CN114801159A - Photocuring forming equipment and forming method - Google Patents

Photocuring forming equipment and forming method Download PDF

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Publication number
CN114801159A
CN114801159A CN202110126417.2A CN202110126417A CN114801159A CN 114801159 A CN114801159 A CN 114801159A CN 202110126417 A CN202110126417 A CN 202110126417A CN 114801159 A CN114801159 A CN 114801159A
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CN
China
Prior art keywords
layer
temperature
real
substrate
photosensitive resin
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Pending
Application number
CN202110126417.2A
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Chinese (zh)
Inventor
任佳文
雷力明
薛珈琪
张佳
魏菁
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AECC Commercial Aircraft Engine Co Ltd
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AECC Commercial Aircraft Engine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by AECC Commercial Aircraft Engine Co Ltd filed Critical AECC Commercial Aircraft Engine Co Ltd
Priority to CN202110126417.2A priority Critical patent/CN114801159A/en
Publication of CN114801159A publication Critical patent/CN114801159A/en
Pending legal-status Critical Current

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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
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
    • B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
    • B29C64/135—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask the energy source being concentrated, e.g. scanning lasers or focused light sources
    • 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
    • B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Engineering (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

The invention discloses a photocuring forming device and a forming method. The photocuring forming equipment comprises a forming cylinder, a laser, a substrate, a temperature detection device and a controller, wherein the forming cylinder is used for storing liquid photosensitive resin raw materials, the laser is used for irradiating the liquid photosensitive resin raw materials by utilizing laser, the substrate moves in the forming cylinder layer by layer along the vertical direction so that the liquid photosensitive resin raw materials are cured layer by layer to form a formed part, the temperature detection device is used for detecting the temperature of a curing layer positioned at the uppermost side in real time and acquiring the real-time temperature, and the controller is in communication connection with the temperature detection device and controls the substrate to move downwards according to the real-time temperature. The photocuring forming equipment utilizes the temperature detection device to detect the temperature of the solidified layer positioned at the uppermost side in real time in the process of solidifying the liquid photosensitive resin raw material layer by layer, and controls the substrate to move according to the real-time temperature, so that subsequent printing work can be carried out after a certain solidified layer meets the cooling requirement to effectively control the deformation of a formed part.

Description

Photocuring forming equipment and forming method
Technical Field
The invention relates to the field of rapid forming manufacturing, in particular to a photocuring forming device and a forming method.
Background
The photocuring forming 3D printing technology focuses laser with specific wavelength and intensity on the surface of a photosensitive resin material, so that the photosensitive resin material is sequentially solidified from point to line and from line to surface, forming of a layer is completed, then the layer is solidified layer by layer, and the layer is stacked on a substrate, and finally a target three-dimensional entity is formed.
In the process of forming the large-size and large-wall-thickness pneumatic test piece by using the photocuring technology, laser continuously irradiates the surface of the photosensitive resin material. The energy input to the photosensitive resin material cures the material while also increasing the temperature of the material. When the temperature rising rate of the surface of the material is larger than the heat exchange rate of the surface of the material and the material below, the surface temperature is gradually increased, and the internal temperature gradient in the forming process of the test piece is also gradually increased. The stress generated by the excessive temperature gradient inside the test piece deforms the test piece, and the excessive deformation can even interfere with the movement of the coating device and cause the forming termination.
In the related art known by the inventor, the residence time between each layer can be prolonged by setting a fixed residence time through a program, and the internal temperature gradient in the test piece forming process is controlled, so that the aim of reducing the deformation of the test piece is fulfilled. However, the areas of the layers of the test piece are different, the heat exchange rate between the surface of the material and the material below the material is also influenced by various factors, and the setting of the fixed retention time may cause the heat dissipation time to be too short or too long. Too short a heat dissipation time may result in insufficient local cooling, causing deformation of the test piece. Too long heat dissipation time can lead to the test piece not to begin the forming work of the next layer in time after being fully cooled, and the production efficiency is reduced.
It is important to note here that the statements in this background section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Disclosure of Invention
The invention provides a light-curing forming device and a forming method, which are used for effectively controlling the deformation of a formed piece.
The present invention in its first aspect provides a photo-curing molding apparatus comprising:
a forming cylinder configured to store a liquid photosensitive resin raw material;
a laser configured to irradiate a liquid photosensitive resin raw material with laser light to cure the liquid photosensitive resin raw material;
the base plate is arranged in the forming cylinder and moves layer by layer along the vertical direction so as to enable the liquid photosensitive resin raw material to be solidified layer by layer to form a formed piece;
the temperature detection device is configured to detect the temperature of the solidified layer at the uppermost side in real time in the process of solidifying the liquid photosensitive resin raw material layer by layer and acquire the real-time temperature; and
and the controller is in communication connection with the temperature detection device and is configured to control the substrate to move downwards according to the real-time temperature.
In some embodiments, the temperature sensing device comprises a non-contact temperature sensing device disposed above the forming cylinder.
In some embodiments, the controller is configured to control the substrate movement according to the real-time temperature and the set temperature.
In some embodiments, the shaped article comprises a plurality of cured layers, the plurality of cured layers being cured one by one and located uppermost one by one, and the set temperature of each cured layer located uppermost being the same or different during the layer-by-layer curing.
In some embodiments, the light-curing forming device further comprises a substrate support connected with the substrate and a driving device in driving connection with the substrate support, the driving device is in communication with the controller, and the driving device drives the substrate support to move according to a control signal of the controller.
The second aspect of the present invention provides a photocuring forming method, including the following steps:
controlling a laser to irradiate the liquid photosensitive resin raw material layer by layer so as to solidify the liquid photosensitive resin raw material layer by layer to form a formed piece;
in the process of solidifying the liquid photosensitive resin raw material layer by layer, detecting the temperature of the solidified layer at the uppermost side in real time and acquiring the real-time temperature;
the substrate supporting the form is moved downward based on the real-time temperature control.
In some embodiments, controlling the downward movement of the substrate supporting the form based on the real-time temperature comprises: and when the real-time temperature is below the set temperature, controlling the substrate to move downwards.
In some embodiments, the molded article includes a plurality of cured layers, the plurality of cured layers are cured one by one and located on the uppermost side one by one, and the set temperature of each cured layer located on the uppermost side is the same or different during the layer-by-layer curing, and the photocuring forming method further includes determining the set temperature according to the area of the cured layer.
According to aspects provided by the present invention, a photocuring forming apparatus includes a forming cylinder configured to store a liquid photosensitive resin raw material, a laser configured to irradiate the liquid photosensitive resin raw material with laser light to cure the liquid photosensitive resin raw material, a substrate configured to move layer by layer in a vertical direction in the forming cylinder so that the liquid photosensitive resin raw material is cured layer by layer to form a formed piece, a temperature detection device configured to detect in real time a temperature of an uppermost cured layer during the layer by layer curing of the liquid photosensitive resin raw material and acquire a real-time temperature, and a controller communicatively connected to the temperature detection device and configured to control the substrate to move downward according to the real-time temperature. The photocuring forming equipment utilizes the temperature detection device to detect the temperature of the curing layer positioned at the uppermost side in real time and acquire the real-time temperature in the process of curing the liquid photosensitive resin raw material layer by layer so as to monitor the real-time temperature of each curing layer after curing is completed, and controls the substrate to move according to the real-time temperature, so that subsequent printing work can be carried out after a certain curing layer meets the cooling requirement so as to effectively control the deformation of a formed part.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
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 application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
fig. 1 is a schematic structural diagram of a light-curing molding apparatus according to an embodiment of the present invention.
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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. 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 relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously positioned and the spatially relative descriptors used herein interpreted accordingly.
Referring to fig. 1, a light-curing molding apparatus of an embodiment of the present invention includes:
a forming cylinder 2 configured to store a liquid photosensitive resin raw material 4;
a laser 6 configured to irradiate the liquid photosensitive resin raw material 4 with laser light to cure the liquid photosensitive resin raw material 4;
a substrate 1 which is disposed in a forming cylinder 2 and moves layer by layer in a vertical direction so that a liquid photosensitive resin raw material 4 is cured layer by layer to form a formed product;
a temperature detection device 7 configured to detect in real time the temperature of the cured layer located on the uppermost side in the course of curing the liquid photosensitive resin raw material 4 layer by layer and acquire the real-time temperature; and
and a controller 9 which is in communication connection with the temperature detection device 7 and is configured to control the substrate 1 to move downwards according to the real-time temperature.
In the process of solidifying the liquid photosensitive resin raw material 4 layer by layer, the photocuring forming equipment of the embodiment of the invention utilizes the temperature detection device 7 to detect the temperature of the solidified layer on the uppermost side in real time and obtain the real-time temperature so as to monitor the real-time temperature of each solidified layer after solidification is completed, and controls the movement of the substrate 1 according to the real-time temperature, namely controls the cooling time of each solidified layer, so that after a certain solidified layer meets the cooling requirement, subsequent printing work can be carried out to effectively control the deformation of a formed part.
In some embodiments, the temperature detection device 7 comprises a non-contact temperature detection device disposed above the forming cylinder 2. The non-contact temperature detection device is used for detecting the temperature of the upper surface of each solidified layer in real time.
Referring to fig. 1, a base plate 1 of an embodiment of the present invention is movable in a vertical direction within a forming cylinder 2. The multi-layer curing of the liquid photosensitive resin raw material 4 is required to be completed in the molding process of the molded article, that is, the molded article includes a plurality of cured layers. After the first cured layer is cured, the substrate 1 supported on the lower side of the first cured layer is moved downward by one layer thickness, and the laser of the laser 6 is irradiated to the liquid photosensitive resin raw material 4 to cure the second cured layer, thereby curing layer by layer to form a molded article.
After each solidified layer is solidified, the substrate 1 needs to be controlled to move downwards for solidification of the next solidified layer, and the residence time determines the heat dissipation time of the solidified layer, so as to influence whether the solidified layer is sufficiently cooled. In view of the above problem of the residence time, the photocuring molding apparatus according to the embodiment of the present invention is configured to detect the temperature of the uppermost cured layer in real time by providing the temperature detection device 7, so as to grasp the cooling degree of the uppermost cured layer in real time, and after the cured layer is sufficiently cooled, control the substrate 1 to move downward to perform the curing printing of the next layer.
In order to make an accurate determination as to whether the solidified layer has cooled sufficiently, in some embodiments, the controller 9 is configured to control the substrate 1 to move according to the real-time temperature and the set temperature. The set temperature is set by the user. When the real-time temperature of the solidified layer which is solidified reaches the set temperature, the controller 9 controls the substrate 1 to move downwards by one layer thickness, so that the inside of a formed part is fully cooled, and the phenomenon that the forming work of the next layer is not started in time after the formed part is fully cooled to influence the production efficiency is avoided.
In some embodiments, the shaped article 5 comprises a plurality of cured layers, which are cured one by one and located uppermost one by one, and the set temperature of each cured layer located uppermost is the same or different during layer-by-layer curing. That is, in the curing process, the set temperature after sufficient cooling is the same for each cured layer, or may be different for each cured layer, which is determined according to the curing area of each cured layer, and the like.
In some embodiments, referring to fig. 1, the light-curing forming apparatus further includes a substrate support 8 connected to the substrate 1, and a driving device in driving connection with the substrate support 8, the driving device being in communication with the controller 9, and the driving device driving the substrate support 8 to move according to a control signal of the controller 9.
One end of the substrate holder 8 is connected to the substrate 1 and positioned inside the forming cylinder 2, and the other end of the substrate holder 8 is positioned outside the forming cylinder 2. The substrate holder 8 moves in the vertical direction to drive the substrate 1 to move in the vertical direction.
The photocuring forming method comprises the following steps of:
controlling a laser 6 to irradiate the liquid photosensitive resin raw material 4 layer by layer so as to solidify the liquid photosensitive resin raw material 4 layer by layer to form a forming piece 5;
in the process of solidifying the liquid photosensitive resin raw material 4 layer by layer, detecting the temperature of the solidified layer at the uppermost side in real time and acquiring the real-time temperature;
the substrate 1 for supporting the molding 5 is moved downward according to the real-time temperature control.
The photocuring forming method of the invention detects the temperature of the curing layer at the uppermost side in real time and obtains the real-time temperature in the process of curing the liquid photosensitive resin raw material 4 layer by layer so as to monitor the real-time temperature of each curing layer after the curing is finished, and controls the substrate 1 to move according to the real-time temperature, namely controls the cooling time of each curing layer, thereby carrying out subsequent printing work after a certain curing layer meets the cooling requirement so as to effectively control the deformation of a formed part.
In some embodiments, controlling the downward movement of the substrate 1 for supporting the form according to the real-time temperature includes: when the real-time temperature is below the set temperature, the control substrate 1 moves downward. When the real-time temperature of the solidified layer which is solidified reaches the set temperature, the controller 9 controls the substrate 1 to move downwards by one layer thickness, so that the inside of the forming piece 5 is fully cooled, and the phenomenon that the forming work of the next layer is not started in time after the forming piece is fully cooled to influence the production efficiency is avoided.
In some embodiments, the molded article includes a plurality of cured layers, the plurality of cured layers are cured one by one and located on the uppermost side one by one, and the set temperature of each cured layer located on the uppermost side is the same or different during the layer-by-layer curing, and the photocuring forming method further includes determining the set temperature according to the area of the cured layer.
The structure and operation of the stereolithographic apparatus according to an embodiment of the present invention will be described in detail with reference to fig. 1.
The photocuring forming apparatus of this embodiment includes a substrate 1, a forming cylinder 2, a coating device 3, a laser 6, a temperature detection device 7, a substrate holder 8, and a controller 9.
The substrate 1 is fixed on the substrate support 8, the upper part of the substrate support 8 is in driving connection with a motor, and the substrate support 8 can drive the substrate 1 to move up and down. The forming cylinder 2 stores a liquid photosensitive resin raw material 4. Dense round holes are uniformly distributed on the substrate 1, the bottom of a forming part 5 in the forming process grows on the substrate 1, the controller 9 controls the laser 6 to irradiate the upper surface of the liquid photosensitive resin raw material 4 layer by layer according to the shape and the path set by a program, the upper surface raw material is irradiated and cured, the temperature detection device 7 detects the temperature of the upper surface of the forming part 5 and sends the real-time temperature to the controller 9, the controller 9 processes the temperature returned by the temperature detection device 7, when the real-time temperature is lower than the set temperature, the controller 9 sends a signal to control the substrate support 8 to move to drive the substrate 1 to sink by one layer thickness, the coating device 3 performs reciprocating motion on the upper surface of the liquid photosensitive resin raw material 4 along the horizontal direction, and after the coating action is completed, the system starts to print the next layer according to the program setting.
In the present embodiment, the shaped member 5 is a test piece.
The photocuring forming equipment of the embodiment can realize real-time monitoring of the surface temperature of the material, and starts the subsequent printing work at the first time after the temperature is reduced to the set temperature. The deformation of the test piece is effectively controlled, and meanwhile, the forming efficiency is maximally improved. The photocuring forming device of the embodiment controls the deformation amount of the test piece by controlling the cooling time and reducing the temperature gradient inside the test piece. Effectively control the test piece and warp, improve test piece size precision. Meanwhile, the extra retention time after the surface of the material is fully cooled is reduced, and the forming efficiency is improved.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.

Claims (8)

1. A stereolithographic apparatus, comprising:
a forming cylinder (2) configured to store a liquid photosensitive resin raw material (4);
a laser (6) configured to irradiate the liquid photosensitive resin raw material (4) with laser light to cure the liquid photosensitive resin raw material (4);
a substrate (1) which is configured in the forming cylinder (2) and moves layer by layer along the vertical direction so as to enable the liquid photosensitive resin raw material (4) to be solidified layer by layer to form a formed piece (5);
a temperature detection device (7) configured to detect the temperature of the cured layer positioned on the uppermost side in real time and acquire the real-time temperature in the process of curing the liquid photosensitive resin raw material (4) layer by layer; and
a controller (9) in communication with the temperature detection device (7) and configured to control the substrate (1) to move downward according to the real-time temperature.
2. The stereolithographic apparatus according to claim 1, wherein said temperature detection device (7) comprises a non-contact temperature detection device disposed above said forming cylinder (2).
3. The stereolithographic apparatus according to claim 1, characterized in that said controller (9) is configured to control said substrate (1) movement according to said real-time temperature and a set temperature.
4. A stereolithographic apparatus according to claim 3, characterized in that said shaped part (5) comprises a plurality of cured layers which are cured one by one and located uppermost one by one, and in that during the layer-by-layer curing, the set temperature of each cured layer located uppermost is the same or different.
5. The stereolithography apparatus according to claim 1, further comprising a substrate holder (8) connected to said substrate (1) and a driving device in driving connection with said substrate holder (8), said driving device being in communication with said controller (9), said driving device driving said substrate holder (8) to move according to a control signal of said controller (9).
6. A photocuring forming method based on the photocuring forming apparatus of claim 1, characterized by comprising the steps of:
controlling a laser (6) to irradiate the liquid photosensitive resin raw material (4) layer by layer so as to solidify the liquid photosensitive resin raw material (4) layer by layer to form a forming piece;
in the process of solidifying the liquid photosensitive resin raw material (4) layer by layer, detecting the temperature of the solidified layer at the uppermost side in real time and acquiring the real-time temperature;
-controlling the downward movement of the substrate (1) for supporting the form (5) in dependence on the real-time temperature.
7. The stereolithography method according to claim 6, wherein controlling the downward movement of the substrate (1) for supporting the shaped part according to the real-time temperature comprises: and when the real-time temperature is below the set temperature, controlling the substrate (1) to move downwards.
8. A stereolithographic method as claimed in claim 6, characterized in that said shaped part (5) comprises a plurality of solidified layers, said plurality of solidified layers being solidified one by one and located uppermost one by one, and the set temperature of each solidified layer located uppermost is the same or different during the layer-by-layer solidification, and said stereolithographic method further comprises determining the set temperature according to the area of the solidified layer.
CN202110126417.2A 2021-01-29 2021-01-29 Photocuring forming equipment and forming method Pending CN114801159A (en)

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Application Number Priority Date Filing Date Title
CN202110126417.2A CN114801159A (en) 2021-01-29 2021-01-29 Photocuring forming equipment and forming method

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Application Number Priority Date Filing Date Title
CN202110126417.2A CN114801159A (en) 2021-01-29 2021-01-29 Photocuring forming equipment and forming method

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005131938A (en) * 2003-10-30 2005-05-26 Jsr Corp Photofabrication method
CN110239086A (en) * 2018-03-08 2019-09-17 三纬国际立体列印科技股份有限公司 The 3D printer and its real time print method of print time can be adjusted in real time

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005131938A (en) * 2003-10-30 2005-05-26 Jsr Corp Photofabrication method
CN110239086A (en) * 2018-03-08 2019-09-17 三纬国际立体列印科技股份有限公司 The 3D printer and its real time print method of print time can be adjusted in real time

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