CN115455508A - Hollow-out structure plate manufacturing method based on 3D printing technology - Google Patents
Hollow-out structure plate manufacturing method based on 3D printing technology Download PDFInfo
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- CN115455508A CN115455508A CN202211150528.8A CN202211150528A CN115455508A CN 115455508 A CN115455508 A CN 115455508A CN 202211150528 A CN202211150528 A CN 202211150528A CN 115455508 A CN115455508 A CN 115455508A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
- G06F30/23—Design optimisation, verification or simulation using finite element methods [FEM] or finite difference methods [FDM]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2119/00—Details relating to the type or aim of the analysis or the optimisation
- G06F2119/04—Ageing analysis or optimisation against ageing
Abstract
The invention discloses a method for manufacturing a hollowed-out plate based on a 3D printing technology, which relates to the technical field of decorative plate processing tools and comprises the steps of establishing a geometric model of the hollowed-out plate, determining a weak area of the hollowed-out plate through finite element analysis, finishing the manufacturing of a hollowed-out plate shell structure based on 3D printing, reinforcing the weak area of the hollowed-out plate structure, and filling the hollowed-out plate shell structure which is printed by 3D printing with a filling material. Compared with the manual carving mode, the method can save a large amount of working time without depending on the skill of a carving worker, thereby avoiding the waste of materials, further improving the yield of products, greatly reducing the production cost, determining the weak area of the hollowed-out plate, reinforcing the weak area of the hollowed-out plate, and improving the overall strength.
Description
Technical Field
The invention relates to the technical field of decorative plate processing tools, in particular to a method for manufacturing a hollow-out structural plate based on a 3D printing technology.
Background
The hollowed-out plate can make the flat plate transparent, and has more fashionable and personalized decorative effect. At present, most of the hollowed-out plates on the market are metal plates or other non-metal plates such as ceramic plates, cement fiber plates and the like, and are all prepared by solid plates due to the limitation of the manufacturing process, and finally hollowed out by the skills of engraving and the like. However, this method has problems of long engraving time, excessive dependence on the skill of the engraving owner, high labor cost, material waste, etc., and is greatly limited by the influence of material performance.
Disclosure of Invention
The invention aims to provide a method for manufacturing a hollowed-out plate based on a 3D printing technology, which is characterized in that the manufacturing of a hollowed-out plate shell structure is completed through 3D printing, and then filling materials are poured in the hollowed-out plate shell, so that the manufacturing of the hollowed-out plate is completed, and the technical problems that the engraving time is long and the engraving skill is excessively depended on the engraving skill of an engraver in the conventional manufacturing method for manufacturing the hollowed-out plate by processing a solid plate through engraving and other skills are solved.
The invention is realized by the following technical scheme:
a method for manufacturing a hollow-out structure plate based on a 3D printing technology comprises the following steps:
establishing a geometric model of the hollow plate structure;
determining a weak area of the hollowed-out plate structure through finite element analysis;
manufacturing the hollow plate shell structure based on 3D printing;
reinforcing the weak area of the hollow plate structure;
and filling the hollow plate structure shell which is printed by 3D with filling materials.
Further, the establishing of the geometric model of the hollow-out structural plate comprises:
determining the geometric shape and the basic size of the hollow plate structure;
and establishing a hollow plate structure model based on 3D modeling software.
Further, determining the weak area of the hollowed-out panel structure through finite element analysis comprises:
carrying out finite element analysis on a geometric model of the hollowed-out plate based on the using environment of the hollowed-out plate through finite element software;
and establishing a weak area of the hollowed-out plate.
Further, accomplish fretwork panel shell structure's preparation based on 3D prints:
leading the outline path of the hollow plate structure led out from the 3D modeling software into a controller of the 3D printer;
print fretwork plate structure shell structure model on the work face that 3D printed based on fretwork plate structure outline route.
Further, carry out reinforcement processing to the weak region of hollow out construction panel and include:
and adding a reinforcing mesh or an FRP grid in the weak area.
Further, use the stopping to print the fretwork panel shell structure of accomplishing to 3D and fill and include:
and pouring transparent materials, semitransparent materials or cement into the hollow plate shell structure.
Further, still include before using the stopping to fill the fretwork plate structure casing that 3D printed the completion:
and connecting pieces are distributed and fixedly arranged in the hollow plate structure shell.
Furthermore, the thickness of the hollow slab structure is 5cm-100cm, the length of the hollow slab structure is 0-2m, and the width of the hollow slab structure is 0-2m.
Further, still include after using the stopping to fill the fretwork plate structure casing that 3D printed the completion:
separating the hollow plate structure from the working plane;
and polishing and grinding the hollow plate structure.
Further, the hollowed-out plate shell structure is formed by printing a thermoplastic material or a photosensitive material.
Compared with the prior art, the invention has the following advantages and beneficial effects:
compared with the manual carving mode, the method can save a large amount of working time without depending on the skill of a carving family, thereby avoiding the waste of materials, further improving the yield of products and greatly reducing the production cost; the finite element analysis is carried out on the hollowed-out plate, the weak area of the hollowed-out plate is determined, then the weak area is reinforced, the overall strength of the hollowed-out plate is improved, and the service life of the hollowed-out plate is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings that are required in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and that those skilled in the art may also derive other related drawings based on these drawings without inventive effort. In the drawings:
FIG. 1 is a displacement cloud diagram of finite element analysis of a hollow plate with a connecting piece;
FIG. 2 is a deformation diagram of a finite element to a hollow plate front side wind pressure test;
FIG. 3 is a schematic diagram showing distribution of damage factors of a finite element to a wind pressure test on the front surface of the hollowed-out panel;
FIG. 4 is a front view of the hollowed-out panel of the present invention;
FIG. 5 is a schematic perspective view of the hollowed-out plate of the present invention;
FIG. 6 is a schematic structural view of the hollow plate of the present invention undergoing reinforcement treatment;
FIG. 7 is a schematic diagram of the FPR grid structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and the accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not used as limiting the present invention.
The invention provides a method for manufacturing a hollow-out structure plate based on a 3D printing technology, which comprises the following steps of:
establishing a geometric model of the hollowed-out plate structure 2;
determining a weak area of the hollowed-out plate structure 2 through finite element analysis;
manufacturing the hollow plate shell structure based on 3D printing;
reinforcing the weak area of the hollowed-out plate structure;
and filling the hollow plate structure shell which is printed by 3D with filling materials.
Compared with the manual carving mode, the method can save a large amount of working time without depending on the skill of a carving family, thereby avoiding the waste of materials, further improving the yield of products and greatly reducing the production cost.
Further optimizing the above embodiment, the establishing of the geometric model of the hollow-out structural plate comprises:
determining the geometrical shape and basic dimensions of the hollow board structure, wherein the basic dimensions comprise the length, the width, the thickness and the like of the hollow board.
And establishing a hollow plate structure model based on 3D modeling software.
The 3D modeling software uses the existing CAD software, such as Solidworks, UG, pro/ENGINEER and the like, the specific shape of the hollowed-out plate can be randomly changed and designed in the 3D modeling software, and the operation is simple and very efficient.
Further optimizing the above embodiment, the determining the weak area of the hollowed-out plate structure through finite element analysis comprises:
carrying out finite element analysis on a geometric model of the hollowed-out plate based on the using environment of the hollowed-out plate through finite element software;
and establishing a weak area of the hollowed-out plate.
Finite Element Analysis (Finite Element Analysis) is to disperse a continuum structure into Finite unit bodies, connect adjacent unit bodies to form a whole by using the nodes of the units, calculate a unit stiffness matrix for each node, and finally reconnect each unit to form a whole according to the original structure by using the balance condition and the boundary condition of the structure.
The stress distribution, the displacement distribution and the like of the whole structure under different boundary conditions can be calculated by using finite element software, so that weak areas, such as design defects (strength and rigidity are the most important factors in structural design) of insufficient strength, excessive local stress, insufficient rigidity, excessive local deformation and the like can be judged, and corresponding local reinforcement measures can be taken in advance.
Finite element analysis is carried out on the geometric model of the hollowed-out plate, the hollowed-out structure plate shown in figures 4-5 is used as an object of finite element analysis, the panel shown in figures 1-3 bears positive wind pressure perpendicular to the surface, the back bolt position of the hollowed-out plate is shown in figure 1, and under the action of the positive wind pressure, the red area in the figure deforms excessively.
The area A in the figure is an area with excessive deformation, and the rigidity of the connecting area B can be enhanced through local reinforcing bars, so that the deformation of the area A in the figure is reduced.
Fig. 3 shows the distribution of tensile damage of the positive wind pressure acting panel (the larger the damage factor, the weaker the local part is), and it can be seen from fig. 3 that the weak area is located in the connection area, so that the overall strength of the panel can be enhanced by arranging ribs in the connection area during the manufacturing process.
Further optimize above-mentioned embodiment, print the preparation of accomplishing fretwork panel shell structure based on 3D:
guiding the outline path of the hollow plate structure led out from the 3D modeling software into a controller of the 3D printer;
print fretwork plate structure shell structure model on the work face that 3D printed based on fretwork plate structure outline route.
The 3D printer discretizes a digital model (CAD file) of a three-dimensional entity into a slice model, then converts the slice model into a walking track of a printing head, and continuously adds materials to a printed product through the printing head, so that the materials are continuously added according to the printing track and are printed layer by layer to form a final entity printed product. Different from the traditional mode of obtaining the final finished product through mould casting and machining fine processing in manufacturing, the 3D printing directly converts the virtual digital entity model into a product, greatly simplifies the production flow, reduces the production cost of materials, and shortens the design and development period of the product. Many different implementations exist today with respect to the main technology type of 3D printing. They differ in the way the prints are stacked in the way the material is available and in the build up of different layers.
At present, the main technical types of 3D printing are selective laser sintering, selective solidification of liquid photosensitive polymers, a fused deposition technology and selective cutting of thin materials, and the hollowed-out plate needs to have certain strength and decorative effect, so that the fused deposition technology is adopted to complete the manufacturing of the hollowed-out plate shell structure in the application. The fused deposition modeling technology needs to slice a 3D model, and the specific working principle is that materials are changed into liquid state by high temperature melting, then small spherical particles are extruded through a nozzle, the particles are immediately solidified after being sprayed out, and a real object is formed by the arrangement and combination of the particles in a three-dimensional space. The technology has higher forming precision and higher strength of a formed object, can form in colors, but has a rough surface after forming.
Further optimize above-mentioned embodiment, strengthen the weak area to hollow out construction panel and handle including:
and reinforcing materials such as reinforcing mesh or FRP grids are added into the weak area. The reinforcing mesh or the FRP grid is installed inside the hollow plate shell structure through connecting pieces such as adhesives or bolts, and finally the reinforcing mesh or the FRP grid is fixed in the hollow plate through pouring filling materials into the hollow plate shell structure.
When fretwork panel was applied to places such as open-air when as the embellishment, because scrape extreme adverse circumstances such as strong wind, some weak areas that intensity is not enough of fretwork panel can be destroyed by strong wind under the effect of strong wind, and reinforcing bar net or FRP grid set up the bulk strength of multiplicable fretwork panel to fretwork panel's life has been increased.
Further optimizing above-mentioned embodiment, use the stopping to fill the fretwork panel shell structure that 3D printed and accomplish including:
transparent materials, semitransparent materials or cement are poured into the hollow plate shell structure, compared with a manual carving mode, the manufacturing efficiency of the hollow plate can be improved by adopting the pouring mode, so that the production speed is improved, and the production cost is also reduced.
The hollow area is filled with some transparent materials, semitransparent materials and the like, the plane integral strength of the hollow plate can be improved, and the hollow plate is matched with light and has stronger artistic exhibition force.
Further optimizing the above embodiment, before filling the 3D printed shell with the hollowed-out plate structure with the filler, the method further comprises:
and connecting pieces are distributed and fixedly arranged in the hollow plate structure shell. The connecting piece can set up a plurality ofly, distributes according to actual needs and sets up the relevant position at fretwork panel, and the setting of connecting piece is for the convenience of the use installation of fretwork panel, passes through modes such as adhesive or bolt with the one end of connecting piece and fixes inside the fretwork panel structure casing, then makes it fix in the fretwork panel structure through pouring the stopping to fretwork panel structure casing is inside.
At present, the hollow-out plate is subjected to the installation of a connecting piece in a multi-mode of punching, the hollow-out plate is mostly made of marble and other materials, the overall strength of the hollow-out plate can be damaged by the punching mode, and the installation of the connecting piece not only needs corresponding drilling equipment to perform installation work, but also needs an operator to have higher work experience.
The pre-buried connecting piece is designed by reasonably dividing plates according to specific vertical surface models and forming various plates with different models by aiming at the vertical surface models which are formed by assembling and connecting a plurality of plates and have larger sizes. The mode has simple process, can avoid the damage caused by punching when connecting granite and marble, and enhances the integral strength of the plane.
The embodiment is further optimized, the thickness of the hollow-out plate structure is 5cm-100cm, the length of the floor plate structure is 0-2m, the width of the floor plate structure is 0-2m, and the length, the width and the thickness of the hollow-out plate structure can be designed according to actual requirements.
Further optimizing the above embodiment, after filling the 3D printed shell with the hollowed-out plate structure with the filler, the method further comprises:
separating the hollow plate structure from the working plane; particularly, the hollow-out plate structure after being manufactured is separated by using water or an oil release agent, and compared with the separation of the hollow-out plate structure from a working panel by directly knocking, the hollow-out plate structure cannot be damaged by adopting the release agent.
And polishing and grinding the hollow plate structure. The surface of the poured hollow plate is rough, and in order to ensure the attractiveness of the hollow plate, the surface of the poured hollow plate is polished by using some polishing tools, so that the hollow plate is more attractive.
The embodiment is further optimized, and the hollow plate structure is formed by printing thermoplastic materials or photosensitive materials. The thermoplastic material is an FDM fused deposition molding thermoplastic 3D printing material, has the material characteristics of good strength, good toughness, good anti-collision performance, strong solvent resistance and stable durability, and can ensure the overall strength of the hollowed-out plate.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A method for manufacturing a hollow-out structural plate based on a 3D printing technology is characterized by comprising the following steps:
establishing a geometric model of the hollow plate structure;
determining a weak area of the hollowed-out plate structure through finite element analysis;
manufacturing the hollow plate shell structure based on 3D printing;
reinforcing the weak area of the hollow plate structure;
and filling the hollow plate structure shell which is printed by 3D with filling materials.
2. The method for manufacturing the hollowed-out structural panel based on the 3D printing technology according to claim 1,
the method for establishing the geometric model of the hollow-out structural plate comprises the following steps:
determining the geometric shape and the basic size of the hollow plate structure;
and establishing a hollow plate structure model based on 3D modeling software.
3. The method for manufacturing the hollowed-out structural panel based on the 3D printing technology according to claim 2,
determining weak areas of the fretboard structure by finite element analysis comprises:
carrying out finite element analysis on a geometric model of the hollowed-out plate based on the using environment of the hollowed-out plate through finite element software;
and establishing a weak area of the hollowed-out plate.
4. The method for manufacturing the hollowed-out structural panel based on the 3D printing technology according to claim 2,
accomplish fretwork panel shell structure's preparation based on 3D prints:
leading the outline path of the hollow plate structure led out from the 3D modeling software into a controller of the 3D printer;
print fretwork plate structure shell structure model on the work face that 3D printed based on fretwork plate structure outline route.
5. The method for manufacturing the hollow-out structural plate based on the 3D printing technology according to claim 1, wherein the reinforcing treatment of the weak area of the hollow-out structural plate comprises the following steps:
and adding a reinforcing mesh or an FRP grid in the weak area.
6. The method for manufacturing the hollowed-out structural sheet based on the 3D printing technology according to claim 1, wherein the filling of the hollowed-out sheet shell structure finished by the 3D printing with the filling material comprises:
and pouring transparent materials, semitransparent materials or cement into the hollow plate shell structure.
7. The method for manufacturing the hollowed-out structural panel based on the 3D printing technology according to claim 6, further comprising, before filling the hollowed-out panel structural shell after the 3D printing with the filling material:
and connecting pieces are distributed and fixedly arranged in the hollow plate structure shell.
8. The method for manufacturing the hollow-out structural plate based on the 3D printing technology according to claim 1, wherein the thickness of the hollow-out plate structure is 5cm-100cm, the length of the hollow-out plate structure is 0-2m, and the width of the hollow-out plate structure is 0-2m.
9. The method for manufacturing the hollowed-out structural sheet material based on the 3D printing technology according to claim 1, wherein after filling the hollowed-out structural sheet material shell finished by the 3D printing with the filling material, the method further comprises:
separating the hollow plate structure from the working plane;
and polishing and grinding the hollow plate structure.
10. The method for manufacturing the hollowed-out structure plate based on the 3D printing technology according to claim 4, wherein the hollowed-out plate shell structure is formed by printing a thermoplastic material or a photosensitive material.
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| CN202211150528.8A CN115455508B (en) | 2022-09-21 | 2022-09-21 | 3D printing technology-based hollow structure plate manufacturing method |
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| CN202211150528.8A CN115455508B (en) | 2022-09-21 | 2022-09-21 | 3D printing technology-based hollow structure plate manufacturing method |
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| CN115455508B CN115455508B (en) | 2024-04-02 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227875A (en) * | 2018-09-06 | 2019-01-18 | 浙江大学 | A kind of method of construction of 3D printing braiding integrated molding building |
| CN110528882A (en) * | 2019-08-28 | 2019-12-03 | 宁夏大学 | It is a kind of based on topological optimization assembled hollow out building exempt from demoulding template and preparation method thereof |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109227875A (en) * | 2018-09-06 | 2019-01-18 | 浙江大学 | A kind of method of construction of 3D printing braiding integrated molding building |
| CN110528882A (en) * | 2019-08-28 | 2019-12-03 | 宁夏大学 | It is a kind of based on topological optimization assembled hollow out building exempt from demoulding template and preparation method thereof |
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