KR102042038B1 - Method for producing non- evaporable getter and non- evaporable getter produced thereby - Google Patents

Abstract

According to an embodiment of the present invention, a method of manufacturing a porous component includes designing a design structure of a porous component including a porous design region and a high density design region, and completely melting energy of a metal powder capable of forming the porous component design structure ( E) setting, forming a porous part molded body having a porous molding region and a high-density molding region by laminating a laminated material containing a metal powder according to the porous component design structure and the porous molding region and high density of the porous component molded body Providing different energies to each of the forming regions to form a porous component having a porous region and a high density region. Here, the porous molding region may be provided with a first energy less than the complete melt energy (E), and the high density molding region may be provided with a second energy higher than the complete melt energy (E).

Description

Method for producing porous parts and porous parts produced by the same {Method for producing non-evaporable getter and non-evaporable getter produced thereby}

The present invention relates to a method for manufacturing a porous component and a porous component manufactured thereby, and more particularly, to control the laminated molding process technology, the surface area having a high surface area and a high density or increased surface area in a complex structure are locally required. The present invention relates to a method for manufacturing a porous part capable of manufacturing a microstructure by a porous part and to improving the degree of freedom of the part shape, and to a porous part manufactured thereby.

In the high vacuum state, high vacuum is maintained only by removing residual gas as well as outgass such as hydrogen introduced from the outside. Therefore, a material that absorbs the gas remaining in the vacuum apparatus (contact getter) or forms a gas and a compound (dispersed getter) to maintain high vacuum is called getter. In other words, the getter may serve to chemically absorb residual gas and generated gas in a closed vacuum system to maintain high vacuum.

For example, the vacuum apparatus primarily forms a vacuum degree of about 5x10 ^-5 torr by a mechanical method using an exhaust cart, and secondly, activates a getter in the vacuum tube to lower the vacuum degree of the vacuum system to 5x10 ^-7 torr or less. Can be maintained. Most of the clean metal surfaces act as getters and are used for vacuum holding of vacuum tubes and ion pumps.

Getters are divided into evaporable getters and non-evaporable getters. Evaporation type getters have low melting point because the getter material is evaporated in the activation process at high temperature to remove impurities, and barium and other alloys are easily used for evaporation, and vacuum of cathode ray tube is mainly used. It is often used for fats and oils.

Non-evaporable getters are used when evaporative getters are difficult to use, i.e. when the device is contaminated by evaporated getters or when the activation process temperature is too high. Since the non-evaporable getter does not need to evaporate the getter itself like an evaporative getter, a zirconium alloy having a high melting point and excellent gas absorption ability in the solid state is mainly used.

Such non-evaporable getters have been applied to a wide range of lamps, thermos, vacuum containers, etc. In particular, plasma emission, which requires the field emission display (FED) and the purification of impurity gases, is essential. Used in flat panel displays such as plasma displays (PDPs), they play an important role in increasing the performance, efficiency and lifespan of devices.

Techniques for improving getter performance include alloy design technology for using metals with excellent adsorption of residual gas, process control technology for maintaining high purity of finished products after manufacturing process, and structure for designing product structure with wide specific surface area. It requires design skills.

Among them, the important factor that improves the getter's performance is specific surface area, which means the surface area in contact with the residual gas in high vacuum. Therefore, the larger the specific surface area, the higher the residual gas absorption capacity can maintain the desired degree of vacuum.

The materials used in the non-evaporable getters are titanium, zirconium, and the like, but their pure powders cannot be used as getters because of their low gas absorption ability, and alloys based on them are used, mainly zirconium-based alloys. That is, a Zr-Al alloy which is a zirconium-based binary alloy, and a Zr-V-Fe alloy which is a base alloy are used. As described above, the getter manufacturing method cannot produce a getter using a pure metal, and also has to go through several steps in order to manufacture an alloy, and has a disadvantage in that the specific surface area is limited.

In addition, the porous part such as metal foam can be formed by high temperature sintering, foaming process or the like. However, the above process is limited in the manufacturable shape. That is, there is a limit to manufacturing in a complicated shape. In addition, there is a problem in that the non-diffusion getter and the high-density portion are respectively formed, and the non-diffusion getter is fastened to the high-density component.

Therefore, there is a need for improvement of a method for easily forming a porous part without being constrained by a complicated shape and without connecting a non-diffusion getter to a high density part.

The technical problem to be achieved by the present invention is a method of manufacturing a porous component capable of producing a microstructure porous by locally manufacturing a portion having a high surface area and a high density or increased surface area in a complex structure by controlling a laminate molding process technology. To provide.

The present invention also provides a method of manufacturing a porous part in which the porous region and the high density region are integrally manufactured at one time while maintaining the shape of a molded body.

In addition, it is to provide a method for producing a porous component that can improve the degree of freedom of the shape of the component and the porous component produced thereby.

The technical problem to be achieved by the present invention is not limited to the technical problem mentioned above, and other technical problems not mentioned above may be clearly understood by those skilled in the art from the following description. There will be.

In order to achieve the above technical problem, a method of manufacturing a porous component according to an embodiment of the present invention, the step of designing a design structure of a porous component including a porous design region and a high density design region, to form the porous component design structure Setting a complete melting energy (E) of the metal powder, wherein the laminated material including the metal powder is laminated according to the porous part design structure to form a porous part molded body having a porous forming area and a high density forming area by a lamination method. And providing different energies to the porous molded area and the high density molded area of the porous part molded body, respectively, to form a porous part having a porous area and a high density area.

Here, the porous molding region may be provided with a first energy less than the complete melt energy (E), and the high density molding region may be provided with a second energy higher than the complete melt energy (E).

The first energy may be provided below the complete melt energy (E) to 0.2 × the complete melt energy (E), and the second energy may be provided above the complete melt energy (E).

In the step of designing a structure of a porous part having a porous area and a high density area, the structure of the porous part may be designed such that the porous design area and the high density design area are formed of the same material.

In the step of setting the complete melting energy (E) of the metal powder to form the porous component design structure, the metal powder is the metal powder is titanium (Ti), titanium (Ti) -based alloy, zirconium (Zr) , Zirconium (Zr) alloy, barium (Ba), barium (Ba) alloy, magnesium (Mg), magnesium (Mg) alloy, vanadium (V), vanadium (V) alloy, iron (Fe) It may be at least one selected from the group consisting of iron (Fe) -based alloys and mixtures thereof.

In the step of setting the complete melt energy (E) of the metal powder capable of forming the porous component design structure, through the setting of the complete melt energy (E) of the metal powder, the densification and porosity energy of the metal powder And determining information for controlling the porosity density of the porous design region by controlling the porosity energy.

In the step of forming a porous part molded body having a porous molding region and a high-density molding region by the laminate molding method of the laminated material containing the metal powder according to the porous component design structure, the porous molding region is in the design structure of the porous component Accordingly, the same region as the porous design region may be formed, and the high density molding region may be formed as the same region as the high density design region according to the design structure of the porous component.

In the step of forming a porous part molded body having a porous molding region and a high-density molding region by laminating a laminated material including the metal powder according to the porous component design structure, the laminated molding method may be a 3D printing method.

In the step of providing different energy to the porous molding region and the high-density molding region of the porous part molded body to form a porous component having a porous region and a high-density region, the device for providing energy is a selective laser melting (Selective Laser) Any device selected from the group consisting of a Melting Machine SLM device and a selective laser sintering machine SLS device can be used.

In the step of providing different energy to the porous region and the high-density region of the porous part molded body, when the porous part molded body is formed of pure titanium, the complete melt energy of the porous part molded body, Energy in the range of 5.5 to 6.5 J / mm ³ per unit cubic meter can be provided.

The energy providing apparatus for providing the complete melt energy to the porous part molded body may have a scan speed in the range of 0.1 m / s to 8 m / s and a source power in the range of 50 W to 1 KW.

In the step of providing different energy to the porous molded area and the high-density molded area of the porous part molded body to form a porous part having a porous area and a high density area, the porous part by providing different energy to the porous part molded body While maintaining the shape of the molded body, the porous part in which the porous region and the high density region are integrally formed in the molded body may be manufactured at a time.

In order to achieve the above technical problem, the porous component according to another embodiment of the present invention is formed by the method of manufacturing the porous component.

The porous component may be integrally formed with the porous region and the high density region.

According to an embodiment of the present invention, the method of manufacturing a porous part is capable of producing a microstructure porous by locally manufacturing a porous part having a high surface area and a high density or increased surface area in a complex structure by controlling a molding process technology. It works.

In addition, the method of manufacturing a porous part according to an embodiment of the present invention provides a different energy to the porous part molded body to produce a porous part in which the porous area and the high density area are integrally formed while maintaining the shape of the porous part molded body at one time. Can be.

In addition, the method of manufacturing a porous part and the porous part manufactured thereby have a high surface area under the control of a laminated molding process technology and locally increase the degree of freedom in the shape of the part by locally manufacturing a required part of the porous property having increased density or surface area in a complex structure. It can be effected.

The effects of the present invention are not limited to the above-described effects, but should be understood to include all the effects deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a flow chart illustrating a method of manufacturing a porous component according to an embodiment of the present invention.
2 to 6 is a process chart showing a method of manufacturing a porous component according to an embodiment of the present invention.
Figure 7 is a photograph taken of the porous density of the surface of the porous component formed by the method of manufacturing a porous component according to an embodiment of the present invention.
8 is a photograph of a porous part manufactured by the method of manufacturing a porous part according to an exemplary embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to be "connected (connected, contacted, coupled)" with another part, it is not only "directly connected" but also "indirectly connected" with another member in between. "Includes the case. In addition, when a part is said to "include" a certain component, this means that it may further include other components, without excluding the other components unless otherwise stated.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. As used herein, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described on the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a flow chart illustrating a method of manufacturing a porous component according to an embodiment of the present invention, Figures 2 to 6 is a process chart showing a method of manufacturing a porous component according to an embodiment of the present invention, Figure 7 is a present invention The photographs of the porous density of the surface of the porous component formed by the method of manufacturing a porous component according to the embodiment of the.

Referring to FIG. 1, a method of manufacturing a porous component 10 according to an exemplary embodiment of the present invention may include a design structure of a porous component including a porous design region 120-1 and a high density design region 170-1. 1) designing (S100), setting the complete melting energy (E) of the metal powder capable of forming the porous component design structure (10-1) (S200), the porous component design structure (10- 1) forming a porous part molded body 10-2 having a porous molding region 120-2 and a high-density molding region 170-2 by laminating a laminated material including the metal powder according to 1) (S300). And a porous region 120 and a high density region 170 by providing different energies to the porous molding region 120-2 and the high density molding region 170-2 of the porous part molded body 10-2, respectively. Forming a porous part 10 includes a step (S400).

Here, the porous molding region 120-2 is provided with a first energy E1 less than the complete melting energy E, and the high density molding region 170-2 is provided with a first energy higher than the complete melting energy E. 2 energy E2 may be provided.

Hereinafter, the flowchart of FIG. 1 and the process diagrams of FIGS. 2 to 6 will be matched to each other.

1 and 2, a method of manufacturing a porous component 10 according to an embodiment of the present invention has a design structure of a porous component including a porous design region 120-1 and a high density design region 170-1. Designing step (10-1) (S100) is performed.

The design structure 10-1 of the porous part may be a structure having a complicated shape.

Herein, the porous structure 120-1 and the high-density design region 170-1 are integrally formed in the design structure 10-1 of the porous part, and since they are integral, the connection structure is not formed in the connecting portion.

Specifically, in the prior art, the porous design region and the high-density design region were manufactured under different forming conditions due to different densities, and a connection process for connecting them was to be performed. Due to the above connection process, there is a disadvantage in that the manufacturing time increases and the manufacturing cost also increases.

However, the design structure 10-1 of the porous part of the method of manufacturing the porous part 10 according to the present invention may be made of the same material as the porous design area 120-1 and the high density design area 170-1. Can be designed to be formed,

As such, in the method of manufacturing the porous component 10 according to the present invention, since there is no connection process for connecting the porous design region 120-1 and the high density design region 170-1, the manufacturing cost and the manufacturing time are as follows. There is an effect that can be reduced.

Furthermore, since the design structure 10-1 of the porous component of the porous component 10 according to the embodiment of the present invention can be manufactured in a complicated shape, the degree of freedom of the component shape of the porous component 10 can be improved, and Since the shape is manufactured, first, the design structure 10-1 of the porous component 10 is designed, and the design of setting the porous design region 120-1 and the high density design region 170-1 for the structure is performed. .

1 and 3, a method of manufacturing a porous component 10 according to an embodiment of the present invention provides a complete melting energy (E) of a metal powder capable of forming the porous component design structure 10-1. The setting step (S200) is performed.

Metal powders capable of forming the porous part design structure 10-1 may be selected and their complete melt energy E may be set. Wherein the metal powder is titanium (Ti), titanium (Ti) alloy, zirconium (Zr), zirconium (Zr) alloy, barium (Ba), barium (Ba) -based alloy, magnesium (Mg), magnesium (Mg) It may be at least one selected from the group consisting of a base alloy, vanadium (V), a vanadium (V) alloy, iron (Fe), iron (Fe) alloy and mixtures thereof.

Here, pure titanium will be described as an example, but the present invention is not limited thereto, and the above-described metal powders may be selected and used.

The density of the metal powder and the porosity of the metal powder are determined by setting the complete melting energy (E) of the metal powder, and the porosity of the porous design region 120-1 is controlled by controlling the porosity energy. It may be a step of identifying information.

Specifically, when a greater energy is provided to the metal powder relative to the complete melt energy E, the metal powder may be completely melted and densified. And when less energy is provided to the metal powder, the metal powder may not be densified and may be formed porous.

Furthermore, it is possible to grasp information that can control the porosity density through the control of the energy. Specific embodiments thereof will be described later in detail.

1 and 4, a method of manufacturing a porous part 10 according to an embodiment of the present invention is a porous material laminated by a molding method comprising a laminate material including the metal powder according to the porous part design structure (10-1) In step S300, the porous part molded body 10-2 having the molding region 120-2 and the high density molding region 170-2 is formed.

The porous molding region 120-2 is formed in the same region as the porous design region 120-1 according to the design structure 10-1 of the porous component, and the high density molding region 170-2 is formed. According to the design structure 10-1 of the porous component, the same region as the high density design region 170-1 may be formed.

The additive molding method may be a 3D printing method. As such, the porous part molded body 10-2 may be formed in various or complicated structures through the 3D printing method.

In the method of manufacturing the porous part 10 according to the embodiment of the present invention, the microstructure is made porous by locally manufacturing a required part of the porous part having a high surface area and a high density or a high surface area in a complicated structure by controlling the molding process. Manufacturing is possible.

In addition, the method of manufacturing the porous part 10 and the porous part 10 manufactured thereby have a high surface area and control the laminated molding process technology, and by locally manufacturing a part where the porous property with increased density or surface area is required in a complex structure. The degree of freedom of the part shape can be improved.

Next, referring to FIGS. 1 and 5 to 7, different energies are provided to the porous molding region 120-2 and the high density molding region 170-2 of the porous part molded body 10-2, respectively. In step S400, a porous part 10 having a region 120 and a high density region 170 is formed. For ease of explanation, the description will be made with reference to FIG. 3.

In the step of providing different energy to the porous molding region 120-2 and the high density molding region 170-2 of the porous part molded body 10-2, the device for providing the energy may be provided by selective laser melting. Any device selected from the group consisting of a Laser Melting Machine SLM device and a selective laser sintering machine SLS device can be used.

For example, the Selective Laser Melting Machine SLM device may provide the laser energy to the selective region of the porous part molded body 10-2 by adjusting the intensity of the laser.

Specifically, when the laser energy was selectively provided, the metal powder was completely melted, and the experiment was performed. The data on the fully melted energy according to the experimental example is summarized in Table 1 below.

However, Table 1 below is only an experimental example and the actual complete melt energy may be different depending on the material and process conditions of the metal powder. In other words, Table 1 was experimented within the target range to understand the information on the more precise complete melt energy.

Table 1 is an experimental example, using pure titanium powder (Ti) as a material for forming the porous part molded body 10-2, and the selective to determine the complete melting energy for the pure titanium powder It is a table showing the results of measurement by setting the source power of the Selective Laser Melting Machine SLM device in the range of 50 to 500W, and the scan speed in the range of 1000 to 12000 mm / s. And the result of Table 1 is shown in FIG.

Referring to Table 1 and FIG. 3, the first energy E1 is provided below the complete melt energy E to 0.2 × the complete melt energy E, and the second energy E2 is completely melted. More than energy E may be provided.

As shown in Table 1, in the porous part 10 according to the experimental example of the present invention based on Table 1, the high-density molding region 170-2 of the porous part molded body 10-2 is 1.5 to per cubic meter When the energy of 2.0 J or more is provided, the high density region 170 of the porous component 10 may be formed.

In other words, according to the above table, of 1.5 to 2.0J / mm ³ energy provides a complete melting energy (E) is the energy of 1.5 to 2.0 J / mm is greater than the ^third energy-density molding area (170-2) because of the If so, the high density region 170 may be formed.

However, in practice, based on Table 1, when the porous part 10 according to the embodiment of the present invention uses pure titanium powder, the high-density forming region 170-2 of the porous part molded body 10-2 At least 5.5 to 6.5 J per cubic meter of energy should be provided, the scan speed should range from 0.1 m / s to 8 m / s, and the source power should range from 50 W to 1 KW to provide a high density region 170 of the porous component 10. ) May be formed.

In other words, the high density region 170 may be formed by supplying the energy indicated in the lower left of Table 1 to the high density molding region 170-2 based on 1.76 tested as the complete melting energy E of Table 1. In summary, the high density region 170 of the porous part 10 may be formed only when the second energy E2 ≥ complete melting energy E is provided in the high density molding region 170-2.

As an experimental example, the porous molding region 120-2 of the porous component molded body 10-2 has an energy of 1.5 to less than 2.0 J per cubic meter, that is, less than the complete melting energy E to 0.2 x the complete melting. Energy E must be provided to form the porous region 120 of the porous component 10.

Since the energy of 1.5 to 2.0 J / mm ³ measured in the experimental example is the energy for the complete melt energy (E), the energy of less than 1.5 to 2.0 J, that is, less than the complete melt energy (E) to 0.2 x the complete melt Energy E must be provided to the porous molding region 120-2 to form the porous region 170.

In other words, the porous region 170 may be formed by providing the porous molding region 120-2 with the energy displayed on the upper right side of Table 1 based on 1.76 indicated as the complete melting energy E of Table 1.

In summary, the first energy E1 may be expressed as E> 0.2E. That is, when an energy greater than the complete melting energy E is provided to the porous molding region 120-2, the porous molding region 120-2 is melted and densified to form the porous region 120, and 0.2 x above If an energy lower than the complete melt energy (E) is provided, it may be unmelted and not porous.

Based on the above, when the porous part 10 according to the exemplary embodiment of the present invention uses pure titanium powder, 5.5 parts per cubic meter are included in the high-density molding area 170-2 of the porous part molded body 10-2. Energy of at least 6.5 J should be provided, scan speed should be in the range of 0.1 m / s to 8 m / s, and source power should be in the range of 50 W to 1 KW to form the high density region 170 of the porous part 10. It can be seen that.

1 and 5 to 7, the porosity of the porous region 120 is controlled by adjusting the intensity of the first energy E1 which is less than the complete melt energy E to 0.2 × complete melt energy E. Can be. The porosity density can be lowered as the energy adjacent to the complete melt energy (E) is provided, and the porosity density can be increased as the energy adjacent to 0.2x full melt energy (E) is provided.

Therefore, in the method of manufacturing the porous part 10 according to the embodiment of the present invention, by providing different energy to the porous part molded part 10-2, the porous area 120 is maintained while maintaining the shape of the porous part molded part 10-2. ) And the porous part 10 in which the high density region 170 is integrally formed.

As described above, in the method of manufacturing a porous part according to an embodiment of the present invention, the microstructure may be formed by locally manufacturing a porous part having a high surface area and a high density or increased surface area in a complicated structure by controlling a molding process technology. It may be possible to manufacture.

In addition, the method of manufacturing a porous part and the porous part manufactured thereby have a high surface area under the control of a laminated molding process technology and locally increase the degree of freedom in the shape of the part by locally manufacturing a required part of the porous property having increased density or surface area in a complex structure. You can.

8 is a photograph of a porous part manufactured by the method of manufacturing a porous part according to an exemplary embodiment of the present invention. Here, FIG. 8 will be described with reference to FIGS. 1 to 7 to avoid overlapping description and for easy description.

Referring to FIG. 8, the porous component 10 according to the embodiment of the present invention may include a porous region 120 and a high density region 170. Referring to FIG. 5, the porous component 10 may form the porous region 120 and the high density region 170 by changing the process conditions of the energy providing apparatus.

In the porous component 10 according to the exemplary embodiment of the present invention, the porous region 120 and the high density region 170 may be integrally formed.

As described above, the porous part 10 according to the embodiment of the present invention has a high surface area and a porous microstructure having a high density or a high surface area in a complicated structure by locally controlling a molding process technology. It may include.

In addition, the porous part 10 may realize various parts shapes freely by locally manufacturing a required portion of the porous property having a high surface area and high density or increased surface area in a complicated structure by controlling the molding process technology.

The foregoing description of the present invention is intended for illustration, and it will be understood by those skilled in the art that the present invention may be easily modified in other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is represented by the following claims, and it should be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the present invention.

10: porous parts
10-1: porous part design structure
10-2: porous part molded body
120: porous region
120-1: porous design area
120-2: porous forming zone
170: high density area
170-1: High Density Design Area
170-2: high density forming area
E: complete melt energy
E1: first energy
E2: second energy

Claims (13)

Designing a design structure of the porous component including the porous design region and the high density design region;
Setting the complete melt energy (E) of the metal powder to form the porous part design structure;
Forming a porous part molded body having a porous molding area and a high-density molding area by laminating a laminated material including the metal powder according to the porous part design structure; And
Forming a porous part having a porous area and a high density area by providing different energies to the porous molded area and the high density molded area of the porous part molded body, respectively; Including,
The porous molding region is provided with a first energy less than the complete melt energy (E), the high density molding region is characterized in that the second energy higher than the complete melt energy (E),
In the step of providing different energy to the porous region and the high-density region of the porous part molded body, the porous part molded body is formed of pure titanium, wherein the complete melt energy of the porous part molded body is a unit of the porous part molded body Method for producing a porous component, characterized in that the energy provided in the range of 5.5 to 6.5 J / mm ³ per cubic meter. The method of claim 1,
The first energy is provided below the full melt energy (E) to 0.2 × the full melt energy (E),
The second energy is a method of producing a porous component, characterized in that the energy of more than the complete melt energy (E) is provided. The method of claim 1,
In the step of designing a structure of a porous component having a porous region and a high density region,
The structure of the porous component is a porous component manufacturing method characterized in that the porous design region and the high-density design region is designed to be formed of the same material. delete The method of claim 1,
In the step of setting the complete melting energy (E) of the metal powder capable of forming the porous component design structure,
Grasping the densification energy and the porosity energy of the metal powder by setting the complete melting energy (E) of the metal powder, and grasping the information for controlling the porosity density of the porous design region by controlling the porosity energy. Method for producing a porous part, characterized in that. The method of claim 1,
In the step of forming a porous part molded body having a porous molding region and a high-density molding region by a laminate molding method of the laminated material including the metal powder according to the porous component design structure,
The porous molding region is formed in the same region as the porous design region according to the design structure of the porous component,
The high-density forming region is formed in the same region as the high-density design region according to the design structure of the porous component manufacturing method of the porous component. The method of claim 1,
In the step of forming a porous part molded body having a porous molding region and a high-density molding region by a laminate molding method of the laminated material including the metal powder according to the porous component design structure,
The additive manufacturing method of the porous part, characterized in that the 3D printing method. The method of claim 1,
In the step of forming a porous component having a porous region and a high density region by providing different energy to the porous molding region and the high-density molding region of the porous part molded body, respectively,
The device for providing energy is characterized by using any one device selected from the group consisting of a Selective Laser Melting Machine SLM device and a Selective laser sintering Machine SLS device. Manufacturing method. delete The method of claim 1,
The energy providing device for providing the complete melt energy to the porous part molded body,
Method of producing a porous component, characterized in that the scan speed is in the range of 0.1m / s to 8m / s, the source power is in the range of 50W to 1KW. The method of claim 1,
In the step of forming a porous component having a porous region and a high density region by providing different energy to the porous molding region and the high-density molding region of the porous part molded body, respectively,
The method for producing a porous part, characterized in that for producing a porous part integrally formed with the porous region and the high-density region in the porous part molded body while maintaining the shape of the porous part molded body by providing different energy to the porous part molded body. A porous component, characterized in that formed by the manufacturing method of claim 1. The method of claim 12,
Porous component, characterized in that the porous region and the high-density region is formed integrally.

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