during machining of the workpiece. An electroerosion machining method is also presented.Type: GrantFiled: September 30, 2008Date of Patent: August 7, 2012Assignee: General Electric CompanyInventors: Yimin Zhan, Bin Wei, Michael Scott Lamphere, Renwei Yuan, Yuanfeng Luo
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Publication number: 20100320078Abstract: An electroerosion spindle assembly includes a main shaft, a tool electrode having a rear end directly or indirectly attached to the shaft and in alignment with the main shaft in a longitudinal direction, a container surrounding the main shaft, a stationary-to-rotary electrical conduction device mounted on the container for transitting power energy to the tool electrode, and a channel routing a flushing fluid to a front end of the tool electrode. The channel has at least one flushing slot in the container.Type: ApplicationFiled: June 9, 2010Publication date: December 23, 2010Inventors: Renwei Yuan, Garth M. Nelson, Yuanfeng Luo, Roberto Ciappi, Jun Cai, Yimin Zhan, Ugo Cantelli, Massimo Arcioni
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Publication number: 20100324720Abstract: An electroerosion control system includes a general CNC controller being configured for controlling a general CNC machine process, a power supply for energizing a tool electrode and a workpiece to be machined, an electroerosion controller electrically connecting with the power supply for controlling an output of the power supply, and adaptively and electrically connecting with the general CNC controller for communication thereof, and a sensor sensing real-time status information of a working gap between the tool electrode and the workpiece and for sending said real-time status information to said electroerosion controller. Said electroerosion controller automatically controls the electroerosion machining process through the general CNC controller according to the real-time status information of the working gap.Type: ApplicationFiled: June 9, 2010Publication date: December 23, 2010Inventors: Yimin ZHAN, Renwei Yuan, Garth M. Nelson, Yuanfeng Luo, Jun Cai, Ugo Cantelli
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Patent number: 7824526Abstract: An apparatus and method for adapting a CNC milling machine for electroerosion machining. The apparatus includes a tubular electrode on the distal end of an adapter shaft. A tool holder on the proximal end of the adapter shaft is mountable in the chuck of a cutter spindle in the milling machine. The adapter shaft is rotatably mounted within a bearing and an electrical brush contact subassembly, both of which are supported by a bracket. The bracket is attached to the milling machine but insulates it from the tool electrode. The bearing supports the adapter shaft in alignment with the CNC spindle. An electrical power supply energizes the electrode and the workpiece for electroerosion in a gap between them. Electrolyte is circulated through the spinning tool electrode during operation. The CNC computer is configured to operate the machine, power supply, and electrolyte flow for electroerosion machining.Type: GrantFiled: December 11, 2006Date of Patent: November 2, 2010Assignee: General Electric CompanyInventors: Renwei Yuan, Yimin Zhan, Ugo Cantelli, Yuanfeng Luo, Garth M. Nelson
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Publication number: 20100163427Abstract: An electromachining system is described. The electromachining system includes a computer numerical controller (CNC) device and an electromachining controller device coupled to the CNC device and a power supply. The electromachining system also includes an electromachining tool coupled to the CNC device and the power supply. The electromachining controller device is configured to control operation of the electromachining tool and the CNC device is configured to position the electromachining tool relative to a workpiece.Type: ApplicationFiled: December 31, 2008Publication date: July 1, 2010Inventors: Yimin Zhan, Renwei Yuan, Yuangfeng Luo
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Publication number: 20100078333Abstract: An electroerosion machining system comprises an electrode, a power supply, an electrolyte supply, an electroerosion controller connected to and monitoring the power supply, and a working apparatus configured to move the electrode relative to the workpiece. The electroerosion machining system further comprises a CNC controller configured to cooperate with the electroerosion controller to control the working apparatus, and to calculate a wear value of the electrode. Further, the CNC controller is configured to segment the toolpath of every layer into a plurality of segments, and to divide the compensation value for every layer to be machined into a plurality of value segments, and further to use the value segments to compensate for electrode wear along the respective toolpath segments during machining of the workpiece. An electroerosion machining method is also presented.Type: ApplicationFiled: September 30, 2008Publication date: April 1, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Yimin Zhan, Bin Wei, Michael Scott Lamphere, Renwei Yuan, Yuanfeng Luo
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Publication number: 20090001053Abstract: A rough machining method for machining a channel in a workpiece includes the steps of: provide a power supply to energize one of a workpiece and an electrode as an anode and the other as a cathode; advance the electrode into the workpiece from a first start point to travel a first toolpath, so as to generate a first annular groove with a first core connecting with the workpiece; advance the electrode into the workpiece from a second start point to travel a second toolpath, so as to generate a second annular groove with a second core connecting with the workpiece, wherein the second annular groove intersects with the first annular groove and the first and the second cores are at least partially broken and disconnected with the workpiece upon intersecting of the first and the second annular grooves; and circulating a cutting fluid cross a working gap between a working face of the electrode and the workpiece.Type: ApplicationFiled: April 7, 2008Publication date: January 1, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Yuanfeng Luo, Garth Nelson, Ugo Cantelli, Renwei Yuan, Yimin Zhan
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Publication number: 20080142488Abstract: Disclosed herein is a compound electrode comprising a first portion comprising graphite; and a second portion comprising a metal; wherein the first portion is in continuous communication with the second portion along a length of the compound electrode. Disclosed herein too is a compound electrode comprising a first portion comprising graphite; and a second portion comprising a metal; wherein the first portion is in a tight fit with the second portion along a length of the compound electrode. Disclosed herein is a method comprising creating an electric arc between a compound electrode and a workpiece; wherein the compound electrode comprises a first portion comprising graphite; and a second portion comprising a metal; wherein the first portion is in a tight fit with the second portion along a length of the compound electrode; and removing a portion of the workpiece.Type: ApplicationFiled: December 19, 2006Publication date: June 19, 2008Applicant: GENERAL ELECTRIC COMPANYInventors: Yuanfeng Luo, Garth M. Nelson, Ugo Cantelli, Renwei Yuan, Yimin Zhan, Enzo Nocciolini
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Publication number: 20070256939Abstract: An electroerosion apparatus comprising: an electrode, a multiaxis machine, an electrolyte supply including a conduit for circulating an electrolyte, and a controller in operative communication with the multiaxis machine and configured for distributing intermittent multiple electrical arcs between the electrode and a workpiece. The multiaxis machine comprises a tool head configured to support and to spin the electrode, and a spindle configured to support a workpiece. The electrolyte comprises an anti-rusting agent, a defoaming agent, a lucent additive, a burst additive, a surface active medium, a lubricant, and water, and has a conductivity of about 0.1 milliSiemens to about 30 milliSiemens. In one embodiment, the method of electroerosion machining a workpiece comprises: creating relative motion between a spinning electrode and a workpiece; circulating an electrolyte around the spinning electrode, and distributing multiple electrical arcs between the electrode tip and the workpiece.Type: ApplicationFiled: June 28, 2007Publication date: November 8, 2007Applicant: GENERAL ELECTRIC COMPANYInventors: Bin Wei, Michael Lamphere, Steven Hayashi, Jeffrey Wessels, Renwei Yuan, Yuanfeng Luo, Yimin Zhan