CN114570940B - Valve core material increasing and decreasing method and valve core structure - Google Patents
Valve core material increasing and decreasing method and valve core structure Download PDFInfo
- Publication number
- CN114570940B CN114570940B CN202210084964.3A CN202210084964A CN114570940B CN 114570940 B CN114570940 B CN 114570940B CN 202210084964 A CN202210084964 A CN 202210084964A CN 114570940 B CN114570940 B CN 114570940B
- Authority
- CN
- China
- Prior art keywords
- valve core
- groove
- ring body
- metal ring
- metal
- 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
- 239000011162 core material Substances 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000003247 decreasing effect Effects 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 102
- 239000000843 powder Substances 0.000 claims abstract description 27
- 230000008093 supporting effect Effects 0.000 claims abstract description 27
- 238000002844 melting Methods 0.000 claims abstract description 26
- 230000008018 melting Effects 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000003801 milling Methods 0.000 claims abstract description 15
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 10
- 230000008021 deposition Effects 0.000 description 9
- 238000007639 printing Methods 0.000 description 8
- 239000000654 additive Substances 0.000 description 7
- 230000000996 additive effect Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910052786 argon Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- 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
- B22F10/25—Direct deposition of metal particles, e.g. direct metal deposition [DMD] or laser engineered net shaping [LENS]
-
- 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
- B22F10/50—Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/001—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass valves or valve housings
-
- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
- B33Y80/00—Products made by additive manufacturing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K51/00—Other details not peculiar to particular types of valves or cut-off apparatus
-
- 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
Abstract
The application relates to the technical field of material increasing and decreasing forming, and provides a valve core material increasing and decreasing method and a valve core structure, wherein the method comprises the following steps: s1, placing a bottom plate on a workbench, wherein the bottom plate is used for bearing a workpiece and is used as a part of a product; s2, powder feeding and laser melting stacking are carried out to form a metal ring body, and a plurality of through grooves are uniformly distributed on the peripheral surface of the metal ring body; s3, performing material reduction milling on the through groove of the newly formed metal ring body, and then placing a metal sheet above the through groove to form a supporting sheet; s4, powder feeding and laser melting stacking are carried out on the top of the newly formed metal ring body so as to form a new metal ring body with a groove; s5, repeatedly executing the step S3 to the step S4 until a valve core with a flow channel structure inside is stacked on the bottom plate; the invention has the advantages of high flow channel forming precision, time saving and material saving.
Description
Technical Field
The application relates to the technical field of material increasing and decreasing forming, in particular to a valve core material increasing and decreasing method and a valve core structure.
Background
The traditional machining industry generally has no way to directly and integrally manufacture part structures with complex internal flow passages by machining methods. The laser melting deposition forming technology is based on the principle of additive manufacturing, and is particularly suitable for integrally processing and manufacturing the components with complex internal structures. The technology is increasingly applied to the processing and manufacturing of the mold and the water-cooling plate parts with the internal cavity channels, but the technology also needs to follow a certain rule in the processing and manufacturing process of the parts with the internal cavity channels to manufacture products with ideal structures.
A valve core of a commonly used industrial regulating valve is in the market, referring specifically to fig. 2, and includes a valve core body 100, complex flow channel structures 200 are uniformly arranged on the valve core body 100, and a valve core base 110 is arranged at the bottom of the valve core body 100. Some traditional factories adopt a brazing process to manufacture the valve core by stacking a plurality of layers of metal sheets, but the manufactured valve core has low structural strength and is not suitable for long-time use under a high-pressure environment, and if the valve core is used for a long time, the valve core is broken or cracked integrally. Other factories try to adopt an SLM laser powder bed for powder paving and material adding manufacturing, but the runner structure 200 of the valve core manufactured by the existing material adding technology is easy to deform, the runner size and the inner surface precision are difficult to ensure, and the forming efficiency is low.
Aiming at the problems, the method provides an effective technical solution.
Disclosure of Invention
The valve core material increasing and decreasing method and the valve core structure can manufacture a valve core with an internal complex flow channel structure, the flow channel structure is high in size precision and overall structural strength, and the efficiency is 5 times higher than that of an SLM material increasing method.
On one hand, the application provides a valve core material increasing and decreasing method, which comprises the following steps:
s1, placing a bottom plate on a workbench, wherein the bottom plate is used for bearing a workpiece and is used as a part of a product;
s2, powder feeding and laser melting stacking are carried out to form a metal ring body, and a plurality of through grooves are uniformly distributed on the peripheral surface of the metal ring body;
s3, performing material reduction milling on the through groove of the newly formed metal ring body, and then placing a metal sheet above the through groove to form a supporting sheet;
s4, powder feeding and laser melting stacking are carried out on the top of the newly formed metal ring body so as to form a new metal ring body with a groove;
s5, repeating the steps S3-S4 until a valve core with a flow channel structure is stacked on the bottom plate.
According to the valve core material increasing and decreasing method, after one layer of metal torus is printed out, one layer of metal supporting sheet is placed at the top of the through groove of the circumferential surface of the metal torus, so that when a new layer of metal torus is printed out above the metal torus on the bottom layer, the metal supporting sheet is placed on the through groove of the metal torus on the lower side to provide a supporting effect for the metal torus formed by the new laser melting and stacking, namely, the metal torus formed by the new laser melting and stacking on each layer can be supported, collapse does not occur when the through groove of the new layer of metal torus is printed, the forming precision is ideal, the flow channel structure formed between the metal torus on two adjacent sides is more stable, and the efficiency of the method is higher than that of the SLM laser material increasing method by more than 5 times.
Optionally, in the step S1, the base plate is horizontally placed on the workbench.
In practical application, through placing the bottom plate level, can conveniently place the metal supporting sheet at the structure top of putting through the groove.
Optionally, a valve core base is disposed on the bottom plate, the valve core base is a torus without a runner structure, and the step S2 includes: and feeding powder on the valve core base and laser melting and piling to form a metal ring body.
In this way, the additive time can be reduced, thereby improving the printing efficiency.
Optionally, the step S3 includes the steps of:
s301, milling the edges on two sides of the top of the through groove to form a first limit groove, wherein the first limit groove is used for fixing the supporting sheet.
Optionally, the step S3 includes:
s302, milling the top surface and the through groove surface of the metal ring body to enable the top and the through groove wall surface of the metal ring body to be smooth.
Optionally, the steps S2 to S4 are all carried out under an inert atmosphere protection environment.
Optionally, the step S5 includes:
s6, cleaning the valve core with the flow channel structure inside to remove metal powder in the flow channel structure.
In a second aspect, the present application provides a valve core structure, where the valve core structure is made by the valve core material increasing and decreasing method described in any one of the above.
According to the method, after each layer of metal torus is printed, milling is performed on the through groove on the peripheral surface of the metal torus, and then a layer of metal supporting sheet is placed at the top of the through groove, so that when a new layer of metal torus is printed above the metal torus on the bottom layer, the metal supporting sheet can be placed on the through groove of the metal torus on the lower side to provide a supporting effect for the metal torus formed by the new laser melting and piling, namely, the metal torus formed by the new laser melting and piling can be supported, collapse does not occur when the through groove of the new layer of metal torus is printed, the forming precision is ideal, and a runner structure formed between the metal torus on two adjacent sides is more stable; the metal supporting sheet is conveniently placed at the top of the through groove structure in a horizontal state, so that the material adding efficiency is improved; and the valve core base is arranged on the bottom plate, and then the grafting printing process is carried out, so that a great amount of printing time is saved.
Additional features and advantages of the application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the embodiments of the application.
Drawings
Fig. 1 is a flowchart of a method for increasing or decreasing material of a valve element provided in the present application.
Fig. 2 is a schematic structural diagram of a valve core provided in the present application.
Fig. 3 is a schematic vertical sectional structure of a valve core provided in the present application.
Fig. 4 is a schematic horizontal sectional structure of a valve core provided in the present application.
Fig. 5 is a schematic diagram of an oblique cross-section structure of a valve core provided in the present application.
Fig. 6 is a schematic view of a metal torus stacking process provided herein.
Description of the reference numerals: 100. a valve core body; 110. a valve core base; 120. a metal torus; 121. a through groove; 122. a support sheet; 123. a first limit groove; 200. and a flow channel structure.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. The components of the embodiments of the present application, which are generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, as provided in the accompanying drawings, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. Meanwhile, in the description of the present application, the terms "first", "second", and the like are used only to distinguish the description, and are not to be construed as indicating or implying relative importance.
In practical application, the process method of the application is called a valve core material increasing and decreasing method and also can be called a valve core material increasing and decreasing compound method, specifically, automatic material increasing and decreasing equipment is utilized, an additive mode based on LMD laser direct melting deposition (stacking) is adopted, and the principle of the LMD laser direct melting deposition (stacking) is that a high-energy density laser beam is utilized for scanning under the control of a computer software program. The specific operation process is as follows: firstly, importing a three-dimensional model file of a valve core into 3D printing software to form slice data, and then setting printing parameters in the printing software to obtain a printable data file; and then, the printable data file is led into laser melting deposition forming equipment, sufficient metal powder is added into powder feeding equipment, the powder feeding equipment carries out powder feeding operation according to the printable data in the laser melting deposition forming equipment, then, the high-energy laser directly melts and metallurgically bonds the synchronously fed metal powder with a matrix (laser melting and stacking), and then, the powder is continuously fed into and stacked layer by layer, and finally, the three-dimensional metal part is manufactured by printing.
Wherein the granularity of the metal powder is 150-350 meshes, the nitrogen and oxygen content is less than 500ppm, and the sphericity of the particles is more than 85. In the working parameters, the power density of the laser beam in the laser melting deposition shaping equipment is controlled to be 100-300J/square millimeter, and the scanning speed is controlled to be 5-10mm/s.
Referring to fig. 1-6, fig. 1 is a flowchart of a method for increasing or decreasing valve core materials according to some embodiments of the present application. The valve core material increasing and decreasing method comprises the following steps:
s1, placing a bottom plate on a workbench, wherein the bottom plate is used for bearing a workpiece and is used as a part of a product;
s2, powder feeding and laser melting stacking are carried out to form a metal ring body, and a plurality of through grooves are uniformly distributed on the peripheral surface of the metal ring body;
s3, performing material reduction milling on the through groove of the newly formed metal ring body, and then placing a metal sheet above the through groove to form a supporting sheet;
s4, powder feeding and laser melting stacking are carried out on the top of the newly formed metal ring body so as to form a new metal ring body with a groove;
s5, repeating the steps S3-S4 until the valve core with the flow channel structure 200 is stacked on the bottom plate.
Wherein, the bottom plate is preferably a round steel plate with the thickness of 20mm-30mm and the periphery of the round steel plate is 15mm-20mm larger than the maximum outer diameter of the valve core, thereby reducing the deformation degree of the bottom plate and saving the material consumption of the bottom plate.
Wherein, through the continuous stacking of the metal torus 120, the plurality of through grooves 121 eventually form the runner structure 200; of course, the flow channel structure 200 with different structures can be formed by changing the shape of the through groove 121; the specific shape of the through groove 121 is not limited herein.
The metal sheet can be placed manually or by an automated device such as a manipulator. The material reduction milling in step S3 may be performed by an existing material reduction tool.
In practical application, through the above steps, after each layer of metal torus 120 is printed, the top of each through groove 121 on the circumferential surface of the metal torus 120 is subjected to material reduction milling, and then one metal supporting sheet 122 is placed, so that when a new layer of metal torus 120 is printed above the metal torus 120 on the bottom layer, the device can provide supporting effect for the metal torus 120 newly melted and piled by the metal supporting sheet 122 on the through groove 121 of the metal torus 120 below, namely, the metal torus 120 newly melted and piled by each layer of metal torus 120 can be supported, so that collapse does not occur when the through groove 121 of the metal torus 120 on the new layer is printed, the forming precision is high, and the runner structure 200 formed between the metal torus 120 on two adjacent sides is more stable. Moreover, the forming efficiency of the traditional SLM laser material-increasing method is 80 g/h, and the forming efficiency of the LMD laser direct melting deposition (stacking) method can reach more than 400 g/h, so that the efficiency of material-increasing forming is greatly improved.
In some embodiments, in step S1, the base plate may be placed on the table at any angle for the additive operation.
In some preferred embodiments, in step S1, the base plate is placed horizontally on the table. In this way, it is convenient to place the metal support sheet on top of the through slot 121 structure.
In some embodiments, the laser fuse deposition modeling apparatus feeds powder from the bottom plate and performs additive from the bottom structure of the valve core (valve core base 110), where the bottom of the valve core has no flow channel structure 200.
In some preferred embodiments, the bottom plate is provided with a valve core base 110, and the valve core base 110 is a torus without the flow channel structure 200, and step S2 includes: powder feeding and laser melting stacking are performed on the valve core base 110 to form a metal torus 120. In practical applications, the valve core base 110 may be made of other processing equipment because of the absence of the flow channel structure 200, and then the made valve core base 110 is fixed on the bottom plate, and powder feeding and material adding are started from the top of the valve core base 110. In this way, the additive time can be reduced, thereby improving the printing efficiency.
In some embodiments, step S3 comprises the steps of:
s301, milling edges on two sides of the top of the through groove 121 to form a first limiting groove 123, wherein the first limiting groove 123 is used for fixing the supporting piece 122.
In practical application, after a layer of metal ring body 120 is deposited by laser melting, a first limit groove 123 with the thickness of 0.4mm-0.6mm is milled on the edge of a through groove 121 of the metal ring body 120 by using a milling cutter, a supporting limit point can be provided for metal dust of a placed supporting sheet 122, supporting force and limit are provided, the supporting sheet 122 can fall at the opening of the through groove 121 conveniently, and supporting and material adding effects are improved.
In some embodiments, step S3 comprises:
s302, milling the top surface of the metal torus 120 and the groove wall surface of the runner structure 200 to enable the top surface of the metal torus 120 and the groove wall surface of the runner structure 200 to be smooth.
In this way, uneven joint surfaces between two adjacent layers of metal torus 120 can be prevented, so that the processed whole and the runner structure 200 inside the valve core are deformed, and the dimension of the workpiece structure is wrong, thereby affecting the actual use effect and causing potential safety hazards; the size precision of the runner groove can be ensured, and the flow regulation characteristic conforming to the valve core design is ensured.
In some embodiments, steps S2-S4 are all performed in an inert atmosphere.
In practical applications, an inert gas (argon or helium) is generally used to create an oxygen-free environment, so as to avoid oxidation of metal dust at high temperature.
In some embodiments, step S5 is followed by:
s6, cleaning the valve core with the flow channel structure 200 inside to remove metal powder in the flow channel structure 200.
In practical applications, after the valve core is integrally formed, some unmelted metal powder may exist in the flow channel structure 200 inside the valve core. The workbench is generally an electric turntable, and can rotate and overturn, so that the formed valve core can shake or rotate, metal dust in the runner structure 200 can be shaken off, and then the residual metal dust is thoroughly blown out through an air gun, so that cleaning is completed. In this way, the production process can be optimized.
In some embodiments, step S6 is followed by,
the parts with the cleaned inner cavity are fixed on linear cutting equipment, the cutting position is adjusted, the pulse width is set to be 28-38 mu s, the pulse interval is 112-170 mu s, and the waveform is rectangular pulse. And starting the linear cutting equipment to cut the valve core from the substrate.
In summary, according to the valve core material increasing and decreasing method, after each layer of metal torus 120 is printed, material reducing milling is performed on the through groove 121 on the circumferential surface of the metal torus 120, and then a layer of metal supporting sheet 122 is placed on the top of the through groove 121, so that when a new layer of metal torus 120 is printed on the upper side of the metal torus 120 on the bottom layer, the metal supporting sheet 122 on the through groove 121 of the metal torus 120 below can provide a supporting effect for the metal torus 120 newly melted and piled, namely, each layer of metal torus 120 newly melted and piled can obtain a self-supporting effect, so that collapse does not occur when the through groove 121 of the metal torus 120 on the new layer is printed, the forming precision of a runner structure is high, and the runner structure 200 formed between the metal torus 120 on two adjacent sides is more stable; the powder feeding laser melting stacking and the placement of the metal supporting sheets are convenient in a horizontal state, so that the additive processing efficiency is improved; and after the valve core base 110 is arranged on the bottom plate, a splicing printing process is performed, so that a great amount of printing time is saved. Moreover, the forming efficiency of the traditional SLM laser material-increasing method is 80 g/h, and the forming efficiency of the LMD laser direct melting deposition (stacking) method can reach more than 400 g/h, so that the material-increasing forming efficiency is greatly improved.
On the other hand, the application also provides a valve core structure which is manufactured by the valve core material increasing and decreasing method.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The foregoing is merely exemplary embodiments of the present application and is not intended to limit the scope of the present application, and various modifications and variations may be suggested to one skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (7)
1. The valve core material increasing and decreasing method is characterized by comprising the following steps of:
s1, placing a bottom plate on a workbench, wherein the bottom plate is used for bearing a workpiece and is used as a part of a product;
s2, powder feeding and laser melting stacking are carried out to form a metal ring body, and a plurality of through grooves are uniformly distributed on the peripheral surface of the metal ring body;
s3, performing material reduction milling on the through groove of the newly formed metal ring body, and then placing a metal sheet above the through groove to send laser to melt and stack so as to form a supporting sheet;
s4, powder feeding and laser melting stacking are carried out on the top of the newly formed metal ring body so as to form a new metal ring body with a groove;
s5, repeatedly executing the step S3 to the step S4 until a valve core with a flow channel structure inside is stacked on the bottom plate;
the step S3 includes the steps of:
s302, milling the top surface of the metal ring body and the surface of the through groove to enable the top of the metal ring body and the surface of the through groove to be smooth.
2. The method according to claim 1, wherein in step S1, the bottom plate is horizontally placed on the table.
3. The method for increasing or decreasing material of valve core according to claim 1, wherein the bottom plate is provided with a valve core base, the valve core base is a torus without a runner structure, and the step S2 includes: and feeding powder on the valve core base and laser melting and piling to form a metal ring body.
4. The method for increasing or decreasing material of valve element according to claim 1, wherein the step S3 includes the steps of:
s301, milling the edges on two sides of the top of the through groove to form a first limit groove, wherein the first limit groove is used for fixing the supporting sheet.
5. The method for increasing or decreasing material for a valve element according to claim 1, wherein the steps S2 to S4 are performed in an inert atmosphere environment.
6. The method for increasing or decreasing material of valve element according to claim 1, wherein after step S5, the method comprises:
s6, cleaning the valve core with the flow channel structure inside to remove metal powder in the flow channel structure.
7. A valve core structure, characterized in that it is made by the valve core material increasing and decreasing method according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210084964.3A CN114570940B (en) | 2022-01-25 | 2022-01-25 | Valve core material increasing and decreasing method and valve core structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210084964.3A CN114570940B (en) | 2022-01-25 | 2022-01-25 | Valve core material increasing and decreasing method and valve core structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114570940A CN114570940A (en) | 2022-06-03 |
| CN114570940B true CN114570940B (en) | 2024-04-02 |
Family
ID=81769129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210084964.3A Active CN114570940B (en) | 2022-01-25 | 2022-01-25 | Valve core material increasing and decreasing method and valve core structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114570940B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115139059B (en) * | 2022-07-04 | 2023-08-18 | 北京万维增材科技有限公司 | Composite forming method for increasing and decreasing materials of deep hole parts |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1029854A (en) * | 1963-06-20 | 1966-05-18 | Ind Fernand Courtoy Bureau Et | Improvements in and relating to methods of making transition pieces used in bonding dissimilar materials |
| WO2018223478A1 (en) * | 2017-06-05 | 2018-12-13 | 广东工业大学 | Dual-laser-beam deposition-forming and impact-forging combination additive manufacturing method |
| CN112643046A (en) * | 2020-11-26 | 2021-04-13 | 西安交通大学 | Internal flow channel unsupported forming method based on metal fuse wire material increase and decrease |
| CN112846229A (en) * | 2021-01-04 | 2021-05-28 | 西安航天发动机有限公司 | Laser material increase and decrease manufacturing method for large-size interlayer straight-groove annular component |
| CN112974845A (en) * | 2021-02-09 | 2021-06-18 | 江苏飞跃机泵集团有限公司 | Discontinuous laser additive manufacturing method for metal component |
| CN113414410A (en) * | 2021-06-22 | 2021-09-21 | 哈尔滨工程大学 | Method for manufacturing metal hollow sphere composite material by adding and subtracting materials |
| CN113492216A (en) * | 2021-07-07 | 2021-10-12 | 佛山宇仁智能科技有限公司 | Additive forming method for labyrinth type regulating valve cage and valve cage obtained by additive forming method |
| CN113638773A (en) * | 2021-09-03 | 2021-11-12 | 江苏中科智能科学技术应用研究院 | Impeller mixing manufacturing process |
-
2022
- 2022-01-25 CN CN202210084964.3A patent/CN114570940B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1029854A (en) * | 1963-06-20 | 1966-05-18 | Ind Fernand Courtoy Bureau Et | Improvements in and relating to methods of making transition pieces used in bonding dissimilar materials |
| WO2018223478A1 (en) * | 2017-06-05 | 2018-12-13 | 广东工业大学 | Dual-laser-beam deposition-forming and impact-forging combination additive manufacturing method |
| CN112643046A (en) * | 2020-11-26 | 2021-04-13 | 西安交通大学 | Internal flow channel unsupported forming method based on metal fuse wire material increase and decrease |
| CN112846229A (en) * | 2021-01-04 | 2021-05-28 | 西安航天发动机有限公司 | Laser material increase and decrease manufacturing method for large-size interlayer straight-groove annular component |
| CN112974845A (en) * | 2021-02-09 | 2021-06-18 | 江苏飞跃机泵集团有限公司 | Discontinuous laser additive manufacturing method for metal component |
| CN113414410A (en) * | 2021-06-22 | 2021-09-21 | 哈尔滨工程大学 | Method for manufacturing metal hollow sphere composite material by adding and subtracting materials |
| CN113492216A (en) * | 2021-07-07 | 2021-10-12 | 佛山宇仁智能科技有限公司 | Additive forming method for labyrinth type regulating valve cage and valve cage obtained by additive forming method |
| CN113638773A (en) * | 2021-09-03 | 2021-11-12 | 江苏中科智能科学技术应用研究院 | Impeller mixing manufacturing process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114570940A (en) | 2022-06-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111417486B (en) | Method for designing layered structure, method for manufacturing layered structure, manufacturing apparatus, and recording medium | |
| CN114570940B (en) | Valve core material increasing and decreasing method and valve core structure | |
| EP4245438A1 (en) | Formed part having inclined surface and forming method therefor | |
| AU2020253392B2 (en) | Systems and methods for non-continuous deposition of a component | |
| KR20150043564A (en) | Production method and production device for three-dimensionally shaped molded object | |
| CN105252145A (en) | Method and device for manufacturing complex-shaped parts by stacking sheet metal | |
| CN107127583A (en) | Ultrasonic cutting is applied to the equipment and processing method in powder feeding formula increase and decrease material composite manufacturing | |
| WO2017071316A1 (en) | 3d printing apparatus combining plasma melting and multi-axis milling processes based on internet signal transmission | |
| CN113751877B (en) | Multi-wire synchronous additive manufacturing method for laser-induced arc oscillation | |
| CN105463452A (en) | Method for forming laser rapidly-formed element | |
| CN110045703A (en) | A kind of electric arc increasing material manufacturing technique based on off-line programing | |
| CN110722253A (en) | Manufacturing method for manufacturing complex suspended structure supporting piece through electric arc additive hybrid manufacturing | |
| JP2002066844A (en) | Method of manufacturing discharge machining electrode using metal powder sintering type laminated molding | |
| US20230321915A1 (en) | Repositionable voxel alignment in non-continuous deposition process | |
| Milewski et al. | Application of a manufacturing model for the optimization of additive processing of Inconel alloy 690 | |
| Khan et al. | Effects of pillar-based substrate on the wire arc additive manufacturing process | |
| CN113492216A (en) | Additive forming method for labyrinth type regulating valve cage and valve cage obtained by additive forming method | |
| CN112893840A (en) | Selective laser melting forming conformal cooling water channel mould grafting manufacturing method | |
| Kumar et al. | Additive manufacturing with welding | |
| CN109530696B (en) | Selective laser melting forming method for substrate as part of part | |
| CN110253216A (en) | A kind of processing method of earpiece dust cover | |
| CN214768944U (en) | Additive manufacturing system | |
| US20230321918A1 (en) | As-deposited data model for directing machining after additive manufacturing | |
| KR102487431B1 (en) | Method for manufacturing aluminium die casting mold using wire-arc additive manufacturing process | |
| US20230321917A1 (en) | Systems and methods for non-continuous deposition of a component |
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 |