JP4576362B2 - Manufacturing method of high temperature member for gas turbine - Google Patents

Description

  The present invention relates to a method for manufacturing a high-temperature member for a gas turbine, particularly a turbine rotor blade or a turbine stationary blade of a gas turbine.

As a method for manufacturing a high-temperature member for a gas turbine, for example, the one disclosed in Patent Document 1 is known.
JP-A-62-74529

  However, in the method for manufacturing a high-temperature member for gas turbine disclosed in Patent Document 1, the inner peripheral surface of the cooling hole of the high-temperature member for gas turbine can be processed only into a flat surface without unevenness. There is a limit to improving the cooling performance of high-temperature members for use (for example, turbine blades and turbine stationary blades).

  The present invention has been made in view of the above circumstances, and a method for manufacturing a high-temperature member for a gas turbine that can further improve the cooling performance of a high-temperature member for a gas turbine such as a turbine rotor blade or a turbine stationary blade of a gas turbine. The purpose is to provide.

The present invention employs the following means in order to solve the above problems.
Method for producing a high-temperature member for a gas turbine according to the present invention, in a method for producing a plurality of irregularities formed gas turbine high temperature member to the inner peripheral surface of the cooling holes cooling fluid passes, a hollow cylindrical shape made of a conductive material The electrolyte is circulated through the electrode, and the electrode is gradually advanced at a predetermined speed toward the workpiece made of a metal material while ejecting the electrolyte from the tip of the electrode. When applying a DC voltage between the electrode and the workpiece and machining the cooling hole in the workpiece along the axial direction of the electrode, the plurality of concaves and convexes are simultaneously performed or the cooling is performed. a method of manufacturing a gas turbine for high temperature member which is adapted to continue after processing the pores to process the plurality of irregularities with a conductive fin is provided on the distal end portion of the electrode, the said electrode to be Toward the workpiece When to proceed, the electrodes were to rotate about the longitudinal axis.
According to such a method for manufacturing a high-temperature member for a gas turbine, for example, while processing a cooling fluid passage or a fluid ejection hole in a workpiece, a plurality of irregularities are formed on the inner peripheral surface of the cooling fluid passage or the fluid ejection hole. Can be processed.
Further, according to such a method for manufacturing a high-temperature member for a gas turbine, for example, while processing a cooling fluid passage or a fluid ejection hole in a work piece, A plurality of (spiral) irregularities 10b and 19b as shown in FIG. 4 (b) can be processed.

Method for producing a high-temperature member for a gas turbine according to the present invention, in a method for producing a plurality of irregularities formed gas turbine high temperature member to the inner peripheral surface of the cooling holes cooling fluid passes, a hollow cylindrical shape made of a conductive material The electrolyte is circulated through the electrode, and the electrode is gradually advanced at a predetermined speed toward the workpiece made of a metal material while ejecting the electrolyte from the tip of the electrode. When applying a DC voltage between the electrode and the workpiece and machining the cooling hole in the workpiece along the axial direction of the electrode, the plurality of concaves and convexes are simultaneously performed or the cooling is performed. a method of manufacturing a gas turbine for high temperature member which is adapted to continue after processing the pores to process the plurality of irregularities, the tip of the electrode, only one inclined surface inclined to the longitudinal axis Is cut to have Together are, when advancing toward the electrode on the workpiece, the electrode was then pivot about the longitudinal axis.
According to such a method for manufacturing a high-temperature member for a gas turbine, for example, while processing a cooling fluid passage or a fluid ejection hole in a workpiece, a plurality of irregularities are formed on the inner peripheral surface of the cooling fluid passage or the fluid ejection hole. Can be processed.
Further, according to such a method for manufacturing a high-temperature member for a gas turbine, for example, while a cooling fluid passage or a fluid ejection hole is processed in a workpiece, the cooling fluid passage or the fluid ejection hole is formed on the inner peripheral surface of the cooling fluid passage or the fluid ejection hole. A plurality of (spiral) irregularities 10c and 19c as shown in FIG. 5 (b) can be processed.

Method for producing a high-temperature member for a gas turbine according to the present invention, in a method for producing a plurality of irregularities formed gas turbine high temperature member to the inner peripheral surface of the cooling holes cooling fluid passes, a hollow cylindrical shape made of a conductive material The electrolyte is circulated through the electrode, and the electrode is gradually advanced at a predetermined speed toward the workpiece made of a metal material while ejecting the electrolyte from the tip of the electrode. When applying a DC voltage between the electrode and the workpiece and machining the cooling hole in the workpiece along the axial direction of the electrode, the plurality of concaves and convexes are simultaneously performed or the cooling is performed. a method of manufacturing a gas turbine for high temperature member which is adapted to continue after processing the pores to process the plurality of irregularities, when we pull out the electrode from the workpiece, intermittently changing the dc voltage and so as to
According to such a method for manufacturing a high-temperature member for a gas turbine, for example, while processing a cooling fluid passage or a fluid ejection hole in a workpiece, a plurality of irregularities are formed on the inner peripheral surface of the cooling fluid passage or the fluid ejection hole. Can be processed.
Further, according to such a method for manufacturing a high-temperature member for a gas turbine, for example, irregularities 10e and 19e as shown in FIG. 8B are formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection holes 19. be able to.

Method for producing a high-temperature member for a gas turbine according to the present invention, in a method for producing a plurality of irregularities formed gas turbine high temperature member to the inner peripheral surface of the cooling holes cooling fluid passes, a hollow cylindrical shape made of a conductive material The electrolyte is circulated through the electrode, and the electrode is gradually advanced at a predetermined speed toward the workpiece made of a metal material while ejecting the electrolyte from the tip of the electrode. When applying a DC voltage between the electrode and the workpiece and machining the cooling hole in the workpiece along the axial direction of the electrode, the plurality of concaves and convexes are simultaneously performed or the cooling is performed. a method of manufacturing a gas turbine for high temperature member which is adapted to continue after processing the pores to process the plurality of irregularities, the tip outer surface of the electrode, provided exposed portion exhibiting a circular shape only one And the power When the advancing toward the workpiece and the electrode, and to rotate about the longitudinal axis.
According to such a method for manufacturing a high-temperature member for a gas turbine, for example, while processing a cooling fluid passage or a fluid ejection hole in a workpiece, a plurality of irregularities are formed on the inner peripheral surface of the cooling fluid passage or the fluid ejection hole. Can be processed.
Further, according to such a method for manufacturing a high-temperature member for a gas turbine, for example, while processing a cooling fluid passage or a fluid ejection hole in a work piece, A plurality of (spiral) irregularities 10g and 19g as shown in FIG. 10 (b) can be processed.

A gas turbine according to the present invention includes a high-temperature member for gas turbine manufactured by the above-described method for manufacturing a high-temperature member for gas turbine.
According to such a gas turbine, since the high-temperature member for a gas turbine that can sufficiently withstand high-temperature combustion is provided, in an advanced gas turbine plant in which efficiency is improved by increasing the turbine inlet gas temperature in order to improve efficiency. Can also be used.

The electrolytic processing apparatus according to the present invention allows an electrolytic solution to flow through a hollow cylindrical electrode made of a conductive material, and the electrode is applied to a workpiece made of a metal material while ejecting the electrolytic solution from the tip of the electrode. The workpiece is gradually moved forward at a predetermined speed, a DC voltage is applied between the electrode and the workpiece through the electrolytic solution, and a hole is machined in the workpiece along the axial direction of the electrode. When machining the hole with the electrolytic processing apparatus , the plurality of irregularities are processed on the inner peripheral surface of the hole at the same time or after the hole is processed. a electrolytic machining apparatus that is configured to allow, together with the conductive fin is provided on the distal end portion of the electrode, when advancing toward the electrode on the workpiece, the electrode, Configured to rotate around the longitudinal axis To have.
According to such an electrolytic processing apparatus, for example, a plurality of irregularities can be processed on the inner peripheral surface of the cooling fluid passage or fluid ejection hole while processing the cooling fluid passage or fluid ejection hole in the workpiece. .
In addition, according to such an electrolytic processing apparatus, for example, while processing the cooling fluid passage or the fluid ejection hole in the workpiece, the inner peripheral surface of the cooling fluid passage or the fluid ejection hole is illustrated in FIG. A plurality of (spiral) irregularities 10b and 19b as shown can be processed.

The electrolytic processing apparatus according to the present invention allows an electrolytic solution to flow through a hollow cylindrical electrode made of a conductive material, and the electrode is applied to a workpiece made of a metal material while ejecting the electrolytic solution from the tip of the electrode. The workpiece is gradually moved forward at a predetermined speed, a DC voltage is applied between the electrode and the workpiece through the electrolytic solution, and a hole is machined in the workpiece along the axial direction of the electrode. When machining the hole with the electrolytic processing apparatus , the plurality of irregularities are processed on the inner peripheral surface of the hole at the same time or after the hole is processed. a yet that electrolytic machining apparatus is configured to allow the tip of the electrode, along with being cut so as to have only one inclined surface inclined relative to the longitudinal axis, wherein the electrode When moving forward towards the work piece, And it is configured to rotate about the longitudinal axis.
According to such an electrolytic processing apparatus, for example, a plurality of irregularities can be processed on the inner peripheral surface of the cooling fluid passage or fluid ejection hole while processing the cooling fluid passage or fluid ejection hole in the workpiece. .
Further, according to such an electrolytic processing apparatus, for example, while processing the cooling fluid passage or the fluid ejection hole in the workpiece, on the inner peripheral surface of the cooling fluid passage or the fluid ejection hole, as shown in FIG. A plurality of (spiral) irregularities 10c and 19c as shown can be processed.

The electrolytic processing apparatus according to the present invention allows an electrolytic solution to flow through a hollow cylindrical electrode made of a conductive material, and the electrode is applied to a workpiece made of a metal material while ejecting the electrolytic solution from the tip of the electrode. The workpiece is gradually moved forward at a predetermined speed, a DC voltage is applied between the electrode and the workpiece through the electrolytic solution, and a hole is machined in the workpiece along the axial direction of the electrode. When machining the hole with the electrolytic processing apparatus , the plurality of irregularities are processed on the inner peripheral surface of the hole at the same time or after the hole is processed. a yet that electrolytic machining apparatus is configured to allow, when we pull out the electrode from the workpiece, and is configured to intermittently change the DC voltage.
According to such an electrolytic processing apparatus, for example, a plurality of irregularities can be processed on the inner peripheral surface of the cooling fluid passage or fluid ejection hole while processing the cooling fluid passage or fluid ejection hole in the workpiece. .
Moreover, according to such an electrolytic processing apparatus, the unevenness | corrugations 10e and 19e as shown in FIG.8 (b) can be formed in the internal peripheral surface of the cooling fluid channel | path 10 and the fluid ejection hole 19, for example.

The electrolytic processing apparatus according to the present invention allows an electrolytic solution to flow through a hollow cylindrical electrode made of a conductive material, and the electrode is applied to a workpiece made of a metal material while ejecting the electrolytic solution from the tip of the electrode. The workpiece is gradually moved forward at a predetermined speed, a DC voltage is applied between the electrode and the workpiece through the electrolytic solution, and a hole is machined in the workpiece along the axial direction of the electrode. When machining the hole with the electrolytic processing apparatus , the plurality of irregularities are processed on the inner peripheral surface of the hole at the same time or after the hole is processed. a yet that electrolytic machining apparatus is configured to allow the tip outer surface of the electrode, together with the exposed portion exhibiting a circular shape is provided only one, toward the electrode on the workpiece The electrode is moved around the longitudinal axis And it is configured to rotate.
According to such an electrolytic processing apparatus, for example, a plurality of irregularities can be processed on the inner peripheral surface of the cooling fluid passage or fluid ejection hole while processing the cooling fluid passage or fluid ejection hole in the workpiece. .
Further, according to such an electrolytic processing apparatus, for example, while processing the cooling fluid passage or the fluid ejection hole in the workpiece, the inner peripheral surface of the cooling fluid passage or the fluid ejection hole is shown in FIG. A plurality of (helical) irregularities 10g and 19g as shown can be processed.

  According to the present invention, it is possible to further improve the cooling performance of high-temperature members for gas turbines such as turbine rotor blades and turbine stationary blades of a gas turbine.

Hereinafter, a first embodiment of an electrolytic processing apparatus and a method for producing a high-temperature member for a gas turbine according to the present invention will be described with reference to the drawings.
FIG. 1 shows a cooling hole having a small diameter (for example, 1.0 mm to 3.5 mm) processed by using the electrolytic processing apparatus 100 according to this embodiment (in this embodiment, a cooling fluid passage 10 and a fluid ejection described later). 2 is a general perspective view of a turbine blade 1 (a moving blade in this embodiment) provided with a hole 19. FIG. 2 is a longitudinal sectional view of the turbine blade 1 shown in FIG. 1, and FIG. It is A line arrow sectional drawing.

  As what is provided with the turbine blade 1 manufactured by the manufacturing method of the electrolytic processing apparatus 100 and the high temperature member for gas turbines mentioned later, there exists a gas turbine (not shown), for example. This gas turbine is composed of a compressor (not shown), a combustor (not shown), and a turbine (not shown), and compressed air compressed by the compressor is burned together with fuel in the combustor and burned. Gas is introduced into the turbine and the turbine is driven. And a compressor is operated with the motive power of a turbine, for example, electric power generation is implemented with a generator.

  The turbine blade 1 shown in FIG. 1 is provided in multiple stages in the axial direction on the rotating shaft side of the turbine. The turbine blade 1 is made of, for example, a nickel base alloy (for example, MGA1400CC) or the like, and a Christmas tree type embedded portion 2 held on the rotating shaft side is formed. Profile portion) 5 is formed.

  As shown in FIGS. 2 and 3, the turbine blade 1 is formed with a cavity extending in the vertical direction, and, for example, four cooling fluid passages 10, 11, 12, and 13 are formed from the front edge to the rear edge. Yes. The two cooling fluid passages 10 and 11 on the leading edge side communicate with cooling passages 14 and 15 for introducing a cooling fluid (for example, air) from the rotor side.

The cooling fluid passage (small diameter deep hole) 10 is a narrow passage independent of the other three cooling fluid passages (also referred to as “serpentine passage”), and introduces the cooling fluid from the cooling passage 14 at the blade root portion. And it becomes the structure discharged | emitted from the discharge port 10a of a blade top part.
Further, on the inner peripheral surface of the cooling fluid passage 10, a (spiral) unevenness 10b as a turbulator (turbulent flow generating means) as shown in FIG. 4B is provided at a predetermined depth from the blade top opening 10a. It is formed.

The cooling fluid passage 11 on the leading edge side and the cooling fluid passage 12 on the central portion constituting the serpentine passage communicate with each other at a turn-up portion 16 formed at the blade end, and the cooling fluid flowing upward through the cooling fluid passage 11 on the leading edge side. The fluid is folded at the folding portion 16 and flows downward through the cooling fluid passage 12 at the center.
Further, the cooling fluid passage 12 in the central portion and the cooling fluid passage 13 on the trailing edge side are communicated with each other by a turn-back portion 17 formed in the blade root portion on the shank 3 side with the platform 4 interposed therebetween. The cooling fluid that has flowed downward is folded by the folding portion 17 and flows upward in the cooling fluid passage 13 on the trailing edge side. Then, the cooling fluid that has flowed upward in the cooling fluid passage 13 on the trailing edge side is discharged from the discharge port 13a formed in the blade top.

The inner wall surface of the cooling fluid passage 11 on the front edge side is formed as a flat surface, and the inner wall surfaces of the cooling fluid passage 12 in the center and the cooling fluid passage 13 on the rear edge side intersect with the flow direction of the cooling fluid, respectively. A large number of ribs 18 are formed as turbulators (turbulent flow generating means) extending in the direction of the movement.
In addition, a large number of fluid ejection holes (small-diameter deep holes) 19 penetrating the rear edge in the plate thickness direction are formed in the rear edge (last edge) of the cooling fluid passage 13 on the rear edge side. On the inner peripheral surface of the hole 19, as with the unevenness 10 b formed on the inner peripheral surface of the cooling fluid passage 10, the (spiral) unevenness as a turbulator (turbulent flow generating means) as shown in FIG. 19b is formed. A part of the cooling fluid flowing upward in the cooling fluid passage 13 on the rear edge side is discharged from the discharge port 19a formed at the end of the rear edge.

Next, an electrolytic processing apparatus 100 that processes the cooling fluid passage 10 and the fluid ejection holes 19 and a method for manufacturing a high-temperature member for a gas turbine will be described with reference to FIGS. 4 and 13.
As shown in FIG. 13, the electrolytic processing apparatus 100 includes a processing liquid supply tank 101, a pump 102, a sludge removal filter 103, a flow rate adjustment valve 104, a processing machine 105, a transfer pump 106, and a precipitation tank 107. The pH value control device 108 is the main element.
Further, the processing machine 105 includes a processing machine main body 109, a feed mechanism 111 that is attached to the processing machine main body 109 and moves the pipe electrode 110 in the vertical direction (vertical direction in FIG. 13), and the pipe electrode 110 in the vertical direction. , And a DC power source 113.
As shown in FIG. 4A, the pipe electrode 110 according to the present embodiment has, for example, a hollow cylindrical electrode body 110a made of titanium (pure titanium) and an outer peripheral surface other than the tip portion of the electrode body 110a. Covering, for example, a coating material (acid-resistant coating material: insulating material: coating material) 110b made of Teflon (registered trademark), and at least one (in this embodiment, one) conductive material attached to the tip of the electrode body 110a And a sex fin 110c.

In the electrolytic processing apparatus 100 having such a configuration, the electrolytic solution stored in the processing liquid supply tank 101 is pumped toward the processing machine 105 by the pump 102, and the sludge is separated by the sludge removal filter 103. It passes through the flow rate adjusting valve 104 and enters the inside (hollow part) of one or a plurality of (four in this embodiment) pipe electrodes 110.
In addition, each pipe electrode 110 has a constant rotational speed (for example, 1.0 rpm) with respect to a workpiece (the turbine blade 1 in the present embodiment) 114 attached to the processing machine body 109 by the rotation mechanism 112. The feed mechanism 111 feeds in the vertical direction at a constant feed speed (for example, 1.5 mm / min).
Then, the anode of the DC power supply 113 for processing is coupled to the workpiece 114 and the cathode is coupled to the pipe electrode 110, so that the processing by the elution of the workpiece 114 can be continuously performed electrochemically. It will be done from.
The electrolyte flowing into the pipe of the pipe electrode 110 flows back upward at the tip of the pipe electrode 110 (the lower end in FIG. 13) and passes between the outer peripheral surface of the pipe electrode 110 and the workpiece 114. And overflows from the upper surface of the workpiece 114. The electrolytic solution overflowing from the upper surface of the workpiece 114 is transferred to the precipitation tank 107 by the transfer pump 106. In the sedimentation tank 107, sludge that has not been removed by the sludge removal filter 103 is separated by gravity, and only the supernatant electrolyte is returned to the processing liquid supply tank 101.

On the other hand, the pH value control device 108 includes a nitric acid tank 115, a pH meter 116, and a nitric acid supply control valve 117. The pH value control device 108, for example, puts neutral salt-based sodium nitrate (pH value 7) into the working fluid supply tank 101 and adjusts the concentration, and then turns the nitric acid supply control valve 117 of the nitric acid tank 115. It is opened, and the pH is automatically controlled by the pH meter 116, and a small amount of nitric acid is added to the electrolytic solution to adjust the pH value of the electrolytic solution in the processing solution supply tank 101 to 1 to 3.
As a result, sludge generated during processing can be redissolved in the solution, sludge can be prevented from adhering to the inner surface of the pipe electrode 110 of the electrolytic processing apparatus 100, and short-circuit processing can be realized. It is not necessary to clean the inner peripheral surface of the pipe electrode 110 in the middle, and stop marks due to processing interruption can be eliminated.
In addition, the code | symbol 118 in FIG. 13 is a temperature control unit for maintaining (adjusting) the temperature of the electrolyte solution stored in the processing liquid supply tank 101 at, for example, 20 ° C. to 50 ° C.

According to the electrolytic processing apparatus 100 according to the present embodiment, the current density can be concentrated on the tip of the electrode body 110a that is not covered with the covering material 110b and the conductive fins 110c attached to the tip. The pipe electrode 110 is fed in the vertical direction at a constant feed speed by the feed mechanism 111 while being rotated at a constant rotation speed by the rotation mechanism 112 with respect to the workpiece 114 attached to the processing machine body 109. 4B, while the cooling fluid passage 10 or the fluid ejection hole 19 is processed in the workpiece 114, the inner periphery of the cooling fluid passage 10 or the fluid ejection hole 19 is formed as shown in FIG. The (helical) irregularities 10b and 19b can be processed.
Further, according to the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, while the cooling fluid passage 10 or the fluid ejection hole 19 is processed in the workpiece 114, the inside of the cooling fluid passage 10 or the fluid ejection hole 19 is processed. Since it is possible to process the (helical) irregularities 10b and 19b as shown in FIG. 4B on the peripheral surface, the time required for the processing can be shortened and the manufacturing cost can be reduced. Can do.
Furthermore, according to the turbine blade 1 manufactured by the electrolytic processing apparatus 100 and the method for manufacturing the high-temperature member for gas turbine, the inner peripheral surface of the cooling fluid passage 10 and the fluid ejection hole 19 is shown in FIG. As shown, the turbulence (turbulent flow generation means) (spiral) irregularities 10b and 19b are formed, so that turbulent flow is generated in the cooling fluid flowing through the cooling fluid passage 10 and the fluid ejection hole 19. The heat transfer can be promoted, and the cooling performance of the entire turbine blade 1 can be improved.

A second embodiment of an electrolytic processing apparatus and a method for producing a high-temperature member for a gas turbine according to the present invention will be described with reference to FIGS. 5 (a) and 5 (b).
The manufacturing method of the electrolytic processing apparatus and the high-temperature member for gas turbine according to the present embodiment is the first described above in that a pipe electrode 210 as shown in FIG. 5A is provided instead of the pipe electrode 110. Different from the embodiment. Since other components are the same as those of the first embodiment described above, description of these components is omitted here. Moreover, the same code | symbol is attached | subjected to the same member as embodiment mentioned above.

  As shown in FIG. 5A, a pipe electrode 210 used in the present embodiment covers, for example, a hollow cylindrical electrode body 210a made of titanium (pure titanium) and the entire outer peripheral surface of the electrode body 210a. And a covering material (coating material) 210b made of Teflon (registered trademark). The tip of the electrode body 210a is cut so as to have only one inclined surface that is inclined with respect to an axis along the vertical direction (vertical direction in FIG. 5A). In (a), the lower end surface is exposed, that is, the electrode body 210a is exposed.

According to the electrolytic processing apparatus according to the present embodiment, the current density at the tip of the pipe electrode 210 can be set as shown in FIG. 6 and the pipe electrode 210 is attached to the processing machine body 109. While the workpiece 114 is rotated by the rotation mechanism 112 at a constant rotation speed, the workpiece 114 is fed in the vertical direction at a constant feed speed by the feed mechanism 111, so that a cooling fluid passage is formed in the workpiece 114. 10 or the fluid ejection hole 19, the (spiral) irregularities 10 c and 19 c as shown in FIG. 5B can be processed on the inner peripheral surface of the cooling fluid passage 10 or the fluid ejection hole 19. it can.
In addition, since the conductive fin 110c that protrudes radially outward from the outer peripheral surface of the pipe electrode 110 in the first embodiment described above is unnecessary, the pipe electrode 210 after processing can be easily extracted.
Furthermore, according to the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, while the cooling fluid passage 10 or the fluid ejection hole 19 is processed in the workpiece 114, the inside of the cooling fluid passage 10 or the fluid ejection hole 19 is processed. 5 (b) as shown in FIG. 5B can be processed on the peripheral surface, so that the time required for the processing can be shortened and the manufacturing cost can be reduced. Can do.
Furthermore, according to the turbine blade manufactured by such an electrolytic processing apparatus, a turbulator (turbulent flow generating means) as shown in FIG. 5B is formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection hole 19. (Helical) irregularities 10c and 19c are formed, so that a turbulent flow can be generated in the cooling fluid flowing through the cooling fluid passage 10 and the fluid ejection hole 19, and heat transfer is promoted. And the cooling performance of the entire turbine blade can be improved.

A first reference embodiment of an electrolytic processing apparatus and a method for manufacturing a high-temperature member for a gas turbine according to the present invention will be described with reference to FIGS. 7 (a) and 7 (b).
In the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, the conductive fin 110c is removed (deleted) from the pipe electrode 110 shown in FIG. 4A instead of the pipe electrodes 110 and 210. A pipe electrode (not shown) having a shape such that the entire outer peripheral surface of the electrode main body 110a is covered with a coating material (coating material) 110b made of Teflon (registered trademark), for example, the electrode main body is the tip surface This embodiment is different from the above-described embodiment in that it has a pipe electrode that is exposed only by this. Since other components are the same as those in the above-described embodiment, description of these components is omitted here. Moreover, the same code | symbol is attached | subjected to the same member as embodiment mentioned above.

  In the electrolytic processing apparatus and the method for producing a high-temperature member for a gas turbine according to the present embodiment, first, a pipe electrode is moved to a workpiece 114 attached to the processing machine body 109 by a feed mechanism 111 at a constant feed rate (for example, 1.5 mm / min), the lower hole (hole (or passage) having a flat inner peripheral surface without unevenness) is once processed to a predetermined depth, and then the pipe electrode is While repeating the operation of applying a voltage (for example, 10V) for a fixed time (for example, 60 seconds) and applying a voltage for a predetermined time (for example, 60 seconds) and applying a voltage by stopping the pitch by raising the pitch, that is, as shown in FIG. The pipe electrode is pulled out while giving the electrode feed speed and voltage as shown.

According to the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, the pipe electrode in which only the tip surface of the electrode body is exposed is used. The inner peripheral surface of the ejection hole 19 can be processed with higher accuracy than that of the above-described embodiment.
Further, when pulling out the pipe electrode, the pipe electrode is pulled up to a predetermined pitch and stopped to apply a voltage, and the predetermined pitch is pulled up and stopped to apply a voltage repeatedly. 10 and 19d can be formed on the inner peripheral surface of the fluid ejection hole 19 and the time required for processing can be shortened and the manufacturing cost can be reduced. Can be achieved.
Furthermore, since the rotation mechanism 112 that rotates the pipe electrode about the axis along the vertical direction, which is an indispensable component in the above-described embodiment, can be eliminated (eliminated), the configuration of the entire apparatus is simplified. It is possible to reduce costs such as equipment costs.
Furthermore, according to the turbine blade manufactured by such an electrolytic processing apparatus, a turbulator (turbulent flow generating means) as shown in FIG. 7B is formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection hole 19. Therefore, the turbulent flow can be generated in the cooling fluid flowing through the cooling fluid passage 10 and the fluid ejection hole 19 to promote heat transfer. And the cooling performance of the entire turbine blade can be improved.

A third embodiment of an electrolytic processing apparatus and a method for producing a high-temperature member for a gas turbine according to the present invention will be described with reference to FIGS. 8 (a) and 8 (b).
In the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, the conductive fin 110c is removed (deleted) from the pipe electrode 110 shown in FIG. 4A instead of the pipe electrodes 110 and 210. A pipe electrode (not shown) having a shape such that the entire outer peripheral surface of the electrode main body 110a is covered with a coating material (coating material) 110b made of Teflon (registered trademark), for example, the electrode main body is the tip surface This embodiment is different from the above-described embodiment in that it has a pipe electrode that is exposed only by this. Since other components are the same as those in the above-described embodiment, description of these components is omitted here. Moreover, the same code | symbol is attached | subjected to the same member as embodiment mentioned above.

  In the electrolytic processing apparatus and the method for producing a high-temperature member for a gas turbine according to the present embodiment, first, a pipe electrode is moved to a workpiece 114 attached to the processing machine body 109 by a feed mechanism 111 at a constant feed rate (for example, 1.5 mm / min), the lower hole (hole (or passage) having a flat inner peripheral surface without unevenness) is once processed to a predetermined depth, and then the pipe electrode is fixed. While pulling up at a speed (for example, 1.0 mm / min), a voltage (for example, 10 V) is applied for a predetermined time (for example, 60 seconds) when the predetermined pitch is increased, and for a certain time when the predetermined pitch is increased. The pipe electrode is pulled out while repeating the above operation, that is, while applying a voltage as shown in FIG.

According to the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, the pipe electrode in which only the tip surface of the electrode body is exposed is used. The inner peripheral surface of the ejection hole 19 can be processed with higher accuracy than those in the first and second embodiments described above.
Further, when pulling out the pipe electrode, while pulling up the pipe electrode at a constant speed, an operation of applying a constant time voltage when the predetermined pitch is raised and applying a constant time voltage when the predetermined pitch is raised is repeatedly performed. As a result, irregularities 10e and 19e as shown in FIG. 8B can be formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection hole 19, and the time required for processing can be shortened. In addition, the manufacturing cost can be reduced.
Furthermore, since the pipe electrode is pulled out at a constant speed without being stopped in the middle, the time required for processing can be shortened.
Furthermore, the rotating mechanism 112 that rotates the pipe electrode around the axis along the vertical direction, which is an indispensable component in the first embodiment and the second embodiment described above, can be eliminated (eliminated). Thus, the configuration of the entire apparatus can be simplified, and costs such as equipment costs can be reduced.
Furthermore, according to the turbine blade manufactured by such an electrolytic processing apparatus, a turbulator (turbulent flow generating means) as shown in FIG. 8B is formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection hole 19. As the irregularities 10e and 19e are formed, turbulent flow can be generated in the cooling fluid flowing through the cooling fluid passage 10 and the fluid ejection hole 19, and heat transfer can be promoted. The cooling performance of the entire turbine blade can be improved.

A second reference embodiment of the electrolytic processing apparatus and the method for producing a high-temperature member for a gas turbine according to the present invention will be described with reference to FIGS. 9 (a) and 9 (b).
In the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, the conductive fin 110c is removed (deleted) from the pipe electrode 110 shown in FIG. 4A instead of the pipe electrodes 110 and 210. A pipe electrode (not shown) having a shape such that the entire outer peripheral surface of the electrode main body 110a is covered with a coating material (coating material) 110b made of Teflon (registered trademark), for example, the electrode main body is the tip surface This embodiment is different from the above-described embodiment in that it includes a pipe electrode exposed only by a pipe electrode and a pipe electrode 510 shown in FIG. Since other components are the same as those in the above-described embodiment, description of these components is omitted here. Moreover, the same code | symbol is attached | subjected to the same member as embodiment mentioned above.

  As shown in FIG. 9A, the pipe electrode 510 includes, for example, a hollow cylindrical electrode body 510a made of titanium (pure titanium) and an outer peripheral surface of the electrode body 510a at a predetermined pitch along the circumferential direction. A covering material (coating material) 510b made of, for example, Teflon (registered trademark) is provided.

  In the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, first, the pipe electrode exposed only at the front end surface is fed to the workpiece 114 attached to the processing machine main body 109 by the feed mechanism 111. It is fed in a vertical direction at a constant feed rate (for example, 1.5 mm / min), and a lower hole (a hole (or a passage) having a flat inner peripheral surface without unevenness) is once processed to a predetermined depth. Next, this pipe electrode is pulled out, and the pipe electrode 510 is completely inserted into the prepared hole. And after giving a voltage (for example, 10V) for a fixed time (for example, 150 seconds), the pipe electrode 510 is pulled out from the prepared hole.

According to the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, the pilot hole is processed by the pipe electrode in which only the tip surface of the electrode body is exposed. The inner peripheral surfaces of the passage 10 and the fluid ejection holes 19 can be processed with higher accuracy than those of the first and second embodiments described above.
Further, since the pipe electrode 510 is inserted into the pre-processed pilot hole and a voltage is applied to the pipe electrode 510 for a certain period of time, the cooling fluid passage 10 and the inner peripheral surface of the fluid ejection hole 19 are The irregularities 10f and 19f as shown in FIG. 9B can be formed, so that the time required for processing can be shortened and the manufacturing cost can be reduced.
Furthermore, since the rotation mechanism 112 that rotates the pipe electrode around the axis along the vertical direction, which is an indispensable component in the first embodiment and the second embodiment described above, can be eliminated (eliminated), The configuration of the entire apparatus can be simplified, and costs such as equipment costs can be reduced.
Furthermore, according to the turbine blade manufactured by such an electrolytic processing apparatus, a turbulator (turbulent flow generating means) as shown in FIG. 9B is formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection hole 19. As the irregularities 10f and 19f are formed, turbulent flow can be generated in the cooling fluid flowing through the cooling fluid passage 10 and the fluid ejection hole 19, and heat transfer can be promoted. The cooling performance of the entire turbine blade can be improved.

A fourth embodiment of an electrolytic processing apparatus and a method for producing a high-temperature member for a gas turbine according to the present invention will be described with reference to FIGS. 10 (a) and 10 (b).
The manufacturing method of the electrolytic processing apparatus and the gas turbine high temperature member according to the present embodiment is the first described above in that a pipe electrode 610 as shown in FIG. 10A is provided instead of the pipe electrode 110. Different from the embodiment. Since other components are the same as those of the first embodiment described above, description of these components is omitted here. Moreover, the same code | symbol is attached | subjected to the same member as embodiment mentioned above.

  As shown in FIG. 10A, the pipe electrode 610 used in the present embodiment covers, for example, a hollow cylindrical electrode body 610a made of titanium (pure titanium) and substantially the entire outer peripheral surface of the electrode body 610a. For example, a covering material (coating material) 610b made of Teflon (registered trademark) is provided. Further, a part of the outer peripheral surface of the electrode body 610a is not coated with the covering material 610b, that is, in this embodiment, a part of the outer peripheral surface of the electrode body 610a is exposed in a circular shape. . Furthermore, the coating material 610b is not applied to the tip surface of the electrode main body 610a (the lower end surface in FIG. 10A), and the tip surface of the electrode main body 610a is exposed.

  In the electrolytic processing apparatus and the method for producing a high-temperature member for a gas turbine according to the present embodiment, the pipe electrode 610 is fixed to a workpiece 114 attached to the processing machine body 109 by a rotation mechanism 112 at a constant rotation speed (for example, While being rotated at 1.0 rpm, the feed mechanism 111 feeds in a vertical direction at a constant feed rate (for example, 1.5 mm / min).

According to the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, the pipe electrode in which only the tip surface of the electrode body is exposed is used. The inner peripheral surface of the ejection hole 19 can be processed with higher accuracy than those in the first and second embodiments described above.
In addition, the current density can be concentrated on the tip surface and a part of the outer peripheral surface of the electrode main body 610 a that is not covered with the covering material 610 b, and the workpiece 114 is attached to the processing machine main body 109 with the pipe electrode 610. On the other hand, while being rotated by the rotation mechanism 112 at a constant rotation speed, the feed mechanism 111 is fed in the vertical direction at a constant feed speed. While processing the ejection holes 19, the (circular) irregularities 10 g and 19 g as shown in FIG. 10B can be formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection holes 19. The time required for processing can be shortened, and the manufacturing cost can be reduced.
Further, according to the turbine blade manufactured by such an electrolytic processing apparatus, a turbulator (turbulent flow generating means) as shown in FIG. 10B is formed on the inner peripheral surface of the cooling fluid passage 10 and the fluid ejection hole 19. Therefore, the turbulent flow can be generated in the cooling fluid flowing through the cooling fluid passage 10 and the fluid ejection hole 19, and the heat transfer can be promoted. Thus, the cooling performance of the entire turbine blade can be improved.

A third reference embodiment of an electrolytic processing apparatus and a method for producing a high-temperature member for a gas turbine according to the present invention will be described with reference to FIGS. 11 (a) and 11 (b).
In the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, the conductive fin 110c is removed (deleted) from the pipe electrode 110 shown in FIG. 4A instead of the pipe electrodes 110 and 210. A pipe electrode (not shown) having a shape such that the entire outer peripheral surface of the electrode main body 110a is covered with a coating material (coating material) 110b made of Teflon (registered trademark), for example, the electrode main body is the tip surface It differs from the thing of the 1st Embodiment and 2nd Embodiment which were mentioned above by having the pipe electrode exposed only by. Since other components are the same as those in the above-described embodiment, description of these components is omitted here. Moreover, the same code | symbol is attached | subjected to the same member as embodiment mentioned above.

  In the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, first, the pipe electrode exposed only at the front end surface has a constant voltage (with respect to the workpiece 114 attached to the processing machine main body 109). For example, 10V) is applied, and the feed speed is changed by the feed mechanism 111 in, for example, two stages of 1.0 mm / min and 2.0 mm / min, that is, as shown in FIG. It is sent in the vertical direction at a reasonable feed rate. It is to be held at a constant time (for example, 300 seconds) at 1.0 mm / min, and at a constant time (for example, 60 seconds) at 2.0 mm / min.

According to the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment , it is not necessary to previously process the pilot holes described in the first reference embodiment , the third embodiment, and the second reference embodiment. Therefore, the time required for processing can be shortened.
In addition, since the pipe electrode is fed in the vertical direction while changing the feed rate by the feed mechanism 111 while keeping the voltage constant, the cooling fluid passage 10 or the fluid ejection hole 19 is processed in the workpiece 114. However, irregularities 10h and 19h as shown in FIG. 11B can be formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection hole 19, and the time required for processing can be shortened. At the same time, the manufacturing cost can be reduced.
Furthermore, since the rotation mechanism 112 that rotates the pipe electrode around the axis along the vertical direction, which is an indispensable component in the first embodiment and the second embodiment described above, can be eliminated (eliminated), The configuration of the entire apparatus can be simplified, and costs such as equipment costs can be reduced.
Furthermore, according to the turbine blade manufactured by such an electrolytic processing apparatus, a turbulator (turbulent flow generating means) as shown in FIG. 11B is formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection hole 19. As the irregularities 10h and 19h are formed, turbulent flow can be generated in the cooling fluid flowing through the cooling fluid passage 10 and the fluid ejection hole 19, and heat transfer can be promoted. The cooling performance of the entire turbine blade can be improved.

A fourth reference embodiment of an electrolytic processing apparatus and a method for manufacturing a high-temperature member for a gas turbine according to the present invention will be described with reference to FIGS. 12 (a) and 12 (b).
In the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, the conductive fin 110c is removed (deleted) from the pipe electrode 110 shown in FIG. 4A instead of the pipe electrodes 110 and 210. A pipe electrode (not shown) having a shape such that the entire outer peripheral surface of the electrode main body 110a is covered with a coating material (coating material) 110b made of Teflon (registered trademark), for example, the electrode main body is the tip surface It differs from the thing of the 1st Embodiment and 2nd Embodiment which were mentioned above by having the pipe electrode exposed only by. Since other components are the same as those in the above-described embodiment, description of these components is omitted here. Moreover, the same code | symbol is attached | subjected to the same member as embodiment mentioned above.

  In the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment, first, the pipe electrode exposed only at the front end surface is fed to the workpiece 114 attached to the processing machine main body 109 by the feed mechanism 111. While being fed in a vertical direction at a constant feed rate (for example, 2.0 mm / min), and the voltage is changed in two stages of 5 V and 10 V, for example, as shown in FIG. A voltage is applied. The voltage is held at 5V for a certain time (for example, 40 seconds) and at 10V for a certain time (for example, 200 seconds).

According to the electrolytic processing apparatus and the method for manufacturing a high-temperature member for a gas turbine according to the present embodiment , it is not necessary to previously process the pilot holes described in the first reference embodiment , the third embodiment, and the second reference embodiment. Therefore, the time required for processing can be shortened.
Further, since the pipe electrode is fed in the vertical direction while the feed speed by the feed mechanism 111 is changed while the voltage applied to the pipe electrode remains constant, the cooling fluid passage 10 or While machining the fluid ejection holes 19, irregularities 10 i and 19 i as shown in FIG. 12B can be formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection holes 19, and the time required for machining Can be shortened, and the manufacturing cost can be reduced.
Furthermore, since the rotation mechanism 112 that rotates the pipe electrode around the axis along the vertical direction, which is an indispensable component in the first embodiment and the second embodiment described above, can be eliminated (eliminated), The configuration of the entire apparatus can be simplified, and costs such as equipment costs can be reduced.
Furthermore, according to the turbine blade manufactured by such an electrolytic processing apparatus, a turbulator (turbulent flow generating means) as shown in FIG. 12B is formed on the inner peripheral surfaces of the cooling fluid passage 10 and the fluid ejection hole 19. As the irregularities 10i and 19i are formed, turbulent flow can be generated in the cooling fluid flowing through the cooling fluid passage 10 and the fluid ejection hole 19, and heat transfer can be promoted. The cooling performance of the entire turbine blade can be improved.

In the above-described embodiment, the outer diameter of each pipe electrode is configured to be, for example, 0.6 mm to 3.4 mm, and the pipe electrode is smaller than the hole diameter of the cooling fluid passage 10 and the fluid ejection hole 19. Also, it is preferable to select one having an outer diameter as small as about 0.2 mm to 0.4 mm.
Further, the height difference of the unevenness in the above-described embodiment is about 0.2 mm to 0.5 mm.

  Furthermore, the present invention can be applied not only to the turbine rotor blades of gas turbines (including industrial gas turbines and aircraft gas turbines), but also to turbine turbine stationary blades of gas turbines, The present invention can also be applied to a high temperature member for a gas turbine.

It is a whole perspective view of the turbine blade provided with the cooling hole processed using the electrolytic processing apparatus by this invention. It is a longitudinal cross-sectional view of the turbine blade shown in FIG. FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. (A) is the principal part expanded longitudinal cross-sectional view of the pipe electrode shown in FIG. 13, (b) is the principal part enlarged longitudinal cross-sectional view of the cooling hole processed using the pipe electrode shown to (a). It is a figure which shows 2nd Embodiment of the electrolytic processing apparatus by this invention, Comprising: (a) is a figure similar to FIG. 4 (a), (b) is a figure similar to FIG.4 (b). It is explanatory drawing for demonstrating the current density of the pipe electrode shown to Fig.5 (a). It is a figure which shows 1st reference embodiment of the electrolytic processing apparatus by this invention, Comprising: (a) is a graph which shows the relationship between electrode feed rate and voltage, and time, (b) is a figure similar to FIG.4 (b). It is. It is a figure which shows 3rd Embodiment of the electrolytic processing apparatus by this invention, Comprising: (a) is a graph which shows the relationship between a voltage and time, (b) is a figure similar to FIG.4 (b). It is a figure which shows 2nd reference embodiment of the electrolytic processing apparatus by this invention, Comprising: (a) is a figure similar to FIG. 4 (a), (b) is a figure similar to FIG.4 (b). It is a figure which shows 4th Embodiment of the electrolytic processing apparatus by this invention, Comprising: (a) is a principal part expansion perspective view of a pipe electrode, (b) is a figure similar to FIG.4 (b). It is a figure which shows 3rd reference embodiment of the electrolytic processing apparatus by this invention, Comprising: (a) is a graph which shows the relationship between an electrode feed rate and time, (b) is a figure similar to FIG.4 (b). . It is a figure which shows 4th Embodiment of the electrolytic processing apparatus by this invention, Comprising: (a) is a graph which shows the relationship between a voltage and time, (b) is a figure similar to FIG.4 (b). 1 is a schematic overall configuration diagram showing a first embodiment of an electrolytic processing apparatus according to the present invention.

1 Turbine blade (high temperature member for gas turbine: workpiece)
10 Cooling fluid passage (cooling hole)
10b Unevenness 10c Unevenness 10d Unevenness 10e Unevenness 10f Unevenness 10g Unevenness 10h Unevenness 10i Unevenness 19 Fluid ejection hole (cooling hole)
19b Unevenness 19c Unevenness 19d Unevenness 19e Unevenness 19f Unevenness 19g Unevenness 19h Unevenness 19i Unevenness 100 Electrolytic processing device 110 Pipe electrode 114 Workpiece 210 Pipe electrode 510 Pipe electrode 610 Pipe electrode

Claims (9)

In the method for manufacturing a high temperature member for a gas turbine in which a plurality of irregularities are formed on the inner peripheral surface of the cooling hole through which the cooling fluid passes ,
An electrolyte is circulated through a hollow cylindrical electrode made of a conductive material, and the electrode is gradually ejected from the tip of the electrode toward the workpiece made of a metal material at a predetermined speed. A plurality of the plurality of cooling holes formed in the workpiece along the axial direction of the electrode by applying a DC voltage between the electrode and the workpiece via the electrolytic solution. a irregularities of simultaneously or a method of manufacturing a gas turbine for high temperature member which is adapted to process the plurality of irregularities continue after processing the cooling holes,
A gas characterized in that a conductive fin is provided at the tip of the electrode, and when the electrode is advanced toward the workpiece, the electrode is rotated around a longitudinal axis. Manufacturing method of high temperature member for turbine. In the method for manufacturing a high temperature member for a gas turbine in which a plurality of irregularities are formed on the inner peripheral surface of the cooling hole through which the cooling fluid passes ,
An electrolyte is circulated through a hollow cylindrical electrode made of a conductive material, and the electrode is gradually ejected from the tip of the electrode toward the workpiece made of a metal material at a predetermined speed. A plurality of the plurality of cooling holes formed in the workpiece along the axial direction of the electrode by applying a DC voltage between the electrode and the workpiece via the electrolytic solution. a irregularities of simultaneously or a method of manufacturing a gas turbine for high temperature member which is adapted to process the plurality of irregularities continue after processing the cooling holes,
The tip of the electrode is cut so as to have only one inclined surface inclined with respect to the longitudinal axis, and when the electrode is advanced toward the workpiece, the electrode is moved in the longitudinal direction. A method for manufacturing a high-temperature member for a gas turbine, wherein the gas turbine is rotated about an axis . In the method for manufacturing a high temperature member for a gas turbine in which a plurality of irregularities are formed on the inner peripheral surface of the cooling hole through which the cooling fluid passes ,
An electrolyte is circulated through a hollow cylindrical electrode made of a conductive material, and the electrode is gradually ejected from the tip of the electrode toward the workpiece made of a metal material at a predetermined speed. A plurality of the plurality of cooling holes formed in the workpiece along the axial direction of the electrode by applying a DC voltage between the electrode and the workpiece via the electrolytic solution. a irregularities of simultaneously or a method of manufacturing a gas turbine for high temperature member which is adapted to process the plurality of irregularities continue after processing the cooling holes,
The method for producing a high-temperature member for a gas turbine , wherein the DC voltage is intermittently changed when the electrode is pulled out from the workpiece . In the method for manufacturing a high temperature member for a gas turbine in which a plurality of irregularities are formed on the inner peripheral surface of the cooling hole through which the cooling fluid passes ,
An electrolyte is circulated through a hollow cylindrical electrode made of a conductive material, and the electrode is gradually ejected from the tip of the electrode toward the workpiece made of a metal material at a predetermined speed. A plurality of the plurality of cooling holes formed in the workpiece along the axial direction of the electrode by applying a DC voltage between the electrode and the workpiece via the electrolytic solution. a irregularities of simultaneously or a method of manufacturing a gas turbine for high temperature member which is adapted to process the plurality of irregularities continue after processing the cooling holes,
The outer surface of the tip of the electrode is provided with only one exposed portion having a circular shape, and when the electrode is advanced toward the workpiece, the electrode is rotated around a longitudinal axis. A method for manufacturing a high-temperature member for a gas turbine, characterized in that it is configured as described above.   A gas turbine comprising a high-temperature member for a gas turbine manufactured by the method for manufacturing a high-temperature member for a gas turbine according to any one of claims 1 to 4. An electrolyte is circulated through a hollow cylindrical electrode made of a conductive material, and the electrode is gradually ejected from the tip of the electrode toward the workpiece made of a metal material at a predetermined speed. In an electrolytic processing apparatus that advances, applies a DC voltage between the electrode and the workpiece through the electrolytic solution, and processes a hole in the workpiece along the axial direction of the electrode ,
When processing the hole, a plurality of irregularities can be processed on the inner peripheral surface of the hole at the same time or continuously after processing the hole. a Tei Ru electrolytic machining apparatus,
A conductive fin is provided at the tip of the electrode, and the electrode is configured to rotate about a longitudinal axis when the electrode is advanced toward the workpiece. Electrolytic processing equipment. An electrolyte is circulated through a hollow cylindrical electrode made of a conductive material, and the electrode is gradually ejected from the tip of the electrode toward the workpiece made of a metal material at a predetermined speed. In an electrolytic processing apparatus that advances, applies a DC voltage between the electrode and the workpiece through the electrolytic solution, and processes a hole in the workpiece along the axial direction of the electrode ,
When processing the hole, a plurality of irregularities can be processed on the inner peripheral surface of the hole at the same time or continuously after processing the hole. a Tei Ru electrolytic machining apparatus,
The tip of the electrode is cut so as to have only one inclined surface inclined with respect to the longitudinal axis, and when the electrode is advanced toward the workpiece, the electrode is moved in the longitudinal direction. An electrolytic processing apparatus configured to rotate around an axis . An electrolyte is circulated through a hollow cylindrical electrode made of a conductive material, and the electrode is gradually ejected from the tip of the electrode toward the workpiece made of a metal material at a predetermined speed. In an electrolytic processing apparatus that advances, applies a DC voltage between the electrode and the workpiece through the electrolytic solution, and processes a hole in the workpiece along the axial direction of the electrode ,
When processing the hole, a plurality of irregularities can be processed on the inner peripheral surface of the hole at the same time or continuously after processing the hole. a Tei Ru electrolytic machining apparatus,
An electrolytic processing apparatus configured to intermittently change the DC voltage when the electrode is pulled out of the workpiece. An electrolyte is circulated through a hollow cylindrical electrode made of a conductive material, and the electrode is gradually ejected from the tip of the electrode toward the workpiece made of a metal material at a predetermined speed. In an electrolytic processing apparatus that advances, applies a DC voltage between the electrode and the workpiece through the electrolytic solution, and processes a hole in the workpiece along the axial direction of the electrode ,
When processing the hole, a plurality of irregularities can be processed on the inner peripheral surface of the hole at the same time or continuously after processing the hole. a Tei Ru electrolytic machining apparatus,
The outer surface of the tip of the electrode is provided with only one exposed portion having a circular shape, and when the electrode is advanced toward the workpiece, the electrode is rotated around a longitudinal axis. An electrolytic processing apparatus configured as described above .

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