KR102505650B1 - Inexpensive and 3D printing parts fabrication methods and 3D printing components that are fabricated using this for high-performance - Google Patents

Abstract

The present invention relates to a method for manufacturing cheap and high-functional 3D printing parts and cheap and high-functional 3D printing parts using the same. More specifically, the method for manufacturing cheap and high-functional 3D printing parts performed by a processor includes the steps of: designing parts; determining a load area of the parts; determining an area to which a reinforcing part is to be coupled in the parts; performing phase optimization of the parts except for the coupling area of the reinforcing part; determining the type of the reinforcing part; and determining a coupling method of the reinforcement part.

Description

Inexpensive and 3D printing parts fabrication methods and 3D printing components that are fabricated using this for high-performance}

The present invention relates to a manufacturing method of a cheap and high-functional 3D printing part and a cheap and high-functional 3D printing part using the same, and more particularly, phase optimization is performed in a part other than the load area of the part, and reinforcing parts are installed near the load area It relates to a manufacturing method of inexpensive and highly functional 3D printing parts for providing high-strength parts and inexpensive and highly functional 3D printing parts using the same.

In general, 3D printing is a manufacturing technology that has recently been in the limelight. It cuts and analyzes three-dimensional objects as if integrating them according to three-dimensional design drawings, solidifies thin layers by injecting them into plastic liquid or other raw materials, and sequentially stacks them. It refers to the technology of manufacturing a three-dimensional solid object by doing so, and it shows superiority in various aspects such as speed, price, and ease of use compared to traditional material processing technology.

On the other hand, 3D printing has various methods depending on raw materials such as liquid, powder, and solid, and hardening sources such as laser, heat, and light. , SLS (Selective Laser Sintering), PolyJet (Photopolymer Jetting Technology), DMT (Direct Metal Tooling), PBP (Powder Bed & inkjet head 3d printing), LOM (Laminated Object Manufacturing), and the like.

In addition, solidification modeling materials such as wires and filaments formed of thermoplastics are supplied through a supply reel and a transfer reel, and the supplied modeling materials are melted and discharged from a heater nozzle mounted on a transfer mechanism that moves three-dimensionally with respect to the worktable. The molten resin extrusion molding method (FDM), in which a two-dimensional planar shape is formed and layered layer by layer to form a three-dimensional shape, is widely used.

Recently, a 3D manufacturing system for manufacturing target mechanical element parts through a 3D printer has been developed.

However, the conventional 3D manufacturing system sequentially laminates and forms a plurality of layers corresponding to the cross section of the target mechanical component to complete the target mechanical element component, and as the bonding surface is formed between the layers, the overall rigidity of the structure is increased. A serious problem of deterioration occurred, and a problem in that the physical properties of the part were limited because it was made of a general single material occurred.

That is, as shown in FIG. 1, the conventional parts that are phase-optimized in consideration of only the load conditions without considering the fastening area of the reinforcing parts do not consider the design optimization and phase optimization in the load area of the parts, so the stiffness is low and the 3D printer There was a problem in that various parts could not be manufactured due to limitations in manufacturing through the.

Republic of Korea Patent Publication No. 10-2020-0121927

The present invention has been devised in view of the above problems, and an object of the present invention is to optimize the phase in a part other than the load area of the part and install a reinforcing part in the vicinity of the load area to provide a cheap and high-strength part. And to provide a manufacturing method of high-performance 3D printing parts and cheap and high-performance 3D printing parts using the same.

Another object of the present invention is to provide a method for manufacturing a low-cost and high-function 3D printed part for reducing the stability and manufacturing cost of the part by using a low-cost reinforcing part in the load area and a low-cost and high-function 3D printed part using the same.

Another object of the present invention is to provide a method for manufacturing inexpensive and high-performance 3D printing parts for reducing the amount of laminated material and shortening the manufacturing time of parts by 3D printing parts except for the fastening area of reinforcing parts, and to provide the same. It is to provide inexpensive and highly functional 3D printing parts using

Objects of the embodiments of the present invention are not limited to the above-mentioned purposes, and other objects not mentioned above will be clearly understood by those skilled in the art from the description below. .

According to the features for achieving the above object, the present invention is a method for manufacturing a low-cost and high-performance 3D printing part performed by a processor,

designing parts;

determining a load region of the component;

Determining an area in the part to which a reinforcing part is to be fastened;

performing phase optimization of the part except for the fastening region of the reinforcing part;

determining the type of the reinforcing part;

Determining the fastening method of the reinforcement part;

A manufacturing method of inexpensive and highly functional 3D printing parts comprising a may be provided.

In addition, according to an embodiment of the present invention, in the step of determining the load area of the component,

Defining the load region as a fixed region in which shape deformation does not occur; a manufacturing method of a low-cost and high-performance 3D printing part further comprising may be provided.

In addition, according to an embodiment of the present invention, in the step of determining the type of the reinforcing part,

A manufacturing method of a low-cost and high-performance 3D printing part further comprising the step of quantitatively evaluating the physical properties of each of the parts and the reinforcing parts as specimens may be provided.

In addition, according to an embodiment of the present invention, in the step of determining the fastening method of the reinforcing part,

Manufacturing the part except for the fastening region through 3D printing; a manufacturing method of a low-cost and high-performance 3D printing part further comprising may be provided.

In addition, according to an embodiment of the present invention, in the step of manufacturing the part except for the fastening area through the 3D printing,

Fastening the reinforcing part to the fastening area; A manufacturing method of a low-cost and high-functional 3D printing part further comprising may be provided.

In addition, according to an embodiment of the present invention, the fastening area,

A method of manufacturing a cheap and highly functional 3D printing part in which a screw thread is formed on the inside and a screw thread is formed on one side of the reinforcing part to be screwed to each other can be provided.

In addition, according to an embodiment of the present invention, the fastening area,

A keyway is formed inside, and a key is formed on one side of the reinforcing part to provide a method of manufacturing a low-cost and high-performance 3D printing part in which keys are mutually fastened.

In addition, according to an embodiment of the present invention, the fastening area,

A method of manufacturing a cheap and highly functional 3D printing part that is filled with a filler and mutually fastened with one side of the reinforcing part may be provided.

In addition, according to an embodiment of the present invention, a low-cost and high-function 3D printing part using a manufacturing method of a low-cost and high-function 3D printing part can be provided.

According to the manufacturing method of cheap and high-functional 3D printing parts of the present invention and cheap and high-functional 3D printing parts using the same, phase optimization is performed in parts other than the load area of the part, and reinforcing parts are installed near the load area to obtain high-strength parts. It provides an effect.

In addition, by using inexpensive reinforcing parts in the load area, there is an effect of reducing the stability of the parts and the manufacturing cost.

In addition, since parts can be 3D printed by excluding the fastening area of the reinforcing parts, the amount of laminated material can be reduced and the manufacturing time of parts can be shortened.

1 is a conventional part view optimized for topology considering only the load condition without considering the fastening area of the reinforcing part;
Figure 2 is a block diagram showing a manufacturing method of inexpensive and high-performance 3D printing parts according to an embodiment of the present invention;
3 is a perspective view showing a cheap and high-performance 3D printing part according to an embodiment of the present invention;
4 is a perspective view showing a reinforcing part according to an embodiment of the present invention;
5 is a perspective view showing a cheap and high-performance 3D printing part according to another embodiment of the present invention;
6 is a perspective view showing a cheap and highly functional 3D printing part according to another embodiment of the present invention;
7 is a perspective view showing a cheap and highly functional 3D printing part according to another embodiment of the present invention.

Objects, other objects, features and advantages of the present invention below will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and the spirit of the present invention will be sufficiently conveyed to those skilled in the art.

Embodiments described and illustrated herein also include complementary embodiments thereof.

In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms 'comprise' and/or 'comprising' used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been prepared to more specifically describe the invention and aid understanding. However, those who have knowledge in this field to the extent that they can understand the present invention can recognize that it can be used without these various specific contents. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not greatly related to the invention are not described to prevent confusion in describing the present invention.

2 is a block diagram showing a manufacturing method of a cheap and highly functional 3D printing part according to an embodiment of the present invention, Figure 3 is a perspective view showing a cheap and high functional 3D printing part according to an embodiment of the present invention, Figure 4 is a perspective view showing a reinforcing part according to an embodiment of the present invention, Figure 5 is a perspective view showing a low-cost and high-function 3D printing part according to another embodiment of the present invention, Figure 6 is another embodiment of the present invention It is a perspective view showing an inexpensive and highly functional 3D printing part according to another embodiment, and FIG. 7 is a perspective view showing an inexpensive and highly functional 3D printing part according to another embodiment of the present invention.

As shown in FIGS. 2 to 7, the method of manufacturing a cheap and high-functional 3D printing part according to the present invention is performed by a processor, in which the part 100 is designed (S10). And, determining the load area of the part (S20), determining the area to fasten the reinforcing part in the part (S30), and optimizing the phase of the part excluding the fastening area of the reinforcing part Step (S40), determining the type of the reinforcement part (S50), and determining the fastening method of the reinforcement part (S60).

First, the step of designing a component (S10) is a step of designing the component 100.

In the step of designing the part 100 ( S10 ), a model having an external shape of the part 100 may be created in consideration of the shape, size, and tolerance of the part.

Here, the component 100 may include a design space to be designed and a non-design space to be excluded from design.

Meanwhile, in addition to the design of the shape of the part 100, the processor may receive design constraints such as load conditions and boundary conditions. may be entered.

In addition, one side of the component 100 is preferably manufactured by inserting and installing the reinforcing component 200 to be described below, or considering the geometrical tolerance in consideration of the fixing area 30 for coupling with other components.

On the other hand, the part 100 may include various parts, but in the present invention, it is preferable to manufacture industrial parts (automotive parts, etc.) for mass production with a 3D printer so as to withstand high loads.

The step of determining the load area of the component (S20) is performed after the step of designing the component (S10).

In the step of determining the load area of the part (S20), the load area 10 of the designed part 100 is determined.

That is, by determining a portion vulnerable to load in the part 100 as the load area 10 and determining and installing a reinforcing part 200 to be described below in the load area 10, the part 100 is reinforced and rigidity is simultaneously improved. this improves

In addition, in the step of determining the load region of the component (S20), the step of defining the component 100 as a fixed region 30 in which shape deformation does not occur (S21) may be further included.

Furthermore, it is desirable to define so that shape deformation does not occur even in the fixing area 30 for coupling with other parts in the part 100.

Here, the load area 10 and the fastening area 20, which will be described below, are defined to be capable of shape deformation, and are created as various models that are phase-optimized according to load conditions.

The step of determining the fastening area for fastening the reinforcement part to the load area (S30) is performed after the step of determining the load area of the part (S20).

In the step of determining the fastening area for fastening the reinforcing part to the load area (S30), the fastening area 20 is selected at the optimal position among the load area 10 in consideration of the shape, material, strength, etc. of the selected reinforcing part 200. this should be taken into account

It should be noted that the fastening area 20 may be considered while determining the load area 10 at step S20 described above, or may be considered while determining the reinforcing part 200 at step S50.

The step of optimizing the phase of the part except for the fastening region of the reinforcing part (S40) is performed after the step of determining the fastening region for fastening the reinforcing part to the load region (S30).

Here, the processor receives design constraints such as load conditions and boundary conditions of the part 100, and the design constraints receive conditions for the part 100, which is a design target, from the user.

Here, the component 100 may generate various models topologically optimized according to load conditions.

Here, topology optimization refers to an optimization method for optimizing the distribution of materials within the design space for given load and boundary conditions. As a method of phase optimization, for example, a density method or a homogenization method may be performed.

Therefore, for the part 100, various topology-optimized models are created by receiving various load conditions from the user.

That is, a generative design of the component 100 may be performed through the step (S20) of performing phase optimization of the component 100 by receiving load conditions and boundary conditions.

The step of determining the type of reinforcing part (S50) is performed after the phase optimization of the part except for the reinforcing part fastening part (S40).

The step of determining the type of the reinforcing part (S50) is a step of determining the type of the reinforcing part 200 in order to reinforce the load area 10 of the part 100 through the reinforcing part 200.

Here, the reinforcing part 200 comprehensively determines the position, strength, etc. of the load area 10 of the part 100 generated by various models through phase optimization by the user's judgment to reinforce the part 200 determines the type of

In addition, as shown in FIG. 3, the reinforcing part 200 may be manufactured in a “V” shape to reinforce the gap between the parts 100 provided at a predetermined interval.

In addition, as shown in FIG. 3, the reinforcing part 200 may be manufactured in a pin shape, the first reinforcing part 210 having a screw thread formed on the outer circumferential surface or a screw thread formed on one side and a screw head formed on the other side. It is possible to select any one of the second reinforcing part 220, the third reinforcing part 230 having a plain pattern, or the fourth reinforcing part 240 formed in a hollow shape.

At this time, it is revealed that the above-described types of reinforcing parts 240 can be implemented through various embodiments by those skilled in the art.

That is, through the selection of the reinforcing part 200, the rigidity of the part 100 can be improved by reinforcing the load region 10, which is a portion vulnerable to load in the part 100.

On the other hand, in the step of determining the type of reinforcing parts to be installed in the load area (S50), the part 100 and the reinforcing part 200 may be sampled and quantitatively evaluated for physical properties (S51). can

Here, the part 100 is manufactured by laminating materials through 3D printing, and the reinforcing part 200 may be manufactured by laminating materials through 3D printing or may include a separate inexpensive part.

Through this, reliability can be evaluated through tests such as quantitative evaluation of physical properties between the part 100 and the reinforcing part 200 before mass production of parts by fastening the part 100 and the reinforcing part 200.

The step of determining the fastening method of the reinforcing part (S60) is performed after the step of determining the type of the reinforcing part (S50).

In the step of determining the fastening method of the reinforcing part (S60), a fastening method for fastening the reinforcing part 200 to the fastening area 20 may be determined.

For example, in the fastening area 20, a screw thread is formed on the inside and a screw thread is formed on one side of the reinforcing part 200 to implement a fastening method in which mutual screw fastening is performed.

Here, when the shape of the part 100 is provided as shown in FIG. 5, since a load is applied to the bracket formed in the vertical direction, a screw thread is formed in the corresponding fastening area 20 and a second screw head is formed on the other side. By screwing the reinforcing part 220, the rigidity of the part 100 can be improved.

In addition, when the shape of the part 100 is provided as shown in FIGS. 6 and 7, a load is applied to the shaft formed with a long hole in the longitudinal direction at the bottom, so a screw thread is formed in the corresponding fastening area 20 and a screw thread is formed on the other side. The second reinforcing part 220 on which the head is formed is screwed, or the first reinforcing part 210 on which a screw thread is formed on the outer circumferential surface is screwed, or the second reinforcing part having a screw thread on one side and a screw head on the other side. The rigidity of the component 100 can be improved by screwing the component 220 or by inserting and fastening the smooth third reinforcing component 230 and the hollow fourth reinforcing component 240 .

Furthermore, in the fastening area 20, a key groove is formed inside and a key is formed on one side of the reinforcing part to implement a fastening method in which the keys are fastened to each other.

In addition, the fastening area 20 may implement a fastening method in which a filler is filled therein and mutually fastened with one side of the reinforcing part 200 .

At this time, it is revealed that the above-described fastening method can be implemented through various embodiments by those skilled in the art.

In the step of determining the fastening method of the reinforcing parts (S60), a step of manufacturing parts excluding the fastening area through 3D printing (S61) may be further included, and the step of fastening the reinforcing parts to the fastening area (S62) may further include.

That is, when the part 100 is manufactured through 3D printing in step S61, the amount of laminated material can be reduced and the manufacturing time of the part 100 can be shortened by excluding the fastening area 20.

At this time, the rigidity of the part 100 may be improved by fastening the part 100 to the fastening area 20 of the part 100 that has not been manufactured in step S62.

As a result, it is possible to manufacture inexpensive and high-functional 3D printing parts through the above-described manufacturing method of inexpensive and high-functional 3D printing parts.

Therefore, according to the manufacturing method of cheap and high-functional 3D printing parts of the present invention and cheap and high-functional 3D printing parts using the same, phase optimization is performed in parts other than the load area of the part, and reinforcing parts are installed near the load area to obtain high-strength It has the effect of providing parts.

In addition, by using inexpensive reinforcing parts in the load area, there is an effect of reducing the stability of the parts and the manufacturing cost.

In addition, since parts can be 3D printed by excluding the fastening area of the reinforcing parts, the amount of laminated material can be reduced and the manufacturing time of parts can be shortened.

Since the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various equivalents that can replace them at the time of this application It should be understood that there may be variations and examples.

10: load area 20: fastening area
30: fixed area 100: parts
200: reinforcing part 210: first reinforcing part
220: second reinforcing part 230: third reinforcing part
240: 4th reinforcing part

Claims (9)

In the manufacturing method of inexpensive and high-performance 3D printing parts performed by a processor,
designing parts;
determining a load region of the component;
Determining an area in the part to which a reinforcing part is to be fastened;
performing phase optimization of the part except for the fastening region of the reinforcing part;
determining the type of the reinforcing part;
Including; determining the fastening method of the reinforcing part,
In the step of determining the load area of the part,
Defining a fixed region in which shape deformation does not occur in the part; further comprising,
Determining the load area of the part,
A portion vulnerable to load in the part is determined as the load area, and the shape deformation is not generated in the fixing area for coupling with other parts in the part, and the load area and the fastening area are defined so that shape deformation is possible. to create a topology-optimized model according to the load condition,
The step of determining the region to which the reinforcing part is fastened,
The fastening area is determined in the load area in consideration of the shape, material and strength of the selected reinforcing part,
The step of determining the type of the reinforcing part,
Reinforcing between the parts provided at regular intervals by determining the reinforcing parts in a V-shape or pin shape so as to reinforce the load area and improve the rigidity of the part
Manufacturing method of low-cost and high-performance 3D printing parts.
delete The method of claim 1,
In the step of determining the type of the reinforcing part,
Manufacturing method of inexpensive and high-performance 3D printing parts, characterized in that it further comprises; the step of quantitatively evaluating the physical properties of each of the parts and the reinforcing parts as specimens.
The method of claim 1,
In the step of determining the fastening method of the reinforcing part,
Manufacturing the part except for the fastening area through 3D printing; manufacturing method of inexpensive and high-performance 3D printing parts, characterized in that it further comprises.
The method of claim 4,
In the step of manufacturing the part except for the fastening area through the 3D printing,
Fastening the reinforcing part to the fastening area; Manufacturing method of cheap and high-performance 3D printing parts, characterized in that it further comprises.
The method of claim 1,
The fastening area is
A method of manufacturing an inexpensive and high-performance 3D printing part, characterized in that a screw thread is formed on the inside, and a screw thread is formed on one side of the reinforcing part to be screwed to each other.
The method of claim 1,
The fastening area is
A method of manufacturing a cheap and high-performance 3D printing part, characterized in that a keyway is formed therein, and a key is formed on one side of the reinforcing part so that the key is fastened to each other.
The method of claim 1,
The fastening area is
A method of manufacturing a cheap and highly functional 3D printing part, characterized in that the filling material is filled inside and mutually fastened with one side of the reinforcing part.
Inexpensive and highly functional 3D printing parts using the manufacturing method of any one of claims 1 and 3 to 8.

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