CN111168999B - Slicing processing method, additive manufacturing control method and device, and additive manufacturing system - Google Patents

Slicing processing method, additive manufacturing control method and device, and additive manufacturing system Download PDF

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Publication number
CN111168999B
CN111168999B CN201911412878.5A CN201911412878A CN111168999B CN 111168999 B CN111168999 B CN 111168999B CN 201911412878 A CN201911412878 A CN 201911412878A CN 111168999 B CN111168999 B CN 111168999B
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additive manufacturing
layer
printing
print
copy
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CN111168999A (en
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董建新
刘斌
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Beijing Xinjinghe Additive Manufacturing Technology Co ltd
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Xinjinghe Laser Technology Development Beijing Co ltd
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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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/141—Processes of additive manufacturing using only solid materials
    • B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • 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
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
    • 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
    • B33Y50/00—Data acquisition or data processing for 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
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes

Abstract

The invention discloses a slicing processing method, an additive manufacturing control method, additive manufacturing control equipment and an additive manufacturing system, relates to the technical field of additive manufacturing, and aims to reduce the probability of cracking of an additive manufactured and formed component in a printing lap joint area and improve the quality of the component. The slice processing method is applied to terminal equipment and specifically comprises the following steps: the terminal equipment receives the three-dimensional data of the component; the terminal equipment processes the three-dimensional data of the component to obtain a plurality of layers of slices; the terminal equipment partitions the multilayer slices to obtain partition information of the multilayer slices; the partition information of each layer slice comprises at least two partition outlines; the partition information of two adjacent layers of slices contains at least one partition outline which is different. The invention provides a slicing processing method, an additive manufacturing control method and equipment, and an additive manufacturing system for additive manufacturing.

Description

Slicing processing method, additive manufacturing control method and device, and additive manufacturing system
Technical Field
The invention relates to the technical field of additive manufacturing, in particular to a slicing processing method, an additive manufacturing control method and device and an additive manufacturing system.
Background
Additive Manufacturing technology (AM) is a method of Manufacturing a component by an Additive Manufacturing apparatus driven by an Additive Manufacturing strategy of the component based on the principle of discrete-stacking.
At present, when a component is manufactured by adopting an additive manufacturing technology, the component is printed and formed layer by using raw materials of the component. Each printing layer is divided into at least two printing areas for printing, and at least one printing lap area is formed by the at least two printing areas in the additive manufacturing process. The printed lap zone makes the member formed by additive manufacturing prone to cracking in the printed lap zone, thereby seriously affecting the quality of the member.
Disclosure of Invention
The invention aims to provide a slicing processing method, an additive manufacturing control method, additive manufacturing control equipment and an additive manufacturing system, which are used for reducing the probability of cracking of an additive manufactured and formed component in a printing lap joint area and improving the quality of the component.
In order to achieve the above object, the present invention provides a slice processing method, which is applied to a terminal device.
The slice processing method comprises the following steps:
the terminal equipment receives component three-dimensional data;
the terminal equipment processes the three-dimensional data of the component to obtain a plurality of layers of slices;
the terminal equipment partitions the multilayer slices to obtain partition information of the multilayer slices; the partition information of each layer of the slice comprises at least two partition profiles; the partition information of two adjacent layers of the slices contains at least one contour of the partition which is different.
Compared with the prior art, in the slice processing method provided by the invention, at least one partition outline contained in partition information of two adjacent layers of slices is different, and the partition outline of the slice defines a printing area outline of a printing layer, so that at least one printing area outline of two adjacent layers of printing layers is different. At the moment, at least one printing overlapping area of two adjacent printing layers is not overlapped, so that the possibility that the member formed by additive manufacturing is obviously sunken or raised is low, and therefore, the slicing processing method provided by the invention can greatly reduce the risk of cracking of the member formed by additive manufacturing, and further improve the quality of the member.
The invention also provides an additive manufacturing control method which is applied to an additive manufacturing system with the terminal equipment and the additive manufacturing equipment. The additive manufacturing control method includes:
the terminal equipment generates an additive manufacturing strategy according to partition information of the multilayer slices; the partition information of each layer of the slice comprises at least two partition profiles; the partition information of two adjacent layers of the slices contains at least one partition outline which is different;
the terminal device sends an additive manufacturing strategy to an additive manufacturing device; the additive manufacturing strategy is for controlling additive manufacturing to form a multi-layer printed layer of a component; the printing layer corresponding to each layer of the slice is provided with at least two printing areas; the printing layers corresponding to the adjacent two layers of the slices have different outlines of at least one printing area.
Compared with the prior art, the beneficial effects of the additive manufacturing control method provided by the invention are the same as those of the slicing processing method in the technical scheme, and are not described herein again.
The invention also provides an additive manufacturing control method which is applied to an additive manufacturing system with the terminal equipment and the additive manufacturing equipment. The additive manufacturing control method includes:
the additive manufacturing equipment receives the additive manufacturing strategy sent by the terminal equipment;
the additive manufacturing equipment controls the printing mode of the multiple printing layers of the forming component according to the additive manufacturing strategy, so that each printing layer of the forming component is provided with at least two printing areas, and the outline of at least one printing area of two adjacent printing layers is different.
Compared with the prior art, the beneficial effects of the additive manufacturing control method provided by the invention are the same as those of the slice processing method in the technical scheme, and are not repeated herein.
The invention also provides the terminal equipment. The terminal device includes:
the communication module is used for receiving the three-dimensional data of the component;
the processing module is used for processing the three-dimensional data of the component to obtain a plurality of layers of slices; partitioning the multilayer slices to obtain partition information of the multilayer slices; the partition information of each layer of the slice comprises at least two partition profiles; the partition information of two adjacent layers of the slices contains at least one contour of the partition which is different.
Compared with the prior art, the beneficial effects of the terminal device provided by the invention are the same as the beneficial effects of the slice processing method in the technical scheme, and are not repeated herein.
The invention further provides the terminal equipment which is applied to the additive manufacturing system with the additive manufacturing equipment.
The terminal device includes:
the processing module is used for generating an additive manufacturing strategy according to the partition information of the multilayer slice; the partition information of each layer of the slice comprises at least two partition profiles; the partition information of two adjacent layers of the slices contains at least one partition outline which is different;
a communication module to send an additive manufacturing strategy to an additive manufacturing device; the additive manufacturing strategy is for controlling additive manufacturing to form a multi-layer printed layer of a component; the printing layer corresponding to each layer of the slice is provided with at least two printing areas; the printing layers corresponding to the adjacent two layers of the slices have different outlines of at least one printing area.
Compared with the prior art, the beneficial effects of the terminal device provided by the invention are the same as the beneficial effects of the slice processing method in the technical scheme, and are not repeated herein.
The invention also provides additive manufacturing equipment which is applied to an additive manufacturing system with the additive manufacturing equipment. The additive manufacturing apparatus comprises:
the communication unit is used for receiving the additive manufacturing strategy sent by the terminal equipment;
and the processing unit is used for controlling the printing mode of the multiple printing layers of the forming component according to the additive manufacturing strategy, so that each printing layer of the forming component has at least two printing areas, and the outline of at least one printing area of two adjacent printing layers is different.
Compared with the prior art, the beneficial effects of the additive manufacturing equipment provided by the invention are the same as those of the slice processing method in the technical scheme, and are not described herein again.
The invention also provides an additive manufacturing system, which comprises the terminal device and the additive manufacturing device, wherein the terminal device is in communication connection with the additive manufacturing device.
Compared with the prior art, the beneficial effects of the additive manufacturing system provided by the invention are the same as those of the slice processing method in the technical scheme, and are not repeated herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a system diagram of a laser deposition manufacturing system provided by an embodiment of the present invention;
fig. 2 is a schematic view of an additive manufacturing apparatus according to an embodiment of the present invention;
fig. 3 is a flowchart of a slicing processing method according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a twentieth slice provided by an embodiment of the present invention;
fig. 5 is a schematic diagram of a nineteenth layer of dicing provided by an embodiment of the invention;
FIG. 6 is a schematic diagram of a stacked rear side view of a slice processing method according to an embodiment of the present invention;
fig. 7 is a flowchart of an additive manufacturing control method according to an embodiment of the present invention.
Reference numerals:
10-terminal equipment, 11-communication module, 12-processing module, 20-additive manufacturing equipment, 201-laser, 2011-laser generator, 2012-laser processing head, 2013-optical fiber, 202-powder feeder, 2021-powder feeding tank, 203-working chamber, 204-working table, 205-base material, 21-communication unit, 22-processing unit, 30-slicing, 31-partition profile and 32-partition line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a slicing processing method, an additive manufacturing control method and equipment, and an additive manufacturing system, which are suitable for the additive manufacturing system. The following description will be made by taking a laser deposition manufacturing technique as an example.
Referring to fig. 1, a laser deposition manufacturing system is shown. The laser deposition manufacturing system comprises a terminal device 10 and an additive manufacturing device 20, wherein the terminal device 10 is in communication connection with the additive manufacturing device 20.
The terminal device 10 may be a desktop computer, a notebook computer, a tablet computer, or the like. The terminal device 10 is used for generating an additive manufacturing strategy. For example: constructing a three-dimensional model by three-dimensional software such as CATIA, CAD, Soidworks, UG and the like or a three-dimensional scanner, and storing and converting the three-dimensional model into an STL format file; and then correcting and repairing the STL format file by using software such as Magic, Cura or Slic3r and the like, and slicing and partitioning the STL format file according to a certain thickness to generate CLI format slice data. The CLI-format slice data may express data corresponding to a plurality of slices 30; then, the CLI-format slice data is imported into the filling software, and the laser scanning path data of each partition of each layer of the slice 30 is added to the CLI-format slice data. In other words, the laser scanning path of each partition of each slice 30 is filled with filling software. After the path planning is completed, CLI format slice data containing laser scanning path information or a numerical control program which can be read by additive manufacturing equipment can be output, and the formulation of an additive manufacturing strategy is completed. The terminal device 10 sends the additive manufacturing strategy to the additive manufacturing device 20.
Taking the laser deposition manufacturing technique as an example, as shown in fig. 2, the additive manufacturing apparatus 20 includes a laser 201, a powder feeder 202, a working chamber 203, and a worktable 204 accommodated in the working chamber 203. When a member is manufactured by laser deposition in the working chamber 203, the working chamber 203 is filled with an inert gas, a base material 205 required for manufacturing the member is mounted on the table 204, and the member is formed by deposition on the upper surface of the base material 205. It should be understood that the laser 201 and the powder feeder 202 have driving chips built therein.
The laser 201 described above has, by way of example, a laser generator 2011, a laser processing head 2012 and an optical fiber 2013 for connecting the laser generator 2011 and the laser processing head 2012. Powder feeder 202 includes a powder feed tank 2021 and a powder nozzle. The powder feeding tank 2021 is communicated with a powder nozzle through a conveying pipeline, and the powder nozzle is coaxially arranged on the laser processing head 2012.
The laser generated by the laser generator 2011 is transmitted to the laser processing head 2012 through the optical fiber 2013, and the laser processing head 2012 emits a laser beam that forms a molten pool on the upper surface of the substrate 205. The material required for the production of the components contained in the powder feed tank 2021 is fed to the powder nozzle via a feed line and is ejected into the molten bath via the powder nozzle. The material required to make the component melts in the melt pool formed by the laser beam and rapidly solidifies to form the printed layer.
During printing, the outline of each slice 30 defines the outline of each print layer, and each section outline 31 of a slice 30 defines the outline of each print region of a print layer. After printing of each printed layer is completed, the laser ranging apparatus of the additive manufacturing apparatus 20 detects the layer lifting height of the current printed layer, and transmits layer lifting height information to the terminal apparatus 10. When the terminal device 10 confirms that the layer lifting height is equal to the preset height, the printing work of the next printing layer is continued. When the terminal device 10 confirms that the layer lifting height is smaller than the preset height, the additive manufacturing strategy of the current printing layer is sent to the additive manufacturing device 20 again until the layer lifting height is equal to the preset height, and then the printing work of the next printing layer is carried out, so that the formed component is printed layer by layer.
At least two printing profiles of the same printing layer form at least one printing lap zone during the printing forming of the component. The printing lap area often has a concave or convex defect, resulting in poor flatness of the current printed layer.
The printing layers are deposited layer by layer, so that the printing lap areas of the printing layers are easy to stack in space. In this case, the depressions or protrusions existing in each printed layer are accumulated, and the possibility of cracking of the member is high, which seriously affects the quality of the member and reduces the success rate of manufacturing the member.
In order to solve the problem of component cracking caused by stacking of printing overlapping areas of printing layers, the embodiment of the invention provides a slicing processing method. The slicing processing method may be executed by a terminal device or a chip applied to the terminal device. Fig. 3 illustrates a slicing method provided by the present invention, which is applied to the terminal device 10. The slice processing method comprises the following steps:
s110, the terminal device 10 receives the component three-dimensional data. For example: the three-dimensional data loaded by the user or an external device such as a three-dimensional scanner can be received by the desktop computer. These three-dimensional data may be three-dimensional model data that has already been modeled, or may be three-dimensional raw data that has not yet been modeled.
S120, the terminal device 10 processes the three-dimensional data of the member to obtain a multilayer slice 30. The following are exemplary: slicing software such as Magic, Cura or Slic3r may be installed in a desktop computer, but is not limited to these slicing software. And slicing the three-dimensional data by using one of the slicing software, wherein the slicing thickness can be set according to actual conditions. For example, the slice thickness may be 1mm to 4 mm. Preferably, the slice thickness may be 2 mm.
S130, the terminal device 10 partitions the multilayer slice 30, and obtains partition information of the multilayer slice 30. The partition information of each layer of slices 30 includes at least two partition profiles 31; the partition information of two adjacent layers of slices 30 has at least one partition contour 31 that is different. It should be understood that the partition outlines are essentially the partition information data, defining the shape, size and location of the partition outlines. The different outlines here mean that the outlines of the sections are different in any one of shape, size, and position.
That is, the difference in outline here does not necessarily mean that the outline is different in shape, and may be different in position when the outline shape and size are the same, or different in outline size when the outline shape and position are the same.
In practical applications, when the partition information of each layer of the slices 30 includes at least two partition outlines 31, at least one dividing line 32 is formed by the at least two partition outlines 31. The partition information of two adjacent slices 30 has at least one partition outline 31 different, that is, the partition information of two adjacent slices 30 has at least one dividing line 32 different.
For example: at least one dividing line 32 of two adjacent cut sheet layers 30 is different in position, shape or size.
Based on the slicing method, in the slicing processing method provided by the embodiment of the present invention, at least one of the partitioning outlines 31 included in the partitioning information of the two adjacent slices 30 is different, and the partitioning outline 31 of the slice 30 defines a printing area outline of the printing layer, so that at least one of the printing area outlines of the two adjacent printing layers is different. At this time, at least one printing overlapping area of two adjacent printing layers is not overlapped, so that the possibility that the member formed by additive manufacturing is obviously sunken or raised is low. Therefore, the slicing processing method provided by the embodiment of the invention can greatly reduce the risk of cracking of the component formed by additive manufacturing, thereby improving the quality of the component.
In some embodiments, to further reduce the risk of cracking of the additively manufactured shaped component, at least one division line 32 formed by at least two section profiles 31 of any one layer of cut sheets 30 is in the middle of any section profile 31 of an adjacent cut sheet 30 in the height direction of the component. This dividing line 32 corresponds to the print lap formed by the two print areas during the component additive manufacturing process, and therefore when the dividing line 32 is located in the middle of any one zone of an adjacent cut sheet 30, the print lap is located in the middle of any one print area of an adjacent print layer. Specifically, as shown in fig. 4-6, fig. 4 shows the twentieth slice, fig. 5 shows the nineteenth slice, and fig. 6 is a side view of the first to twenty slices after stacking.
As can be seen from fig. 4 to 6, the dividing line 32 of the twentieth layer cut sheet is located in the middle of the partitioning contour 31 of the nineteenth layer cut sheet in the height direction of the member, and the dividing lines 32 of the remaining individual cut sheets 30 are arranged similarly to the dividing line 32 of the twentieth layer cut sheet, so that the dividing lines 32 of the individual cut sheets 30 are relatively dispersed, and accordingly, the print lap areas corresponding to the dividing lines 32 are relatively dispersed. At the moment, the dislocation degree of the printing overlapping areas of the two adjacent printing layers is large, the dispersity of the printing overlapping areas can be improved, the surface flatness of the printing layers is improved, and therefore the quality of the component is improved.
In some embodiments, in order to easily implement that the partition outlines 31 of two adjacent slices 30 are different, the terminal device 10 partition processing means partitions the multilayer slice 30, and obtaining the partition information of the multilayer slice 30 includes:
the terminal device 10 partitions each layer of slices 30 in different partitioning manners. The partition modes may be a grid partition, a ring partition, a free partition, or the like, but are not limited thereto. Compared with the method of partitioning the slices 30 of each layer by adopting the same partitioning mode, the method of partitioning the slices 30 of each layer by adopting different partitioning modes can ensure that at least one partitioning contour 31 of two adjacent layers of slices is different. For example, by alternately using the grid partitioning method and the circular partitioning method to partition each layer of slices 30, it is possible to realize that at least one partitioning contour 31 contained in the partitioning information of two adjacent layers of slices 30 is different without further operation.
Of course, even if the slices 30 of each layer are partitioned in different partitioning manners, there is a possibility that the partitioning profiles 31 are the same in the slices 30 of two adjacent layers. At this time, the terminal device 10 may perform adjustment (adjustment may be rotation, offset, or the like) on all the partition profiles 31 included in any one of the two adjacent layers of slices to further reduce the possibility that the partition profiles 31 are identical.
In some embodiments, when the terminal device 10 determines that the layer lift height of the current printed layer is less than the preset value, the previous printed layer includes an original printed layer and at least one copy printed layer. At this time, if the current printing layer only has one set of additive manufacturing strategy corresponding to the partition information, the printing area profiles of the original printing layer and at least one copy printing layer included in the current printing layer are the same, thereby causing a problem of stacking of the printing lap joint areas. To address this issue, at least one layer of slices 30 includes an original slice and a slice copy; the partition information of the same layer slice 30 includes partition information of the original slice and partition information of the slice copy.
The partitioning information of the original slice of the same layer slice 30 contains at least one partitioning contour 31 different from at least one partitioning contour 31 of the partitioning information of the slice copy.
From the above, the slice copy and the partition information of the slice copy are used as a standby scheme when the layer lifting height of the current printing layer is smaller than the preset value. The two printing layers are used alternately, so that the condition that the printing area outlines between the original printing layer defined by the original slice of one printing layer and at least one copy printing layer defined by the slice copy are the same in the printing process of the component can be avoided to a great extent, the probability of stacking the printing lap joint areas is reduced, the manufactured component is prevented from cracking, and the component quality is improved.
Embodiments of the present invention also provide an additive manufacturing control method, which may be executed by terminal device 10 or a chip applied to terminal device 10, or may be executed by additive manufacturing device 20 or a chip applied to additive manufacturing device 20. For convenience of describing the additive manufacturing control method provided by the embodiment of the present invention, the additive manufacturing control method provided by the embodiment of the present invention is described below with the terminal device 10 and the additive manufacturing device 20 as execution subjects, respectively.
The additive manufacturing control method provided by the embodiment of the invention is applied to an additive manufacturing system with a terminal device 10 and an additive manufacturing device 20. As shown in fig. 7, the additive manufacturing control method includes:
s210, the terminal device 10 generates an additive manufacturing strategy according to the partition information of the multilayer slice 30. The partition information of each layer of slices 30 includes at least two partition profiles 31; the partition information of two adjacent layers of slices 30 has at least one partition contour 31 that is different.
S220, the terminal device 10 sends the additive manufacturing strategy to the additive manufacturing device 20. An additive manufacturing strategy is used to control the additive manufacturing of the multiple printed layers of the component. Each layer of cut sheet 30 has at least two print areas corresponding to the print layer; the printed layers of adjacent two layers of slices 30 have at least one printed area with a different contour.
S230, the additive manufacturing device 20 receives the additive manufacturing strategy transmitted by the terminal device 10.
S240, the additive manufacturing apparatus 20 controls a printing manner of the multiple printing layers of the forming member according to the additive manufacturing strategy, so that each printing layer of the forming member has at least two printing areas, and an outline of at least one printing area of two adjacent printing layers is different.
Compared with the prior art, the beneficial effects of the additive manufacturing control method provided by the embodiment of the invention are the same as the beneficial effects of the slicing processing method in the technical scheme, and are not described herein again.
In an alternative, each layer of cut sheet 30 has at least two print zones corresponding to the print layer forming at least one print lap zone. The printed layers corresponding to two adjacent slices 30 have at least one printed overlap region that is offset.
In an alternative, at least one layer of slices 30 includes an original slice and a slice copy, and the partition information of the same layer of slices 30 includes original partition information and copy partition information.
The terminal device 10 generating the additive manufacturing strategy from the partition information of the multilayer slice 30 includes:
the terminal device 10 generates an original additive manufacturing strategy from original partition information included in the partition information of the multilayer slice 30. The terminal device 10 generates at least one copy additive manufacturing strategy from copy partition information comprised by the partition information of the at least one layer of slices 30. At this point, the original additive manufacturing strategy and the copy additive manufacturing strategy constitute the additive manufacturing strategies described above.
The terminal device 10 sending the additive manufacturing strategy to the additive manufacturing device 20 includes: terminal device 10 sends the original additive manufacturing strategy to additive manufacturing device 20; the additive manufacturing strategy is used to control the additive manufacturing of the multiple pristine printed layers of the component.
Accordingly, the receiving, by the additive manufacturing apparatus 20, the additive manufacturing policy transmitted by the terminal apparatus 10 includes: additive manufacturing device 20 receives the original additive manufacturing strategy sent by terminal device 10.
The additive manufacturing apparatus 20 controlling a printing manner of a plurality of printed layers forming a member according to an additive manufacturing strategy includes: additive manufacturing apparatus 20 controls the manner in which the multiple printed layers of the component are printed according to the original additive manufacturing strategy.
When the additive manufacturing apparatus controls a printing manner of the multi-layer printed layers forming the member according to the additive manufacturing strategy, the additive manufacturing control method further includes:
the additive manufacturing apparatus 20 transmits the current printing layer elevation information to the terminal apparatus 10. Accordingly, the terminal device 10 receives the current printed layer elevation information transmitted by the additive manufacturing device 20. And under the condition that the terminal device 10 determines that the lifting height of the current printing layer is smaller than the preset height, sending a copy additive manufacturing strategy corresponding to the current printing layer to the additive manufacturing device 20. The copy additive manufacturing strategy corresponding to the current print layer is used to control the additive manufacturing device 20 to form a copy print layer on the surface of the current original print layer.
Accordingly, the additive manufacturing device 20 receives the copy additive manufacturing strategy transmitted by the terminal device 10. Additive manufacturing device 20 controls the printing of the copy print layer of the current original print layer surface according to a copy additive manufacturing strategy.
The same printing layer includes at least one printing area of the original printing layer and at least one printing area of the copy printing layer having different outlines.
In an alternative, the current printed layer comprises at least two printed areas of the original printed layer forming at least one original printed lap zone; the current print layer includes a copy print layer having at least two print regions forming at least one copy print lap zone.
The current print layer includes at least one original print lap region of the original print layer that is offset from at least one copy print lap region of the copy print layer.
An embodiment of the present invention further provides a terminal device 10, as shown in fig. 1, including:
and the communication module 11 is used for receiving the three-dimensional data of the member.
And the processing module 12 is used for processing the three-dimensional data of the component to obtain the multilayer slice 30. The multi-layer slice 30 is partitioned, and partition information of the multi-layer slice 30 is obtained. The partition information of each layer of slices 30 includes at least two partition profiles 31; the partition information of two adjacent layers of slices 30 has at least one partition contour 31 that is different.
Compared with the prior art, the beneficial effects of the terminal device 10 provided by the embodiment of the present invention are the same as those of the slice processing method in the foregoing technical solution, and are not described herein again.
In an alternative, the processing module 12 is specifically configured to partition each layer slice 30 in a different partition manner.
In an alternative, at least one layer of slices 30 includes an original slice and a slice copy. The partition information of the same layer slice includes partition information of the original slice and partition information of the slice copy.
The partition information of the original slice of the same layer slice 30 contains at least one partition outline 31 different from the at least one partition outline 31 of the partition information of the slice copy.
The invention also provides a terminal device 10 for application in an additive manufacturing system having an additive manufacturing device 20. As shown in fig. 1, the terminal device 10 includes:
a processing module 12 for generating an additive manufacturing strategy from the partitioning information of the multi-layer slice 30. The partition information of each layer of slices 30 includes at least two partition profiles 31; the partition information of two adjacent layers of slices 30 has at least one partition contour 31 that is different.
A communication module 11 to send an additive manufacturing strategy to an additive manufacturing apparatus 20. Additive manufacturing strategies are used to control the additive manufacturing of the multiple printed layers forming the component. Each layer of cut sheet 30 has at least two print areas corresponding to the print layer; the printed layers of adjacent two layers of slices 30 have at least one printed area with a different contour.
Compared with the prior art, the beneficial effects of the terminal device 10 provided by the embodiment of the present invention are the same as those of the slice processing method in the foregoing technical solution, and are not described herein again.
In an alternative, each layer of cut sheet 30 has at least two printed areas corresponding to the printed layer forming at least one printed lap zone; the printed layers corresponding to two adjacent slices 30 have at least one printed overlap region that is offset.
In an alternative, at least one layer of slices 30 includes an original slice and a slice copy, and the partition information of the same layer of slices includes original partition information and copy partition information.
The processing module 12 is specifically configured to generate an original additive manufacturing strategy from original partition information comprised by the partition information of the multi-layer slice 30. At least one copy additive manufacturing strategy is generated based on copy partition information included with the partition information of the at least one layer of slices 30.
The communication module 11 is configured to send the original additive manufacturing strategy to the additive manufacturing device 20. The additive manufacturing strategy is used to control the additive manufacturing of the multiple pristine printed layers of the component.
The communication module 11 is further configured to receive current printing layer lifting height information sent by the additive manufacturing apparatus 20.
The processing module 12 is further configured to, in a case that it is determined that the current printing layer lifting height is smaller than the preset height, send a copy additive manufacturing policy corresponding to the current printing layer to the additive manufacturing apparatus 20 by the communication module 11. The copy additive manufacturing strategy corresponding to the current print layer is used to control the additive manufacturing device 20 to form a copy print layer on the surface of the current original print layer. The same printing layer includes at least one printing area of the original printing layer and at least one printing area of the copy printing layer having different outlines.
In an alternative, the current printed layer comprises at least two printed areas of the original printed layer forming at least one original printed lap zone; the current print layer includes a copy print layer having at least two print regions forming at least one copy print lap zone.
The current print layer includes at least one original print lap region of the original print layer that is offset from at least one copy print lap region of the copy print layer.
Embodiments of the present invention also provide an additive manufacturing apparatus 20, which is applied to an additive manufacturing system having the additive manufacturing apparatus 20. As shown in fig. 1, the additive manufacturing apparatus 20 includes:
a communication unit 21, configured to receive the additive manufacturing strategy transmitted by the terminal device 10.
A processing unit 22 for controlling a printing pattern of the multi-layer printed layers of the forming member according to an additive manufacturing strategy. So that each printed layer forming the member has at least two printed areas, the adjacent two printed layers having at least one printed area with a different profile.
Compared with the prior art, the beneficial effects of the additive manufacturing device 20 provided by the embodiment of the invention are the same as the beneficial effects of the slicing processing method in the technical scheme, and are not described herein again.
In an alternative form, each printed layer has at least one printed lap zone formed by at least two printed areas; the adjacent two print layers have at least one print lap zone that is offset.
In one alternative, the additive manufacturing strategy comprises an original additive manufacturing strategy and a copy additive manufacturing strategy.
The communication unit 21 is specifically configured to receive the original additive manufacturing strategy transmitted by the terminal device 10.
The processing unit 22 is specifically configured to control the manner in which the multi-layer printed layers of the forming member are printed in accordance with an original additive manufacturing strategy.
The communication unit 21 is also configured to transmit the current print-level elevation information to the terminal device 10.
The communication unit 21 is further configured to receive the copy additive manufacturing policy sent by the terminal device 10 in a case where the current print layer lifting height is smaller than the preset height.
The processing unit 22 is further configured to control a printing mode of a copy print layer of the current original print layer surface according to a copy additive manufacturing strategy.
The same printing layer includes at least one printing area of the original printing layer and at least one printing area of the copy printing layer having different outlines.
In an alternative, the current printed layer comprises at least two printed areas of the original printed layer forming at least one original printed lap zone; the current print layer includes a copy print layer having at least two print regions forming at least one copy print lap zone.
The current print layer includes at least one copy print lap region of the original print layer that is offset from at least one copy print lap region of the copy print layer.
Referring to fig. 1, an additive manufacturing system according to an embodiment of the present invention further includes any one of the terminal device 10 and the additive manufacturing device 20, where the terminal device 10 is communicatively connected to the additive manufacturing device 20.
Compared with the prior art, the additive manufacturing system provided by the embodiment of the invention has the same beneficial effects as the slicing processing method in the technical scheme, and the detailed description is omitted here.
The embodiment of the invention also provides a computer storage medium, wherein the computer storage medium stores instructions, and when the instructions are executed, the additive manufacturing control method is used for controlling the additive manufacturing.
The embodiment of the application provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is configured to run a computer program or instructions to implement the additive manufacturing control method described in the embodiments of the present invention.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (11)

1. A slice processing method is applied to a terminal device, and comprises the following steps:
the terminal equipment receives component three-dimensional data;
the terminal equipment processes the three-dimensional data of the component to obtain a plurality of layers of slices;
the terminal equipment partitions the multilayer slices to obtain partition information of the multilayer slices; the partition information of each layer of the slice comprises at least two partition profiles; the partition information of two adjacent layers of the slices contains at least one partition outline which is different;
the terminal device partitions the multilayer slice, and obtaining partition information of the multilayer slice includes:
the terminal equipment partitions each layer of the slices in different partition modes;
at least one dividing line formed by at least two partition outlines of any layer of the section is positioned in the middle of any partition outline of the adjacent section in the height direction of the component;
at least one layer of the slices comprises an original slice and a slice copy; the partition information of the slice in the same layer comprises the partition information of the original slice and the partition information of the slice copy;
partition information of the original slice of the same layer of the slice contains at least one partition outline different from at least one partition outline of partition information of the slice copy;
defining an original print layer of print layers from said original slice, defining at least one copy print layer of said print layers from said slice copy;
the terminal equipment is also used for receiving the lifting height information of the current printing layer;
the terminal equipment is used for controlling the printing mode of the copied printing layer on the surface of the original printing layer under the condition that the terminal equipment determines that the lifting height of the current printing layer is smaller than the preset height according to the lifting height information of the current printing layer;
the at least one print area of the original print layer and the at least one print area of the copy print layer included in the same print layer have different outlines.
2. An additive manufacturing control method applied to an additive manufacturing system having a terminal device and an additive manufacturing device, the additive manufacturing control method comprising:
the terminal equipment generates an additive manufacturing strategy according to partition information of the multilayer slices; the partition information of each layer of the slice comprises at least two partition profiles; the partition information of two adjacent layers of the slices contains at least one partition outline which is different;
the terminal device sends an additive manufacturing strategy to an additive manufacturing device; the additive manufacturing strategy is for controlling additive manufacturing to form a multi-layer printed layer of a component; the printing layer corresponding to each layer of the slice is provided with at least two printing areas; the printing layers corresponding to the adjacent two layers of slices have different outlines of at least one printing area;
the printing layer corresponding to each layer of the slice has at least two printing areas forming at least one printing lap zone; at least one printing overlapping area of the printing layer corresponding to the two adjacent layers of the slices is staggered;
at least one layer of the slices comprises an original slice and a slice copy, and the partition information of the same layer of the slices comprises original partition information and copy partition information;
the terminal device generating the additive manufacturing strategy according to the partition information of the multilayer slice comprises the following steps:
the terminal equipment generates an original additive manufacturing strategy according to original partition information included in the partition information of the multilayer slice; the terminal equipment generates at least one copy additive manufacturing strategy according to copy partition information included in partition information of at least one layer of the slices;
the terminal device sending an additive manufacturing strategy to an additive manufacturing device comprises:
the terminal device sending an original additive manufacturing strategy to the additive manufacturing device; the raw additive manufacturing strategy is to control a plurality of raw print layers of an additive manufacturing forming member;
the terminal equipment receives current printing layer lifting height information sent by the additive manufacturing equipment; the terminal equipment sends a copying additive manufacturing strategy corresponding to the current printing layer to the additive manufacturing equipment under the condition that the lifting height of the current printing layer is determined to be smaller than a preset height; the copy additive manufacturing strategy corresponding to the current printing layer is used for controlling the additive manufacturing equipment to form a copy printing layer on the surface of the current original printing layer; the at least one print region of the original print layer and the at least one print region of the copy print layer included in the same print layer have different outlines.
3. The additive manufacturing control method according to claim 2,
the current printed layer comprises at least two of the printed areas of the original printed layer forming at least one original printed lap zone; the current print layer comprises at least two print areas of the copy print layer forming at least one copy print lap;
the current print layer includes at least one original print lap zone of an original print layer that is offset from at least one copy print lap zone of a copy print layer.
4. An additive manufacturing control method applied to an additive manufacturing system having a terminal device and an additive manufacturing device, the additive manufacturing control method comprising:
the additive manufacturing equipment receives the additive manufacturing strategy sent by the terminal equipment;
the additive manufacturing equipment controls the printing mode of the multiple printing layers of the forming component according to the additive manufacturing strategy, so that each printing layer of the forming component is provided with at least two printing areas, and the outline of at least one printing area of two adjacent printing layers is different;
each of the printed layers having at least one printed lap zone formed by at least two printed areas; at least one of the printing overlapping areas of two adjacent printing layers is staggered;
the additive manufacturing strategy comprises an original additive manufacturing strategy and a copied additive manufacturing strategy; the additive manufacturing strategy sent by the additive manufacturing equipment receiving terminal equipment comprises the following steps:
the additive manufacturing device receives the original additive manufacturing strategy sent by the terminal device;
the additive manufacturing apparatus controlling a printing manner of a plurality of printed layers forming a member according to the additive manufacturing strategy includes:
the additive manufacturing apparatus controls a printing manner of a plurality of printed layers forming a component according to the original additive manufacturing strategy;
when the additive manufacturing apparatus controls a printing manner of a multi-layer printing layer forming a member according to the additive manufacturing strategy, the additive manufacturing control method further includes:
the additive manufacturing equipment sends current printing layer lifting height information to the terminal equipment;
under the condition that the lifting height of the current printing layer is smaller than a preset height, the additive manufacturing equipment receives the copy additive manufacturing strategy sent by the terminal equipment;
the additive manufacturing equipment controls the printing mode of a copy printing layer on the surface of the current original printing layer according to the copy additive manufacturing strategy;
the at least one print region of the original print layer and the at least one print region of the copy print layer included in the same print layer have different outlines.
5. The additive manufacturing control method according to claim 4,
the current printed layer comprises at least two of the printed areas of the original printed layer forming at least one original printed lap zone; said current print layer comprises at least two of said print areas of said copy print layer forming at least one copy print lap;
the current print layer includes at least one of the copy print lap zones of the original print layer that is offset from at least one of the copy print lap zones of the copy print layer.
6. A terminal device, comprising:
the communication module is used for receiving the three-dimensional data of the component;
the processing module is used for processing the three-dimensional data of the component to obtain a plurality of layers of slices; partitioning the multilayer slices to obtain partition information of the multilayer slices; the partition information of each layer of the slice comprises at least two partition profiles; the partition information of two adjacent layers of the slices contains at least one partition outline which is different;
the processing module is specifically configured to partition each layer of the slices in different partition manners; at least one dividing line formed by at least two partition outlines of any layer of the section is positioned in the middle of any partition outline of the adjacent section in the height direction of the component;
at least one layer of the slices comprises an original slice and a slice copy; the partition information of the slice in the same layer comprises the partition information of the original slice and the partition information of the slice copy;
partition information of the original slice of the same layer of the slice contains at least one partition outline different from at least one partition outline of partition information of the slice copy;
defining an original print layer of print layers from said original slice, defining at least one copy print layer of said print layers from said slice copy;
the communication module is also used for receiving the lifting height information of the current printing layer;
the processing module is further configured to control a printing mode of the copied printing layer on the surface of the original printing layer under the condition that the current printing layer lifting height is determined to be smaller than a preset height according to the current printing layer lifting height information;
the at least one printing area of the original printing layer and the at least one printing area of the copy printing layer included in the same printing layer have different outlines.
7. A terminal device for use in an additive manufacturing system having an additive manufacturing device, the terminal device comprising:
the processing module is used for generating an additive manufacturing strategy according to the partition information of the multilayer slice; the partition information of each layer of the slice comprises at least two partition profiles; the partition information of two adjacent layers of the slices contains at least one partition outline which is different;
a communication module to send an additive manufacturing strategy to an additive manufacturing device; the additive manufacturing strategy is to control additive manufacturing to form a multi-layer printed layer of a component; the printing layer corresponding to each layer of the slice is provided with at least two printing areas; the printing layers corresponding to the adjacent two layers of slices have different outlines of at least one printing area;
the printing layer corresponding to each layer of the slice has at least two printing areas forming at least one printing lap zone; at least one printing overlapping area of the printing layer corresponding to the two adjacent layers of the slices is staggered;
at least one layer of the slices comprises an original slice and a slice copy, and the partition information of the same layer of the slices comprises original partition information and copy partition information;
the processing module is specifically configured to generate an original additive manufacturing strategy according to original partition information included in the partition information of the multilayer slice; generating at least one copy additive manufacturing strategy according to copy partition information included in partition information of at least one layer of the slice;
the communication module is to send an original additive manufacturing strategy to the additive manufacturing device; the raw additive manufacturing strategy is to control a plurality of raw print layers of an additive manufacturing forming member;
the communication module is further used for receiving current printing layer lifting height information sent by the additive manufacturing equipment;
the processing module is further configured to send a copy additive manufacturing strategy corresponding to the current printing layer to the additive manufacturing device when it is determined that the lifting height of the current printing layer is smaller than a preset height; the copy additive manufacturing strategy corresponding to the current printing layer is used for controlling the additive manufacturing equipment to form a copy printing layer on the surface of the current original printing layer; the at least one print region of the original print layer and the at least one print region of the copy print layer included in the same print layer have different outlines.
8. The terminal device of claim 7, wherein the current printed layer includes at least two of the printed areas of the original printed layer forming at least one original printed lap zone; said current print layer comprises at least two of said print areas of said copy print layer forming at least one copy print lap;
the current print layer includes at least one original print lap zone of an original print layer that is offset from at least one copy print lap zone of a copy print layer.
9. An additive manufacturing apparatus for use in an additive manufacturing system having an additive manufacturing apparatus, the additive manufacturing apparatus comprising:
the communication unit is used for receiving the additive manufacturing strategy sent by the terminal equipment;
the processing unit is used for controlling the printing mode of the multiple printing layers of the forming component according to the additive manufacturing strategy, so that each printing layer of the forming component is provided with at least two printing areas, and the outline of at least one printing area of two adjacent printing layers is different;
each of the printed layers having at least one printed lap zone formed by at least two printed areas; at least one printing overlapping area of two adjacent printing layers is staggered;
the additive manufacturing strategy comprises an original additive manufacturing strategy and a copied additive manufacturing strategy;
the communication unit is specifically configured to receive the original additive manufacturing strategy sent by the terminal device;
the processing unit is specifically configured to control a printing manner of a multi-layer printing layer of a forming member according to the original additive manufacturing strategy;
the communication unit is also used for sending the current printing layer lifting height information to the terminal equipment;
the communication unit is further configured to receive the copy additive manufacturing strategy sent by the terminal device when the current printing layer lifting height is smaller than a preset height;
the processing unit is also used for controlling the printing mode of the copy printing layer on the surface of the current original printing layer according to the copy additive manufacturing strategy;
the at least one print region of the original print layer and the at least one print region of the copy print layer included in the same print layer have different outlines.
10. Additive manufacturing apparatus according to claim 9,
the current printed layer comprises at least two of the printed areas of the original printed layer forming at least one original printed lap zone; said current print layer comprises at least two of said print areas of said copy print layer forming at least one copy print lap;
the current print layer includes at least one of the copy print lap zones of the original print layer that is offset from at least one of the copy print lap zones of the copy print layer.
11. An additive manufacturing system comprising a terminal device according to any one of claims 7 to 8 and an additive manufacturing device according to any one of claims 9 to 10, the terminal device being communicatively connected to the additive manufacturing device.
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