Patent application number | Description | Published |
20080226460 | COMPRESSOR ROTOR - A blade as a main body of a rotor blade has a suction side made convex and a pressure side made concave so as to have an aerofoil profile. A squealer tip having a back face continuous to the suction side and a front face matching with a center plane of the blade is formed at a distal end of the blade. The front face is coated with a hard coating. | 09-18-2008 |
20080230374 | ELECTRICAL-DISCHARGE SURFACE-TREATMENT METHOD - An electrode for an electrical-discharge surface-treatment method is molded with a metallic powder or a metallic compound powder having an average grain diameter of 6 micrometers to 10 micrometers. A coat on a surface of a workpiece is formed with a material constituting the electrode or a substance that is generated by a reaction of the material due to a pulse-like electrical discharge. The coat is built up with a material containing metal as a main constituent under conditions of a width of a current pulse for the pulse-like electrical discharge in a range of 50 microseconds to 500 microseconds and a peak of the current pulse equal to or less than 30 amperes. | 09-25-2008 |
20090200748 | ROTATING MEMBER AND METHOD FOR COATING THE SAME - A pulsed discharge is generated between tip ends of a rotating member such as a blade and a discharge electrode including a hard material such as cBN in dielectric liquid or gas by a power supply for discharge to melt the discharge electrode, and a part of the discharge electrode is attached to the tip end of the rotating member to form an abrasive coating film including the hard materials such as cBN. | 08-13-2009 |
20090214352 | SURFACE TREATMENT METHOD AND REPAIR METHOD - A method for forming a dense coating on a limited region of a subject body is disclosed. The method is composed of the steps of: applying one selected from the group of a compressed body of a powder of a metal and a sintered compressed body of a powder of a metal to a working electrode; executing discharge deposition to deposit a first coating from the working electrode on the subject body by applying the subject body as a workpiece of the discharge deposition; executing discharge deposition to deposit a second coating from the working electrode on the first coating by applying the subject body as a workpiece of the discharge deposition; and heating the subject body in one selected from the group of a vacuum, an air and an oxidizing atmosphere so as to densify the second coating or oxidizing the second coating at least in part to generate a solid lubricant substance. | 08-27-2009 |
20090267279 | JIG - A jig for fixing a subject body, is provided with a support block configured to support the subject body, which includes a support face, a coating discharge-deposited to coat the support face, which includes a ceramic, and a fixation member configured to fix the subject body in cooperation with the support block. | 10-29-2009 |
20100080648 | PRODUCTION METHOD OF METAL PRODUCT, METAL PRODUCT, CONNECTION METHOD OF METAL COMPONENT AND CONNECTION STRUCTURE - A deposition is gradually formed by molding a product main body, removing a defect periphery including a defect generated on a surface to be treated of the product main body by molding so that a recess portion is formed on the surface to be treated of the product main body, employing a molded electrode composed of a molded body molded from a powder of a metal or the molded body processed with a heat treatment, and generating a pulsing electric discharge between the recess portion periphery including the recess portion and the molded electrode in an electrically insulating liquid or gas so that a material of the molded electrode or a reaction substance of the material carries out deposition and such at the recess portion periphery by energy of the electric discharge. | 04-01-2010 |
20100086398 | METHOD FOR COATING SLIDING SURFACE OF HIGH-TEMPERATURE MEMBER, HIGH-TEMPERATURE MEMBER AND ELECTRODE FOR ELECTRO-DISCHARGE SURFACE TREATMENT - A sliding surface of a high-temperature portion is subjected to an electro-discharge surface treatment with one or both of a high-temperature hard material (4) and a material having a lubricating property at a high temperature (6). The high-temperature hard material (4) is any or a mixture of cBN, TiC, TiN, TiAlN, TiB | 04-08-2010 |
20100119864 | HEAT-RESISTANT COMPONENT - In a heat-resistant component of a TiAl intermetallic component, in its main body having a friction region subject to friction with other components, a coating discharge-deposited by a consumable electrode covers the friction region. | 05-13-2010 |
20100124490 | ROTATING MEMBER AND METHOD FOR COATING THE SAME - A pulsed discharge is generated between tip ends of a rotating member such as a blade and a discharge electrode including a hard material such as cBN in dielectric liquid or gas by a power supply for discharge to melt the discharge electrode, and a part of the discharge electrode is attached to the tip end of the rotating member to form an abrasive coating film including the hard materials such as cBN. | 05-20-2010 |
20100126871 | DISCHARGING SURFACE PREPARATION METHOD AND REPAIRING METHOD - Generating pulsed discharge between an end surface of an electrode | 05-27-2010 |
20100180725 | ELECTRODE FOR DISCHARGE SURFACE TREATMENT, MANUFACTURING METHOD AND EVALUATION METHOD FOR ELECTRODE FOR DISCHARGE SURFACE TREATMENT, DISCHARGE SURFACE TREATMENT APPARATUS, AND DISCHARGE SURFACE TREATMENT METHOD - An electrode is used to perform discharge surface treatment of a work piece. The electrode is made of a green compact obtained by compression-molding an electrode material including powder of any of a metal, a metallic compound, and ceramics. The discharge surface treatment includes generating an electric discharge between the electrode and the work piece in an atmosphere of a machining medium and forming a film consisting of a machining material on a surface of a work piece using energy produced by the electric discharge. The powder has an average particle diameter of 5 micrometer to 10 micrometers, and contains 40 volume percent or more of a component not forming or less easily forming carbide as a component for forming the film on the work piece. The electrode has a hardness in a range of B to 8B tested with a pencil scratch test for a coating film. | 07-22-2010 |
20100200548 | FABRICATION METHOD OF ELECTRODE FOR SPARK SURFACE MODIFICATION, AND SPARK SURFACE MODIFICATION ELECTRODE | 08-12-2010 |
20100239841 | PROTECTIVE COATING AND METAL STRUCTURE - A protective coating for protecting a component of a gas turbine engine or such from wear is provided with a base coating consisting essentially of metal and including a pore, and a spherical particle filling the pore, at least a surface of which consists essentially of a ceramic. | 09-23-2010 |
20100330302 | DISCHARGE SURFACE TREATMENT METHOD AND COATING BLOCK FOR DISCHARGE SURFACE TREATMENTS - Employing a compact molded from powder of metal or the like as an electrode | 12-30-2010 |
20110027099 | METAL COMPONENT, TURBINE COMPONENT, GAS TURBINE ENGINE, SURFACE PROCESSING METHOD, AND STEAM TURBINE ENGINE - Formation of a protective coating having oxidation resistance on a portion to be processed of a component main body by employing an electrode composed of a molded body molded from mixed powders of one or more of an aluminum powder, an aluminum alloy powder, a chromium powder and a chromium alloy powder, or the molded body processed with a heat treatment, generating a pulsing electric discharge between the portion to be processed of the component main body and the electrode in an electrically insulating liquid or gas so that an electrode material of the electrode is adhered to the portion to be processed of the component main body by energy of the electric discharges, and further keeping the portion to be processed of the component main body and the electrode material adhered thereto in high temperatures so that the electrode material adhered thereto diffuses into a base material of the component main body. | 02-03-2011 |
20110120278 | METHOD OF CUTTING THIN-WALLED MATERIAL - A method is provided to cut a thin-walled member without causing chattering vibration, without using a chattering vibration preventing retainer, that performs the following: (A) preparing a material having much stock for obtaining a thin-walled material, (B) while rotating the material about a center axis, cutting the inner round surface of the material within a predetermined range by feeding a cutting tool relative to material by the desired distance from one end side to the other end side of the material along the center axis, (C) while rotating the material about the center axis, cutting the outer round surface of the material within a predetermined range by feeding the cutting tool relative to the material by the desired distance from the one end side to the other end side of the material along the center axis, and (D) alternately repeating (B) and (C) to finish cutting the material. | 05-26-2011 |
20110232108 | CUTTING INSTRUMENT - A cutting instrument ( | 09-29-2011 |
20110300311 | PRODUCTION METHOD OF ELECTRODE AND DISCHARGE SURFACE TREATMENT THEREWITH - A surface treatment method of a subject body is comprised steps of: packing and pressurizing powder including an electrically conductive material in a mold so as to obtain a plurality of compressed powder bodies; joining the plurality of compressed powder bodies together by arranging the plurality of compressed powder bodies to be mutually in close contact and applying isostatic pressure on the arranged compressed powder bodies; sintering the joined compressed powder bodies so as to obtain a sintered body; and carrying out a discharge surface treatment by bringing the sintered body close to a subject body and generating electric discharge. | 12-08-2011 |
20120114956 | TURBINE COMPONENT, GAS TURBINE ENGINE, PRODUCTION METHOD OF TURBINE COMPONENT, SURFACE TREATMENT METHOD THEREOF, BLADE COMPONENT, METAL COMPONENT AND STEAM TURBINE ENGINE - What disclosed is formation of a protective coating having oxidation resistance and abrasiveness at a portion to be processed of a component main body by employing an electrode composed of a molded body molded form a mixed powder in which a powder of an oxidation-resistant metal and a powder of a ceramic is mixed or the molded body processed with a heat treatment, generating a pulsing electric discharge between the electrode and the portion to be processed of the component main body so that an electrode material of the electrode and such carry out deposition, diffusion and/or welding on the portion to be processed of the component main body by energy of the electric discharge. | 05-10-2012 |
20120128893 | METHOD FOR CLOSING HOLES - A method for closing a hole with a coating is provided. The method comprises attaching the subject body to an electric spark machine as a workpiece; bringing an electrode of a powder including an electrically conductive substance close to the subject body so as to lap the electrode over the hole; applying a voltage between the electrode and the subject body so as to generate electric discharge repetitiously to cause a coating closing the hole to grow from a periphery of the hole; and machining an edge of the hole before applying the voltage, or the coating along the edge of the hole during repetition of applying the voltage, to give a bevel. | 05-24-2012 |
20120156394 | DISCHARGE SURFACE TREATMENT - An electrode used in combination with an electric spark machine for surface treatment, is comprised of a mixed powder including a powder of aluminum at a ratio of 5-18 weight % to the total of the mixed powder or a powder of any metal selected from the group consisting of nickel, cobalt, and iron at a ratio of 5-40 weight % to the total of the mixed powder and a powder of titanium hydride, wherein the mixed powder is formed by molding and sintering into a structure so dimensioned as to be incorporated in the electric spark machine as an electrode therefor. | 06-21-2012 |
20120224962 | SEAL STRUCTURE OF FLUID DEVICE - A seal structure includes: first and second members defining a hollow internal area of a fluid device; and a seal member fixed to the first member for sealing a gap between the first and second members. The seal member includes a sliding contact member being in sliding contact with a surface of the second member and formed of a resin. The second member includes a resin layer and a resin layer holding structure. The resin layer is formed by sliding the second member on the sliding contact member to transfer the resin forming the sliding contact member onto a sliding contact portion of the surface of the second member at which the second member comes into contact with the sliding contact member. The resin layer holding structure is a porous film formed by electric discharge surface treatment and holds the resin layer in the sliding contact portion. | 09-06-2012 |
20120317822 | CUTTING EDGE STRUCTURE FOR CUTTING TOOL, AND CUTTING TOOL WITH CUTTING EDGE STRUCTURE - A cutting edge structure for a cutting tool including: a base member having first and second surfaces intersecting each other; and a cutting edge member supported by the base member and having higher hardness than the base member. The cutting edge member includes a coating formed by generating electric discharge between the second surface and a discharge electrode and by depositing a constituent material of the discharge electrode or a reacted substance of the constituent material on the second surface, the discharge electrode being formed by molding powder of metal, powder of a metal compound, powder of a ceramic, or powder of a mixture thereof. An edge of the coating projects from a cross ridge line between the first and second surfaces toward a distal end side of a cutting edge. The cutting edge angle is 10° to 20° inclusive. | 12-20-2012 |
20130037524 | ELECTRODE APPLIED TO DISCHARGE SURFACE TREATMENT AND PRODUCTION METHOD THEREOF - An electrode applicable to discharge surface treatment is produced. This method is comprised of: kneading a composition including an electrically conductive mixed matter including a first powder obtained by at least any process selected from the group consisting of an atomizing method, a reduction method, and a carbonyl method and a second powder obtained by a crushing method, and a binder, the electrically conductive mixed matter including the second powder at a ratio of 10-65 weight %; injecting the kneaded composition into a mold to produce a green body; heating the green body so as to remove the binder from the green body; and sintering the green body excepting the binder. | 02-14-2013 |
20130146822 | DISCHARGE SURFACE TREATMENT METHOD AND COATING BLOCK FOR DISCHARGE SURFACE TREATMENTS - Employing a compact molded from powder of metal or the like as an electrode | 06-13-2013 |