CN113634835B - Electric spark modeling method for shrouded impeller - Google Patents
Electric spark modeling method for shrouded impeller Download PDFInfo
- Publication number
- CN113634835B CN113634835B CN202110816900.3A CN202110816900A CN113634835B CN 113634835 B CN113634835 B CN 113634835B CN 202110816900 A CN202110816900 A CN 202110816900A CN 113634835 B CN113634835 B CN 113634835B
- Authority
- CN
- China
- Prior art keywords
- electrode
- hole
- processing
- electrode assembly
- machining
- 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.)
- Active
Links
Images
Classifications
-
- 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
- B23H9/14—Making holes
-
- 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
- B23H11/00—Auxiliary apparatus or details, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses an electric spark modeling method for a shrouded impeller, which relates to the technical field of electric spark machining and comprises the following steps: installing a workpiece, aligning hole positions, processing a conical hole, processing a cylindrical hole and finishing the processing. According to the invention, the tool electrode assembly is arranged on the adjusting mechanism, after the output end of the electric cylinder returns to the reset position, the flow direction of the working solution is changed into that the working solution is obliquely downwards punched out from the oblique flow hole on the first electrode, and is punched into the single-side direction of the cylindrical hole, and is punched out from the other side of the first electrode after passing through the lower area of the first electrode in the hole, and the flow direction can effectively discharge the electric corrosion products in the deeper cylindrical hole, so that the phenomena of arc discharge or short circuit are avoided, and the quality of the hole wall in the gas film hole is ensured; through setting up robotic arm and adjustment mechanism, can realize keeping away from the slant of work piece and interfering the position, guarantee that the processing position of waiting of work piece blade and blade shroud junction carries out the processing in air film hole smoothly.
Description
Technical Field
The invention relates to the technical field of electric spark machining, in particular to an electric spark molding method for a crowned impeller.
Background
The internal turbine blade of aeroengine operating condition is very abominable, it is high-speed rotatory under the impact of high pressure corrosivity gas, the cooling air film hole that mainly relies on the terminal surface to set up structurally cools off, prior art adopts spark-erosion machining technique to carry out the micropore processing in cooling air film hole to the blade usually, be about for the work piece submergence to be positioned in the spark-erosion machining working solution, utilize rotatory integral type electrode direct machining bell mouth and cylindrical hole on the machined surface, simultaneously through the ultrasonic vibration auxiliary assembly of integration setting, discharge the electroerosion product that produces in the spark-erosion machining process.
However, I find that the prior art still has certain disadvantages in the process of molding and processing the shrouded impeller blade for a long time: firstly, the gas film hole is tiny in structure and deep in depth, before the gas film hole on the end face is completely opened, ultrasonic vibration can only be matched with working liquid to bring out an electric corrosion product on the side of the integrated electrode close to the hole opening, and the electric corrosion product on the lower part of the integrated electrode with a large height-diameter ratio in the hole cannot be effectively removed, so that the phenomena of arc discharge or short circuit occur, and the quality of the hole wall of the lower part in the gas film hole is influenced; second, because the blade body extension length of the relative blade of shroud impeller's blade shroud is longer, and the two department of meeting possesses certain structure angle, leads to the integral type electrode to have the interference phenomenon when processing this department, and the interference air film hole that processes out has the air current to interact with other cooling air film holes, leads to the cooling effect of blade to remain to promote.
Disclosure of Invention
The invention aims to provide an electric spark molding method for a crown impeller, which aims to solve the defects caused in the prior art.
An electric spark molding method for a shrouded impeller comprises the following steps:
s1: installing a workpiece: mounting a workpiece to be machined on a workbench of an electric spark machine tool, and aligning and fixing;
s2: hole position alignment: the machining tool is arranged at a hole position to be machined between a blade crown and a blade root which are arranged on a workpiece;
s3: processing a taper hole: pumping working fluid for electric spark machining into the adjusting mechanism through a fluid supply pipeline by a fluid supply pump, driving the tool electrode assembly 4 by the adjusting mechanism to complete the modeling and machining of the conical hole on the workpiece, and simultaneously flushing the working fluid out of the lower end of the tool electrode assembly through two sides of the conical hole and discharging an electric corrosion product;
s4: machining a cylindrical hole: the adjusting mechanism drives the tool electrode assembly to complete the modeling processing of the cylindrical hole on the workpiece, and meanwhile, the working fluid obliquely downwards rushes into one side of the cylindrical hole from the tool electrode assembly, then rushes out from the other side of the cylindrical hole after passing through the lower part of the tool electrode assembly, and discharges the deep electric corrosion product in the cylindrical hole;
s5: and (3) finishing the processing: and after all the machining holes on the workpiece are finished in sequence, closing the liquid supply pump 5 and unloading the machined workpiece.
Preferably, adjustment mechanism includes electric jar, installation department and rotating vane, the installation department is installed in robotic arm's tip, and the upper end and the fluid supply pipeline of installation department are linked together, are provided with the division board of "T" shape in the installation department, the electric jar is installed in the lower extreme of division board, and the output of electric jar articulates there is the ejector pin, the other end of ejector pin articulates there is the change, the change rotates and sets up on tool electrode subassembly, installs the hydrojet head in the installation department in the top of division board, rotating vane rotates and installs in the installation department, and rotating vane's lower extreme is through foraminiferous fishplate bar and tool electrode subassembly looks coaxial fastening.
Preferably, a cavity above the isolation plate in the installation part is communicated with the liquid supply pipeline, and the rotating blade is arranged in a left cavity of the isolation plate.
Preferably, the liquid spraying head is obliquely installed in the installation part, and an outlet of the liquid spraying head is matched with the rotating blade.
Preferably, the tool electrode assembly comprises a first electrode, a second electrode and a plugging ball, the first electrode is hollow, the upper end of the first electrode is coaxially fixed with the perforated connecting plate, two symmetrically-arranged sliding grooves are formed in the first electrode, a plurality of uniformly-distributed oblique flow holes are formed in the first electrode in the vertical direction, a perforated fixing plate is arranged inside the first electrode, a vertical flow hole is formed in the lower end of the first electrode, the plugging ball is tightly abutted to the lower end of the perforated fixing plate through a spring, the lower end of the plugging ball is tightly abutted to the vertical flow hole, two symmetrically-arranged pushing balls are further slidably arranged on the lower portion of the first electrode on two sides of the plugging ball, the second electrode is slidably arranged in the sliding grooves, and the upper end of the second electrode is rotatably connected with the same shaft of the rotating ring.
Preferably, the two ejector balls are matched with the electrode in the vertical direction.
Preferably, the diameter of the plugging ball is larger than the aperture of the vertical flow hole and smaller than the inner diameter of the first electrode.
Preferably, the output end of the electric cylinder is in a fully extended state, and the height of the lower end face of the second electrode is not higher than that of the lower end face of the first electrode.
The invention has the advantages that: (1) the tool electrode assembly is arranged on the adjusting mechanism, the output end of the electric cylinder drives the electrode II to slide on the electrode I to the lowest end through the ejector rod, the vertical flow hole arranged at the lower end of the electrode I is opened through pushing the two ejector push balls, the high-pressure working fluid is flushed out from two sides of the tool electrode assembly in the conical hole after being flushed out from the vertical flow hole, and then an electric corrosion product generated in the machining process is brought out;
(2) through setting up robotic arm and adjustment mechanism, drive electrode two earlier and remove to the lower extreme of electrode one, the robotic arm of five-axis motion is cooperated, the slant that can realize avoiding the work piece is interfered the position, take first to carry out the bell mouth processing to blade body and blade shroud junction on the work piece, cylindrical hole of bell mouth lower extreme is processed by the less electrode one of cross-section relative dimension again, electrode two that lie in the top this moment can not cause the cylinder hole molding to interfere, guarantee that the processing position of treating of work piece blade body and blade shroud junction carries out the processing in gas film hole smoothly.
Drawings
FIG. 1 is a flow chart of the present invention.
Fig. 2 is a schematic view of the present invention in a state of machining a tapered hole.
Fig. 3 is an enlarged view of a structure at a in fig. 2.
Fig. 4 is a schematic view of the state of the present invention when a cylindrical hole is machined.
Fig. 5 is an enlarged view of the structure at B in fig. 4.
Fig. 6 is a view showing a structure of a work in the present invention.
Fig. 7 is a schematic view showing a state in which the working fluid is obliquely and downwardly discharged from the tool electrode assembly according to the present invention.
Fig. 8 is an interference demonstration diagram of a prior art integral electrode in machining an interference hole.
FIG. 9 is a schematic diagram of the process of machining interference holes according to the present invention.
The device comprises a base 1, a mechanical arm 2, an adjusting mechanism 3, a tool electrode assembly 4, a liquid supply pump 5, a liquid supply pipeline 6, an electric cylinder 31, a mounting part 32, a rotating blade 33, a separation plate 34, a mandril 35, a rotating ring 36, a liquid spray head 37, a perforated connection plate 38, a first electrode 41, a second electrode 42, a blocking ball 43, a chute 44, an inclined flow hole 45, a perforated fixing plate 46, a vertical flow hole 47, a spring 48 and a pushing ball 49.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
As shown in fig. 1 to 9, an electric spark molding method for a shrouded impeller includes the following steps:
s1: installing a workpiece: mounting a workpiece to be machined on a workbench of an electric spark machine tool, and aligning and fixing;
s2: hole site alignment: controlling an adjusting mechanism 3 to perform five-axis motion by a mechanical arm 2 arranged on a base 1, so that the lower end of a tool electrode assembly 4 arranged at the end part of the adjusting mechanism 3 is arranged at a hole position to be processed between a blade crown and a blade root on a workpiece;
s3: processing a taper hole: pumping working fluid for electric spark machining into the adjusting mechanism 3 through a fluid supply pipeline 6 by a fluid supply pump 5, driving the tool electrode assembly 4 by the adjusting mechanism 3 to complete the shaping and machining of the conical hole on the workpiece, and simultaneously flushing the working fluid from the lower end of the tool electrode assembly 4 through two sides of the conical hole and discharging an electroerosion product;
s4: machining a cylindrical hole: the adjusting mechanism 3 drives the tool electrode assembly 4 to complete the modeling processing of the cylindrical hole on the workpiece, and meanwhile, the working fluid obliquely downwards rushes into one side of the cylindrical hole from the tool electrode assembly 4, then rushes out from the other side of the cylindrical hole after passing through the lower part of the tool electrode assembly 4, and discharges a deep electrolytic corrosion product in the cylindrical hole;
s5: and (3) finishing the processing: and after all the machining holes on the workpiece are finished in sequence, closing the liquid supply pump 5 and unloading the machined workpiece.
In this embodiment, the adjusting mechanism 3 includes an electric cylinder 31, an installation portion 32 and a rotary blade 33, the installation portion 32 is installed at the end portion of the mechanical arm 2, the upper end of the installation portion 32 is communicated with the liquid supply pipe 6, a T-shaped isolation plate 34 is provided in the installation portion 32, the electric cylinder 31 is installed at the lower end of the isolation plate 34, the output end of the electric cylinder 31 is hinged to a push rod 35, the other end of the push rod 35 is hinged to a rotary ring 36, the rotary ring 36 is rotatably provided on the tool electrode assembly 4, a liquid spray head 37 is installed above the isolation plate 34 in the installation portion 32, the rotary blade 33 is rotatably installed in the installation portion 32, and the lower end of the rotary blade 33 is fixed with the tool electrode assembly 4 through a perforated connection plate 38.
In this embodiment, the chamber of the mounting portion 32 above the partition 34 is connected to the liquid supply duct 6, and the rotary vane 33 is disposed in the left chamber of the partition 34.
In this embodiment, the liquid ejecting head 37 is installed obliquely in the installation part 32, and an outlet of the liquid ejecting head 37 is engaged with the rotary blade 33.
In this embodiment, the tool electrode assembly 4 includes a first electrode 41, a second electrode 42, and a sealing ball 43, the first electrode 41 is hollow, and the upper end of the first electrode is coaxially fixed to the perforated connection plate 38, the first electrode 41 is provided with two symmetrically arranged sliding grooves 44, the first electrode 41 is further provided with a plurality of uniformly distributed diagonal flow holes 45 in the vertical direction, the first electrode 41 is internally provided with a perforated fixing plate 46, the lower end of the first electrode 41 is provided with a vertical flow hole 47, the sealing ball 43 is tightly abutted to the lower end of the perforated fixing plate 46 through a spring 48, the lower end of the sealing ball 43 is tightly abutted to the vertical flow hole 47, the lower portion of the first electrode 41 is further slidably provided with two symmetrically arranged pushing balls 49 at two sides of the sealing ball 43, the second electrode 42 is slidably arranged in the sliding grooves 44, and the upper end of the second electrode 42 is rotatably connected to the same shaft of the swivel 36.
It should be noted that the end surface of the outer edge of the first electrode 41 in the vertical direction is circular.
In this embodiment, two of the pushing balls 49 are vertically matched with the second electrode 42.
In this embodiment, the diameter of the plugging ball 43 is larger than the diameter of the vertical flow hole 47 and smaller than the inner diameter of the first electrode 41.
In addition, the output end of the electric cylinder 31 is in a fully extended state, and the height of the lower end face of the electrode II 42 is not higher than that of the lower end face of the electrode I41.
The working process and principle are as follows: when the invention is used, a workpiece is installed, hole position alignment, taper hole machining, cylindrical hole machining and unloading operation after machining are carried out in sequence according to the working procedures, in the hole shaping machining process after the hole positions are aligned, firstly, the workpiece is connected with the anode of an electric spark machining power supply, a tool electrode assembly 4 is connected with the cathode of the electric spark machining power supply, then, an electric cylinder 31 is started to enable the output end of the electric cylinder to extend out, an electrode II 42 is driven by an ejector rod 35 to slide on an electrode I41 to the lowest end, at the moment, the electrode II 42 pushes two pushing balls 49 horizontally arranged at the lower end of the electrode I41 in a sliding groove 44, under the action of the two symmetrically arranged pushing balls 49, a blocking ball 43 moves upwards in the electrode I41, at the moment, a spring 48 is stressed and compressed, and a vertical flow hole 47 arranged at the lower end of the electrode I41 is opened;
then the liquid supply pump 5 is started, the electric spark machining working liquid is supplied to the cavity above the partition plate 34 in the installation part 32 at high pressure through the liquid supply pipeline 6, the working liquid passes through the obliquely arranged liquid spraying head 37 and then washes the end face of the rotating blade 33 which is rotatably installed in the installation part 32, so as to drive the tool electrode assembly 4 at the lower end to synchronously and continuously rotate, the rotating tool electrode assembly 4 can enable the end face to be uniformly worn, the deflection caused by the reverse acting force of the high-pressure and high-speed working liquid is avoided, most of the working liquid flowing to the electrode I41 through the perforated connecting plate 38 is washed out from the vertical flow hole 47 with larger aperture, after the electric spark machining power supply is started, the electric spark machining of the conical hole is started, the working liquid is washed out from the two sides of the tool electrode assembly 4 in the conical hole, and then the electric corrosion product generated in the machining process is carried out, in the process, because the electrode II 42 moves to the lowest end of the electrode I41, the mechanical arm 2 which is matched with five-axis motion can avoid the oblique interference part of the workpiece, so that the air film hole is processed at the position to be processed at the joint of the blade body and the blade shroud of the workpiece;
after the machining of the conical hole is finished, the electric cylinder 31 is started again to enable the output end of the electric cylinder to return to the return stroke, the electrode II 42 slides on the electrode I41 to the highest position under the pulling action of the ejector rod 35, at the moment, two ejector balls 49 ejected by the electrode II 42 are reset under the pushing action of a spring 48, the blocking balls 43 block the vertical flow holes 47 formed in the lower end of the electrode I41 again, the flow direction of the high-pressure working fluid is changed into that the high-pressure working fluid is ejected downwards from the inclined flow holes 45 on the electrode I41 in an inclined mode, when the inner cylindrical hole is machined, the working fluid ejected downwards from the rotating electrode I41 in an inclined mode can be ejected into the single side direction of the cylindrical hole and then passes through the lower area of the electrode I41 in the hole to be ejected out from the other side of the electrode I41, the flow direction can effectively discharge electric corrosion products in the deeper cylindrical hole, the phenomenon of arc drawing or short circuit is avoided, the quality of the hole wall in the air film hole is guaranteed, and meanwhile, the electrode I41 with the smaller cross section, the second electrode 42 which is positioned at the uppermost end does not cause the interference of the cylindrical hole shape, and the smooth processing of the air film hole is ensured at the position to be processed at the joint of the blade body and the blade shroud of the workpiece.
Based on the above, the invention arranges the tool electrode assembly 4 on the adjusting mechanism 3, the output end of the electric cylinder 31 drives the second electrode 42 to slide on the first electrode 41 to the lowest end through the mandril 35, two pushing balls 49 are pushed to open a vertical flow hole 47 arranged at the lower end of the electrode I41, high-pressure working fluid is flushed out of the vertical flow hole 47 and then flushed out of two sides of the tool electrode assembly 4 in a conical hole, then carrying out the electric corrosion products generated in the processing process, after the output end of the electric cylinder 31 returns, the flow direction of the working solution is changed into the direction of one side which is obliquely and downwards punched out from the oblique flow hole 45 on the first electrode 41 and is punched into the cylindrical hole, and the working solution passes through the lower area of the first electrode 41 in the hole and is punched out from the other side of the first electrode 41, the flow direction can effectively discharge the electric corrosion products in the deeper cylindrical hole, thereby avoiding the phenomena of arc discharge or short circuit and ensuring the quality of the hole wall in the gas film hole;
through the arrangement of the mechanical arm 2 and the adjusting mechanism 3, the second electrode 42 is driven to move to the lowest end of the first electrode 41, the mechanical arm 2 in five-axis motion is matched, the oblique interference part of a workpiece can be avoided, tapered hole machining is conducted on the joint of the blade body and the blade shroud on the workpiece firstly, then the cylindrical hole at the lower end of the tapered hole is machined through the first electrode 41 with the smaller cross section relative size, the second electrode 42 located at the highest end cannot cause cylindrical hole modeling interference, and smooth machining of the air film hole is guaranteed to be conducted on the position to be machined at the joint of the blade body and the blade shroud of the workpiece.
It will be appreciated by those skilled in the art that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (2)
1. The spark modeling method for the shrouded impeller is characterized by comprising the following steps of:
s1: installing the shrouded impeller: installing a shrouded impeller to be machined on a workbench of an electric spark machine tool, and aligning and fixing the shrouded impeller;
s2: hole site alignment: controlling an adjusting mechanism (3) to perform five-axis motion by a mechanical arm (2) arranged on a base (1), so that the lower end of a tool electrode assembly (4) arranged at the end part of the adjusting mechanism (3) is arranged at a hole position to be processed between a blade crown and a blade root on the shrouded impeller;
the adjusting mechanism (3) comprises an electric cylinder (31), an installing part (32) and a rotating blade (33), the installing part (32) is installed at the end part of the mechanical arm (2), a T-shaped partition plate (34) is arranged in the installing part (32), a cavity above the partition plate (34) in the installing part (32) is communicated with the liquid supply pipeline (6), the electric cylinder (31) is installed at the lower end of the partition plate (34), an ejector rod (35) is hinged to the output end of the electric cylinder (31), a rotating ring (36) is hinged to the other end of the ejector rod (35), the rotating ring (36) is rotatably arranged on the tool electrode assembly (4), a liquid spraying head (37) is installed above the partition plate (34) in the installing part (32), the rotating blade (33) is arranged in the installing part and is located in the cavity on the left side of the partition plate (34), the liquid spraying head (37) is obliquely installed in the installing part (32), the outlet of the liquid spraying head (37) is matched with the rotating blade (33), the lower end of the rotating blade (33) is fixed with the tool electrode assembly (4) through a perforated connecting plate (38) in the same axis, when in machining, working liquid for electric spark machining is supplied to a cavity positioned above the partition plate (34) in the installation part (32) at high pressure through a liquid supply pipeline (6), and after passing through the obliquely arranged liquid spraying head (37), the working liquid for electric spark machining washes and rotates the end face of the rotating blade (33) installed in the installation part (32), so that the tool electrode assembly (4) at the lower end is driven to synchronously and continuously rotate;
the tool electrode assembly (4) comprises a first electrode (41), a second electrode (42) and a plugging ball (43), wherein the first electrode (41) is hollow, the upper end of the first electrode is fixed with the same shaft of the perforated connecting plate (38), the first electrode (41) is provided with two symmetrically-arranged sliding grooves (44), the first electrode (41) is further provided with a plurality of uniformly-distributed oblique flow holes (45) in the vertical direction, a perforated fixing plate (46) is arranged inside the first electrode (41), the lower end of the first electrode (41) is provided with a vertical flow hole (47), the plugging ball (43) is tightly abutted against the lower end of the perforated fixing plate (46) through a spring (48), the lower end of the plugging ball (43) is tightly abutted against the vertical flow hole (47), the lower part of the first electrode (41) is further provided with two symmetrically-arranged pushing balls (49) in a sliding manner on two sides of the plugging ball (43), and the second electrode (42) is arranged in the sliding grooves (44), the upper end of the second electrode (42) is rotationally connected with the same shaft of the rotating ring (36), the two pushing balls (49) are matched with the second electrode (42) in the vertical direction, and the diameter of each plugging ball (43) is larger than the aperture of each vertical flow hole (47) and smaller than the inner diameter of the first electrode (41);
s3: processing a taper hole: pumping working fluid for electric spark machining into the adjusting mechanism (3) by a fluid supply pump (5) through a fluid supply pipeline (6), driving the tool electrode assembly (4) by the adjusting mechanism (3) to complete the modeling and machining of the upper conical hole of the shrouded impeller, and simultaneously flushing the working fluid for electric spark machining from the lower end of the tool electrode assembly (4) through two sides of the conical hole and discharging an electric corrosion product;
s4: machining a cylindrical hole: the adjusting mechanism (3) drives the tool electrode assembly (4) to complete the modeling processing of the cylindrical hole on the shrouded impeller, and meanwhile, working fluid for electric spark processing obliquely downwards rushes into one side of the cylindrical hole from the tool electrode assembly (4), rushes out from the other side of the cylindrical hole after passing through the lower part of the tool electrode assembly (4), and discharges a deep electroerosion product in the cylindrical hole;
s5: and (3) finishing the processing: and after all the processing holes on the shrouded impeller are finished in sequence, closing the liquid supply pump (5) and unloading the shrouded impeller after processing.
2. The electric spark modeling method for the shrouded impeller of claim 1 wherein: and the output end of the electric cylinder (31) is in a fully extended state, and the height of the lower end surface of the second electrode (42) is not higher than that of the lower end surface of the first electrode (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110816900.3A CN113634835B (en) | 2021-07-20 | 2021-07-20 | Electric spark modeling method for shrouded impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110816900.3A CN113634835B (en) | 2021-07-20 | 2021-07-20 | Electric spark modeling method for shrouded impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113634835A CN113634835A (en) | 2021-11-12 |
| CN113634835B true CN113634835B (en) | 2022-07-15 |
Family
ID=78417774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110816900.3A Active CN113634835B (en) | 2021-07-20 | 2021-07-20 | Electric spark modeling method for shrouded impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113634835B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197443A (en) * | 1977-09-19 | 1980-04-08 | General Electric Company | Method and apparatus for forming diffused cooling holes in an airfoil |
| US7214901B1 (en) * | 2006-01-17 | 2007-05-08 | General Electric Company | Duplex electrical discharge machining |
| CN204893120U (en) * | 2015-05-31 | 2015-12-23 | 成都凯天电子股份有限公司 | Rotatory processingequipment of electric spark electrode |
| CN105171158A (en) * | 2015-10-10 | 2015-12-23 | 贵阳中航动力精密铸造有限公司 | Technology for machining conical gas film holes of turbine guide blade |
| CN112453603A (en) * | 2020-11-27 | 2021-03-09 | 合肥工业大学 | Sleeve-shaped electrochemical machining electrode capable of machining various complex hole patterns |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103465078B (en) * | 2013-09-03 | 2015-06-17 | 南京工业职业技术学院 | Integrated insulated electrolytic abrasive machining chuck |
-
2021
- 2021-07-20 CN CN202110816900.3A patent/CN113634835B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4197443A (en) * | 1977-09-19 | 1980-04-08 | General Electric Company | Method and apparatus for forming diffused cooling holes in an airfoil |
| US7214901B1 (en) * | 2006-01-17 | 2007-05-08 | General Electric Company | Duplex electrical discharge machining |
| CN204893120U (en) * | 2015-05-31 | 2015-12-23 | 成都凯天电子股份有限公司 | Rotatory processingequipment of electric spark electrode |
| CN105171158A (en) * | 2015-10-10 | 2015-12-23 | 贵阳中航动力精密铸造有限公司 | Technology for machining conical gas film holes of turbine guide blade |
| CN112453603A (en) * | 2020-11-27 | 2021-03-09 | 合肥工业大学 | Sleeve-shaped electrochemical machining electrode capable of machining various complex hole patterns |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113634835A (en) | 2021-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108890053B (en) | Double-channel tube electrode and electrolytic cutting method thereof | |
| CN102844124A (en) | Method for high-pressure liquid jet deburring and corresponding industrial installation | |
| CN111152065B (en) | Multidirectional slag removal equipment for mechanical lathe | |
| US6343496B1 (en) | Can shaping apparatus and method | |
| CN113714940A (en) | Artificially submerged cavitation jet shot blasting device, working method thereof and combined nozzle | |
| JP2013146651A (en) | Method for removing foreign matter inside hole | |
| KR100624651B1 (en) | Die and die device | |
| CN103894648B (en) | A kind of multifunctional high speed deep hole rig being provided with withdraw-filings device | |
| EP1658929A1 (en) | Chip removing method and air blow nozzle for removing chip | |
| US8561918B2 (en) | Nozzle and method for treating an interior of a workpiece | |
| CN113634835B (en) | Electric spark modeling method for shrouded impeller | |
| CN100522439C (en) | Apparatus for machining in confined spaces | |
| CN114596754A (en) | Detection device for numerical control turning and milling practical training teaching | |
| CN113828875B (en) | Electrolytic slotting device and electrolytic machining machine tool | |
| CN113634836A (en) | Electric spark machining process for crown-contained impeller of ternary rectifier | |
| CN204546679U (en) | Water under high pressure deburring cleaning machine | |
| CN115122144A (en) | Precise numerical control machine tool for hardware processing | |
| CN112796673A (en) | Mining cutting and cracking integrated drill bit and working method thereof | |
| CN113695098A (en) | Rotary 18-nozzle jet flow cross-shaped spray head | |
| CN110614543B (en) | Device and method for polishing blind hole of conductive workpiece by using liquid metal | |
| CN113385757A (en) | Die casting deburring device with multi-angle rotating mechanism | |
| CN221210897U (en) | Compound five mechanical processing former | |
| CN203725828U (en) | Multifunctional high-speed deep-hole drilling machine with negative pressure chip sucking device | |
| CN211488879U (en) | Automatic shell cleaning device | |
| US20240165724A1 (en) | Electrical discharge machining system with integrated flushing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |