KR20230102483A - Apparatus and method for hot forging - Google Patents

Abstract

The present invention relates to a hot forging apparatus, comprising: an upper mold having an upper forming region formed therein to press a material; a lower mold having a lower mold area formed therein and corresponding to the upper mold; and a first take-out part formed on at least a part of the upper mold or the lower mold and having one surface inclined with respect to the pressing surface of the upper mold or the lower mold, wherein the first take-out part comprises the upper mold and the lower mold. In the forging step of the material by, it is disposed outside the upper molding area and the lower molding area, and in the taking out step of the material, it is driven to enter the upper molding area or the lower molding area, so that the material is It may be pushed and taken out from the upper mold or the lower mold by the first take-out part.

Description

Apparatus and method for hot forging}

The present invention relates to a hot forging apparatus and a forging method, and more particularly, to a hot forging apparatus and a forging method that are easy to take out.

In general, a forging mold inserts a steel material between an upper mold and a lower mold equipped with a die, lowers the upper mold device, and deforms the steel material by a press action to produce a molding.

Forging molds are widely used in various technical fields because they can easily produce desired complex shapes by using the plasticity and fluidity of the material. produce

In particular, the separator coupled to the fuel cell forms a channel through which air or fuel can move through etching, machining, or stamping of a flat plate. At this time, the separator can be manufactured through a forging mold.

On the other hand, the separation plate has a problem in that it is difficult to separate the molded article, that is, the separation plate, from the mold surface of the mold depending on the complicated shape of the flow path or the material, and the separation plate is separated from the mold through the eject pin.

However, there are cases where a molded article deformed at high temperature or high temperature is attached to the molding surface and cannot be taken out with the eject pin, and the eject pin is destroyed or deformed.

The present invention is intended to solve the above problems, and molded products are easily taken out from the mold, and materials are prevented from being deformed during take-out to produce good quality products, high-temperature, high-temperature forging processing, complex shaped passages, etc. It is an object of the present invention to provide a hot forging device and a forging method that can be taken out even in the process of increasing the production rate. However, these tasks are exemplary, and the scope of the present invention is not limited thereby.

Hot forging apparatus according to the spirit of the present invention for solving the above problems, the upper mold is formed in the upper molding area to press the material; a lower mold having a lower mold area formed therein and corresponding to the upper mold; and a first take-out part formed on at least a part of the upper mold or the lower mold and having one surface inclined with respect to the pressing surface of the upper mold or the lower mold, wherein the first take-out part comprises the upper mold and the lower mold. In the forging step of the material by, it is disposed outside the upper molding area and the lower molding area, and in the taking out step of the material, it is driven to enter the upper molding area or the lower molding area, so that the material is It may be pushed and taken out from the upper mold or the lower mold by the first take-out part.

Further, according to the present invention, the first take-out portion may include a tip portion formed inside the upper molding area or the lower molding area; a rear end portion formed outside the upper molding area or the lower molding area and interlocked with the rear take-out driving unit; a material contact portion connecting the front end and the rear end and forming a surface in contact with the material; and a mold contact portion connecting the front end portion and the rear end portion and forming a surface in contact with the upper mold or the lower mold, wherein at least one of the material contact portion and the mold contact portion includes an inclined portion, so that the thickness of the front end portion is The thickness of the rear end may be formed larger than that.

In addition, according to the present invention, the first take-out part is formed to be coupled to at least a part of the lower mold, and is coupled to at least a part of the upper mold in a direction perpendicular to the direction of the first take-out part coupled to the lower mold, It may further include a second take-out part formed such that one surface is inclined with respect to the pressing surface of the upper mold.

Also, according to the present invention, two or more first take-out units may be formed on both sides of the upper molding area or the lower molding area.

Also, according to the present invention, the first take-out portion may be formed in all directions based on the upper molding area or the lower molding area.

Also, according to the present invention, the first lead-out portion may have a width of 20% to 150% of the upper molding area or the lower molding area where the first lead-out portion is formed.

In addition, according to the present invention, the upper molding area of the fuel cell separator plate is formed with a flow path forming part, the lower molding area of the separator plate is formed with a lower flow path molding part, and the upper mold and the lower mold are coupled to each other. Flow paths corresponding to the upper and lower flow passage forming parts may be formed on the upper and lower surfaces of the material, respectively.

Further, according to the present invention, the first take-out part may be formed in a direction perpendicular to the direction of the upper flow passage forming part or the lower flow passage forming part to which the first take out part is coupled.

In addition, according to the present invention, the first take-out portion may be formed in a direction horizontal to the direction of the upper flow passage forming part or the lower flow passage forming portion to which the first take out portion is coupled.

In addition, according to the present invention, an eject pin formed inside the upper molding area or the lower molding area to hit and push the material; may further include.

In addition, according to the present invention, when the material is taken out, the first take-out part and the eject pin may be simultaneously driven.

Further, according to the present invention, a sensing unit for sensing the material coupled to the upper molding area or the lower molding area may be further included.

A hot forging method according to the spirit of the present invention for solving the above problems includes a preparation step of transferring and aligning a material to an upper mold having an upper molding area formed therein and a lower mold having a lower molding area formed therein; Pressing step of pressurizing the material; and a first take-out portion formed with an inclined portion having one surface inclined with respect to the pressing surface of the upper mold or the lower mold enters toward the center of the upper molding area or the lower molding area, so that the pressed material is transferred to the upper mold or the lower mold. It may include; a take-out step of being pushed and taken out from.

Further, according to the present invention, in the taking out step, when the upper mold and the lower mold are released and the material is coupled to the lower molding area, the lower mold takes out the material through the first ejection part formed in the lower mold. sub driving step; and when the upper mold and the lower mold are released and the material is coupled to the upper molding area, it is formed by being coupled to at least a part of the upper mold in a direction perpendicular to a direction of the first extraction part coupled to the lower mold, and wherein the upper mold is formed. An upper take-out unit driving step of taking out the material through a second take-out unit whose one side is inclined with respect to the pressurized surface of the upper take-out unit; and optionally performing the lower take-out unit driving step and the upper take-out unit driving step. can

In addition, according to the present invention, in the pressing step, the upper surface flow path forming part of the separator for fuel cell is formed in the upper molding area, the lower surface flow path forming part of the separator is formed in the lower molding area, and the upper surface and A flow path corresponding to the upper flow path forming part and the lower flow path forming part may be respectively formed on the lower surface.

According to some embodiments of the present invention made as described above, it is easy to take out the molded article from the mold, and accordingly, the operator's safety is ensured because the worker does not take out the molded article, and the deformation of the material is prevented during the takeout. It can have the effect of increasing the production rate by producing quality products.

In addition, it can be taken out even in high-temperature, high-temperature forging processing or processing of complex shaped passages, so that it can be applied to various forged products, and has an effect of stabilizing and improving quality. Of course, the scope of the present invention is not limited by these effects.

1 is a perspective view showing a hot forging apparatus according to an embodiment of the present invention.
2 is a perspective view illustrating a first take-out part according to an embodiment of the present invention.
3 is a perspective view showing a hot forging apparatus according to other embodiments of the present invention.
4 to 7 are perspective views showing a lower mold according to other embodiments of the present invention.
8 to 9 are flow charts showing a hot forging method according to various embodiments of the present invention.
10 is a diagram showing a preparation step according to an embodiment of the present invention.
11 is a view showing a pressing step according to an embodiment of the present invention.
12 is a diagram showing a release step according to an embodiment of the present invention.
13 is a diagram illustrating an extraction step according to an embodiment of the present invention.
14 is a diagram showing a release step according to an embodiment of the present invention.
15 is a diagram illustrating an extraction step according to an embodiment of the present invention.

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

The embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art, and the following examples may be modified in many different forms, and the scope of the present invention is as follows It is not limited to the examples. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the spirit of the invention to those skilled in the art. In addition, the thickness or size of each layer in the drawings is exaggerated for convenience and clarity of explanation.

Terms used in this specification are used to describe specific embodiments and are not intended to limit the present invention. As used herein, the singular form may include the plural form unless the context clearly indicates otherwise. Also, when used herein, "comprise" and/or "comprising" specifies the presence of the recited shapes, numbers, steps, operations, elements, elements, and/or groups thereof. and does not exclude the presence or addition of one or more other shapes, numbers, operations, elements, elements and/or groups.

Hereinafter, embodiments of the present invention will be described with reference to drawings schematically showing ideal embodiments of the present invention. In the drawings, variations of the depicted shape may be expected, depending on, for example, manufacturing techniques and/or tolerances. Therefore, embodiments of the inventive concept should not be construed as being limited to the specific shape of the region shown in this specification, but should include, for example, a change in shape caused by manufacturing.

Hereinafter, a material processing method according to various embodiments of the present invention will be described in detail with reference to the drawings.

1 is a perspective view showing a hot forging apparatus according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a first take-out part according to an embodiment of the present invention.

First, as shown in FIG. 1 , a hot forging apparatus according to an embodiment of the present invention may largely include an upper mold 100, a lower mold 200, and a first take-out part 300.

The upper mold 100 is an upper mold formed on the upper part of the forging mold, and has an upper molding area 110 formed therein, and can press the material using a high-capacity press. The material in contact with the upper mold 100 may be plastically deformed into a shape corresponding to the upper molding area 110 .

The lower mold 200 is a lower mold formed at the lower part of the forging mold, and has a lower molding area 210 formed therein, and is formed to correspond to the upper mold 100 so as to be molded with the upper mold 100.

At this time, a flow path forming part for forming a flow path in the material may be formed in the upper molding area 110 and the lower molding area 210 . The flow path forming part may be formed as a rib having a complex shape for forming a flow path of the separator, and the flow path forming part formed in the upper molding area 110 and the lower molding area 210 may be formed in different directions.

For example, the flow path forming part formed in the upper molding area 110 may be formed in front and rear directions as shown in FIG. 1, and the flow path forming part formed in the lower molding area 210 may be formed in left and right directions.

The first take-out part 300 may be formed on at least a portion of the upper mold 100 or the lower mold 200, and one surface may be inclined relative to the pressing surface of the upper mold 100 or the lower mold 200.

For example, as shown in FIG. 1 , the first take-out part 300 may be formed on both sides of the lower mold 200 .

The first take-out part 300 is formed on the lower mold 200 and is formed to be included in a part of the lower molding area 210, which is an area where the material is pressed and molded, so that at least a portion of the material is pressed when the material is pressed. can come into contact with Alternatively, although the first take-out part 300 does not come into contact with the material, at least a portion of the first take-out part 300 and the material may come into contact with each other while the material is pressurized and deformed.

Also, although not shown, the first take-out part 300 may be formed on the upper mold 100.

The first take-out part 300 may include a front end part 310, a rear end part 320, a material contact part 330, and a mold contact part 340.

The front end 310 is the front end of the first take-out part 300 and may be formed inside the upper molding area 110 or the lower molding area 210, and the rear end 320 is the upper molding area 110 or the upper molding area 110 or the inside of the lower molding area 210. It is formed outside the lower molding area 210 and can be interlocked with the take-out driver at the rear.

For example, as shown in FIG. 2, the first take-out part 300 is formed in the lower mold 200, and the front end 310 of the first take-out part 300 can be formed in the lower molding area 210, , The rear end 320 may be formed outside the lower molding area 210 .

At this time, the rear end 320 may be interlocked with the take-out driver, and although not shown, the take-out driver may have a structure that pushes the first take-out part 300 toward the lower molding area 210 . For example, the take-out driver may press the rear end 320 of the first take-out part 300 by using a motor, a valve, a link, an electromagnet, a hydraulic type, a pneumatic type, or the like. Accordingly, the first take-out part 300 can be moved back and forth.

The material contact part 330 connects the front end 310 and the rear end 320, and may form a surface in contact with the material, and the mold contact part 340 connects the front end 310 and the rear end 320, , A surface in contact with the upper mold 100 or the lower mold 200 may be formed. At this time, at least one of the material contact portion 330 and the mold contact portion 340 includes an inclined portion, and the thickness of the rear end portion 320 may be greater than that of the front end portion 310 .

For example, the first take-out part 300 is formed on the lower mold 200, the upper surface of the first take-out part 300 is formed as the material contact part 330, and the lower surface of the first take-out part 300 is the mold contact part ( 340). in other words. A part of the material is in contact with a part of the material contact part 330, which is the upper surface of the first take-out part 300, and the mold contact part 340, which is the lower surface of the first take-out part 300, is coupled to the inside of the lower mold 200. and can be contacted.

The first take-out part 300 pushes the material from the lower mold 200 while the front end part 310 enters between the material and the lower mold 200 so that the thickness of the front end part 310 becomes thicker in the direction of the rear end part 320. can be formed

Specifically, the material contact portion 330 that contacts the material and pushes the material is formed parallel to the lower surface of the material, so that when the material is pressed, the lower surface of the material joined to the first take-out part 300 is parallel. can be formed.

The mold contact portion 340 has an inclined portion inclined in the direction of the lower mold 200 from the front end 310 to the rear end 320, so that when the first take-out part 300 enters the lower molding area 210, It can move upward along the inclined portion.

Thus, the first take-out part 300 is formed to be able to enter toward the center of the lower molding area 210, so that the pressed material can be pushed out of the lower mold 200 and taken out.

Although not shown, an inclined portion is formed at the material contact portion 310, and when the first extraction portion 300 enters the lower molding area 210, the material may be extracted along the inclined portion.

In this case, the pressurized material may include a plate-type separator coupled to the fuel cell. For example, the upper molding area 110 and the lower molding area 210 are molding parts for forming a fuel flow path and an air flow path formed on both sides of the separation plate. At this time, the upper molding area 110 and the lower molding area 210 may be formed in a complicated flow path shape, and the starting point and the end point of each flow path forming part in the upper molding area 110 and the lower molding area 210 The connecting direction may be the flow direction of the upper molding area 110 and the lower molding area 210 .

3 is a perspective view showing a hot forging apparatus according to other embodiments of the present invention.

As shown in FIG. 3 , the hot forging apparatus according to embodiments of the present invention may include an upper mold 100, a lower mold 200, a first take-out part 300, and a second take-out part 400. The upper mold 100 and the lower mold 200 are the same as those described above.

At this time, as shown in FIG. 3, the first take-out part 300 is formed to be coupled to at least a part of the lower mold 200, and the second take-out part 400 is formed to be coupled to at least a part of the upper mold 100. It can be.

The second take-out part 400 may have the same configuration as the first take-out part 300 and may be formed in a different location and direction.

Specifically, the second take-out part 400 is formed by being coupled to at least a part of the upper mold 100 in a direction perpendicular to the direction of the first take-out part 300 coupled to the lower mold 200, and pressing the upper mold 100 One surface may be formed to be inclined with respect to the surface.

For example, as shown in FIG. 3 , the first take-out part 300 is formed on the lower mold 200 and may be formed on both sides of the lower molding area 210 .

The second take-out part 400 is formed on the upper mold 100 and may be formed on both sides of the upper molding area 110 . At this time, the second take-out part 400 is formed in a different direction from the first take-out part 300, so when the upper mold 100 and the lower mold 200 are combined, the first take-out part 300 and the second take-out part 300 are viewed as a whole. 2 take-out parts 400 may be formed on all sides of the mold in different directions.

4 to 7 are perspective views showing a lower mold according to other embodiments of the present invention.

Two or more first take-out parts 300 may be formed on both sides of the upper molding area 110 or the lower molding area 210, respectively.

Specifically, as shown in FIG. 4 , the first take-out part 300 includes a 1-1 take-out part 300-1, a 1-2 take-out part 300-2, and a 1-3 take-out part ( 300-3) and the 1-4th take-out part 300-4.

The 1-1 take-out part 300-1 and the 1-2 take-out part 300-2 may be coupled to one side of the lower molding area 210 at a predetermined distance, and the 1-3 take-out part 300 -3) and the 1-4 take-out parts 300-4 may be coupled to the other side of the lower molding area 210 at a predetermined distance apart.

At this time, the 1-1 take-out part 300-1, the 1-2 take-out part 300-2, the 1-3 take-out part 300-3, and the 1-4 take-out part 300-4 It can be driven simultaneously to take out the material, the 1-1st take-out part 300-1 and the 1-2 take-out part 300-2 are primarily driven, and after a predetermined time, the 1-3 take-out part ( 300-3) and the 1-4 take-out units 300-4 may be driven. Alternatively, the 1-1 take-out part 300-1 and the 1-4 take-out part 300-4 formed diagonally to the 1-1 take-out part 300-1 are primarily driven, and after a predetermined time The 1-2 take-out part 300-2 and the 1-3 take-out part 300-3 formed in the diagonal direction from the 1-2 take-out part 300-2 are driven to prevent bending of the material. can do.

Although not shown, the 1-1 take-out part 300-1, the 1-2 take-out part 300-2, the 1-3 take-out part 300-3, and the 1-4 take-out part 300-4 ) may be formed on the upper mold 100.

As shown in FIG. 5 , the first take-out part 300 may be formed in all directions based on the upper molding area 110 or the lower molding area 210 .

Specifically, as shown in FIG. 5 , the first take-out part 300 includes a 1-5 take-out part 300-5, a 1-6 take-out part 300-6, and a 1-7 take-out part ( 300-7) and 1-8 take-out parts 300-8, and each take-out part may be coupled to all sides of the lower molding area 210.

At this time, the 1-5th take-out part 300-5, the 1-6th take-out part 300-6, the 1-7th take-out part 300-7, and the 1-8th take-out part 300-8 The 1-5 take-out parts 300-5 and the 1-7 take-out parts 300-7 formed in the direction corresponding to the 1-5 take-out parts 300-5, which can be driven simultaneously to take out the material. is primarily driven, and after a predetermined time, the 1-6th take-out part 300-6 and the 1-8th take-out part 300-8 formed in the direction corresponding to the 1-6 take-out part 300-6 can be driven. Alternatively, the 1-5th take-out part 300-5, the 1-6th take-out part 300-6, the 1-7th take-out part 300-7, and the 1-8th take-out part 300-8 Each may be driven at a predetermined cycle.

Although not shown, the 1-5th take-out part 300-5, the 1-6th take-out part 300-6, the 1-7th take-out part 300-7, and the 1-8th take-out part 300-8 ) may be formed on the upper mold 100.

The width of the first take-out part 300 may be formed to be 20% to 150% of the upper molding area 110 or the lower molding area 210 where the first take-out part 300 is formed.

As shown in FIG. 6A , the width d1 of the first take-out part 300 may be smaller than the width d2 of the lower molding area 210 . At this time, the width d1 of the first take-out part 300 should be driven at or above a certain area of the width d2 of the lower molding area 210 so that only a portion of the material is not taken out. Accordingly, the width d1 of the first take-out portion 300 may be formed to be 20% or more of the width d2 of the lower molding area 210 .

In addition, a plurality of first lead-out portions 300 may be formed so that the sum of the widths of each lead-out portion is 20% to 150%. For example, the first take-out parts 300 formed of 10% of the lower molding area 210 are formed on both sides of the edge of one side of the lower molding area 210, and the width of the plurality of first take-out parts 300 is lower than the lower molding area 210. It may be 20% of the width d2 of the molding area 210 .

The width d1 of the first take-out part 300 may be formed to correspond to the width of the area where the flow path forming part L in the lower molding area 210 is formed. Thus, the first take-out part 300 can be driven to take it out from the region of the flow path shaping part L where the material is directly rubbed and jammed.

Alternatively, as shown in FIG. 6B , the width d1 of the first take-out part 300 may be greater than the width d2 of the lower molding area 210 . At this time, the width d1 of the first take-out part 300 should be driven in an area larger than the width d2 of the lower molding area 210 so that the material is taken out so as to cover the entire side of the material. Accordingly, the width d1 of the first take-out part 300 may be formed to be greater than the width d2 of the lower molding region 210 and may be formed to a maximum of 150% or less.

Although not shown, the same can be applied when the first take-out part 300 is formed on the upper mold 100.

The first take-out part 300 may be formed in a direction perpendicular to the direction of the flow path forming part L formed in the upper molding area 310 or the lower molding area 210 to which the first take-out part 300 is coupled. .

Specifically, as shown in FIG. 7A, the first take-out part 300 is formed in the lower molding area 210, and the lower molding area 210 includes the flow path forming part L formed in the vertical direction on the drawing. can do. At this time, the first take-out part 300 may be formed in the left and right directions on the drawing, which are perpendicular to the flow path forming part (L).

Therefore, the coupling direction of the first take-out part 300 is formed in the same direction as the flow path forming part L of the lower molding area 210 and the flow path forming part of the upper molding area 110 formed in the vertical direction to prevent distortion. can do.

Alternatively, the first take-out part 300 may be formed in a direction horizontal to the direction of the flow path forming part L formed in the upper molding area 310 or the lower molding area 210 to which the first take-out part 300 is coupled. can

Specifically, as shown in FIG. 7B , the first take-out part 300 may be formed in a vertical direction on the drawing, which is a horizontal direction with the flow path forming part L formed in the vertical direction on the drawing. Accordingly, since the coupling direction of the first take-out part 300 is formed in the same direction as that of the flow path forming part L of the lower molding area 210, distortion can be prevented.

Also, although not shown, the same may be applied when the first take-out part 300 is formed on the upper mold 100.

As shown in FIG. 3, the hot forging apparatus according to another embodiment of the present invention may further include an eject pin 500.

The eject pin 500 may be formed inside the upper molding area 110 or the lower molding area 210 to hit and push the material.

The eject pin 500 is a device that is formed inside the lower molding area 210 and is driven so that at least a part of it protrudes from the inside of the lower mold 200 to the lower molding area 210 .

The material coupled to the lower molding area 210 can be taken out by hitting or pushing it from the inside of the lower mold 200 . At this time, it is possible to take out the material by driving it simultaneously with the first take-out part 300 formed in the lower molding area 210 to minimize deformation of the material. In addition, the eject pin is formed on the upper mold 100 and driven simultaneously with the second take-out part 400, so that the same effect can be generated.

In addition, the eject pin 500 may be driven after the first take-out part 300 formed in the lower molding area 210 is driven.

As shown in FIG. 3 , the hot forging apparatus according to another embodiment of the present invention may further include a sensing unit 600 .

The sensing unit 600 may detect a material coupled to the upper molding area 110 or the lower molding area 210 .

The sensing unit 600 is coupled to the upper molding area 110 or the lower molding area 210 to measure the distance from the upper molding area 110 or the lower molding area 210 to the material, thereby determining the location of the pressurized material. can sense.

Accordingly, a state in which the material is coupled to the upper mold 100 or the lower mold 200 may be determined by comparing the data sensed by the controller with initial data or by comparing the sensed data with previously input data.

Although not shown, a plurality of sensing units 600 may be formed around the upper molding area 110 or the lower molding area 210 to sense an extracted portion and a non-extracted portion.

When the control unit determines that the material is coupled to the upper mold 100, the second take-out unit 400 coupled to the upper mold 100 is driven, and when it is determined that the material is coupled to the lower mold 200, the lower mold ( 200) can be controlled to drive the first take-out unit 300. Accordingly, the production rate can be increased by controlling the take-out part according to the bonding position of the material in the mold that presses the flow path of the material to be formed on both sides.

In addition, as shown in FIG. 3 , the hot forging apparatus according to another embodiment of the present invention may include both an eject pin 500 and a sensing unit 600 .

The eject pin 500 formed in the lower molding area 210 is primarily driven to take out the material, and the sensing unit 600 may sense the position of the material.

At this time, when it is determined that the material has not been taken out by the controller through the data sensed by the sensing unit 600, the first take-out unit 300 can be driven to take out the material, and the plurality of sensing units 600 ) is formed and the material can be taken out by driving the first take-out unit 300 only in a region where the material is not taken out.

In addition, it may be driven by including only one of the eject pin 500 and the sensing unit 600 .

8 and 9 are flowcharts showing a hot forging method according to various embodiments of the present invention, and FIGS. 10 to 15 are a preparation step (S100), a pressurization step (S200), a lower take-out driving step (S310), and It is a diagram showing the driving of the upper take-out unit driving step (S320).

As shown in Figure 8, the hot forging method according to an embodiment of the present invention may include a preparation step (S100), a pressing step (S200) and a take-out step (S300).

As shown in FIG. 10, the preparation step (S100) transfers and aligns the material S to the upper mold 100 having an upper molding region 110 formed therein and the lower mold 200 having a lower molding region 210 formed therein. It is a step to

The preparation step (S100) may include a material heating step of heating the material (S) before or after transferring the material (S) to the mold.

The preparation step ( S100 ) may include a mold heating step of heating the mold.

As shown in FIG. 11 , the pressing step ( S200 ) is a step of pressurizing and plastically deforming the material (S) between the upper molding area 110 and the lower molding area 210 .

As shown in FIG. 12 , the taking out step (S300) may include a releasing step in which the upper mold 100 and the lower mold 200 are separated, and the material S may be taken out after the releasing step.

In the take-out step (S300), the first take-out part 300, in which an inclined portion having one side inclined with respect to the pressing surface of the upper mold 100 or the lower mold 200 is formed, is formed in the upper molding area 110 or the lower molding area 210. It is a step in which the pressurized material S is pushed out of the upper mold 100 or the lower mold 200 by entering toward the center of the mold.

For example, as shown in FIG. 13, the first take-out part 300 coupled to the lower mold 200 is driven in the direction of the lower molding area 110 to release the material S coupled to the lower molding area 110 to the lower mold. It can be taken out from (200).

As shown in FIG. 9, the hot forging method according to another embodiment of the present invention includes a preparation step (S100), a pressing step (S200), a lower take-out driving step (S310) and an upper take-out driving step (S320). can include

A preparation step (S100) of transferring and aligning the material (S) to the upper mold (100) having an upper molding region (110) formed therein and the lower mold (200) having a lower molding region (210) formed therein, and pressurizing the material (S). After the pressing step (S200), a taking out step (S300) of taking out the material (S) may be performed.

The take-out step (S300) may be selected as a lower take-out driving step (S310) or an upper take-out part driving step (S320) according to the position of the material (S) when the upper mold 100 and the lower mold 200 are released.

Specifically, as shown in FIG. 12, the second take-out part 400 is formed in the upper mold 100, the first take-out part 300 is formed in the lower mold 200, and the upper mold 100 and the lower mold ( 200) may include a lower take-out driving step (S310) if the material (S) is coupled to the lower molding area 210 during release (A).

The lower take-out unit driving step (S310) is a step of taking out the material (S) through the first take-out part 300 formed on the lower mold 200, and the first take-out part 300 coupled to the lower mold 200 is The material (S) coupled to the lower molding area 210 may be taken out from the lower mold 200 by driving in the direction of the molding area 210 .

Specifically, as shown in FIG. 14, when the upper mold 100 and the lower mold 200 are released, when the material (S) is coupled to the upper molding area 110 (B), the upper take-out unit driving step (S320) ) may be included.

The upper take-out unit driving step (S320) is a step of taking out the material S through the second take-out part 400 formed on the upper mold 100, and the second take-out part 400 coupled to the upper mold 100 is at the upper part. The material S coupled to the upper molding area 110 may be taken out from the upper mold 100 by driving in the direction of the molding area 110 .

At this time, the sensing unit formed on the upper mold 100 or the lower mold 200 senses the material (S) and determines the position of the material (S) through the data sensed by the controller to drive the lower take-out unit (S310) and the upper mold (S310). The take-out unit driving step (S320) may be selectively performed.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Therefore, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims.

L: flow path forming part
S: material
100: hieroglyph
110: upper molding area
200: lower type
210: lower molding area
300: first take-out part
310: distal end
320: rear end
330: material contact
340: mold contact
400: second take-out part
500: eject pin
600: sensing unit

Claims (15)

An upper mold with an upper molding area formed therein to press the material;
a lower mold having a lower mold area formed therein and corresponding to the upper mold; and
a first take-out part formed on at least a part of the upper mold or the lower mold and having one surface inclined with respect to the pressing surface of the upper mold or the lower mold;
including,
The first take-out part,
In the forging step of the material by the upper mold and the lower mold, it is disposed outside the upper molding area and the lower molding area,
In the step of taking out the material, the hot forging device is driven to enter toward the upper molding region or the lower molding region, and the material is pushed and taken out by the first take-out part from the upper mold or the lower mold. According to claim 1,
The first take-out part,
a tip portion formed inside the upper molding area or the lower molding area;
a rear end portion formed outside the upper molding area or the lower molding area and interlocked with the rear take-out driving unit;
a material contact portion connecting the front end and the rear end and forming a surface in contact with the material; and
a mold contact portion connecting the front end and the rear end and forming a surface contacting the upper mold or the lower mold;
including,
At least one of the material contact portion and the mold contact portion includes an inclined portion, wherein the thickness of the rear end portion is greater than the thickness of the front end portion, hot forging apparatus. According to claim 1,
The first take-out part,
It is formed to be coupled to at least a part of the lower mold,
a second take-out part coupled to at least a portion of the upper mold in a direction perpendicular to the direction of the first take-out part coupled to the lower mold, and having one surface inclined with respect to the pressing surface of the upper mold;
Further comprising a hot forging device. According to claim 1,
The first take-out part,
Two or more hot forging devices are formed on each side of the upper forming region or the lower forming region based on each other. According to claim 1,
The first take-out part,
Formed in all directions based on the upper forming region or the lower forming region, hot forging apparatus. According to claim 1,
The first take-out part,
The hot forging apparatus, wherein the length of the width is formed from 20% to 150% of the upper forming region or the lower forming region in which the first take-out portion is formed. According to claim 1,
In the upper forming region, an upper flow passage forming portion of a separator for a fuel cell is formed,
In the lower molding area, a flow path forming part is formed on the lower surface of the separation plate,
The upper mold and the lower mold are coupled to form a flow path corresponding to the upper surface flow path forming part and the lower surface flow path forming part on the upper and lower surfaces of the material, respectively. According to claim 7,
The first take-out part,
The hot forging apparatus formed in a direction perpendicular to the direction of the upper surface flow path forming part or the lower surface flow path forming part to which the first take-out part is coupled. According to claim 7,
The first take-out part,
The hot forging apparatus formed in the direction and the horizontal direction of the upper surface flow path forming part or the lower surface flow path forming part to which the first take-out part is coupled. According to claim 1,
an eject pin formed inside the upper molding area or the lower molding area to hit and push the material;
Further comprising a hot forging device. According to claim 10,
When the material is taken out, the first take-out part and the eject pin are simultaneously driven, hot forging apparatus. According to claim 1,
a sensing unit sensing the material coupled to the upper molding area or the lower molding area;
Including, hot forging apparatus. A preparation step of transferring and aligning the material to an upper mold having an upper molding region formed therein and a lower mold having a lower molding region formed therein;
Pressing step of pressurizing the material; and
The first take-out portion formed with an inclined portion having one surface inclined with respect to the pressing surface of the upper mold or the lower mold enters toward the center of the upper molding area or the lower molding area, so that the pressed material is removed from the upper mold or the lower mold. an ejection step of pushing and ejecting;
Including, hot forging method. According to claim 13,
In the extraction step,
a lower take-out unit driving step of taking out the material through the first take-out part formed in the lower mold when the upper mold and the lower mold are released and the material is coupled to the lower molding area; and
When the upper mold and the lower mold are released and the material is coupled to the upper molding area, it is formed by being coupled to at least a part of the upper mold in a direction perpendicular to the direction of the first ejection portion coupled to the lower mold, and the upper mold an upper take-out unit driving step of taking out the material through a second take-out part formed such that one surface is inclined with respect to the pressing surface;
including,
The hot forging method of selectively performing the lower take-out driving step and the upper take-out driving step. According to claim 13,
In the pressing step,
In the upper forming region, an upper flow passage forming portion of a separator for a fuel cell is formed,
In the lower molding area, a flow path forming part is formed on the lower surface of the separation plate,
Hot forging method in which the upper surface flow path forming part and the flow path corresponding to the lower surface flow path forming part are respectively formed on the upper and lower surfaces of the material.

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