CN111001803A - Ventilating mold with conformal cooling water channel and manufacturing method thereof - Google Patents
Ventilating mold with conformal cooling water channel and manufacturing method thereof Download PDFInfo
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- CN111001803A CN111001803A CN201911244640.6A CN201911244640A CN111001803A CN 111001803 A CN111001803 A CN 111001803A CN 201911244640 A CN201911244640 A CN 201911244640A CN 111001803 A CN111001803 A CN 111001803A
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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
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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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/007—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3835—Designing moulds, e.g. using CAD-CAM
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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
- B33Y10/00—Processes of additive manufacturing
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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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
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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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
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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
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
- B22F10/366—Scanning parameters, e.g. hatch distance or scanning strategy
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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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Abstract
The application belongs to the technical field of mold processing, and particularly relates to a breathable mold with a conformal cooling water channel and a manufacturing method thereof, wherein the manufacturing method comprises the following steps: s1, establishing a mould data model; s2, dividing the mould data model into a conformal waterway data model and a mould main body data model; s3, combining the conformal waterway data model and the mould main body data model to form an assembly body data model; s4, importing the assembly data model into a 3D printing device; s5, setting the printing parameters of the form-following waterway data model as compact printing parameters; s6: setting the printing parameters of the mould main body data model as the printing parameters of the breathable piece; s7 printing and forming the air permeable mold. The structure of the main body part of the finally printed air-permeable mould with the conformal cooling water path has air permeability. Meanwhile, the structure of the conformal waterway part can be compact, so that the cooling medium with pressure circulating in the conformal waterway can be prevented from seeping out of the mold from the conformal waterway part.
Description
Technical Field
The application belongs to the technical field of mold processing, and particularly relates to a breathable mold with a conformal cooling water channel and a manufacturing method thereof.
Background
The injection mold is the key to realize the injection molding process, and the cooling and air permeability properties of the injection mold need to be focused during the manufacturing process of the injection mold. For cooling, the uniform cooling of the mold can be realized by designing a conformal cold water channel in the mold. For gas permeability, the gas permeability die steel is prepared by a 3D printing technology.
In the prior art, when a cooling medium with a certain pressure flows in the conformal water path, the cooling medium is easy to seep out through a pore structure inside the breathable die steel under the action of the pressure because the injection die is made of the breathable die steel, and further the injection process is seriously damaged.
Content of application
The application aims to provide a ventilating mold with a shape following cooling water path and a manufacturing method thereof, and aims to solve the technical problem that a cooling medium circulating in the shape following water path of an injection mold in the prior art is easy to seep out through a pore structure in the injection mold under the action of pressure, so that the injection molding process is seriously damaged.
In order to achieve the purpose, the technical scheme adopted by the application is as follows: a manufacturing method of an air-permeable mold with a conformal cooling water channel comprises the following steps:
s1: establishing a mould data model of an injection mould with a conformal waterway;
s2: dividing the mould data model into a conformal waterway data model and a mould main body data model;
s3: combining the conformal waterway data model and the mould main body data model to form an assembly body data model;
s4: importing the assembly data model into 3D printing equipment;
s5: setting printing parameters of the conformal waterway data model of the assembly body data model in the 3D printing equipment as compact printing parameters;
s6: setting the printing parameters of the mould main body data model of the assembly body data model in the 3D printing equipment as the printing parameters of the breathable piece;
s7: and printing and forming the air-permeable mould with the conformal cooling water channel according to the compact printing parameters and the air-permeable printing parameters.
Optionally, the step S1 includes:
s11: manufacturing a solid model of the injection mold;
s12: and establishing the mould data model according to the entity model of the injection mould.
Optionally, in the step S12, the solid model of the injection mold is scanned by a three-dimensional scanner to build the mold data model.
Optionally, in the step S2, the conformal waterway data model and the mold main body data model are both three-dimensional data models.
Optionally, the step S4 includes:
s41: converting the format of the assembly data model into an STL format;
s42: and importing the assembly data model converted into the STL format into the 3D printing equipment.
Optionally, the 3D printing device prints the air-permeable mold layer by layer through a grid-shaped scanning melt channel.
Optionally, the grid-shaped scanning melting channel includes a plurality of transverse scanning melting channels arranged at intervals and a plurality of longitudinal scanning melting channels arranged at intervals, each transverse scanning melting channel and each longitudinal scanning melting channel are arranged in a staggered manner, and a plurality of pores are formed around each transverse scanning melting channel and each longitudinal scanning melting channel.
Optionally, the gas permeable member printing parameters and the compact member printing parameters each include a scanning pitch parameter, a laser power parameter, a scanning rate parameter, and a powder layer thickness parameter;
the scanning interval parameter of the printing parameter of the breathable piece is 0.15mm, and the scanning interval parameter of the printing parameter of the compact piece is 0.11 mm;
the scanning rate parameter of the printing parameter of the air-permeable piece is 1150mm/s, and the scanning rate parameter of the printing parameter of the compact piece is 1010 mm/s;
the laser power parameter of the printing parameter of the air-permeable part is 280W, and the laser power parameter of the printing parameter of the dense part is 305W.
Optionally, the gas permeable piece printing parameters and the compact piece printing parameters further include powder layer thickness parameters, and the powder layer thickness parameters of the gas permeable piece printing parameters and the powder layer thickness parameters of the compact piece printing parameters are both 0.05 mm.
The beneficial effect of this application: according to the manufacturing method of the breathable mold with the conformal cooling water channel, the mold data model of the injection mold with the conformal cooling water channel is built, and then the mold data model is divided into the conformal water channel data model and the mold main body data model, so that the data model of the conformal water channel part is independently separated from the mold main body, then the two data models are led into the 3D printing equipment in the form of an assembly body data model, the 3D printing equipment can set compact piece printing parameters and breathable piece printing parameters aiming at the conformal water channel data model and the mold main body data model respectively, and the breathable mold with the conformal cooling water channel is finally printed. Meanwhile, the structure of the shape-following water path part can be compact, so that the cooling medium which circulates in the shape-following water path and has pressure can be effectively prevented from seeping out of the mold from the shape-following water path part, and the stable and reliable performance of the injection molding process is further ensured.
Another technical scheme adopted by the application is as follows: the ventilation mold with the conformal cooling water channel is manufactured by the manufacturing method of the ventilation mold with the conformal cooling water channel.
The ventilation mold with the conformal cooling water channel is manufactured by the method, so that the whole ventilation performance of the mold is guaranteed, and further, the surface of a product formed by injection molding of the mold is guaranteed not to have air holes. On the other hand, the structure density of the shape following water path part in the injection molding machine is improved, the cooling medium in the shape following water path is ensured not to seep out of the mold, and the injection molding process is further ensured to be carried out stably and reliably.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a process flow diagram of a method for manufacturing an air-permeable mold with a conformal cooling water channel according to an embodiment of the present application;
FIG. 2 is a further flowchart of step S1 of FIG. 1;
FIG. 3 is a further flowchart of step S4 of FIG. 1;
FIG. 4 is a schematic diagram of a mold data model of a method for manufacturing an air-permeable mold with a conformal cooling water channel according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a mold body data model of a method for manufacturing an air-permeable mold with a conformal cooling water channel according to an embodiment of the present application;
fig. 6 is a schematic diagram of a conformal water channel data model of a manufacturing method of an air-permeable mold with a conformal cooling water channel according to an embodiment of the present disclosure;
fig. 7 is a schematic diagram of an assembly data model of a method for manufacturing an air-permeable mold with conformal cooling water channels according to an embodiment of the present application;
fig. 8 is a schematic diagram of a grid-shaped scanning melt channel in the method for manufacturing the air-permeable mold with the conformal cooling water channel according to the embodiment of the present application.
Wherein, in the figures, the respective reference numerals:
10-mould data model 11-conformal cooling water path 12-mould main body data model
13-conformal waterway data model 14-latticed scanning melting channel 15-longitudinal scanning melting channel
16-transverse scanning of the melt channel 17-pores 20-assembly data model.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to fig. 1-8 are exemplary and intended to be used to illustrate the present application and should not be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
As shown in fig. 1 to 3, an embodiment of the present application provides a method for manufacturing a ventilation mold with a conformal cooling water channel 11, including the following steps:
s1: establishing a mould data model 10 of an injection mould with a conformal waterway; specifically, the mold data model 10 is designed and built by three-dimensional modeling software.
S2: dividing the mould data model 10 into a conformal waterway data model 13 and a mould main body data model 12; specifically, as shown in fig. 4 to 6, in the three-dimensional modeling software, the area around the conformal waterway may be separated from the mold data model 10 as the conformal waterway data model 13 alone.
As shown in fig. 7, S3: combining the conformal waterway data model 13 and the mould main body data model 12 to form an assembly body data model 20;
s4: importing an assembly data model 20 into a 3D printing device; form assembly body data model 20 through merging form following shape water route data model 13 and mould main part data model 12, be convenient for like this in later stage 3D printing process, 3D printing apparatus effectively discerns the following shape water route region and the mould main part region of waiting to print the mould.
S5: setting printing parameters of a conformal waterway data model 13 of an assembly body data model 20 as compact printing parameters in 3D printing equipment;
s6: setting the printing parameters of the mould main body data model 12 of the assembly body data model 20 in the 3D printing equipment as the printing parameters of the breathable piece;
s7: and printing and forming the ventilation mould with the conformal cooling water channel 11 according to the printing parameters of the compact part and the printing parameters of the ventilation part.
The following further describes a method for manufacturing the air-permeable mold having the conformal cooling water channel 11 according to the embodiment of the present application: according to the manufacturing method of the air-permeable mold with the conformal cooling water channel 11, the mold data model 10 of the injection mold with the conformal water channel is built, and then the mold data model 10 is divided into the conformal water channel data model 13 and the mold main body data model 12, so that the data model of the conformal water channel part is independently separated from the mold main body, and then the two data models are led into the 3D printing equipment in the form of the assembly body data model 20, so that the 3D printing equipment can respectively set the compact printing parameters and the air-permeable printing parameters aiming at the conformal water channel data model 13 and the mold main body data model 12, and the finally printed air-permeable mold with the conformal cooling water channel 11 has the air-permeable performance of the organization of the main body part, and the integral air-permeable performance of the mold is guaranteed. Meanwhile, the structure of the shape-following water path part can be compact, so that the cooling medium which circulates in the shape-following water path and has pressure can be effectively prevented from seeping out of the mold from the shape-following water path part, and the stable and reliable performance of the injection molding process is further ensured.
In other embodiments of the present application, as shown in fig. 2, step S1 includes:
s11: manufacturing a solid model of an injection mold;
s12: a mold data model 10 is established from the solid model of the injection mold.
Specifically, as another establishing method of the mold data model 10, different from the method directly establishing through three-dimensional modeling software, the method establishes the physical model of the injection mold in advance, so that the specific structure and design points of the model cavity and other parts can be determined more intuitively, and the injection experiment and the like can be performed to test the actual performance. After the solid model is built, the mold data model 10 is built according to the solid model, so that the mold data model 10 can be successfully built at one time.
In other embodiments of the present application, in step S12, a solid model of an injection mold is scanned by a three-dimensional scanner to create mold data model 10. Specifically, in the process of building the solid model to the mold data model 10, the solid model can be scanned by the handheld three-dimensional scanner to directly derive the mold data model 10, which is convenient and fast.
In other embodiments of the present application, the conformal waterway data model 13 and the mold body data model 12 are both three-dimensional data models. Specifically, the conformal waterway data model 13 and the mold main body data model 12 are all DXF format three-dimensional data models, STP format three-dimensional data models, or IGS format three-dimensional data models.
In other embodiments of the present application, as shown in fig. 3, step S4 includes:
s41: converting the format of assembly data model 20 to STL format;
s42: the assembly data model 20 converted into the STL format is imported into the 3D printing apparatus.
In other embodiments of the present application, as shown in fig. 8, the 3D printing device prints the air-permeable mold layer by layer through the grid-like scanning melt channel 14. Specifically, the breathable mold is printed layer by layer in a grid scanning melting channel 14 form, so that each grid area of the grid scanning melting channel 14 can finally form the pore 17 structure of the mold, and the breathability of the mold is further ensured.
Alternatively, the grid-shaped scanning melting channel 14 may specifically include a plurality of transverse scanning melting channels 16 arranged at intervals and a plurality of longitudinal scanning melting channels 15 arranged at intervals, each transverse scanning melting channel 16 and each longitudinal scanning melting channel 15 are arranged in a staggered manner, and a plurality of apertures 17 are formed around each transverse scanning melting channel 16 and each longitudinal scanning melting channel 15.
In other embodiments of the present application, as shown in fig. 8, the vent print parameters and the compact print parameters each include a scan spacing parameter, a laser power parameter, a scan rate parameter, and a powder layer thickness parameter; the scanning interval parameter of the printing parameter of the air-permeable piece is 0.15mm, and the scanning interval parameter of the printing parameter of the compact piece is 0.11 mm; the scanning rate parameter of the printing parameter of the air-permeable piece is 1150mm/s, and the scanning rate parameter of the printing parameter of the dense piece is 1010 mm/s; the laser power parameter of the printing parameter of the air-permeable part is 280W, and the laser power parameter of the printing parameter of the dense part is 305W; the powder layer thickness parameter of the printing parameter of the air-permeable part and the powder layer thickness parameter of the printing parameter of the compact part are both 0.05 mm. Wherein the scanning interval parameter of the printing parameter of the breathable piece is larger than that of the printing parameter of the compact piece; this ensures that the pores 17 of the structure of the main body portion of the print-formed mold are large in size, thereby ensuring the air permeability thereof. Meanwhile, the pores 17 of the structure of the conformal waterway part of the mold are smaller, so that the compactness is higher. Meanwhile, the scanning rate parameter of the printing parameter of the breathable piece is larger than that of the printing parameter of the compact piece, and the laser power parameter of the printing parameter of the breathable piece is smaller than that of the printing parameter of the compact piece. Thus, the width of the melt channel formed by the main body part of the mould during printing is narrower, the size of the pores 17 of the structure of the main body part of the mould is further ensured to be larger, and the air permeability of the main body part of the mould is further improved.
The embodiment of the application also provides a ventilating mold with the conformal cooling water channel 11, which is manufactured by the manufacturing method of the ventilating mold with the conformal cooling water channel 11.
The ventilation mold with the conformal cooling water channel 11 is manufactured by the method, so that on one hand, the whole ventilation performance of the mold is guaranteed, and further, the surface of a product formed by injection molding of the mold is guaranteed not to have air holes. On the other hand, the structure density of the shape following water path part in the injection molding machine is improved, the cooling medium in the shape following water path is ensured not to seep out of the mold, and the injection molding process is further ensured to be carried out stably and reliably.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed.
Claims (10)
1. A manufacturing method of a breathable mold with a conformal cooling water channel is characterized in that: the method comprises the following steps:
s1: establishing a mould data model of an injection mould with a conformal waterway;
s2: dividing the mould data model into a conformal waterway data model and a mould main body data model;
s3: combining the conformal waterway data model and the mould main body data model to form an assembly body data model;
s4: importing the assembly data model into 3D printing equipment;
s5: setting printing parameters of the conformal waterway data model of the assembly body data model in the 3D printing equipment as compact printing parameters;
s6: setting the printing parameters of the mould main body data model of the assembly body data model in the 3D printing equipment as the printing parameters of the breathable piece;
s7: and printing and forming the air-permeable mould with the conformal cooling water channel according to the compact printing parameters and the air-permeable printing parameters.
2. The method for manufacturing the air-permeable mold with the conformal cooling water channel according to claim 1, wherein the method comprises the following steps: the step S1 includes:
s11: manufacturing a solid model of the injection mold;
s12: and establishing the mould data model according to the entity model of the injection mould.
3. The method for manufacturing the air-permeable mold with the conformal cooling water channel according to claim 2, wherein the method comprises the following steps: in the step S12, the solid model of the injection mold is scanned by a three-dimensional scanner to build the mold data model.
4. The method for manufacturing the air-permeable mold with the conformal cooling water channel according to claim 1, wherein the method comprises the following steps: in step S2, the conformal waterway data model and the mold main body data model are both three-dimensional data models.
5. The method for manufacturing the air-permeable mold with the conformal cooling water channel according to claim 1, wherein the method comprises the following steps: the step S4 includes:
s41: converting the format of the assembly data model into an STL format;
s42: and importing the assembly data model converted into the STL format into the 3D printing equipment.
6. The method for manufacturing an air-permeable mold with a conformal cooling water channel according to any one of claims 1 to 5, wherein: and the 3D printing equipment prints the breathable mold layer by layer through the latticed scanning melting channel.
7. The method for manufacturing the air-permeable mold with the conformal cooling water channel according to claim 6, wherein the method comprises the following steps: the latticed scanning melting channel comprises a plurality of transverse scanning melting channels arranged at intervals and a plurality of longitudinal scanning melting channels arranged at intervals, each transverse scanning melting channel and each longitudinal scanning melting channel are arranged in a staggered mode, and a plurality of pores are formed by surrounding each transverse scanning melting channel and each longitudinal scanning melting channel.
8. The method for manufacturing an air-permeable mold with a conformal cooling water channel according to any one of claims 1 to 5, wherein: the printing parameters of the air-permeable part and the printing parameters of the compact part comprise a scanning interval parameter, a laser power parameter, a scanning speed parameter and a powder layer thickness parameter;
the scanning interval parameter of the printing parameter of the breathable piece is 0.15mm, and the scanning interval parameter of the printing parameter of the compact piece is 0.11 mm;
the scanning rate parameter of the printing parameter of the air-permeable piece is 1150mm/s, and the scanning rate parameter of the printing parameter of the compact piece is 1010 mm/s;
the laser power parameter of the printing parameter of the air-permeable part is 280W, and the laser power parameter of the printing parameter of the dense part is 305W.
9. The method for manufacturing an air-permeable mold with a conformal cooling water channel according to any one of claims 1 to 5, wherein: the printing parameters of the air-permeable part and the printing parameters of the compact part also comprise powder layer thickness parameters, and the powder layer thickness parameters of the printing parameters of the air-permeable part and the powder layer thickness parameters of the printing parameters of the compact part are both 0.05 mm.
10. The utility model provides a ventilative mould with follow shape cooling water route which characterized in that: the method for manufacturing an air-permeable mold having a conformal cooling water channel according to any one of claims 1 to 9.
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