US20100080648A1 - Production method of metal product, metal product, connection method of metal component and connection structure - Google Patents
Production method of metal product, metal product, connection method of metal component and connection structure Download PDFInfo
- Publication number
- US20100080648A1 US20100080648A1 US12/632,436 US63243609A US2010080648A1 US 20100080648 A1 US20100080648 A1 US 20100080648A1 US 63243609 A US63243609 A US 63243609A US 2010080648 A1 US2010080648 A1 US 2010080648A1
- Authority
- US
- United States
- Prior art keywords
- deposition
- recess portion
- metal
- main body
- axis direction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
- B23H1/04—Electrodes specially adapted therefor or their manufacture
- B23H1/06—Electrode material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
- B23H9/00—Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
- B23H9/001—Disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P6/00—Restoring or reconditioning objects
- B23P6/002—Repairing turbine components, e.g. moving or stationary blades, rotors
- B23P6/007—Repairing turbine components, e.g. moving or stationary blades, rotors using only additive methods, e.g. build-up welding
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C26/00—Coating not provided for in groups C23C2/00 - C23C24/00
Definitions
- the present invention relates to a production method of a metal product, a metal product, a connection method of metal components and a connection structure.
- a series of steps for producing a metal product such as a cylinder and a series of steps for joining a pair of metal components respectively having beveling portions respectively include a step of forming a weld deposition.
- a product main body is molded by means of casting for example. Then, a defect caused by molding is generated on a surface to be treated of the product main body. Next, a peripheral portion of the defect including the defect is removed by grinding so that a recess portion is formed on the portion to be treated of the product main body. Further, a weld deposition is formed at a recess portion periphery including the recess portion by means of welding.
- a recess portion is defined by a beveling portion of one of the metal components and another beveling portion of the other of the metal components by means of butting the pair of the metal components. Then, a weld deposition is formed at a recess portion periphery including the recess portion by means of welding.
- the weld deposition is formed by means of welding, in other words, because the weld deposition in an elevated temperature state is in an instant or in a short time formed at the recess portion periphery, the temperature of the recess portion periphery drastically increases. Thereby, thermal deformation at the recess portion periphery becomes great and there are problems that it gives rise to poor quality in production of the metal product or poor quality in joining of the pair of the metal components.
- a first feature of the present invention is a method for production of the metal component and provision with a molding step of molding a product main body; a defect removal step of removing a defect periphery including a defect generated on a surface to be treated of the product main body by molding after finishing the molding step so that a recess portion is formed on the surface to be treated of the product main body; and a deposition step of gradually forming a deposition at a recess portion periphery after finishing the defect removal step by 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, diffusion and/or welding at the recess portion periphery by energy of the
- a second feature of the present invention is a method for joining a pair of metal components and provision with a butting step of defining a recess portion by a beveling portion of one of the metal components and another beveling portion of the other of the metal components by means of butting the pair of the metal components; and a deposition step of gradually forming a deposition at a recess portion periphery after finishing the butting step by 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, diffusion and/or welding at the recess portion periphery by energy of the electric discharge.
- FIG. 1 A drawing showing an electric spark machine in accordance with a first embodiment.
- FIG. 2 A partial cross sectional view of a cylinder in accordance with the first embodiment.
- FIG. 3 A drawing explaining a production method of a metal product in accordance with the first embodiment.
- FIG. 4 A drawing explaining a production method of a metal product in accordance with the first embodiment.
- FIG. 5 A drawing explaining a production method of a metal product in accordance with the first embodiment.
- FIG. 6 A drawing explaining a production method of a metal product in accordance with the first embodiment.
- FIG. 7 A drawing explaining a production method of a metal product in accordance with the first embodiment.
- FIG. 8 A partial cross sectional view of a cylinder in accordance with a second embodiment.
- FIG. 9 A drawing explaining a production method of a metal product in accordance with the second embodiment.
- FIG. 10 A drawing explaining a production method of a metal product in accordance with the second embodiment.
- FIG. 11 A drawing explaining a production method of a metal product in accordance with the second embodiment.
- FIG. 12 A drawing explaining a production method of a metal product in accordance with the second embodiment.
- FIG. 13 A drawing explaining a production method of a metal product in accordance with the second embodiment.
- FIG. 14 A partial cross sectional view of a cylinder in accordance with a third embodiment.
- FIG. 15 A drawing explaining a production method of a metal product in accordance with the third embodiment.
- FIG. 16 A drawing explaining a production method of a metal product in accordance with the third embodiment.
- FIG. 17 A drawing explaining a production method of a metal product in accordance with the third embodiment.
- FIG. 18 A partial cross sectional view of a joint structure in accordance with a fourth embodiment.
- FIG. 19 A drawing explaining a joining method of a metal product in accordance with the fourth embodiment.
- FIG. 20 A drawing explaining a joining method of a metal product in accordance with the fourth embodiment.
- FIG. 21 A drawing explaining a joining method of a metal product in accordance with the fourth embodiment.
- a cross direction is referred to as an X-axis direction
- a horizontal direction is referred to as a Y-axis direction
- a vertical direction is referred to as a Z-axis direction.
- FIG. 1 An electric spark machine 1 applied to a production method of a metal product in accordance with a first embodiment of the present invention will be described hereinafter with reference to FIG. 1 .
- the electric spark machine 1 is provided with a bed 3 extending in an X-axis direction and a Y-axis direction and a column 5 extending in an Z-axis. Further, the bed 3 is provided with a table 7 and the table 7 is movable in the X-axis direction by means of a drive of an X-axis servo-motor and movable in the Y-axis direction by means of a drive of a Y-axis servo-motor.
- the table 7 is provided with a processing tank 13 for reserving an electrically insulating liquid S such as oil and, in the processing tank 13 , a support plate 15 is provided.
- the support plate 15 is provided with a jig 17 to which a metal product or such described later is capable of being set. Meanwhile, the jig 17 is electrically connected to an electric power source 19 via the support plate 15 and a concrete constitution of the jig 17 is changeable depending on the metal product and such.
- the column 5 is provided with a processing head 21 and the processing head 21 is movable in a Z-axis direction by means of a drive of a Z-axis servo-motor.
- the processing head 21 when the table 7 is moved in the X-axis direction by means of the drive of the X-axis servo-motor, the processing head 21 is capable of moving in the X-axis direction relative to the table 7 .
- the processing head 21 is capable of moving in the Y-axis direction relative to the table 7 .
- the processing head 21 is provided with a first holder 29 for supporting a molded electrode 25 or a molded electrode 27 and, in the vicinity of the first holder 29 in the processing head 21 , a second holder 33 for supporting a hard electrode 31 having exhaustion resistance is provided.
- the first holder 29 and the second holder 33 are electrically connected to the electric power source 19 .
- concrete constitutions of the molded electrodes 25 , 27 will be described later.
- the cylinder 35 as the metal component in accordance with the first embodiment is one of constituent elements of a gas turbine and provided with a cylinder main body 37 as a product main body. Further, at an outer peripheral surface of the cylinder main body 37 , a recess portion 39 is formed by means of energy of an electric discharge and, at a recess portion periphery 39 ′ including the recess portion 39 , a deposition 41 is formed by means of energy of an electric discharge. Meanwhile, details of the recess portion 39 and the deposition 41 will be described later.
- the production method of the metal product in accordance with the first embodiment is a method for producing the cylinder 35 as the metal component and employs the electric spark machine 1 , the molded electrode 25 , the hard electrode 31 and a heat treatment furnace 43 shown in FIG. 7 .
- the molded electrode 25 is a molded body molded from powder of a material having the same composition as a base material of the cylinder main body 37 , powder of a material having a similar composition to the base material of the cylinder main body 37 , or powder of a material having a coefficient of thermal expansion close to a coefficient of thermal expansion of the base material of the cylinder main body 37 by means of compression by pressing; or the molded body subject to a heat treatment by a vacuum furnace or such.
- the base material of the cylinder 37 is, for example, an alloy of AMS (Aerospace Material Specifications) No. 5662
- various nickel alloys become the material having the similar composition and cobalt or cobalt alloys become the material having the coefficient of the thermal expansion close thereto.
- the electrode 25 instead of molding by compressing, the electrode 25 may be formed by slurry pouring, MIM (Metal Injection Molding), spray forming and such.
- the hard electrode 31 is composed of a solid substance of graphite, tungsten alloys, or copper alloys.
- the production method of the metal product in accordance with the first embodiment is provided with a (1-1) molding step, a (1-2) defect removal step, a (1-3) deposition step, a (1-4) excessive deposition removal step and a (1-5) heat treatment step.
- the cylinder main body 37 as the product main body is molded by means of casting by using a not-shown casting mold. Meanwhile, as shown in FIG. 3 , casting cavities D caused by molding, as a type of defects, are generated on a peripheral surface of the cylinder main body 37 as a surface to be treated.
- the cylinder main body 37 is set to the jig 17 .
- the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylinder main body 37 so that a casting cavity periphery D′ as a defect periphery including the casting cavities D is opposed to the hard electrode 31 .
- the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction.
- a pulsing electric discharge is generated between the casting cavity periphery D′ and the hard electrode 31 .
- the casting cavities D are removed and a recess portion 39 can be formed on the peripheral surface of the cylinder main body 37 .
- the electrode when generating the pulsing discharge, the electrode, as being integral with the processing head 21 , is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23 .
- the table 7 After finishing the (1-2) defect removal step, by means of driving the X-axis servo-motor 9 and the Y-axis servo-motor 11 , the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylinder main body 37 so that a recess portion periphery 39 ′ is opposed to the molded electrode 25 . Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction.
- a pulsing electric discharge is generated between the recess portion periphery 39 ′ and the molded electrode 25 in an electrically insulating liquid S.
- a material of the molded electrode 25 or a reaction substance of the material carries out deposition, diffusion and/or welding at the recess portion periphery 39 ′ and thereby a deposit ion 41 can be gradually formed at the recess portion periphery 39 ′.
- the molded electrode 25 when generating the pulsing discharge, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23 .
- deposition, diffusion and/or welding means all meanings including “desposition”, “diffusion”, “welding”, “mixed phenomena of deposition and diffusion”, “mixed phenomena of deposition and welding”, “mixed phenomena of diffusion and welding” and “mixed phenomena of deposition, diffusion and welding”.
- dimensions of the deposition 41 are made to be greater than dimensions of the recess portion 39 .
- an outer periphery of the deposition 41 is made to spread outward in 0.5 mm or more relative to an outer periphery of the recess portion 39 and a thickness of the deposition 41 is made to be thicker in 0.3 mm or more than a thickness required to filling the recess portion 39 . Thereby diffusion bonding among particles at the interior of the deposition 41 can be generated.
- the table 7 After finishing the (1-3) deposition step, by means of driving the X-axis servo-motor 9 and the Y-axis servo-motor 11 , the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylinder main body 37 so that the deposition 41 is opposed to the hard electrode 31 . Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction.
- a pulsing electric discharge is generated between the deposition 41 and the hard electrode 31 in an electrically insulating liquid S.
- a thin film 41 a composed of a structure of high density can be generated as well as the excessive deposition 41 f can be removed.
- the hard electrode 31 is moved in the X-axis direction relative to the cylinder main body 37 and the hard electrode 31 , as being integral with the processing head 21 , is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23 .
- the cylinder main body 37 is removed from the jig 17 and set at a predetermined position of the heat treatment furnace 43 . Further, as shown in FIG. 7 , the deposition 41 accompanying the cylinder main body 37 is kept at a high temperature in a vacuum or in the air by means of the heat treatment furnace 43 . Thereby, a heat treatment can be processed with respect to the deposition 41 so as to progress diffusion bonding among the particles at the interior of the deposition 41 and the production of the cylinder 35 as the metal product is finished.
- the temperature and the period of time are 20 minutes at a high temperature of 1050 degrees C. and subsequently 4 hours at a high temperature of 760 degrees C. in a case where the deposition 41 is composed of a nickel alloy or a cobalt alloy.
- the (1-4) excessive deposition removal step or the (1-5) heat treatment step can be omitted from the series of the steps in the production method of the metal production in accordance with the first embodiment or step orders of the (1-4) excessive deposition removal step and the (1-5) heat treatment step can be interchanged.
- a pulsing discharge may be generated in an electrically insulating gas.
- the casting cavity periphery D′ may be removed or the excessive deposition 41 f may be removed.
- any defect periphery including defects such as cracks may be removed.
- a boundary part between the deposition 41 and a base material of the cylinder main body 37 has a structure in which a composition ratio grades and hence the deposition 41 can be firmly combined with the cylinder main body 37 .
- the dimensions of the deposition 41 formed at the (1-3) deposition step are made to be greater than the dimensions of the recess portion 39 , a porous structure is not left in a surface side of the deposition 41 after the (1-4) deposition step.
- the deposition 41 can be firmly combined with the cylinder main body 37 , the deposition 41 becomes unsusceptible to peeling off from the base material of the cylinder main body 37 and hence quality of the cylinder 35 can be stabilized.
- the tensile strength of the deposition 41 can be increased, a mechanical strength of the recess portion periphery 39 ′ in the cylinder main body 37 can be increased.
- the deposition 41 has the thin film 41 a composed of the structure of high density, permeation of fluid out of the interior of the cylinder 35 can be suppressed.
- a cylinder 45 as a metal component which is a subject of a production method of a metal product in accordance with a second embodiment will be briefly described hereinafter with reference to FIG. 8 .
- the cylinder 45 as the metal component in accordance with the second embodiment is, as similar to the cylinder 35 in accordance with the first embodiment, provided with a cylinder main body 37 as a product main body and, at an outer peripheral surface of the cylinder main body 37 , a recess portion 39 is formed by means of energy of an electric discharge. Further, at a recess portion periphery 39 ′ including the recess portion 39 , a deposition group 49 constituted of two layers of depositions 47 is formed by means of energy of an electric discharge. Meanwhile, details of the deposition group 49 will be described later.
- the production method of the metal product in accordance with the second embodiment is a method for producing the cylinder 45 as the metal component and employs the electric spark machine 1 , the molded electrode 25 , the hard electrode 31 and the heat treatment furnace 43 as described above.
- the production method of the metal product in accordance with the second embodiment is provided with a (2-1) molding step, a (2-2) defect removal step, a first deposition step, a (2-4) thin film step, a (2-5) second deposition step, a (2-6) excessive deposition removal step and a (2-7) heat treatment step.
- This step is carried out in the same manner as the aforementioned (1-1) molding step. (see FIG. 3 )
- This step is carried out in the same manner as the aforementioned (1-2) defect removal step. (see FIG. 4 )
- the table 7 After finishing the (2-2) defect removal step, by means of driving the X-axis servo-motor 9 and the Y-axis servo-motor 11 , the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylinder main body 37 so that the recess portion periphery 39 ′ is opposed to the molded electrode 25 . Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction.
- a pulsing electric discharge is generated between the recess portion periphery 39 ′ and the molded electrode 25 in an electrically insulating liquid S.
- a material of the molded electrode 25 or a reaction substance of the material carries out deposition, diffusion and/or welding at the recess portion periphery 39 ′ and thereby the deposition 47 can be gradually formed at the recess portion periphery 39 ′.
- the molded electrode 25 when generating the pulsing discharge, the molded electrode 25 , as being integral with the processing head 21 , is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23 .
- the table 7 After finishing the (2-3) first deposition step, by means of driving the X-axis servo-motor 9 and the Y-axis servo-motor 11 , the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylinder main body 37 so that the deposition 47 is opposed to the hard electrode 31 . Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction.
- a pulsing electric discharge is generated between the deposition 47 and the hard electrode 31 in an electrically insulating liquid S.
- a surface of the deposition is melted by means of energy of the electric discharge and a thin film 47 a composed of a structure of high density can be generated on the surface of the deposition 47 .
- the hard electrode 31 is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23 .
- the table 7 After finishing the (2-4) thin film step, by means of driving the X-axis servo-motor 9 and the Y-axis servo-motor 11 , the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylinder main body 37 so that the thin film 47 a in the deposition 47 is opposed to the molded electrode 25 . Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction.
- a pulsing electric discharge is generated between the thin film 47 a in the deposition 47 and the molded electrode 25 in an electrically insulating liquid S.
- a material of the molded electrode 25 or a reaction substance of the material carries out deposition, diffusion and/or welding at the thin film 47 a in the deposition 47 and thereby a deposition group 49 constituted of two layers of the depositions 47 can be gradually formed at the recess portion 39 .
- the molded electrode 25 when generating the pulsing discharge, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23 .
- dimensions of the deposition group 49 formed at the (2-5) second deposition step are made to be greater than dimensions of the recess portion 39 .
- an outer periphery of the deposition group 49 is made to spread outward in 0.5 mm or more relative to an outer periphery of the recess portion 39 and a thickness of the deposition group 49 is made to be thicker in 0.3 mm or more than a thickness required to filling the recess portion 39 .
- a part of the deposition group 49 becomes an excessive deposition 49 f sticking out of the recess portion 39 . Thereby diffusion bonding among particles at the interior of the deposition group 49 can be generated.
- the table 7 After finishing the (2-5) second deposition step, by means of driving the X-axis servo-motor 9 and the Y-axis servo-motor 11 , the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylinder main body 37 so that the deposition group 49 is opposed to the hard electrode 31 . Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction.
- a pulsing electric discharge is generated between the deposition group 49 and the hard electrode 31 in an electrically insulating liquid S.
- a thin film 49 a composed of a structure of high density can be generated as well as the excessive deposition 49 f can be removed.
- the hard electrode 31 is moved in the X-axis direction relative to the cylinder main body 37 and the hard electrode 31 , as being integral with the processing head 21 , is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23 .
- the cylinder main body 37 is removed from the jig 17 and set at a predetermined position of the heat treatment furnace 43 . Further, as shown in FIG. 13 , the deposition group 49 accompanying the cylinder main body 37 is kept at a high temperature in a vacuum or in the air by means of the heat treatment furnace 43 . Thereby, a heat treatment can be processed with respect to the deposition group 49 so as to progress diffusion bonding among the particles at the interior of the deposition group 49 and the production of the cylinder 45 as the metal product is finished.
- the temperature and the period of time are 20 minutes at a high temperature of 1050 degrees C. and subsequently 4 hours at a high temperature of 760 degrees C. in a case where the deposition group 49 is composed of a nickel alloy or a cobalt alloy.
- the (2-6) excessive deposition removal step or the (2-7) heat treatment step can be omitted from the series of the steps in the production method of the metal production in accordance with the second embodiment or step orders of the (2-6) excessive deposition removal step and the (2-7) heat treatment step can be interchanged.
- a pulsing discharge may be generated in an electrically insulating gas.
- the casing cavity periphery D′ may be removed or the excessive 49 f may be removed.
- any defect periphery including defects such as cracks may be removed.
- the deposition group 49 is formed by means of the energy of the electric discharge, a boundary part between the deposit ion group 49 and a base material of the cylinder main body 37 has a structure in which a composition ratio grades and hence the deposition group 49 can be firmly combined with the cylinder main body 37 .
- the deposition group 49 can be firmly combined with the cylinder main body 37 , the deposition group 49 becomes unsusceptible to peeling off from the base material of the cylinder main body 37 and hence quality of the cylinder 45 can be stabilized.
- the tensile strength of the deposition group 49 can be increased, a mechanical strength of the recess portion periphery 39 ′ in the cylinder main body 37 can be increased.
- the deposition group 49 has the thin films 47 a , 49 a composed of the structures of high density, permeation of fluid out of the interior of the cylinder 45 can be suppressed.
- a cylinder 51 as a metal component which is a subject of a production method of a metal product in accordance with a third embodiment will be briefly described hereinafter with reference to FIG. 14 .
- the cylinder 51 as the metal component in accordance with the second embodiment is, as similar to the cylinder 35 in accordance with the first embodiment and the cylinder 45 in accordance with the second embodiment, provided with a cylinder main body 37 as a product main body and, at an outer peripheral surface of the cylinder main body 37 , a recess portion 39 is formed by means of energy of an electric discharge. Further, at a recess portion periphery 39 ′ including the recess portion 39 , a deposition group 53 constituted of plural layers of depositions 47 is formed by means of energy of an electric discharge. Meanwhile, details of the deposition group 53 will be described later.
- the production method of the metal product in accordance with the third embodiment is a method for producing the cylinder 51 as the metal component and employs the electric spark machine 1 , the molded electrode 25 , the hard electrode 31 and the heat treatment furnace 43 as described above.
- the production method of the metal product in accordance with the third embodiment is provided with a (3-1) molding step, a (3-2) defect removal step, a (3-3) deposition step, a (3-4) thin film step, a (3-5) repetition step, an (3-6) excessive deposition removal step and a (3-7) heat treatment step.
- This step is carried out in the same manner as the aforementioned (1-1) molding step. (see FIG. 3 )
- This step is carried out in the same manner as the aforementioned (1-2) defect removal step. (see FIG. 4 )
- This step is carried out in the same manner as the aforementioned (2-3) first deposition step. (see FIG. 9 )
- This step is carried out in the same manner as the aforementioned (2-4) thin film step. (see FIG. 10 )
- the (3-3) deposition step and the (3-4) thin film step are alternately repeated.
- thin films 47 a are generated on the surfaces of the respective layers of the depositions 47 and the deposition group 53 composed of the plural layers of the depositions 47 can be formed at the recess portion 39 by means of energy of the electric discharge.
- dimensions of the deposition group 53 formed at the (3-5) repetition step are made to be greater than dimensions of the recess portion 39 .
- an outer periphery of the deposition group 53 is made to spread outward in 0.5 mm or more relative to an outer periphery of the recess portion 39 and a thickness of the deposition group 53 is made to be thicker in 0.3 mm or more than a thickness required to filling the recess portion 39 . Thereby diffusion bonding among particles at the interior of the deposition group 53 can be generated.
- a part of the deposition group 53 becomes an excessive deposition 53 f sticking out of the recess portion 39 . Thereby diffusion bonding among particles at the interior of the deposition group 53 can be generated.
- the table 7 After finishing the (3-5) repetition step, by means of driving the X-axis servo-motor 9 and the Y-axis servo-motor 11 , the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylinder main body 37 so that the deposition group 53 is opposed to the hard electrode 31 . Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction.
- a pulsing electric discharge is generated between the deposition group 53 and the hard electrode 31 in an electrically insulating liquid S.
- a thin film 53 a composed of a structure of high density can be generated as well as the excessive deposition 53 f can be removed.
- the hard electrode 31 is moved in the X-axis direction relative to the cylinder main body 37 and the hard electrode 31 , as being integral with the processing head 21 , is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23 .
- the cylinder main body 37 is removed from the jig 17 and set at a predetermined position of the heat treatment furnace 43 . Further, as shown in FIG. 17 , the deposition group 53 accompanying the cylinder main body 37 is kept at a high temperature in a vacuum or in the air by means of the heat treatment furnace 43 . Thereby, a heat treatment can be processed with respect to the deposition group 53 so as to progress diffusion bonding among the particles at the interior of the deposition group 53 and the production of the cylinder 51 as the metal product is finished.
- the temperature and the period of time are 20 minutes at a high temperature of 1050 degrees C. and subsequently 4 hours at a high temperature of 760 degrees C. in a case where the deposition group 53 is composed of a nickel alloy or a cobalt alloy.
- the (3-6) excessive deposition removal step or the (3-7) heat treatment step can be omitted from the series of the steps in the production method of the metal production in accordance with the second embodiment or steps orders of the (3-6) excessive deposition removal step and the (3-7) heat treatment step can be interchanged.
- a pulsing discharge may be generated in an electrically insulating gas.
- the casing cavity periphery D′ may be removed or the excessive 53 f may be removed.
- any defect periphery including defects such as cracks may be removed.
- a boundary part between the deposition group 53 and a base material of the cylinder main body 37 has a structure in which a composition ratio grades and hence the deposition group 53 can be firmly combined with the cylinder main body 37 .
- the deposition group 53 can be firmly combined with the cylinder main body 37 , the deposition group 53 becomes unsusceptible to peeling off from the base material of the cylinder main body 37 and hence quality of the cylinder 51 can be stabilized.
- the tensile strength of the deposition group 53 can be increased, a mechanical strength of the recess portion periphery 39 ′ in the cylinder main body 37 can be increased.
- the deposition group 53 has the thin films 47 a , 53 a composed of the structures of high density, permeation of fluid out of the interior of the cylinder 51 can be suppressed.
- a joint structure 55 in accordance with a fourth embodiment will be described hereinafter with reference to FIG. 18 .
- the joint structure 55 is provided with a pair of metal components 57 , 59 which are butted with each other and, in this condition, joined with each other and the pair of the metal component 57 , 59 are respectively provided with beveling portions 57 a , 57 b .
- a recess portion 61 is defined by the beveling portion 57 a of the metal component 57 and the beveling portion 59 a of the other metal component 59 and a deposition 63 is formed at a recess portion periphery 61 ′ including the recess portion 61 by energy of the electric discharge. Further, the deposition 63 is gradually formed by employing the molded electrode 27 shown in FIG.
- the molded electrode 27 is composed of a molded body molded from powder of a material having the same composition as the metal components 57 , 59 , powder of a material having the similar composition to the metal components 57 , 59 , or powder of a material having a coefficient of thermal expansion close to a coefficient of thermal expansion of a base material of the metal component 57 , 59 by means of compression by pressing; or the molded body subject to a heat treatment by a vacuum furnace or such.
- the base material of the metal component 57 , 59 is a stainless alloy of iron including 18% of chromium and 8% of nickel
- another stainless steels having different contents become the material having the similar composition and cobalt or cobalt alloys become the material having the coefficient of the thermal expansion close thereto.
- the molded electrode 27 may be formed by slurry pouring, MIM (Metal Injection Molding), spray forming and such.
- the joining method of the metal components in accordance with the fourth embodiment is a method for joining the pair of the metal components 57 , 59 and employing the electric spark machine 1 , the molded electrode 27 and the heat treatment furnace 43 as described above. Further, the joining method of the metal components in accordance with the fourth embodiment is provided with a (4-1) butting step, a (4-2) deposition step, and a (4-3) heat treatment step as described below.
- the pair of the metal components 57 , 59 are set to the jig 17 so that the pair of the metal components 57 , 59 are butted with each other.
- the recess portion 61 is defined by the beveling portion 57 a of the metal component 57 and the beveling portion 59 a of the other metal component 59 as shown in FIG. 19 .
- the table 7 After finishing the (4-1) butting step, by means of driving the X-axis servo-motor 9 and the Y-axis servo-motor 11 , the table 7 is moved in the X-axis direction and the Y-axis direction to position the pair of the metal components 57 , 59 so that the recess portion periphery 61 ′ is opposite to the molded electrode 27 . Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction.
- a pulsing electric discharge is generated between the recess portion periphery 61 ′ and the molded electrode 27 in an electrically insulating liquid S.
- a material of the molded electrode 27 or a reaction substance of the material carries out deposition, diffusion and/or welding at the recess portion periphery 61 ′ and thereby a deposition 63 can be gradually formed at the recess portion periphery 61 ′.
- the molded electrode 27 when generating the pulsing discharge, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23 .
- dimensions of the deposition 63 are made to be greater than dimensions of the recess portion 61 .
- an outer periphery of the deposition 63 is made to spread outward in 0.5 mm or more relative to an outer periphery of the recess portion 61 and a thickness of the deposition 63 is made to be thicker in 0.3 mm or more than a thickness required to filling the recess portion 61 . Thereby diffusion bonding among particles at the interior of the deposition 63 can be generated.
- the pair of the metal components 57 , 59 are removed from the jig 17 and set at a predetermined position of the heat treatment furnace 43 . Further, the deposition 63 accompanying the pair of the metal components 57 , 59 is kept at a high temperature in a vacuum or in the air by means of the heat treatment furnace 43 . Thereby, a heat treatment can be processed with respect to the deposition 63 so as to progress diffusion bonding among the particles at the interior of the deposition 63 and joining of the pair of the metal components 57 , 59 is finished.
- the temperature and the period of time are 20 minutes at a high temperature of 1050 degrees C. and subsequently 4 hours at a high temperature of 760 degrees C. in a case where the deposition 63 is composed of a nickel alloy or a cobalt alloy.
- the (4-3) heat treatment step can be omitted from the series of the steps in the joining method of the metal components in accordance with the fourth embodiment.
- an excessive deposition may be removed.
- a pulsing discharge may be generated in an electrically insulating gas.
- a boundary part between the deposition 63 and a base material of the metal components 57 , 59 has a structure in which a composition ratio grades and hence the deposition 63 can be firmly combined with the metal components 57 , 59 .
- the deposition 63 can be firmly combined with the metal components 57 , 59 and the tensile strength of the deposition 63 can be increased, the condition of the joint between the pair of the metal components 57 , 59 comes to be firm, in other words, a mechanical strength of the joint structure 55 can be increased.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
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.
Description
- This application is a divisional of U.S. Ser. No. 10/560,070 filed Dec. 9, 2005, which is a National Stage of the International Application PCT/JP04/08212, filed Jun. 11, 2004, which claims priority to Japanese Application Nos. 2003-167025 and 2003-167074, both filed Jun. 11, 2003, the entire content of each is incorporated herein by reference.
- The present invention relates to a production method of a metal product, a metal product, a connection method of metal components and a connection structure.
- A series of steps for producing a metal product such as a cylinder and a series of steps for joining a pair of metal components respectively having beveling portions respectively include a step of forming a weld deposition.
- More specifically, in a case of producing the metal product, first, a product main body is molded by means of casting for example. Then, a defect caused by molding is generated on a surface to be treated of the product main body. Next, a peripheral portion of the defect including the defect is removed by grinding so that a recess portion is formed on the portion to be treated of the product main body. Further, a weld deposition is formed at a recess portion periphery including the recess portion by means of welding.
- Moreover, in a case of joining the pair of the metal components, first, a recess portion is defined by a beveling portion of one of the metal components and another beveling portion of the other of the metal components by means of butting the pair of the metal components. Then, a weld deposition is formed at a recess portion periphery including the recess portion by means of welding.
- In the meantime, because the weld deposition is formed by means of welding, in other words, because the weld deposition in an elevated temperature state is in an instant or in a short time formed at the recess portion periphery, the temperature of the recess portion periphery drastically increases. Thereby, thermal deformation at the recess portion periphery becomes great and there are problems that it gives rise to poor quality in production of the metal product or poor quality in joining of the pair of the metal components.
- For solving the aforementioned problems, a first feature of the present invention is a method for production of the metal component and provision with a molding step of molding a product main body; a defect removal step of removing a defect periphery including a defect generated on a surface to be treated of the product main body by molding after finishing the molding step so that a recess portion is formed on the surface to be treated of the product main body; and a deposition step of gradually forming a deposition at a recess portion periphery after finishing the defect removal step by 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, diffusion and/or welding at the recess portion periphery by energy of the electric discharge.
- A second feature of the present invention is a method for joining a pair of metal components and provision with a butting step of defining a recess portion by a beveling portion of one of the metal components and another beveling portion of the other of the metal components by means of butting the pair of the metal components; and a deposition step of gradually forming a deposition at a recess portion periphery after finishing the butting step by 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, diffusion and/or welding at the recess portion periphery by energy of the electric discharge.
-
FIG. 1 A drawing showing an electric spark machine in accordance with a first embodiment. -
FIG. 2 A partial cross sectional view of a cylinder in accordance with the first embodiment. -
FIG. 3 A drawing explaining a production method of a metal product in accordance with the first embodiment. -
FIG. 4 A drawing explaining a production method of a metal product in accordance with the first embodiment. -
FIG. 5 A drawing explaining a production method of a metal product in accordance with the first embodiment. -
FIG. 6 A drawing explaining a production method of a metal product in accordance with the first embodiment. -
FIG. 7 A drawing explaining a production method of a metal product in accordance with the first embodiment. -
FIG. 8 A partial cross sectional view of a cylinder in accordance with a second embodiment. -
FIG. 9 A drawing explaining a production method of a metal product in accordance with the second embodiment. -
FIG. 10 A drawing explaining a production method of a metal product in accordance with the second embodiment. -
FIG. 11 A drawing explaining a production method of a metal product in accordance with the second embodiment. -
FIG. 12 A drawing explaining a production method of a metal product in accordance with the second embodiment. -
FIG. 13 A drawing explaining a production method of a metal product in accordance with the second embodiment. -
FIG. 14 A partial cross sectional view of a cylinder in accordance with a third embodiment. -
FIG. 15 A drawing explaining a production method of a metal product in accordance with the third embodiment. -
FIG. 16 A drawing explaining a production method of a metal product in accordance with the third embodiment. -
FIG. 17 A drawing explaining a production method of a metal product in accordance with the third embodiment. -
FIG. 18 A partial cross sectional view of a joint structure in accordance with a fourth embodiment. -
FIG. 19 A drawing explaining a joining method of a metal product in accordance with the fourth embodiment. -
FIG. 20 A drawing explaining a joining method of a metal product in accordance with the fourth embodiment. -
FIG. 21 A drawing explaining a joining method of a metal product in accordance with the fourth embodiment. - A description will be hereinafter given to certain embodiments of the present invention for describing the present invention in further detail with appropriate reference to the accompanying drawings. Meanwhile, in the description, in proper, “a cross direction” is referred to as an X-axis direction, “a horizontal direction” is referred to as a Y-axis direction and “a vertical direction” is referred to as a Z-axis direction.
- An electric spark machine 1 applied to a production method of a metal product in accordance with a first embodiment of the present invention will be described hereinafter with reference to
FIG. 1 . - The electric spark machine 1 is provided with a
bed 3 extending in an X-axis direction and a Y-axis direction and a column 5 extending in an Z-axis. Further, thebed 3 is provided with a table 7 and the table 7 is movable in the X-axis direction by means of a drive of an X-axis servo-motor and movable in the Y-axis direction by means of a drive of a Y-axis servo-motor. - The table 7 is provided with a
processing tank 13 for reserving an electrically insulating liquid S such as oil and, in theprocessing tank 13, asupport plate 15 is provided. Thesupport plate 15 is provided with ajig 17 to which a metal product or such described later is capable of being set. Meanwhile, thejig 17 is electrically connected to anelectric power source 19 via thesupport plate 15 and a concrete constitution of thejig 17 is changeable depending on the metal product and such. - The column 5 is provided with a
processing head 21 and theprocessing head 21 is movable in a Z-axis direction by means of a drive of a Z-axis servo-motor. Here, when the table 7 is moved in the X-axis direction by means of the drive of the X-axis servo-motor, theprocessing head 21 is capable of moving in the X-axis direction relative to the table 7. Moreover, when the table 7 is moved in the Y-axis direction by means of the drive of the Y-axis servo-motor, theprocessing head 21 is capable of moving in the Y-axis direction relative to the table 7. - Further, the
processing head 21 is provided with a first holder 29 for supporting a moldedelectrode 25 or a moldedelectrode 27 and, in the vicinity of the first holder 29 in theprocessing head 21, asecond holder 33 for supporting ahard electrode 31 having exhaustion resistance is provided. The first holder 29 and thesecond holder 33 are electrically connected to theelectric power source 19. Moreover, concrete constitutions of the moldedelectrodes - Next, a
cylinder 35 as a metal component which is a subject of the production method of the metal product in accordance with the first embodiment will be described hereinafter with reference toFIG. 2 . - The
cylinder 35 as the metal component in accordance with the first embodiment is one of constituent elements of a gas turbine and provided with a cylindermain body 37 as a product main body. Further, at an outer peripheral surface of the cylindermain body 37, arecess portion 39 is formed by means of energy of an electric discharge and, at arecess portion periphery 39′ including therecess portion 39, adeposition 41 is formed by means of energy of an electric discharge. Meanwhile, details of therecess portion 39 and thedeposition 41 will be described later. - Next, the production method of the metal product in accordance with the first embodiment will be described hereinafter with reference to from
FIG. 1 toFIG. 7 . - The production method of the metal product in accordance with the first embodiment is a method for producing the
cylinder 35 as the metal component and employs the electric spark machine 1, the moldedelectrode 25, thehard electrode 31 and aheat treatment furnace 43 shown inFIG. 7 . - Here, the molded
electrode 25 is a molded body molded from powder of a material having the same composition as a base material of the cylindermain body 37, powder of a material having a similar composition to the base material of the cylindermain body 37, or powder of a material having a coefficient of thermal expansion close to a coefficient of thermal expansion of the base material of the cylindermain body 37 by means of compression by pressing; or the molded body subject to a heat treatment by a vacuum furnace or such. - Meanwhile, in a case where the base material of the
cylinder 37 is, for example, an alloy of AMS (Aerospace Material Specifications) No. 5662, various nickel alloys become the material having the similar composition and cobalt or cobalt alloys become the material having the coefficient of the thermal expansion close thereto. Meanwhile, instead of molding by compressing, theelectrode 25 may be formed by slurry pouring, MIM (Metal Injection Molding), spray forming and such. - Moreover, the
hard electrode 31 is composed of a solid substance of graphite, tungsten alloys, or copper alloys. - Further, the production method of the metal product in accordance with the first embodiment is provided with a (1-1) molding step, a (1-2) defect removal step, a (1-3) deposition step, a (1-4) excessive deposition removal step and a (1-5) heat treatment step.
- The cylinder
main body 37 as the product main body is molded by means of casting by using a not-shown casting mold. Meanwhile, as shown inFIG. 3 , casting cavities D caused by molding, as a type of defects, are generated on a peripheral surface of the cylindermain body 37 as a surface to be treated. - After finishing the (1-1) molding step, the cylinder
main body 37 is set to thejig 17. Next, by means of driving the X-axis servo-motor 9 and the Y-axis servo-motor 11, the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylindermain body 37 so that a casting cavity periphery D′ as a defect periphery including the casting cavities D is opposed to thehard electrode 31. Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction. - Further, a pulsing electric discharge is generated between the casting cavity periphery D′ and the
hard electrode 31. Thereby, as shown inFIG. 4 , by means of energy of the electric discharge, the casting cavities D are removed and arecess portion 39 can be formed on the peripheral surface of the cylindermain body 37. Meanwhile, when generating the pulsing discharge, the electrode, as being integral with theprocessing head 21, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23. - After finishing the (1-2) defect removal step, by means of driving the X-axis servo-
motor 9 and the Y-axis servo-motor 11, the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylindermain body 37 so that arecess portion periphery 39′ is opposed to the moldedelectrode 25. Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction. - Further, a pulsing electric discharge is generated between the
recess portion periphery 39′ and the moldedelectrode 25 in an electrically insulating liquid S. Thereby, as shown inFIG. 5 , by means of energy of the electric discharge, a material of the moldedelectrode 25 or a reaction substance of the material carries out deposition, diffusion and/or welding at therecess portion periphery 39′ and thereby adeposit ion 41 can be gradually formed at therecess portion periphery 39′. Meanwhile, when generating the pulsing discharge, the moldedelectrode 25, as being integral with theprocessing head 21, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23. - Meanwhile, “deposition, diffusion and/or welding” means all meanings including “desposition”, “diffusion”, “welding”, “mixed phenomena of deposition and diffusion”, “mixed phenomena of deposition and welding”, “mixed phenomena of diffusion and welding” and “mixed phenomena of deposition, diffusion and welding”.
- Here, dimensions of the
deposition 41 are made to be greater than dimensions of therecess portion 39. In concrete terms, an outer periphery of thedeposition 41 is made to spread outward in 0.5 mm or more relative to an outer periphery of therecess portion 39 and a thickness of thedeposition 41 is made to be thicker in 0.3 mm or more than a thickness required to filling therecess portion 39. Thereby diffusion bonding among particles at the interior of thedeposition 41 can be generated. - Meanwhile, a part of the
deposition 41 becomes anexcessive deposition 41 f sticking out of therecess portion 39. - After finishing the (1-3) deposition step, by means of driving the X-axis servo-
motor 9 and the Y-axis servo-motor 11, the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylindermain body 37 so that thedeposition 41 is opposed to thehard electrode 31. Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction. - Further, a pulsing electric discharge is generated between the
deposition 41 and thehard electrode 31 in an electrically insulating liquid S. Thereby, as shown inFIG. 6 , by means of energy of the electric discharge, athin film 41 a composed of a structure of high density can be generated as well as theexcessive deposition 41 f can be removed. Meanwhile, when generating the pulsing discharge, thehard electrode 31 is moved in the X-axis direction relative to the cylindermain body 37 and thehard electrode 31, as being integral with theprocessing head 21, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23. - After finishing the (1-4) excessive deposition removal step, the cylinder
main body 37 is removed from thejig 17 and set at a predetermined position of theheat treatment furnace 43. Further, as shown inFIG. 7 , thedeposition 41 accompanying the cylindermain body 37 is kept at a high temperature in a vacuum or in the air by means of theheat treatment furnace 43. Thereby, a heat treatment can be processed with respect to thedeposition 41 so as to progress diffusion bonding among the particles at the interior of thedeposition 41 and the production of thecylinder 35 as the metal product is finished. - Here, the temperature and the period of time are 20 minutes at a high temperature of 1050 degrees C. and subsequently 4 hours at a high temperature of 760 degrees C. in a case where the
deposition 41 is composed of a nickel alloy or a cobalt alloy. - Meanwhile, the production method of the metal product in accordance with the aforementioned first embodiment may be modified as in the following embodiment.
- More specifically, the (1-4) excessive deposition removal step or the (1-5) heat treatment step can be omitted from the series of the steps in the production method of the metal production in accordance with the first embodiment or step orders of the (1-4) excessive deposition removal step and the (1-5) heat treatment step can be interchanged.
- Moreover, instead of generating the pulsing discharge in the electrically insulating liquid S, a pulsing discharge may be generated in an electrically insulating gas.
- Furthermore, by using a grinding lathe instead of the electric spark machine 1, the casting cavity periphery D′ may be removed or the
excessive deposition 41 f may be removed. - Moreover, instead of removing the casting cavity periphery D′, any defect periphery including defects such as cracks may be removed.
- Next, operations of the first embodiment will be described.
- Because energy of the electric discharge locally acts on a prominently small part and the
deposit ion 41 is gradually formed by carrying out deposition, diffusion and/or welding of the material of the moldedelectrode 25 or such, a temperature of therecess portion periphery 39′ in the cylindermain body 37 is prevented from rapidly increasing at a time of producing thecylinder 35. - Moreover, because the
deposition 41 is formed by means of the energy of the electric discharge, a boundary part between thedeposition 41 and a base material of the cylindermain body 37 has a structure in which a composition ratio grades and hence thedeposition 41 can be firmly combined with the cylindermain body 37. - Furthermore, because the diffusion bonding among the particles at the interior of the
deposition 41 progresses, a tensile strength of thedeposition 41 can be increased. - Moreover, because the dimensions of the
deposition 41 formed at the (1-3) deposition step are made to be greater than the dimensions of therecess portion 39, a porous structure is not left in a surface side of thedeposition 41 after the (1-4) deposition step. - In accordance with the first embodiment as described above, because the temperature of the
recess portion periphery 39′ in the cylindermain body 37 is prevented from rapidly increasing at the time of producing thecylinder 35, thermal deformation of therecess portion periphery 39′ is sufficiently suppressed and hence defective production of thecylinder 35 is reduced to be almost none. - Moreover, because the
deposition 41 can be firmly combined with the cylindermain body 37, thedeposition 41 becomes unsusceptible to peeling off from the base material of the cylindermain body 37 and hence quality of thecylinder 35 can be stabilized. - Furthermore, because the tensile strength of the
deposition 41 can be increased, a mechanical strength of therecess portion periphery 39′ in the cylindermain body 37 can be increased. - Moreover, because the
deposition 41 has thethin film 41 a composed of the structure of high density, permeation of fluid out of the interior of thecylinder 35 can be suppressed. - A
cylinder 45 as a metal component which is a subject of a production method of a metal product in accordance with a second embodiment will be briefly described hereinafter with reference toFIG. 8 . - The
cylinder 45 as the metal component in accordance with the second embodiment is, as similar to thecylinder 35 in accordance with the first embodiment, provided with a cylindermain body 37 as a product main body and, at an outer peripheral surface of the cylindermain body 37, arecess portion 39 is formed by means of energy of an electric discharge. Further, at arecess portion periphery 39′ including therecess portion 39, adeposition group 49 constituted of two layers ofdepositions 47 is formed by means of energy of an electric discharge. Meanwhile, details of thedeposition group 49 will be described later. - Next, the production method of the metal product in accordance with the second embodiment will be described hereinafter with reference to
FIG. 1 ,FIG. 3 ,FIG. 4 and fromFIG. 9 toFIG. 13 . - The production method of the metal product in accordance with the second embodiment is a method for producing the
cylinder 45 as the metal component and employs the electric spark machine 1, the moldedelectrode 25, thehard electrode 31 and theheat treatment furnace 43 as described above. - Further, the production method of the metal product in accordance with the second embodiment is provided with a (2-1) molding step, a (2-2) defect removal step, a first deposition step, a (2-4) thin film step, a (2-5) second deposition step, a (2-6) excessive deposition removal step and a (2-7) heat treatment step.
- This step is carried out in the same manner as the aforementioned (1-1) molding step. (see
FIG. 3 ) - This step is carried out in the same manner as the aforementioned (1-2) defect removal step. (see
FIG. 4 ) - After finishing the (2-2) defect removal step, by means of driving the X-axis servo-
motor 9 and the Y-axis servo-motor 11, the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylindermain body 37 so that therecess portion periphery 39′ is opposed to the moldedelectrode 25. Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction. - Further, a pulsing electric discharge is generated between the
recess portion periphery 39′ and the moldedelectrode 25 in an electrically insulating liquid S. Thereby, as shown inFIG. 9 , by means of energy of the electric discharge, a material of the moldedelectrode 25 or a reaction substance of the material carries out deposition, diffusion and/or welding at therecess portion periphery 39′ and thereby thedeposition 47 can be gradually formed at therecess portion periphery 39′. Meanwhile, when generating the pulsing discharge, the moldedelectrode 25, as being integral with theprocessing head 21, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23. - After finishing the (2-3) first deposition step, by means of driving the X-axis servo-
motor 9 and the Y-axis servo-motor 11, the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylindermain body 37 so that thedeposition 47 is opposed to thehard electrode 31. Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction. - Further, a pulsing electric discharge is generated between the
deposition 47 and thehard electrode 31 in an electrically insulating liquid S. Thereby, as shown inFIG. 10 , a surface of the deposition is melted by means of energy of the electric discharge and athin film 47 a composed of a structure of high density can be generated on the surface of thedeposition 47. Meanwhile, when generating the pulsing discharge, thehard electrode 31, as being integral with theprocessing head 21, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23. - After finishing the (2-4) thin film step, by means of driving the X-axis servo-
motor 9 and the Y-axis servo-motor 11, the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylindermain body 37 so that thethin film 47 a in thedeposition 47 is opposed to the moldedelectrode 25. Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction. - Further, a pulsing electric discharge is generated between the
thin film 47 a in thedeposition 47 and the moldedelectrode 25 in an electrically insulating liquid S. Thereby, as shown inFIG. 11 , by means of energy of the electric discharge, a material of the moldedelectrode 25 or a reaction substance of the material carries out deposition, diffusion and/or welding at thethin film 47 a in thedeposition 47 and thereby adeposition group 49 constituted of two layers of thedepositions 47 can be gradually formed at therecess portion 39. Meanwhile, when generating the pulsing discharge, the moldedelectrode 25, as being integral with theprocessing head 21, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23. - Here, dimensions of the
deposition group 49 formed at the (2-5) second deposition step are made to be greater than dimensions of therecess portion 39. In concrete terms, an outer periphery of thedeposition group 49 is made to spread outward in 0.5 mm or more relative to an outer periphery of therecess portion 39 and a thickness of thedeposition group 49 is made to be thicker in 0.3 mm or more than a thickness required to filling therecess portion 39. Meanwhile, a part of thedeposition group 49 becomes anexcessive deposition 49 f sticking out of therecess portion 39. Thereby diffusion bonding among particles at the interior of thedeposition group 49 can be generated. - After finishing the (2-5) second deposition step, by means of driving the X-axis servo-
motor 9 and the Y-axis servo-motor 11, the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylindermain body 37 so that thedeposition group 49 is opposed to thehard electrode 31. Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction. - Further, a pulsing electric discharge is generated between the
deposition group 49 and thehard electrode 31 in an electrically insulating liquid S. Thereby, as shown inFIG. 12 , by means of energy of the electric discharge, athin film 49 a composed of a structure of high density can be generated as well as theexcessive deposition 49 f can be removed. Meanwhile, when generating the pulsing discharge, thehard electrode 31 is moved in the X-axis direction relative to the cylindermain body 37 and thehard electrode 31, as being integral with theprocessing head 21, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23. - After finishing the (2-6) excessive deposition removal step, the cylinder
main body 37 is removed from thejig 17 and set at a predetermined position of theheat treatment furnace 43. Further, as shown inFIG. 13 , thedeposition group 49 accompanying the cylindermain body 37 is kept at a high temperature in a vacuum or in the air by means of theheat treatment furnace 43. Thereby, a heat treatment can be processed with respect to thedeposition group 49 so as to progress diffusion bonding among the particles at the interior of thedeposition group 49 and the production of thecylinder 45 as the metal product is finished. - Here, the temperature and the period of time are 20 minutes at a high temperature of 1050 degrees C. and subsequently 4 hours at a high temperature of 760 degrees C. in a case where the
deposition group 49 is composed of a nickel alloy or a cobalt alloy. - Meanwhile, the production method of the metal product in accordance with the aforementioned first embodiment may be modified as in the following embodiment.
- More specifically, the (2-6) excessive deposition removal step or the (2-7) heat treatment step can be omitted from the series of the steps in the production method of the metal production in accordance with the second embodiment or step orders of the (2-6) excessive deposition removal step and the (2-7) heat treatment step can be interchanged.
- Moreover, instead of generating the pulsing discharge in the electrically insulating liquid S, a pulsing discharge may be generated in an electrically insulating gas.
- Furthermore, by using a grinding lathe instead of the electric spark machine 1, the casing cavity periphery D′ may be removed or the excessive 49 f may be removed.
- Moreover, instead of removing the casting cavity periphery D′, any defect periphery including defects such as cracks may be removed.
- Next, operations of the second embodiment will be described.
- Because energy of the electric discharge locally acts on a prominently small part and the
deposition group 49 is gradually formed by carrying out deposition, diffusion and/or welding of the material of the moldedelectrode 25 or such, a temperature of therecess portion periphery 39′ in the cylindermain body 37 is prevented from rapidly increasing at a time of producing thecylinder 45. - Moreover, because the
deposition group 49 is formed by means of the energy of the electric discharge, a boundary part between thedeposit ion group 49 and a base material of the cylindermain body 37 has a structure in which a composition ratio grades and hence thedeposition group 49 can be firmly combined with the cylindermain body 37. - Furthermore, because the diffusion boding among the particles at the interior of the
deposition group 49 progresses, a tensile strength of thedeposition group 49 can be increased. - In accordance with the second embodiment as described above, because the temperature of the
recess portion periphery 39′ in the cylindermain body 37 is prevented from rapidly increasing at the time of producing thecylinder 45, thermal deformation of therecess portion periphery 39′ is sufficiently suppressed and hence defective production of thecylinder 45 is reduced to be almost none. - Moreover, because the
deposition group 49 can be firmly combined with the cylindermain body 37, thedeposition group 49 becomes unsusceptible to peeling off from the base material of the cylindermain body 37 and hence quality of thecylinder 45 can be stabilized. - Furthermore, because the tensile strength of the
deposition group 49 can be increased, a mechanical strength of therecess portion periphery 39′ in the cylindermain body 37 can be increased. - Moreover, because the
deposition group 49 has thethin films cylinder 45 can be suppressed. - A
cylinder 51 as a metal component which is a subject of a production method of a metal product in accordance with a third embodiment will be briefly described hereinafter with reference toFIG. 14 . - The
cylinder 51 as the metal component in accordance with the second embodiment is, as similar to thecylinder 35 in accordance with the first embodiment and thecylinder 45 in accordance with the second embodiment, provided with a cylindermain body 37 as a product main body and, at an outer peripheral surface of the cylindermain body 37, arecess portion 39 is formed by means of energy of an electric discharge. Further, at arecess portion periphery 39′ including therecess portion 39, adeposition group 53 constituted of plural layers ofdepositions 47 is formed by means of energy of an electric discharge. Meanwhile, details of thedeposition group 53 will be described later. - Next, the production method of the metal product in accordance with the third embodiment will be described hereinafter with reference to
FIG. 1 ,FIG. 3 ,FIG. 4 ,FIG. 9 ,FIG. 10 and fromFIG. 15 toFIG. 17 . - The production method of the metal product in accordance with the third embodiment is a method for producing the
cylinder 51 as the metal component and employs the electric spark machine 1, the moldedelectrode 25, thehard electrode 31 and theheat treatment furnace 43 as described above. - Further, the production method of the metal product in accordance with the third embodiment is provided with a (3-1) molding step, a (3-2) defect removal step, a (3-3) deposition step, a (3-4) thin film step, a (3-5) repetition step, an (3-6) excessive deposition removal step and a (3-7) heat treatment step.
- This step is carried out in the same manner as the aforementioned (1-1) molding step. (see
FIG. 3 ) - This step is carried out in the same manner as the aforementioned (1-2) defect removal step. (see
FIG. 4 ) - This step is carried out in the same manner as the aforementioned (2-3) first deposition step. (see
FIG. 9 ) - This step is carried out in the same manner as the aforementioned (2-4) thin film step. (see
FIG. 10 ) - After finishing the (3-4) thin film step, the (3-3) deposition step and the (3-4) thin film step are alternately repeated. Thereby, as shown in
FIG. 15 ,thin films 47 a are generated on the surfaces of the respective layers of thedepositions 47 and thedeposition group 53 composed of the plural layers of thedepositions 47 can be formed at therecess portion 39 by means of energy of the electric discharge. - Here, dimensions of the
deposition group 53 formed at the (3-5) repetition step are made to be greater than dimensions of therecess portion 39. In concrete terms, an outer periphery of thedeposition group 53 is made to spread outward in 0.5 mm or more relative to an outer periphery of therecess portion 39 and a thickness of thedeposition group 53 is made to be thicker in 0.3 mm or more than a thickness required to filling therecess portion 39. Thereby diffusion bonding among particles at the interior of thedeposition group 53 can be generated. - Meanwhile, a part of the
deposition group 53 becomes anexcessive deposition 53 f sticking out of therecess portion 39. Thereby diffusion bonding among particles at the interior of thedeposition group 53 can be generated. - After finishing the (3-5) repetition step, by means of driving the X-axis servo-
motor 9 and the Y-axis servo-motor 11, the table 7 is moved in the X-axis direction and the Y-axis direction to position the cylindermain body 37 so that thedeposition group 53 is opposed to thehard electrode 31. Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction. - Further, a pulsing electric discharge is generated between the
deposition group 53 and thehard electrode 31 in an electrically insulating liquid S. Thereby, as shown inFIG. 16 , by means of energy of the electric discharge, athin film 53 a composed of a structure of high density can be generated as well as theexcessive deposition 53 f can be removed. Meanwhile, when generating the pulsing discharge, thehard electrode 31 is moved in the X-axis direction relative to the cylindermain body 37 and thehard electrode 31, as being integral with theprocessing head 21, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23. - After finishing the (3-5) excessive deposition removal step, the cylinder
main body 37 is removed from thejig 17 and set at a predetermined position of theheat treatment furnace 43. Further, as shown inFIG. 17 , thedeposition group 53 accompanying the cylindermain body 37 is kept at a high temperature in a vacuum or in the air by means of theheat treatment furnace 43. Thereby, a heat treatment can be processed with respect to thedeposition group 53 so as to progress diffusion bonding among the particles at the interior of thedeposition group 53 and the production of thecylinder 51 as the metal product is finished. - Here, the temperature and the period of time are 20 minutes at a high temperature of 1050 degrees C. and subsequently 4 hours at a high temperature of 760 degrees C. in a case where the
deposition group 53 is composed of a nickel alloy or a cobalt alloy. - Meanwhile, the production method of the metal product in accordance with the aforementioned third embodiment may be modified as in the following embodiment.
- More specifically, the (3-6) excessive deposition removal step or the (3-7) heat treatment step can be omitted from the series of the steps in the production method of the metal production in accordance with the second embodiment or steps orders of the (3-6) excessive deposition removal step and the (3-7) heat treatment step can be interchanged.
- Moreover, instead of generating the pulsing discharge in the electrically insulating liquid S, a pulsing discharge may be generated in an electrically insulating gas.
- Furthermore, by using a grinding lathe instead of the electric spark machine 1, the casing cavity periphery D′ may be removed or the excessive 53 f may be removed.
- Moreover, instead of removing the casting cavity periphery D′, any defect periphery including defects such as cracks may be removed.
- Next, operations of the third embodiment will be described.
- Because energy of the electric discharge locally acts on a prominently small part and the
deposition group 53 is gradually formed by carrying out deposition, diffusion and/or welding of the material of the moldedelectrode 25 or such, a temperature of therecess portion periphery 39′ in the cylindermain body 37 is prevented from rapidly increasing at a time of producing thecylinder 51. - Moreover, because the
deposition group 53 is formed by means of the energy of the electric discharge, a boundary part between thedeposition group 53 and a base material of the cylindermain body 37 has a structure in which a composition ratio grades and hence thedeposition group 53 can be firmly combined with the cylindermain body 37. - Furthermore, because the diffusion boding among the particles at the interior of the
deposition group 53 progresses, a tensile strength of thedeposition group 53 can be increased. - In accordance with the third embodiment as described above, because the temperature of the
recess portion periphery 39′ in the cylindermain body 37 is prevented from rapidly increasing at the time of producing thecylinder 51, thermal deformation of therecess portion periphery 39′ is sufficiently suppressed and hence defective production of thecylinder 51 is reduced to be almost none. - Moreover, because the
deposition group 53 can be firmly combined with the cylindermain body 37, thedeposition group 53 becomes unsusceptible to peeling off from the base material of the cylindermain body 37 and hence quality of thecylinder 51 can be stabilized. - Furthermore, because the tensile strength of the
deposition group 53 can be increased, a mechanical strength of therecess portion periphery 39′ in the cylindermain body 37 can be increased. - Moreover, because the
deposition group 53 has thethin films cylinder 51 can be suppressed. - A
joint structure 55 in accordance with a fourth embodiment will be described hereinafter with reference toFIG. 18 . - The
joint structure 55 is provided with a pair ofmetal components metal component beveling portions 57 a, 57 b. Moreover, arecess portion 61 is defined by thebeveling portion 57 a of themetal component 57 and thebeveling portion 59 a of theother metal component 59 and adeposition 63 is formed at arecess portion periphery 61′ including therecess portion 61 by energy of the electric discharge. Further, thedeposition 63 is gradually formed by employing the moldedelectrode 27 shown inFIG. 1 , generating a pulsing electric discharge between therecess portion periphery 61′ including therecess portion 61 and the moldedelectrode 27 in an electrically insulating liquid or gas so that a material of the moldedelectrode 27 or a reaction substance of the material carries out deposition, diffusion and/or welding at therecess portion periphery 61′ by energy of the electric discharge. - Here, the molded
electrode 27 is composed of a molded body molded from powder of a material having the same composition as themetal components metal components metal component - Meanwhile, in a case where the base material of the
metal component electrode 27 may be formed by slurry pouring, MIM (Metal Injection Molding), spray forming and such. - Next, the production method of the joining method of the metal components in accordance with the fourth embodiment will be described hereinafter with reference to
FIG. 1 and fromFIG. 19 toFIG. 21 . - The joining method of the metal components in accordance with the fourth embodiment is a method for joining the pair of the
metal components electrode 27 and theheat treatment furnace 43 as described above. Further, the joining method of the metal components in accordance with the fourth embodiment is provided with a (4-1) butting step, a (4-2) deposition step, and a (4-3) heat treatment step as described below. - The pair of the
metal components jig 17 so that the pair of themetal components recess portion 61 is defined by thebeveling portion 57 a of themetal component 57 and thebeveling portion 59 a of theother metal component 59 as shown inFIG. 19 . - After finishing the (4-1) butting step, by means of driving the X-axis servo-
motor 9 and the Y-axis servo-motor 11, the table 7 is moved in the X-axis direction and the Y-axis direction to position the pair of themetal components recess portion periphery 61′ is opposite to the moldedelectrode 27. Meanwhile, there may be a case where the table 7 is only necessary to be moved in any of the X-axis direction and the Y-axis direction. - Further, a pulsing electric discharge is generated between the
recess portion periphery 61′ and the moldedelectrode 27 in an electrically insulating liquid S. Thereby, as shown inFIG. 20 , by means of energy of the electric discharge, a material of the moldedelectrode 27 or a reaction substance of the material carries out deposition, diffusion and/or welding at therecess portion periphery 61′ and thereby adeposition 63 can be gradually formed at therecess portion periphery 61′. Meanwhile, when generating the pulsing discharge, the moldedelectrode 27, as being integral with theprocessing head 21, is reciprocated in the Z-axis direction by a small travel distance by means of a drive of the Z-axis servo-motor 23. - Here, dimensions of the
deposition 63 are made to be greater than dimensions of therecess portion 61. In concrete terms, an outer periphery of thedeposition 63 is made to spread outward in 0.5 mm or more relative to an outer periphery of therecess portion 61 and a thickness of thedeposition 63 is made to be thicker in 0.3 mm or more than a thickness required to filling therecess portion 61. Thereby diffusion bonding among particles at the interior of thedeposition 63 can be generated. - After finishing the (4-2) deposition step, the pair of the
metal components jig 17 and set at a predetermined position of theheat treatment furnace 43. Further, thedeposition 63 accompanying the pair of themetal components heat treatment furnace 43. Thereby, a heat treatment can be processed with respect to thedeposition 63 so as to progress diffusion bonding among the particles at the interior of thedeposition 63 and joining of the pair of themetal components - Here, the temperature and the period of time are 20 minutes at a high temperature of 1050 degrees C. and subsequently 4 hours at a high temperature of 760 degrees C. in a case where the
deposition 63 is composed of a nickel alloy or a cobalt alloy. - Meanwhile, the joining method of the metal components in accordance with the aforementioned fourth embodiment may be modified as in the following embodiment.
- More specifically, the (4-3) heat treatment step can be omitted from the series of the steps in the joining method of the metal components in accordance with the fourth embodiment.
- Moreover, between the (4-2) deposition step and the (4-3) heat treatment step, an excessive deposition may be removed.
- Furthermore, instead of generating the pulsing discharge in the electrically insulating liquid S, a pulsing discharge may be generated in an electrically insulating gas.
- Next, operations of the fourth embodiment will be described.
- Because energy of the electric discharge locally acts on a prominently small part and the
deposition 63 is gradually formed by carrying out deposition, diffusion and/or welding of the material of the moldedelectrode 27 or such, a temperature of therecess portion periphery 61′ in themetal components metal components - Moreover, because the
deposition 63 is formed by means of the energy of the electric discharge, a boundary part between thedeposition 63 and a base material of themetal components deposition 63 can be firmly combined with themetal components - Furthermore, because the diffusion boding among the particles at the interior of the
deposition 63 progresses, a tensile strength of thedeposition 63 can be increased. - In accordance with the fourth embodiment as described above, because the temperature of the
recess portion periphery 61′ in themetal components metal components recess portion periphery 61′ is sufficiently suppressed and hence defective joining of the pair of the metal components is reduced to be almost none. - Moreover, because the
deposition 63 can be firmly combined with themetal components deposition 63 can be increased, the condition of the joint between the pair of themetal components joint structure 55 can be increased. - As described above, the invention has been described above by reference to several preferable embodiments, however, the scope and the right of the appended claims should not be limited to these embodiments.
Claims (6)
1. A method for joining metal components, comprising:
butting the metal components respectively having beveled ends to define a recess portion between the beveled ends; and
depositing a deposition from a deposition tool electrode to fill the recess portion by processing the metal components as a workpiece of an electric spark machine opposed to the deposition tool electrode.
2. The method of claim 1 , wherein the deposition electrode is formed by compressing a powder consisting essentially of the metal.
3. A metal product joined by the method of claim 1 .
4. A joint structure comprising:
a pair of components of a metal respectively including beveling ends, the beveling ends being butted with each other to form a recess portion defined by the beveling ends; and
a deposition deposited from a deposition tool electrode by processing the components as a workpiece of an electric spark machine opposed to the deposition tool electrode to fill the recess portion.
5. The joint structure of claim 4 , wherein the deposition electrode is formed by compressing a powder consisting essentially of the metal.
6. The joint structure of claim 4 , wherein the deposition is processed with a heat treatment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/632,436 US20100080648A1 (en) | 2003-06-11 | 2009-12-07 | Production method of metal product, metal product, connection method of metal component and connection structure |
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003167074 | 2003-06-11 | ||
JP2003-167025 | 2003-06-11 | ||
JP2003-167074 | 2003-06-11 | ||
JP2003167025 | 2003-06-11 | ||
US10/560,070 US7713361B2 (en) | 2003-06-11 | 2004-06-11 | Metal product producing method, metal product, metal component connecting method, and connection structure |
PCT/JP2004/008212 WO2004111303A1 (en) | 2003-06-11 | 2004-06-11 | Metal product producing method, metal product, metal component connecting method, and connection structure |
US12/632,436 US20100080648A1 (en) | 2003-06-11 | 2009-12-07 | Production method of metal product, metal product, connection method of metal component and connection structure |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/008212 Division WO2004111303A1 (en) | 2003-06-11 | 2004-06-11 | Metal product producing method, metal product, metal component connecting method, and connection structure |
US11/560,070 Division US7578518B2 (en) | 2005-11-17 | 2006-11-15 | Occupant protection device |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100080648A1 true US20100080648A1 (en) | 2010-04-01 |
Family
ID=33554388
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/560,070 Active 2026-03-10 US7713361B2 (en) | 2003-06-11 | 2004-06-11 | Metal product producing method, metal product, metal component connecting method, and connection structure |
US12/632,436 Abandoned US20100080648A1 (en) | 2003-06-11 | 2009-12-07 | Production method of metal product, metal product, connection method of metal component and connection structure |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/560,070 Active 2026-03-10 US7713361B2 (en) | 2003-06-11 | 2004-06-11 | Metal product producing method, metal product, metal component connecting method, and connection structure |
Country Status (9)
Country | Link |
---|---|
US (2) | US7713361B2 (en) |
EP (2) | EP1659196B1 (en) |
JP (2) | JPWO2004111303A1 (en) |
CN (2) | CN1826430B (en) |
CA (1) | CA2528886C (en) |
RU (1) | RU2325257C2 (en) |
SG (1) | SG163437A1 (en) |
TW (1) | TWI248474B (en) |
WO (1) | WO2004111303A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090148664A1 (en) * | 2006-08-03 | 2009-06-11 | Takenori Yoshizawa | Method of remedying glass substrate defect, method of producing glass substrate, glass substrate for display panel, and display panel |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4492503B2 (en) * | 2005-09-16 | 2010-06-30 | 株式会社日立製作所 | Surface treatment method |
EP1837113A1 (en) * | 2006-03-24 | 2007-09-26 | Siemens Aktiengesellschaft | Electrode arrangement and electric discharge machining method for insulating material |
FR2932106B1 (en) * | 2008-06-06 | 2010-05-21 | Airbus France | METHOD FOR REMOVING A COATING TO ENHANCE LAMINAR FLOW |
WO2011016516A1 (en) * | 2009-08-06 | 2011-02-10 | 株式会社Ihi | Method for closing hole |
EP2554289A4 (en) * | 2010-03-26 | 2017-06-14 | Keihin Seimitsu Kogyo Co., Ltd | Metal component coupling structure and device |
RU2570254C2 (en) * | 2011-03-01 | 2015-12-10 | Снекма | Production of metal part such as turbine engine blade reinforcement |
CN103143811B (en) * | 2013-03-21 | 2014-12-17 | 马鞍山市晨光高耐磨科技发展有限公司 | Tooth lip burying melting high-wear-resistant alloy technology used for mine |
CN107470849A (en) * | 2017-08-14 | 2017-12-15 | 浙江今泰汽车零部件制造有限公司 | Mould corrosion location renovation technique |
CN108188508B (en) * | 2017-11-29 | 2019-03-05 | 重庆运城制版有限公司 | A kind of colour-separation drafting method |
CN112981471B (en) * | 2021-02-08 | 2022-07-12 | 广东工业大学 | High-localization three-dimensional electrodeposition device and method |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3582608A (en) * | 1969-11-20 | 1971-06-01 | Nippon Steel Corp | Method of arc welding thick members by reciprocation of a welding wire electrode |
US5071059A (en) * | 1991-03-11 | 1991-12-10 | General Motors Corporation | Method for joining single crystal turbine blade halves |
US5858479A (en) * | 1996-01-17 | 1999-01-12 | Japan Science And Technology Corporation | Surface treating method by electric discharge |
US6336950B1 (en) * | 1997-10-03 | 2002-01-08 | The Ishizuka Research Institute Ltd. | Electrode rod for spark deposition, process for the production thereof, and process for covering with superabrasive-containing layer |
US6384365B1 (en) * | 2000-04-14 | 2002-05-07 | Siemens Westinghouse Power Corporation | Repair and fabrication of combustion turbine components by spark plasma sintering |
US6417477B1 (en) * | 1999-06-08 | 2002-07-09 | Rolls-Royce Corporation | Method and apparatus for electrospark alloying |
US6437278B1 (en) * | 1998-03-11 | 2002-08-20 | Mitsubishi Denki Kabushiki Kaisha | Green compact electrode for discharge surface treatment |
US6441333B1 (en) * | 1998-03-11 | 2002-08-27 | Mitsubishi Denki K.K. | Green compact electrode for discharge surface treatment and method of manufacturing green compact electrode for discharge surface treatment |
US20030111514A1 (en) * | 2001-01-23 | 2003-06-19 | Naoki Miyanagi | Method of friction welding, and frictionally welded structure |
US20040060964A1 (en) * | 2002-09-26 | 2004-04-01 | Siemens Westinghouse Power Corporation | Turbine blade closure system |
Family Cites Families (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB435132A (en) * | 1934-03-16 | 1935-09-16 | Leonard Close | Improvements in or relating to joints for pipes or cylinders |
JPS52133828A (en) * | 1976-05-04 | 1977-11-09 | Komatsu Mfg Co Ltd | Mending method for casting defect in casting |
US4292496A (en) * | 1980-01-17 | 1981-09-29 | Aluminum Company Of America | Vertical plate welding using double bevel joint |
US4346281A (en) * | 1980-01-17 | 1982-08-24 | Inoue-Japax Research Incorporated | Method of and apparatus for discharge-surfacing electrically conductive workpieces |
SU1098740A1 (en) * | 1983-01-31 | 1984-06-23 | Днепропетровский Ордена Трудового Красного Знамени Государственный Университет Им.300-Летия Воссоединения Украины С Россией | Material for electric-arc alloying |
JPS6117398A (en) | 1984-07-02 | 1986-01-25 | Sumitomo Metal Ind Ltd | Production of high alloy welding rod |
JPS6224916A (en) | 1985-07-22 | 1987-02-02 | Masahiko Suzuki | Formation of outer surface layer by electric discharge machining with use of melalloid electrode |
JPS62161493A (en) * | 1986-01-09 | 1987-07-17 | Mitsubishi Heavy Ind Ltd | Method for repairing crack |
CN86101207A (en) | 1986-02-26 | 1987-09-09 | 重庆大学 | New method of amending surface defects of castings |
JPH02307694A (en) * | 1989-05-23 | 1990-12-20 | Eagle Ind Co Ltd | Method for joining object |
US5097586A (en) * | 1990-12-14 | 1992-03-24 | General Electric Company | Spray-forming method of forming metal sheet |
US5071054A (en) | 1990-12-18 | 1991-12-10 | General Electric Company | Fabrication of cast articles from high melting temperature superalloy compositions |
JPH0593254A (en) * | 1991-09-30 | 1993-04-16 | Sumitomo Metal Ind Ltd | Method for joining metal |
JPH05141685A (en) | 1991-11-25 | 1993-06-08 | Matsushita Seiko Co Ltd | Drain testing device for air conditioner |
JP3098654B2 (en) | 1993-03-24 | 2000-10-16 | 科学技術振興事業団 | Surface treatment method and apparatus by electric discharge machining |
JPH0775893A (en) | 1993-09-03 | 1995-03-20 | Hitachi Ltd | Method for repairing structure and preventive maintenance method |
JP2758818B2 (en) | 1993-12-22 | 1998-05-28 | エレコム株式会社 | Disk storage case |
JP3271844B2 (en) * | 1993-12-31 | 2002-04-08 | 科学技術振興事業団 | Surface treatment method for metallic materials by submerged discharge |
JP3525143B2 (en) | 1995-03-23 | 2004-05-10 | 独立行政法人 科学技術振興機構 | Discharge surface modification method and apparatus therefor |
JP3363284B2 (en) | 1995-04-14 | 2003-01-08 | 科学技術振興事業団 | Electrode for electric discharge machining and metal surface treatment method by electric discharge |
FR2742369B1 (en) * | 1995-12-18 | 1998-03-06 | Framatome Sa | METHOD FOR CONNECTION BY HETEROGENEOUS WELDING OF TWO PARTS AND USE THEREOF |
JP3537939B2 (en) * | 1996-01-17 | 2004-06-14 | 独立行政法人 科学技術振興機構 | Surface treatment by submerged discharge |
JP3629920B2 (en) | 1997-10-20 | 2005-03-16 | 株式会社日立製作所 | Nozzle for gas turbine, gas turbine for power generation, Co-base alloy and welding material |
JP3227454B2 (en) * | 1998-05-13 | 2001-11-12 | 三菱電機株式会社 | Electrode for discharge surface treatment, method for producing the same, and discharge surface treatment method and apparatus |
JP2000015427A (en) | 1998-07-02 | 2000-01-18 | Ishikawajima Harima Heavy Ind Co Ltd | Surface treatment of case product |
JP2000071126A (en) | 1998-08-27 | 2000-03-07 | Mitsubishi Electric Corp | Discarge surface processing method, and its device |
JP2000230996A (en) | 1999-02-10 | 2000-08-22 | Toshiba Corp | Repair method for nuclear reactor structure |
US6258402B1 (en) | 1999-10-12 | 2001-07-10 | Nakhleh Hussary | Method for repairing spray-formed steel tooling |
JP3832719B2 (en) * | 2001-02-19 | 2006-10-11 | スズキ株式会社 | Valve seat forming electrode |
JP3902421B2 (en) * | 2001-06-15 | 2007-04-04 | スズキ株式会社 | Aluminum alloy surface treatment electrode and method for producing the same |
JP4490608B2 (en) | 2001-08-09 | 2010-06-30 | 株式会社東芝 | Repair method of structure |
KR100807952B1 (en) | 2001-11-05 | 2008-02-28 | 두산중공업 주식회사 | Method for mending defect of ferritic ductile lron |
JP2003167074A (en) | 2001-11-29 | 2003-06-13 | Seiko Instruments Inc | Radio controlled clock |
JP2003167025A (en) | 2001-11-30 | 2003-06-13 | Hitachi Electronics Eng Co Ltd | Power supply device for device of semiconductor testing device |
WO2004111304A1 (en) * | 2003-06-11 | 2004-12-23 | Ishikawajima-Harima Heavy Industries Co., Ltd. | Method for repairing machine part, method for forming restored machine part, method for manufacturing machine part, gas turbine engine, electric discharge machine, method for repairing turbine component, and method for forming restored turbine component |
-
2004
- 2004-06-11 WO PCT/JP2004/008212 patent/WO2004111303A1/en active Application Filing
- 2004-06-11 JP JP2005506938A patent/JPWO2004111303A1/en active Pending
- 2004-06-11 SG SG200704557-8A patent/SG163437A1/en unknown
- 2004-06-11 CN CN2004800207849A patent/CN1826430B/en not_active Expired - Lifetime
- 2004-06-11 CA CA2528886A patent/CA2528886C/en not_active Expired - Fee Related
- 2004-06-11 CN CN2011100391815A patent/CN102126063A/en active Pending
- 2004-06-11 EP EP04745806A patent/EP1659196B1/en not_active Expired - Lifetime
- 2004-06-11 RU RU2005141497/02A patent/RU2325257C2/en active
- 2004-06-11 TW TW093116935A patent/TWI248474B/en active
- 2004-06-11 EP EP11169018A patent/EP2371477A2/en not_active Withdrawn
- 2004-06-11 US US10/560,070 patent/US7713361B2/en active Active
-
2009
- 2009-12-07 US US12/632,436 patent/US20100080648A1/en not_active Abandoned
-
2010
- 2010-12-06 JP JP2010271884A patent/JP5328755B2/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3582608A (en) * | 1969-11-20 | 1971-06-01 | Nippon Steel Corp | Method of arc welding thick members by reciprocation of a welding wire electrode |
US5071059A (en) * | 1991-03-11 | 1991-12-10 | General Motors Corporation | Method for joining single crystal turbine blade halves |
US5858479A (en) * | 1996-01-17 | 1999-01-12 | Japan Science And Technology Corporation | Surface treating method by electric discharge |
US6336950B1 (en) * | 1997-10-03 | 2002-01-08 | The Ishizuka Research Institute Ltd. | Electrode rod for spark deposition, process for the production thereof, and process for covering with superabrasive-containing layer |
US6437278B1 (en) * | 1998-03-11 | 2002-08-20 | Mitsubishi Denki Kabushiki Kaisha | Green compact electrode for discharge surface treatment |
US6441333B1 (en) * | 1998-03-11 | 2002-08-27 | Mitsubishi Denki K.K. | Green compact electrode for discharge surface treatment and method of manufacturing green compact electrode for discharge surface treatment |
US6417477B1 (en) * | 1999-06-08 | 2002-07-09 | Rolls-Royce Corporation | Method and apparatus for electrospark alloying |
US6384365B1 (en) * | 2000-04-14 | 2002-05-07 | Siemens Westinghouse Power Corporation | Repair and fabrication of combustion turbine components by spark plasma sintering |
US20030111514A1 (en) * | 2001-01-23 | 2003-06-19 | Naoki Miyanagi | Method of friction welding, and frictionally welded structure |
US20040060964A1 (en) * | 2002-09-26 | 2004-04-01 | Siemens Westinghouse Power Corporation | Turbine blade closure system |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090148664A1 (en) * | 2006-08-03 | 2009-06-11 | Takenori Yoshizawa | Method of remedying glass substrate defect, method of producing glass substrate, glass substrate for display panel, and display panel |
US20110159227A1 (en) * | 2006-08-03 | 2011-06-30 | Takenori Yoshizawa | Method of remedying glass substrate defect, method of producing glass substrate, glass substrate for display panel, and display panel |
US8079893B2 (en) * | 2006-08-03 | 2011-12-20 | Sharp Kabushiki Kaisha | Method of remedying glass substrate defect |
US8298045B2 (en) | 2006-08-03 | 2012-10-30 | Sharp Kabushiki Kaisha | Method of remedying glass substrate defect |
Also Published As
Publication number | Publication date |
---|---|
RU2325257C2 (en) | 2008-05-27 |
US20070059905A1 (en) | 2007-03-15 |
CA2528886C (en) | 2012-02-07 |
SG163437A1 (en) | 2010-08-30 |
US7713361B2 (en) | 2010-05-11 |
EP1659196A4 (en) | 2008-09-17 |
EP1659196B1 (en) | 2011-08-10 |
TW200523399A (en) | 2005-07-16 |
JP2011094235A (en) | 2011-05-12 |
EP1659196A1 (en) | 2006-05-24 |
CN1826430B (en) | 2011-12-28 |
JPWO2004111303A1 (en) | 2006-07-20 |
RU2005141497A (en) | 2006-06-27 |
CA2528886A1 (en) | 2004-12-23 |
TWI248474B (en) | 2006-02-01 |
WO2004111303A1 (en) | 2004-12-23 |
CN102126063A (en) | 2011-07-20 |
CN1826430A (en) | 2006-08-30 |
EP2371477A2 (en) | 2011-10-05 |
JP5328755B2 (en) | 2013-10-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20100080648A1 (en) | Production method of metal product, metal product, connection method of metal component and connection structure | |
US6814544B2 (en) | Method for manufacturing turbine blade and manufactured turbine blade | |
US7723636B2 (en) | Method for repairing machine part, method for forming restored machine part, method for manufacturing machine part, gas turbine engine, electric discharge machine, method for repairing turbine component, and method for forming restored turbine component | |
WO1999058744A1 (en) | Electrode for discharge surface treatment and manufacturing method thereof and discharge surface treatment method and device | |
CN101138790A (en) | Method of preparing titanium steel composite liquid route connecting tube of the complex construction connecting surface | |
JPS6254841B2 (en) | ||
JP3797853B2 (en) | Method for producing aluminum alloy composite member by current bonding | |
JP2004035919A (en) | Target material | |
CN115921899A (en) | Method for manufacturing titanium alloy thin-wall reinforcing rib ultra-high vacuum chamber | |
Elmer et al. | Diffusion bonding and brazing of high purity copper for linear collider accelerator structures | |
JPH03184677A (en) | Method for joining metallic sintered material, pulley made of metallic sintered material and production thereof | |
CN115383280B (en) | Method for preparing super-thick composite steel plate by friction stir welding and composite rolling | |
JP2005219100A (en) | Joined material, and method for manufacturing the same | |
JP3708665B2 (en) | High frequency acceleration cavity | |
KR19990087413A (en) | Proximity net planar sputtering target and method for producing the medium | |
JPS61270336A (en) | Production of hollow tool | |
JPH10298677A (en) | Aluminum-aluminum matrix composite, and its production | |
JPH01284494A (en) | Method of welding metal mold | |
JP2004076038A (en) | Valve seat film forming method and valve seat film | |
JP3257694B2 (en) | Manufacturing method of composite member |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |