CN114717641A - Runner surface aftertreatment device in laser powder bed melting forming piece - Google Patents
Runner surface aftertreatment device in laser powder bed melting forming piece Download PDFInfo
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- CN114717641A CN114717641A CN202210639058.5A CN202210639058A CN114717641A CN 114717641 A CN114717641 A CN 114717641A CN 202210639058 A CN202210639058 A CN 202210639058A CN 114717641 A CN114717641 A CN 114717641A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F3/00—Electrolytic etching or polishing
- C25F3/16—Polishing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/80—Plants, production lines or modules
- B22F12/88—Handling of additively manufactured products, e.g. by robots
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
- B33Y40/20—Post-treatment, e.g. curing, coating or polishing
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F7/00—Constructional parts, or assemblies thereof, of cells for electrolytic removal of material from objects; Servicing or operating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical & Material Sciences (AREA)
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- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Robotics (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
Abstract
The invention discloses a post-treatment device for the surface of an inner runner of a laser powder bed fused forming piece, a workpiece to be treated is horizontally fixed by a clamp, a linear motion mechanism is arranged at one end of one side of the clamp, which is positioned at the workpiece to be treated, the other end of the clamp, which is positioned at the other end of the workpiece to be treated, is provided with a peristaltic pumping system, a bidirectional liquid conveying pipe and a wire electrode are adopted, polishing liquid conveyed by the liquid conveying pipe acts on the surface of the wire electrode, point discharge occurs at microscopic and macroscopic bulges of the workpiece, thereby achieving the treatment of the smoothness of the inner surface of the workpiece, the area of the pipe capable of being polished is greatly reduced by adopting the bidirectional structure arrangement, a polishing passage is provided for the inner runner to be processed by utilizing the polishing liquid, a polishing passage is provided for the workpiece with the cooling liquid, the polishing of the workpieces with different lengths of the inner runner to be processed can be realized, the wire electrode passes through the inner runner of the workpiece to be processed, only the inner surface of the inner flow channel of the workpiece participates in the reaction, the outer surface of the workpiece is not contacted with the polishing solution, and the structure is simple.
Description
Technical Field
The invention belongs to the technical field of workpiece post-processing, and particularly relates to a post-processing device for the surface of an inner flow passage of a laser powder bed melting forming part.
Background
With the development of industry, the requirement for the roughness of the surface of a metal product is higher and higher. The application of the polishing technology can not only improve the appearance of the product, but also improve the corrosion resistance and the wear resistance of the surface of the material, so that the selection of a proper polishing method and a proper polishing process are important means for improving the quality of the product. At present, the polishing method commonly used at home and abroad comprises the following steps: mechanical polishing, chemical polishing, electrolytic polishing, ultrasonic polishing, magnetic grinding polishing, and the like. However, some of the above polishing methods usually rely on the manual labor of polishing workers, the metal powder generated during the polishing process can seriously affect the health of the polishing workers, the expected high quality of the workpiece with a patterned surface and a complicated shape is difficult to achieve, the processing efficiency is low, and the precision and the consistency of the product are poor; some polishing methods use certain concentrations of acids or bases, some of which are environmentally polluting chemicals, and the resulting waste liquid from the polishing process is difficult to handle, costly and of limited success.
The plasma technology is used as a leading research field crossed by disciplines, has wide application in the aspects of materials, energy, astronomy, chemical engineering, bioengineering and the like, and develops a series of new technologies and new processes in the fields of chemical synthesis, new material development, fine chemical processing, surface treatment and the like in an inexhaustible development process. The conventional plasma polishing technology is excited under vacuum, low pressure or normal pressure to generate plasma, active particles in the plasma and surface material particles are utilized to generate chemical reaction to generate volatile substances, the surface material is removed, the method is mainly applied to processing of optical elements, and most of processing objects are semiconductor materials.
At present, the electrolyte plasma processing technology has a little research on the polishing of inner holes, and according to the invention patent with the application number of CN107557853A named as small hole polishing device and processing method, the polishing problem of the inner holes is solved by utilizing the electrolyte plasma polishing, but the diameter of the polished inner holes is larger, and the polishing range of the pipe diameter in the small hole polishing device and the processing method is DN20 mm-DN 50 mm; the structure at the fixed department of mouth of pipe is complicated, needs insulating fixture to fix the processing, and inside cathode conducting tube does not have insulating processing, when handling the less tubule of hole size, easily takes place the short circuit phenomenon. For example, when the processing aperture is smaller than 5mm, 500mm removes the insulation distance between the metal workpiece and the conductive metal tube, and the size of the conductive metal tube is far smaller than 5mm, at this time, depending on the size of the conductive metal tube (which is expected to be 1mm, otherwise, the distance between the cathode and the anode is small, discharge will directly occur, so that the thin tube is broken down), and therefore, the polishing method cannot be used for polishing the inner flow channel with the diameter smaller than 5 mm. The pipelines polished by the two inner hole polishing devices are vertically fixed on the device hanging rack, and the metal workpiece and the electrode wire are directly immersed in polishing liquid during polishing, so that the length of the polished inner flow channel tubule is limited to a certain extent. Is not suitable for polishing the inner flow passage with small aperture and large length.
Disclosure of Invention
The invention aims to provide a post-treatment device for the surface of an inner flow passage of a laser powder bed fusion forming piece, which overcomes the defects of the prior art.
The utility model provides a runner surface aftertreatment device in laser powder bed melting forming part, including the fixture that is used for fixed pending work piece, it is fixed with pending work piece level through fixture, the one end that is located pending work piece in one side of fixture is provided with linear motion mechanism, the last wire electrode that is fixed with of linear motion mechanism, the wire electrode can coaxial setting in pending work piece, the other end that the opposite side of fixture is located pending work piece is provided with wriggling pumping system, wriggling pumping system one end is connected with the constant temperature heating cabinet, wriggling pumping system's the other end is connected with the transfer line, the transfer line can get into pending work piece inside from the other end of pending work piece, pending work piece connection power positive pole, the wire electrode is connected the power negative pole.
Preferably, the bottom of the fixture is provided with a workbench.
Preferably, the bottom of the linear motion mechanism is fixed with a lifting mechanism.
Preferably, the outer rings of the fixture, the linear motion mechanism and the peristaltic pumping system are provided with protective covers.
Preferably, the bottom of the workbench is provided with a water collecting tank, and the water collecting tank is communicated to the constant-temperature heating box through a liquid conveying pipeline.
Preferably, a plurality of wire electrodes are fixed on the linear motion mechanism.
Preferably, the output end of the peristaltic pumping system is connected with a plurality of infusion tubes.
Preferably, the workbench is provided with a guide frame, and the guide frame is provided with a plurality of through holes.
Preferably, the lifting mechanism is an X-type lifter.
Preferably, an insulating layer is arranged between the fixture and the workbench.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention relates to a post-treatment device for the surface of a flow channel in a laser powder bed melting forming part, wherein a workpiece to be treated is horizontally fixed through a fixture, a linear motion mechanism is arranged at one end, positioned at one end of the workpiece to be treated, of one side of the fixture, a wire electrode is fixed on the linear motion mechanism, the wire electrode can be coaxially arranged in the workpiece to be treated, a peristaltic pumping system is arranged at the other end, positioned at the other end of the workpiece to be treated, of the other side of the fixture, one end of the peristaltic pumping system is connected with a constant-temperature heating box, the other end of the peristaltic pumping system is connected with a liquid conveying pipe, the liquid conveying pipe can enter the workpiece to be treated from the other end of the workpiece to be treated, the workpiece to be treated is connected with a positive electrode of a power supply, the wire electrode is connected with a negative electrode of the power supply, a bidirectional liquid conveying pipe and the wire electrode are adopted, polishing liquid conveyed by the liquid conveying pipe acts on the surface of the wire, and a plasma gas layer is formed on the surface of the workpiece through a vapor-liquid plasma generation technology, the point discharge occurs at the microscopic and macroscopic bulges of the workpiece, so that the treatment of the finish degree of the inner surface of the workpiece is achieved, the bidirectional structure is adopted, the area of a pipeline capable of being polished is greatly reduced, the polishing solution is utilized to provide cooling liquid for the inner flow channel to be processed and simultaneously provide a polishing passage through the local polishing of the wire electrode, the workpiece polishing of the inner flow channels with different lengths can be realized, the wire electrode penetrates through the inner part of the inner flow channel to be processed of the workpiece, only the inner surface of the inner flow channel of the workpiece participates in the reaction, the outer surface of the workpiece is not in contact with the polishing solution, and the structure is simple.
Preferably, the wire electrode is controlled by the lifting mechanism, the wire electrode can move up and down while moving linearly by the lifting mechanism, the wire electrode can enter a complex irregular part inner flow channel to polish the complex inner flow channel, and the flow channel structure is polished on the premise of not influencing the performance of the part.
Preferably, an insulating layer is arranged between the fixture and the workbench to ensure the electricity safety in the polishing process.
Drawings
FIG. 1 is a front view of an internal flow passage surface post-treatment apparatus according to an embodiment of the present invention.
Fig. 2 is a perspective view of the post-treatment device for the surface of the inner flow passage in the embodiment of the invention.
Fig. 3 is a three-dimensional structure diagram of the installation of the lifting mechanism and the linear motion mechanism in the embodiment of the invention.
FIG. 4 is an enlarged view of a workpiece to be processed according to an embodiment of the present invention.
FIG. 5 is a drawing of an unpolished part of an embodiment of the present invention.
FIG. 6 is a drawing of a part after polishing using the apparatus of the present invention in an embodiment of the present invention.
In the drawing, the device comprises a workbench 1, a lifting mechanism 2, a linear motion mechanism 3, a clamp 4, a workpiece to be treated 5, a peristaltic pumping system 6, a constant temperature heating box 7, a perfusion tube 8, a perfusion tube 9, an electrode wire 10, a perfusion pipeline 11, a water collecting tank 12, a water pump 13, a control valve 14, an insulating layer 15, a protective cover 16 and a guide frame.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
As shown in figure 1, the device for post-processing the surface of the inner flow channel of the laser powder bed melting forming part comprises a clamp 4 for fixing a workpiece 5 to be processed, the workpiece 5 to be processed is horizontally fixed through the clamp 4, a linear motion mechanism 3 is arranged at one end, positioned at one end of the workpiece 5 to be processed, of one side of the clamp 4, an electrode wire 9 is fixed on the linear motion mechanism 3, the electrode wire 9 can be coaxially arranged in the workpiece 5 to be processed, a peristaltic pumping system 6 is arranged at the other end, positioned at the other end of the workpiece 5 to be processed, of the other side of the clamp 4, one end of the peristaltic pumping system 6 is connected with a constant temperature heating box 7, the constant temperature heating box 7 is used for heating polishing liquid, the other end of the peristaltic pumping system 6 is connected with a liquid conveying pipe 8, the liquid conveying pipe 8 can enter the workpiece 5 to be processed from the other end of the workpiece 5 to be processed, when polishing, the workpiece 5 to be processed is connected with the positive pole of a power supply, the electrode wire 9 is connected with a power supply cathode, the invention adopts a bidirectional liquid conveying pipe 8 and the electrode wire 9, polishing liquid conveyed by the liquid conveying pipe 8 acts on the surface of the electrode wire 9, a plasma gas layer is formed on the surface of a workpiece through a vapor-liquid plasma generation technology, point discharge is generated at microscopic and macroscopic bulges of the workpiece, thus the treatment of the finish degree of the inner surface of the workpiece is achieved, the bidirectional structure is adopted, the area of a pipeline capable of being polished is greatly reduced, the local polishing of the electrode wire is realized, the polishing liquid is utilized to provide cooling liquid for an inner flow channel to be processed and simultaneously provide a polishing passage, the workpiece polishing of the inner flow channels with different lengths can be realized, the electrode wire penetrates through the inner part of the inner flow channel to be processed of the workpiece, only the inner surface of the inner flow channel of the workpiece participates in reaction, the outer surface of the workpiece is not contacted with the polishing liquid, and the structure is simple.
As shown in fig. 1, the fixture 4 is fixedly installed on the worktable 1, and an insulating layer 14 is provided between the fixture 4 and the worktable 1 to ensure safety of electricity consumption during polishing.
The bottom of the linear motion mechanism 3 is fixed with a lifting mechanism 2, the lifting mechanism 2 is fixed on a workbench 1 and used for adjusting the running height of the linear motion mechanism 3, the wire electrode 9 is flexibly designed by adopting the lifting mechanism 2, the wire electrode 9 can move up and down while moving linearly by utilizing the lifting mechanism 2, the wire electrode 9 can be ensured to enter a complicated irregular part inner flow passage and polish a complicated inner passage, and the flow passage structure is polished on the premise of not influencing the performance of the part.
As shown in fig. 1, the lifting mechanism 2 used in the present invention is an X-type lifter, and is intended to provide stable vertical lifting drive, and may be configured to realize linear lifting drive.
In the working process, a workpiece 5 to be processed is connected with a power supply anode and used as an anode, a wire electrode 9 used as a cathode penetrates through an inner flow channel of the workpiece and discharges on the surface of the flow channel, a plasma gas layer is formed on the surface of the workpiece through a vapor-liquid plasma generation technology, and point discharge occurs at microscopic and macroscopic bulges of the workpiece, so that the finish of the inner surface of the workpiece is processed.
The polishing solution adopted by the invention is a low-concentration neutral salt solution (the neutral salt solution can be directly discharged), the wastewater generated in the polishing process only contains metal thrown away by plasma, the pollution is very small, the processing cost is low, and the electrolyte plasma polishing can obtain a processed surface with good consistency for parts with complex shapes which cannot be processed by mechanical polishing. The electrolyte plasma polishing efficiency of the invention can reduce the average roughness per minute of the same position of the workpiece by 1um (the original roughness Ra =5um or so), and the polishing roughness satisfies: ra is less than 1 um.
As shown in figure 1, a plurality of electrode wires are fixed on the linear motion mechanism, so that a plurality of runners can be processed simultaneously, and the efficiency of processing the surfaces of the runners of the workpieces is greatly improved. The electrode wire of the power supply cathode is fixedly connected to one end of the linear motion mechanism, the electrode wire does not need to be fixed by a fixture, and only needs to be fixed on the power supply cathode of a motion part of the linear motion mechanism.
As shown in fig. 2, the outer rings of the fixture 4, the linear motion mechanism 3 and the peristaltic pumping system 6 are provided with a protective cover 15, and the protective cover 15 is provided with a movable transparent observation window for observation during the polishing process.
As shown in fig. 3, a water collecting tank 11 is arranged at the bottom of the working table 1, and the water collecting tank 11 is communicated to the constant temperature heating tank 7 through a liquid conveying pipeline 10, so that the polishing liquid is recycled; the peristaltic pumping system 6 pumps polishing liquid to each inner flow channel, and the polishing liquid in the flow channels forms a plasma gas layer on the inner surface of the workpiece flow channel under the action of cathode and anode discharge and discharges to the microscopic and macroscopic bulges on the inner surface of the workpiece, so that the surface finish of the workpiece is treated.
The constant temperature heating box 7 is connected with a water pump 12 and a water collecting tank 11 through a liquid conveying pipeline 10, a control valve 13 is arranged on the liquid conveying pipeline 10, and the constant temperature heating box 7 heats polishing liquid contained in the constant temperature heating box and keeps a constant temperature state. The workpiece 5 to be processed is fixed on the workbench 1 by using the fixture 4, the outlet end of the peristaltic pumping system 6 is connected with a plurality of infusion tubes 8, and the infusion tubes 8 are connected with the ports of the inner flow passages to be polished of the workpiece 5 to be processed. According to the size of the workpiece 5 to be processed, the lifting mechanism 2 adjusts the height to adapt to the height of the flow channel in the workpiece. The electric control system controls the peristaltic pumping system 6 and the linear motion mechanism 3 to move according to the polishing control instruction through a transmission line. The electrode wire 9 for polishing is connected with the negative electrode of the power supply, and the workpiece 5 is connected with the positive electrode of the power supply.
As shown in fig. 4, a guide frame 16 is arranged on the workbench 1, a plurality of through holes are arranged on the guide frame 16, one wire electrode 9 is arranged in each through hole, the guide frame 16 is used for guiding and aligning the plurality of wire electrodes 9, a plurality of single pumps are adopted in the peristaltic pumping system 6, a plurality of infusion tubes 8 are correspondingly inserted into the output ends of the peristaltic pumping system, and the flow of polishing liquid in each inner flow channel can be independently controlled and adjusted in the working process.
The fixture 4 is fixed on the workbench 1, an insulating layer 14 is arranged between the fixture and the workbench, and different fixtures are arranged according to workpieces with different sizes.
The linear motion mechanism 3 is arranged on the lifting mechanism 2, and is convenient to adapt to workpieces with different diameters in the working process, and the height of the electrode wire is adjusted.
The electrode wire 9 is fixed on the linear motion mechanism 3, which is beneficial to the electrode wire 9 to move linearly and uniformly in the working process.
The specific polishing process comprises the following steps:
fixing a workpiece 5 to be processed on the workbench 1 by using a fixture 4;
the lifting mechanism 2 adjusts the height of the linear motion mechanism 3 to enable the electrode wire 9 to adapt to the height of the inner flow channel of the workpiece;
connecting the electrode wire 9 with the negative electrode of a power supply to be used as a cathode, and connecting the workpiece 5 with the positive electrode of the power supply to be used as an anode;
controlling the peristaltic pumping system 6 and the linear motion mechanism 3 to move according to the polishing control instruction;
the electrode wire 9 is used as a cathode to discharge on the surface of the inner flow channel of the workpiece, a plasma gas layer is formed on the surface of the workpiece through a vapor-liquid plasma generation technology, and point discharge occurs at the microscopic and macroscopic bulges of the workpiece, so that the finish of the inner surface of the workpiece is treated.
As shown in figure 6, the post-treatment device for the surface of the inner runner of the laser powder bed fusion forming part realizes polishing of a part made of 304 stainless steel and having a size diameter of 2 cm-60 cm and a length of 100cm, as shown in figure 5, the part is a part diagram before polishing, and as shown in figure 6, the part (with a diameter of 5cm and a length of 30 cm) after polishing has a smooth surface and obviously reduced roughness.
Claims (10)
1. A post-treatment device for the surface of a flow channel in a laser powder bed melting forming part is characterized by comprising a fixture (4) for fixing a workpiece (5) to be treated, the workpiece (5) to be treated is horizontally fixed through the fixture (4), a linear motion mechanism (3) is arranged at one end, located at the workpiece (5) to be treated, of one side of the fixture (4), an electrode wire (9) is fixed on the linear motion mechanism (3), the electrode wire (9) can coaxially penetrate through the workpiece (5) to be treated, a peristaltic pumping system (6) is arranged at the other end, located at the workpiece (5) to be treated, of the other side of the fixture (4), one end of the peristaltic pumping system (6) is connected with a constant-temperature heating box (7), the other end of the peristaltic pumping system (6) is connected with a liquid conveying pipe (8), the liquid conveying pipe (8) can enter the workpiece (5) to be treated from the other end of the workpiece (5) to be treated, the workpiece to be processed (5) is connected with the positive pole of a power supply, and the electrode wire (9) is connected with the negative pole of the power supply.
2. The device for post-processing the surface of the inner runner of the laser powder bed melting forming piece according to the claim 1, characterized in that the bottom of the fixture (4) is provided with the working table (1).
3. The device for post-processing the surface of the inner runner of the laser powder bed fusion forming piece as claimed in claim 1, characterized in that the lifting mechanism (2) is fixed at the bottom of the linear motion mechanism (3).
4. The device for post-processing the surface of the inner flow passage of the laser powder bed fusion forming piece as claimed in claim 1, characterized in that the outer rings of the fixture (4), the linear motion mechanism (3) and the peristaltic pumping system (6) are provided with a protective cover (15).
5. The device for post-treating the surface of the runner in the laser powder bed melting forming piece is characterized in that a water collecting tank (11) is arranged at the bottom of the workbench (1), and the water collecting tank (11) is communicated to the constant-temperature heating tank (7) through a liquid conveying pipeline (10).
6. The apparatus for post-processing the surface of a flow passage in a laser powder bed fusion-molded article according to claim 1, wherein a plurality of wire electrodes (9) are fixed to the linear motion mechanism (3).
7. The device for post-processing the surface of the flow channel in the laser powder bed fusion forming piece as claimed in claim 6, characterized in that the output end of the peristaltic pumping system (6) is connected with a plurality of infusion tubes (8).
8. The device for post-processing the surface of the inner runner of the laser powder bed melting forming piece as claimed in claim 2, characterized in that a guide frame (16) is arranged on the working table (1), and a plurality of through holes are arranged on the guide frame (16).
9. The apparatus for post-processing the surface of a runner in a laser powder bed fusion molded article according to claim 3, wherein the lifting mechanism (2) is an X-shaped lifter.
10. The device for post-treatment of the surface of the runner in the laser powder bed fusion forming piece according to claim 2, characterized in that an insulating layer (14) is arranged between the fixture (4) and the working table (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210639058.5A CN114717641A (en) | 2022-06-07 | 2022-06-07 | Runner surface aftertreatment device in laser powder bed melting forming piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210639058.5A CN114717641A (en) | 2022-06-07 | 2022-06-07 | Runner surface aftertreatment device in laser powder bed melting forming piece |
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| Publication Number | Publication Date |
|---|---|
| CN114717641A true CN114717641A (en) | 2022-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210639058.5A Pending CN114717641A (en) | 2022-06-07 | 2022-06-07 | Runner surface aftertreatment device in laser powder bed melting forming piece |
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| CN (1) | CN114717641A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116065225A (en) * | 2023-03-31 | 2023-05-05 | 太原理工大学 | Electrolytic polishing device for inner wall of special-shaped micro-fine tube |
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| CN111455391A (en) * | 2020-05-09 | 2020-07-28 | 上海理工大学 | Material increase manufacturing inner flow passage polishing device |
| CN111687692A (en) * | 2020-06-16 | 2020-09-22 | 西安增材制造国家研究院有限公司 | Flow channel polishing device and polishing method based on electrolyte plasma processing |
| JP2021050383A (en) * | 2019-09-25 | 2021-04-01 | トーステ株式会社 | Method for electropolishing inner surface of metal pipe and apparatus for electropolishing inner surface of metal pipe |
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2022
- 2022-06-07 CN CN202210639058.5A patent/CN114717641A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6277264B1 (en) * | 2000-02-02 | 2001-08-21 | Therma Corporation, Inc. | System and method for using multiple lead connections in an electropolishing process |
| US20030098245A1 (en) * | 2001-11-28 | 2003-05-29 | Industrial Technology Research Institute | Electropolishing process means for an inner surface of a long tube |
| CN107557853A (en) * | 2017-11-06 | 2018-01-09 | 哈尔滨安泽科技有限公司 | Aperture burnishing device and processing method |
| CN107779943A (en) * | 2017-11-06 | 2018-03-09 | 哈尔滨安泽科技有限公司 | Metal inner hole plasma polishing device and machining method thereof |
| JP2021050383A (en) * | 2019-09-25 | 2021-04-01 | トーステ株式会社 | Method for electropolishing inner surface of metal pipe and apparatus for electropolishing inner surface of metal pipe |
| CN111455391A (en) * | 2020-05-09 | 2020-07-28 | 上海理工大学 | Material increase manufacturing inner flow passage polishing device |
| CN111687692A (en) * | 2020-06-16 | 2020-09-22 | 西安增材制造国家研究院有限公司 | Flow channel polishing device and polishing method based on electrolyte plasma processing |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116065225A (en) * | 2023-03-31 | 2023-05-05 | 太原理工大学 | Electrolytic polishing device for inner wall of special-shaped micro-fine tube |
| CN116065225B (en) * | 2023-03-31 | 2023-06-16 | 太原理工大学 | Electrolytic polishing device for inner wall of special-shaped micro-fine tube |
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