KR102318739B1 - Torch for additive manufacturing - Google Patents

Abstract

The present invention relates to a torch for additive manufacturing. More specifically, the torch for additive manufacturing of the present invention comprises: a torch unit discharging a laminated material heated by a heat source through a torch nozzle; a torch driving unit for controlling the discharge direction of the torch nozzle so that the laminated material can be laminated according to a preset modeling; a laminated material guide and the torch unit for preventing the discharged laminated material from flowing and falling; and a control unit for controlling the torch moving unit and the laminated material guide. An objective of the present invention is to improve process efficiency by preventing flow and fall of the laminated material.

Description

TORCH FOR ADDITIVE MANUFACTURING

The present invention relates to a torch for additive manufacturing. More particularly, it relates to a torch capable of preventing the flow and fall of the laminate and improving the surface roughness when performing additive manufacturing (AM).

Unless otherwise indicated herein, the material described in this section is not prior art to the claims of this application, and inclusion in this section is not an admission that it is prior art.

Recently, a 3D printing method, a technology for manufacturing a metal structure by heating a filler metal and then additive manufacturing has been developed.

The additive manufacturing (AM) technology of metal structures using a laser as a heat source has higher precision and better surface roughness than arc welding. However, there are disadvantages in that the welding rate is relatively low and the production cost such as powder or heat source equipment is expensive.

Due to these characteristics, it is currently easy to manufacture a small precision structure, but due to the development of manufacturing technology that can gradually improve the welding speed, the scope of application is being extended to a large precision metal structure.

The additive manufacturing technology of metal structures is largely divided into powder and wire in the case of welding based on filler metal. In case of using powder filler metal, lamination is mainly performed using a laser as a heat source, and in case of using wire filler metal, lamination is performed using laser, electron beam and arc as heat source.

GMAW, TIG, and plasma welding are largely used for additive manufacturing of metal structures using an arc as a heat source. Although the production cost is low due to the high welding speed, there are problems in that the precision is low and the surface roughness is poor.

Accordingly, the present invention intends to propose a torch for enhanced additive manufacturing capable of improving surface roughness while having a high deposition rate.

Registered Patent Publication No. 10-1164716

An embodiment of the present invention aims to provide a torch for additive manufacturing.

In addition, it is an object of the present invention to improve process efficiency by preventing the flow and fall of the laminate.

Another object of the present invention is to provide a torch for additive manufacturing capable of improving the surface roughness of a laminate.

It is also an object of the present invention to provide a torch for additive manufacturing with means capable of assisting in cooling the heated laminate.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. will be able

In order to achieve the above object, the torch for additive manufacturing according to an embodiment of the present invention is a torch unit for discharging a laminated material heated by a heat source through a torch nozzle, the laminated material can be laminated according to a preset modeling It may include a torch moving part for controlling the discharge direction of the torch nozzle, a stacking material guide for preventing flow and falling of the discharged stacked material, and a controller for controlling the torch part, the torch movable part, and the stacking material guide .

At this time, the torch unit includes a lamination material supply unit for supplying an external lamination material to the inside, a heat source unit for heating the lamination material supplied through the lamination material supply unit, and a torch nozzle for discharging the laminate material heated by the heat source unit. and a protective gas supply unit for discharging the protective gas in a direction in which the stacking material is discharged.

At this time, the stacking material guide includes at least one guide plate supporting the outer surface of the stacking material discharged from the torch unit and a guide movable part interposed between the torch unit and the guide plate to control the position of the guide plate. may include

In this case, the guide movable part may include a rotating part that can rotate along the outer surface of the torch part, and a joint part having one end connected to the rotating part and the other end connected to the guide plate to adjust the height and angle of the guide plate. can

In this case, the guide plate may be formed to have a width corresponding to the width of the stacking material.

In this case, the guide plate may be formed of at least one or more of copper, carbon composite, carbon tube, graphite, and graphene.

In this case, the guide plate may include a coolant hose positioned on an outer surface or inside of the guide plate, and a pump for injecting coolant in and out through both ends of the coolant hose.

In addition, in the additive manufacturing method according to an embodiment of the present invention, in a method of additive manufacturing by discharging a laminate according to a preset modeling, the discharge direction of the torch nozzle according to a preset modeling through a control unit Controlling the torch moving part to control the, through the control unit, the step of controlling the position of the guide plate to support the outer surface of the discharged laminated material, through the control unit, the amount of the laminated material discharged, cooling of the laminated material Calculating the moving speed of the torch moving part based on the speed and the width of the guide plate, and through the control unit, the torch nozzle and the torch moving part to discharge the stacked material according to the modeling while maintaining the moving speed and controlling the guide plate.

As such, one embodiment of the present invention has a technical effect in terms of proposing an enhanced torch for additive manufacturing.

In addition, according to the present invention, it is possible to prevent the flow and fall of the lamination material, it is possible to increase the amount of one-time lamination of the lamination material, thereby improving the process efficiency.

In addition, according to the present invention, by improving the surface roughness of the laminate, it is possible to reduce or omit the surface post-processing to improve productivity.

In addition, according to the present invention, it is possible to provide a torch for additive manufacturing provided with means for assisting cooling of the heated laminate.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be.

Other aspects, features and benefits as described above of certain preferred embodiments of the present invention will become more apparent from the following description taken in conjunction with the accompanying drawings.
1 is a side view of a torch for additive manufacturing according to an embodiment of the present invention.
2 is a cross-sectional view of a torch unit according to an embodiment of the present invention.
3 is a front view and a side view of a laminate guide according to an embodiment of the present invention.
4 is an exemplary view of the use of the laminate guide according to an embodiment of the present invention.
5 is a view illustrating the use of a multi-layered material guide according to an embodiment of the present invention.
6 is an exemplary view showing the standard of a guide plate according to an embodiment of the present invention.
7 is an exemplary view of a cooling member applied to a guide plate according to an embodiment of the present invention.
It should be noted that throughout the drawings, like reference numerals are used to denote the same or similar elements, features, and structures.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In describing the embodiments, descriptions of technical contents that are well known in the technical field to which the present invention pertains and are not directly related to the present invention will be omitted. This is to more clearly convey the gist of the present invention without obscuring the gist of the present invention by omitting unnecessary description.

For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings. In addition, the size of each component does not fully reflect the actual size. In each figure, the same or corresponding elements are assigned the same reference numerals.

Advantages and features of the present invention, and a method for achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains. It is provided to fully inform the possessor of the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

At this time, it will be understood that each block of the flowchart diagrams and combinations of the flowchart diagrams may be performed by computer program instructions. These computer program instructions may be embodied in a processor of a general purpose computer, special purpose computer, or other programmable data processing equipment, such that the instructions performed by the processor of the computer or other programmable data processing equipment are not described in the flowchart block(s). It creates a means to perform functions. These computer program instructions may also be stored in a computer-usable or computer-readable memory that may direct a computer or other programmable data processing equipment to implement a function in a particular manner, and thus the computer-usable or computer-readable memory. It is also possible that the instructions stored in the flow chart block(s) produce an article of manufacture containing instruction means for performing the function described in the flowchart block(s). The computer program instructions may also be mounted on a computer or other programmable data processing equipment, such that a series of operational steps are performed on the computer or other programmable data processing equipment to create a computer-executed process to create a computer or other programmable data processing equipment. It is also possible that instructions for performing the processing equipment provide steps for performing the functions described in the flowchart block(s).

Additionally, each block may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s). It should also be noted that in some alternative implementations it is also possible for the functions recited in blocks to occur out of order. For example, two blocks shown one after another may in fact be performed substantially simultaneously, or it is possible that the blocks are sometimes performed in the reverse order according to the corresponding function.

At this time, the term '~ unit' used in this embodiment means software or hardware components such as field-programmable gate array (FPGA) or ASIC (Application Specific Integrated Circuit), and '~ unit' refers to what role carry out the However, '-part' is not limited to software or hardware. The '~ unit' may be configured to reside on an addressable storage medium or may be configured to refresh one or more processors. Thus, as an example, '~' denotes components such as software components, object-oriented software components, class components, and task components, and processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. The functions provided in the components and '~ units' may be combined into a smaller number of components and '~ units' or further separated into additional components and '~ units'. In addition, components and '~ units' may be implemented to play one or more CPUs in a device or secure multimedia card.

In describing the embodiments of the present invention in detail, an example of a specific system will be mainly targeted, but the main subject matter to be claimed in the present specification is to extend the scope disclosed herein to other communication systems and services having a similar technical background. It can be applied within a range that does not deviate significantly, and this will be possible at the discretion of a person with technical knowledge skilled in the art.

1 is a side view of a torch 100 for additive manufacturing according to an embodiment of the present invention.

Referring to FIG. 1 , a torch 100 for additive manufacturing according to an embodiment of the present invention may include a torch part 110 , a torch movable part 120 , a stacking material guide 130 , and a controller 140 . and additive manufacturing can be performed to produce a workpiece.

In more detail, the torch unit 110 may discharge the laminated material 200 heated by the heat source through the torch nozzle 115 . At this time, the torch unit 110 receives the external lamination material 200 through the lamination material supply unit 111 to the inside, heats the lamination material 200 through the heat source unit 113 , and a torch nozzle 115 . ) through the heated laminate 200 may be discharged to the outside. In addition, the torch unit 110 may further include a protection gas supply unit 117 for discharging the protection gas in a direction in which the heated lamination material 200 is discharged. The torch unit 110 will be described later in more detail with reference to FIG. 2 .

At this time, the laminate 200 may be at least one of polymer, metal, ceramic, etc., and may be supplied in the form of powder or wire. Accordingly, the stacking material supply unit 111 may be differently generated depending on the shape of the stacking material 200 .

In addition, the torch moving part 120 may control the discharge direction of the torch nozzle 115 so that the stacking material 200 can be stacked according to a preset modeling. At this time, the torch movable part 120 may be composed of a combination of at least one or more joints 123 and one or more rod parts 121, and the joints 123 may be formed to allow free movement on a three-dimensional basis. In more detail, each joint 123 may be formed to enable yaw, pitch, and roll motion to freely control the torch unit 110 .

In addition, the stacking material guide 130 may prevent the discharged stacking material 200 from flowing and falling. The prior art mainly uses a laser heat source, uses a very small focal point for energy concentration of the laser heat source, and has a problem in that productivity is lowered due to the small size of the focal point. In order to solve this problem, an attempt has been made to use an arc heat source having higher energy than the laser heat source, but there is a problem in that the laminate 200 flows down due to the high energy. To this end, the laminated material guide 130 according to an embodiment of the present invention supports at least one side so that the heated laminated material 200 discharged through the torch nozzle 115 can maintain its shape in a preset modeling. It is possible to prevent the flow-down of the laminated material 200 . More preferably, it is preferable to support both sides of the discharged laminate 200 . In more detail, it will be described later with reference to FIGS. 3 to 7 .

In addition, the control unit 140 may control the torch unit 110 , the torch moving unit 120 , and the stacking material guide 130 . In more detail, the control unit 140 according to an embodiment of the present invention controls the torch moving unit 120 so that the torch unit 110 can move according to a preset modeling, and the moving speed of the torch unit 110 . It is possible to control the amount and the discharge speed of the laminated material 200 discharged according to the method, and to control the position and angle of the laminated material guide 130 according to a preset modeling. Hereinafter, descriptions of the operations of the torch unit 110 , the torch moving unit 120 , and the stacking material guide 130 may be premised on the operation based on a control signal by the control unit 140 .

2 is a cross-sectional view of the torch unit 110 according to an embodiment of the present invention.

Referring to FIG. 2 , the torch unit 110 according to an embodiment of the present invention may include a lamination material supply unit 111 , a heat source unit 113 , a torch nozzle 115 , and a protective gas supply unit 117 . . In more detail, the torch unit 110 according to an embodiment of the present invention may heat the stacking material 200 and discharge it to be stacked according to a preset modeling.

At this time, the lamination material supply unit 111 may supply the external lamination material 200 to the inside. As described above, the lamination material 200 may be supplied in powder or wire form (the drawing shows a wire or rod form as an example), and at this time, the lamination material supply unit 111 is formed in a cylindrical shape to form a torch unit. (110) may be located in the center. In addition, the lamination material supply unit 111 may control the supply speed of the lamination material 200 according to the control signal of the control unit 140 .

The heat source unit 113 may heat the laminated material 200 supplied to the inside through the laminated material supply unit 111 before discharging it to the outside. At this time, the heat source may use at least one of a laser heat source and an arc heat source. At this time, the heat source 113 may heat the laminate 200 discharged through the torch nozzle 115 to enable molding according to a preset modeling. At this time, the arc heat source has a high energy level, so that the laminate 200 is excessively heated, so that a flow fall may occur. Accordingly, one embodiment of the present invention can improve the surface roughness of the discharged laminate 200 while preventing the flow and fall of the laminate 200 by including the laminate guide 130 .

The torch nozzle 115 may discharge the laminate 200 heated by the heat source 113 . At this time, the torch nozzle may be formed in a funnel shape with an open lower edge so that the heated lamination material 200 can be accurately discharged according to a preset modeling.

The protective gas supply unit 117 may discharge the protective gas in a direction in which the stacking material 200 is discharged. At this time, the protective gas serves to prevent the molten laminate 200 from being contaminated by oxygen, nitrogen and moisture in the atmosphere.

Figure 3 (a) is a front view of the laminate guide 130 according to an embodiment of the present invention, Figure 3 (b) is a side view of the laminate guide 130 according to an embodiment of the present invention.

Referring to FIGS. 3A and 3B , the stacking material guide 130 includes at least one guide plate 131 supporting the outer surface of the stacking material 200 discharged from the torch unit 110 . ) and a guide movable part 133 interposed between the torch part 110 and the guide plate 131 to control the position of the guide plate 131 .

At this time, the guide plate 131 is preferably made of a pair so as to support both outer surfaces of the discharged laminated material 200, and the inner surface of the discharged laminated material 200 to improve the surface roughness It is preferably formed in a flat shape. In addition, the position and angle of the guide plate 131 may be controlled by the guide movable part 133 , which allows the guide plate 131 to operate according to the shape of the stacking material 200 according to a preset modeling. to do For example, when the stacked material 200 is discharged in a shape having a certain inclination, the guide plate 131 must be tilted together according to the inclination of the stacked material 200 to prevent flow and fall. In addition, the discharged lamination material 200 is heated by the heat source 113 , and it is preferable to cool it as quickly as possible to maintain its shape. To this end, the guide plate 131 may include a cooling member, which will be described later with reference to FIG. 7 .

In addition, the shape of the guide plate 131 is described as an embodiment of the plate, but is not limited to the plate, and the surface in contact with the discharged laminate 200 may be formed in a concave or convex curved surface, and a roller It can also be formed in a form.

The guide movable unit 133 includes a rotating unit 137 capable of rotating along the outer surface of the torch unit 110 in order to control at least one of a position and an angle of the guide plate 131 , and one end of the rotating unit 137 . ) and the other end is connected to the guide plate 131 and may include a joint part 135 for adjusting the height and angle of the guide plate 131 .

In order for the rotating unit 137 to rotate along the outer surface of the torch unit 110, the outer surface of the torch unit 110 may include a rail or groove so that the rotating unit 137 is fixed and rotated, and the rotating unit 137 ) is installed on the rail or the groove and can be rotated.

At this time, the joint part 135 may be composed of a combination of one or more joints and one or more rod parts, similar to the torch movable part 120 , and the joint may be formed to allow free movement on a three-dimensional basis, in more detail. Preferably, each joint is formed to enable yaw, pitch, and roll motion, so that the guide plate 131 can be freely controlled.

At this time, the rotating part 137 and the joint part 135 may operate based on the control signal of the controller 140 , and an example diagram of the use of the laminate guide 130 will be described later.

4 is an exemplary view of the use of the laminate guide 130 according to an embodiment of the present invention.

Referring to FIG. 4 , the laminate guide 130 according to an embodiment of the present invention supports the outer surface of the laminate 200 fluidly so that the shape of the laminate 200 discharged according to a preset modeling does not collapse. can do.

In more detail, as shown in FIG. 4( a ), the stacking material guide 130 may rotate on the outer surface of the torch unit 110 through the rotating unit 137 , and the movement direction of the torch unit 110 . And regardless of the angle, it may correspond to the shape of the discharged laminate 200 . For example, when the preset modeling is a cylinder open to the sky, and the torch unit 110 discharges the stacking material 200 in a state in which it is perpendicular to the ground, the torch unit 110 is perpendicular to the ground It will repeatedly exercise one layer at a time while moving in a circle while maintaining the . At this time, the stacking material guide 130 may rotate along the outer surface of the torch unit 110 through the rotating part 137 , and may support the outer surface according to the shape of the discharged stacking material 200 .

In addition, as shown in Figure 4 (b), the laminate guide 130 can adjust the height and angle of the guide plate 131 through the joint portion (135). Through this, the guide plate 131 may support the stacking material 200 at an angle corresponding to the stacking material 200 even if the stacked material 200 is stacked at an angle other than perpendicular to the ground.

5 is a view illustrating the use of the multi-layered material guide 130 according to an embodiment of the present invention.

One of the main purposes of the torch 100 for additive manufacturing according to an embodiment of the present invention is to support the outer surface of the ejected and laminated laminate 200, thereby preventing flow-down and improving the surface roughness.

To this end, one embodiment of the present invention includes a pair of guide plates 131 supporting both sides of the discharged laminate 200 , but the moving speed of the torch unit 110 and the heated laminate 200 . ) may not always be the same, so it may not be possible to achieve the desired purpose.

For example, when the cooling rate of the heated lamination material 200 is slower than the movement speed of the torch unit 110, the guide plate 131 moves before the lamination material 200 hardens, so that the flow and fall problem occurs. It may occur again, and the outer surface may flow down and the surface roughness may be deteriorated.

In order to solve this problem, the control unit 140 may adjust the moving speed of the torch unit 110 and the supply speed of the lamination material 200 based on the cooling rate of the lamination material 200 , but the type of the lamination material 200 . The cooling rate may be different depending on the model, and there may be inconvenience of having to change the setting every time, and when the width of the guide plate 131 is formed to be wide, there is a problem that precise processing including curves and the like becomes difficult. (The standard of the guide plate 131 will be described later with reference to FIG. 6 ).

Accordingly, the torch 100 for additive manufacturing according to an embodiment of the present invention may include multiple stacking guides 130 as shown in FIG. 5 .

Referring to FIG. 5 , the stacking material guide 130 according to an embodiment of the present invention includes two pairs of guide plates 131_1 and 131_2 supporting both sides of the discharged stacking material 200 and the torch unit 110 and It may include two pairs of guide movable parts 133_1 and 133_2 interposed between the guide plates 131_1 and 131_2 to control the positions of the guide plates 131_1 and 131_2.

At this time, the two pairs of guide plates (131_1, 131_2) are a pair of first guide plates (131_1) supporting both sides of the stacking material 200 immediately upon discharge and in the direction of movement of the torch unit 110 from the rear. A pair of second guide plates 131_2 supporting both sides of the discharged stacking material 200 may be included.

Through this, even when there is a difference between the moving speed of the torch unit 110 and the cooling rate of the stacking material 200 , it is possible to solve the problems of flow drop and deterioration of surface roughness through the second guide plate 131_2 .

At this time, the stacking material guide 130 has a first mode and a second guide in which the position is fixed so that the second guide plate 131_2 comes into contact with the first guide plate 131_1 based on the control signal of the controller 140 . In a second mode in which the plate 131_2 and the first guide plate 131_1 and the position are fixed at a predetermined distance, and the second guide plate 131_2 in the moving direction of the torch unit 110, the first guide plate ( 131_1) and at least one or more modes may be combined according to a user's selection among the third mode for repeating forward/backward movement at preset intervals to operate.

Torch 100 for additive manufacturing according to an embodiment of the present invention prevents the flow and fall of the ejected laminate 200 while allowing precise processing through the above-described multi-layered material guide 130 and improves surface roughness can do it

6 is an exemplary view showing the standard of the guide plate 131 according to an embodiment of the present invention.

As described above, if the width P_w of the guide plate 131 is too wide, it is difficult to form or process a complex shape such as a curve, and if it is too narrow, the flow and fall of the discharged laminate 200 cannot be prevented.

Therefore, the guide plate 131 according to an embodiment of the present invention is capable of precise molding or processing in a complicated shape, but corresponding to the width of the laminated material 200 in order to prevent the flow and fall of the discharged laminated material 200 . width can be formed. At this time, the laminate 200 may be discharged in a molten state by a heat source, and may have different widths in the discharged state. In this case, the width of the guide plate 131 may be determined based on the width of the discharged stacking material 200 .

In more detail, it is preferable that the width P_w of the guide plate 131 is the same as the width F_w of the discharged laminate 200 or has a width including a preset error range. For example, when the preset error range is 10% and the width F_w of the discharged laminate 200 is 10 mm, the width P_w of the guide plate 131 may be 9 mm to 11 mm.

Alternatively, when the lamination material 200 is a metal, the width of the guide plate 131 may be set from 1.1 times to 1.2 times the size of the molten pool based on the discharged lamination material 200 . At this time, in a special case to increase productivity, it may be made to have a width several times wider than the size of the molten pool of the laminate, such as in the case of weaving beads in welding.

In addition, in order for the guide plate 131 to smoothly support the laminated material 200 discharged in multiple layers, the height of the guide plate 131 is only the highest one layer of the laminated material 200 from which the guide plate 131 is discharged. It can be set to support. This is because the guide plate 131 cannot properly support when the laminate 200 is processed into a complicated shape having a curve or the like.

Therefore, it may be preferable that the height of the guide plate 131 is set to a height that can support only one to three layers of the discharged laminate 200 .

In addition, the guide plate 131 may be formed of a material having a high melting point and high thermal conductivity. The discharged laminate 200 has a high temperature by the heat source 113, and if the melting point of the guide plate 131 is low, it can be melted together by the discharged laminate 200, and if the heat conduction is low, it is discharged. The laminated material 200 cannot be cooled quickly, and problems such as flow fall cannot be properly solved.

Accordingly, the guide plate 131 according to an embodiment of the present invention is formed of a material having a high melting point and thermal conductivity, and is preferably formed of at least one of copper, carbon composite, carbon tube, graphite, and graphene. . At this time, copper is suitable for use in the guide plate 131 as a material having a moderately high melting point and high thermal conductivity, and graphene does not have high thermal conductivity, but has a very high melting point and may be applied depending on circumstances.

7 is an exemplary view of a cooling member applied to the guide plate 131 according to an embodiment of the present invention.

Referring to FIG. 7 , the guide plate 131 may include a cooling member for cooling the discharged stacking material 200 .

Since the discharged laminate 200 is in a molten state by the heat source 113 , if it is not cooled, there is a problem that it may still flow and fall after the guide plate 131 passes. Therefore, it is necessary to rapidly cool the heat of the laminated material 200 discharged while the guide plate 131 is supporting it to the outside.

To this end, the guide plate 131 according to an embodiment of the present invention radiates the heat of the laminate 200 to the outside on the outer surface not in contact with the laminate 200 as shown in FIG. 7(a). It may include one or more heat sinks 150 that can do this.

In this case, the heat sink 150 may be formed of the same material as the guide plate 131 , or may be formed of a material having high thermal conductivity and a different material.

In addition, the guide plate 131 may further include a coolant hose 161 positioned on the outer surface or inside of the guide plate 131 and a pump 160 capable of introducing coolant through both ends of the coolant hose 161 . have. Preferably, the coolant hose 161 may be installed inside the guide plate 131 . At this time, the heat of the laminated material 200 transferred to the guide plate 131 by circulation of the cooling water may be discharged to the outside.

Embodiments of the present invention disclosed in the present specification and drawings are merely provided for specific examples in order to easily explain the technical contents of the present invention and help the understanding of the present invention, and are not intended to limit the scope of the present invention. That is, it will be apparent to those of ordinary skill in the art to which the present invention pertains that other modifications are possible based on the technical spirit of the present invention. In addition, each of the above embodiments may be operated in combination with each other as needed.

In addition, the operating method of the controller 140 according to the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium.

As such, various embodiments of the present invention may be embodied as computer readable code on a computer readable recording medium in a particular aspect. A computer readable recording medium is any data storage device capable of storing data that can be read by a computer system. Examples of computer readable recording media include read only memory (ROM), random access memory (RAM), and compact disk-read only memory (CD-ROM). ), magnetic tapes, floppy disks, optical data storage devices, and carrier waves (such as data transmission over the Internet). The computer readable recording medium may also be distributed over network-connected computer systems, so that the computer readable code is stored and executed in a distributed manner. In addition, functional programs, codes, and code segments for achieving various embodiments of the present invention may be easily interpreted by programmers skilled in the field to which the present invention is applied.

In addition, it will be appreciated that the apparatus and method according to various embodiments of the present invention can be realized in the form of hardware, software, or a combination of hardware and software. Such software may contain, for example, a volatile or non-volatile storage device, such as a ROM, or a memory, such as, for example, RAM, a memory chip, device or integrated circuit, whether erasable or rewritable, or For example, the storage medium may be stored in an optically or magnetically recordable storage medium such as a compact disk (CD), DVD, magnetic disk or magnetic tape, and at the same time, a machine (eg, computer) readable storage medium. The method according to various embodiments of the present invention may be implemented by a computer or portable terminal including a control module and a memory, and the memory is configured to store a program or programs including instructions implementing embodiments of the present invention. It can be seen that this is an example of a machine-readable storage medium suitable for

Accordingly, the present invention includes a program including code for implementing the apparatus or method described in the claims of the present specification, and a machine (computer, etc.) readable storage medium storing such a program. Further, such a program may be transmitted electronically over any medium, such as a communication signal transmitted over a wired or wireless connection, and the present invention suitably includes the equivalent thereof.

The embodiments of the present invention disclosed in the present specification and drawings are merely provided for specific examples to easily explain the technical contents of the present invention and help the understanding of the present invention, and are not intended to limit the scope of the present invention. In addition, the embodiments according to the present invention described above are merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent ranges of embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be defined by the following claims.

100: torch for additive manufacturing 110: torch part
111: lamination material supply unit 113: heat source unit
115: torch nozzle 117: protective gas supply part
120: torch moving part 130: laminated material guide
131: guide plate 133: guide movable part
135: joint 137: rotating part
140: control unit 150: heat sink
160: pump 161: coolant hose
200: laminate

Claims (10)

a torch unit for discharging the laminated material heated by the heat source through the torch nozzle;
a torch moving part for controlling a discharge direction of the torch nozzle so that the stacking material can be stacked according to a preset modeling;
a stacking material guide to prevent flow and fall of the discharged stacking material; and
a control unit for controlling the torch unit, the torch moving unit, and the stacking material guide; including,
The laminate guide includes:
at least one guide plate for supporting an outer surface of the stacked material discharged from the torch unit; and
a guide movable part interposed between the torch part and the guide plate to control a position of the guide plate; including,
The guide plate is characterized in that it is formed of at least one of a carbon composite, a carbon tube, graphite, and graphene,
Torch for additive manufacturing. The method according to claim 1,
The torch unit,
a lamination material supply unit for supplying an external lamination material to the inside; and
a heat source for heating the laminated material supplied through the laminated material supply unit; characterized in that it comprises,
Torch for additive manufacturing. 3. The method according to claim 2,
The torch unit,
a torch nozzle for discharging the laminated material heated by the heat source; and
a protective gas supply unit for discharging the protective gas in a direction in which the stacking material is discharged; characterized in that it comprises,
Torch for additive manufacturing. delete The method according to claim 1,
The guide movable part,
a rotating part capable of rotating along the outer surface of the torch part; and
a joint part having one end connected to the rotating part and the other end connected to the guide plate to adjust the height and angle of the guide plate; characterized in that it comprises,
Torch for additive manufacturing. The method according to claim 1,
The guide plate is
characterized in that it is formed with a width corresponding to the width of the laminate,
Torch for additive manufacturing. The method according to claim 1,
The guide plate is characterized in that formed of copper,
Torch for additive manufacturing. delete The method according to claim 1,
The guide plate is
a coolant hose positioned on the outer surface or the inside of the guide plate; and
a pump for inputting and discharging cooling water through both ends of the cooling water hose; Torch for additive manufacturing comprising a. In the method of additive manufacturing by discharging a laminate according to a preset modeling,
controlling, through the control unit, the torch moving unit to control the discharge direction of the torch nozzle according to a preset modeling;
controlling the position of the guide plate to support the outer surface of the discharged laminate through the control unit;
calculating, through the control unit, the moving speed of the torch moving part based on the amount of the stacked material discharged, the cooling rate of the stacked material, and the width of the guide plate; and
controlling the torch nozzle, the torch moving part, and the guide plate through the control unit to discharge the laminated material according to the modeling while maintaining the moving speed; including,
The guide plate comprises:
① Support the outer surface of the laminate discharged from the torch nozzle,
② It is characterized in that it is formed of at least one of carbon composite, carbon tube, graphite, and graphene,
An additive manufacturing method in which a guide movable part is interposed between the torch nozzle and the guide plate to control the position of the guide plate.

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