KR20060029803A - An apparatus for explosion forming and method using the same - Google Patents

Abstract

The present invention relates to an explosive molding apparatus and an explosive molding method in which an explosive is installed inside a to-be-molded material to mold a to-be-molded material such as a plate. The explosive molding apparatus according to the present invention forms an inner space, wherein the inner space includes at least one mold in which at least one molded object having a sealed space is disposed, and is located in an enclosed space of the molded material and includes explosive material and explosive material. An explosion unit including an igniter to ignite, and an ignition driver to explode the explosive material by driving the igniter. In addition, the explosive molding method according to the present invention comprises the step of installing the first molding member and the second to be spaced apart, the explosives are installed in the space between the first and second to-be-molded material and the first Positioning the part to be molded and the second part in the inner space of the mold, sealing the part where the explosive is installed by joining the edges of the first part and the second part, and exploding the explosive And molding the shaped material.

Explosive Molding, Sealed, Explosives, Igniter

Description

Explosive Molding Apparatus and Explosive Molding Method Using The Same {AN APPARATUS FOR EXPLOSION FORMING AND METHOD USING THE SAME}

1 is a view schematically showing an explosion molding apparatus according to an embodiment of the present invention.

FIG. 2 is a view schematically showing the principle of the explosion molding of FIG.

3 is a view schematically showing a conventional hydraulic molding apparatus.

4 is a view schematically showing a conventional explosion-molding apparatus.

The present invention relates to an explosive molding apparatus and an explosive molding method, and more particularly, to an explosive molding apparatus and an explosive molding method in which an explosive is installed in a molding material to mold a shaped material such as a plate.

In order to manufacture parts used for automobiles, shipbuilding, home appliances, etc., a process of molding a material into a predetermined shape is required. Conventionally, a material having a predetermined shape may be processed by filling a mold having a predetermined shape or by applying a pressure to the material using a press. By the way, the processing of the material according to this method is impossible to form a complicated shape, there is a problem that the amount of molding is limited due to friction of the mold and the like.

In order to solve this problem, a hydroforming apparatus for processing a material into a predetermined shape using a gas or liquid of high pressure has been proposed.

Figure 3 schematically shows a hydraulic molding apparatus according to the prior art. As shown, a mold 110 such as a pipe or tube is positioned between the upper mold 121 and the lower mold 123. At this time, one side of the molding member 110 is sealed by the sealing member 130 and the other side of the molding member 110 is connected to the hydraulic device (140). When the fluid of the fluid storage unit 150 is injected into the mold member 110 at a high pressure through the hydraulic device 140, the mold member 110 is molded according to the internal shape of the mold by the pressure of the fluid (FIG. See arrow direction 3).

Such a hydraulic forming apparatus should have means for generating and supplying a high pressure fluid and means for sealing one end of the molding material. For such a facility, a large space is required, and there is a problem that costs a lot. Therefore, there exists a problem that productivity falls in material processing.

In order to solve the problem of the hydraulic molding apparatus, an explosion forming apparatus using explosion pressure has been proposed.

Figure 4 schematically shows an explosive molding device according to the prior art. As shown, the explosive molding device is a member 160 in the form of a pipe or tube is located between the upper mold 171 and the lower mold (173). At this time, one side of the molding member 160 is sealed by the sealing member 180 and the igniter 190 is inserted into the other side. When the gunpowder mounted on the igniter 190 is exploded in a state where the igniter 190 is inserted at one end, the molded object 160 is molded according to the internal shape of the mold by the explosion pressure (see arrow direction in FIG. 4).

The explosive molding apparatus is exploded and molded with the igniter inserted into one end of the molded object, and thus the shape of the molded object is restricted and the molding may occur unevenly. In addition, there is a problem that continuous operation is impossible.

The present invention is to solve the above problems, an object of the present invention is to provide an explosion-molding apparatus and an explosion-molding method capable of uniformly forming a complex shape at low cost by installing the explosive material and the igniter inside the molding material. It is. In addition, another object of the present invention is to provide an explosive molding apparatus and an explosive molding method capable of increasing the productivity by the continuous operation.

In order to achieve the above object, the explosive molding apparatus according to the present invention includes an at least one mold in which an inner space is formed and the at least one mold member having a sealed space is formed in the inner space, and the enclosed space of the molded material. It is located and includes an explosive part including an igniter for igniting the explosives and explosives, and an ignition drive for exploding the explosives by driving the igniter.

The ignition driving unit may remotely drive the igniter using an induced voltage or ultrasonic waves, or may be connected to the igniter and an electric line to drive the igniter.

It may include a supply unit for transferring the molding material to the inner space of the mold and a discharge unit for transporting the molding material is completed.

The mold includes a first mold positioned on the upper part of the molding material and a second mold positioned on the lower part of the molded material, and connected to the first mold and the second mold, respectively, to form the first mold and the second mold. It may include a position adjusting unit for raising and lowering.

The ignition control unit may further include an ignition control unit connected to the ignition driving unit to control the ignition driving unit.

In addition, the explosive molding method according to the present invention, the step of installing the first and second to-be-molded material, the explosives are installed in the space between the first and the second workpiece, (1) placing the molding member and the second molding member in an internal space of the mold, bonding the edges of the first molding member and the second molding member to seal the part where the explosive is installed, and Blasting to mold the shaped material.

The step of bonding the edges of the first molded material and the second formed material to seal the portion where the explosives are installed may be performed by welding or solid-state bonding the edges of the first formed material and the second formed material. Can be bonded.

The step of sealing the portion where the explosive is installed by joining the edges of the first and second workpieces, the mold is pressed by pressing the edges of the first and second workpieces. The edges of the molding material and the second workpiece can be joined.

The explosion molding method according to the present invention may further include preheating the mold or preheating the molded member.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. These examples are merely to illustrate the invention, but the invention is not limited thereto.

1 is a view schematically showing an explosive molding apparatus according to an embodiment of the present invention, Figure 2 is a schematic diagram showing the principle of the explosion molding of FIG.

In the explosive molding apparatus according to the present embodiment, the mold 20 in which the molded object 10 is disposed, the position adjusting unit 30, the explosion unit 40, the ignition driving unit 45, the ignition control unit 47, and the supply unit 50 and the discharge unit 60.

In the present embodiment, the mold 20 includes a first mold 21 and a second mold 22, and an internal space 25 is formed between the first mold 21 and the second mold 22. . The internal space 25 is a space in which the molded object 10 is disposed, and has a predetermined processing shape.

The first mold 21 and the second mold 22 may be provided with a position adjusting unit 30 for raising and lowering them. The position adjusting unit 30 serves to facilitate the supply and discharge of the mold 10 by elevating or lowering the first mold 21 and the second mold 22. Since the function of the position adjusting unit 30 can be easily understood by those skilled in the art, detailed description thereof will be omitted.

In the internal space 25 of the mold 20, the molded object 10 having the sealed space 15 therein is located. In the present embodiment, the molded object 10 includes a first molded material 11 and a second molded material 12, and the first molded material 11 and the second molded material 12 are The edges are joined to form a closed space 15 at the surface center portion of the first to-be-molded material 11 and the second to-be-molded material 12.

The explosive part 40 including the explosive material 41 and the igniter 43 for igniting the explosive material is located in the sealed space 15 of the shaped material 10. The explosive material 41 is preferably formed in a shape in consideration of the final processing shape in order to uniformly mold the molded object 10. Since the explosive material 41 and the igniter 43 can be easily understood by those skilled in the art, detailed description thereof will be omitted.

An ignition driver 45 for driving the igniter 43 is located inside or outside the mold 20. The ignition driver 45 is connected to the igniter 43 by an electric wire or the like to drive the igniter 43 or the igniter 43 by a remote method such as an induced voltage or ultrasonic wave.

The ignition controller 47 is connected to the ignition driver 45 to control the operation of the ignition driver 45. The ignition control unit 47 receives information such as an ignition time according to the type of the shaped material, the final processing shape of the shaped material, and the like.

Under the control of the ignition controller 47, the ignition driver 45 drives the igniter 43, and the igniter 43 ignites the explosive material 41 to cause an explosion. Due to the pressure caused by the explosion, the first to-be-molded material 11 and the second to-be-molded material 12 are shaped like the shape of the internal space 25. (See arrows in FIG. 2)

Outside the mold 20, the supply unit 50 for transferring the mold 10 to be molded to the internal space 25 of the mold 20 and the molded object 17 having completed molding are placed on the mold 20. A discharge unit 60 for transferring to the outside is formed. In this embodiment, since the position control unit 30, the supply unit 50, the discharge unit 60 is provided with a continuous operation is possible, the work of explosion molding is simplified and the efficiency is improved.

Hereinafter, the operation and explosion molding method of the explosive molding device having such a configuration will be described.

First, the first to be formed 11 and the second to be formed 12 having a predetermined distance from each other, and the space between the first to 11 and the second to be formed 12 An explosion unit 40 including an explosive material 41 and an igniter 43 is installed. The first to-be-molded material 11 and the second to-be-molded material 12 in which the explosion part 40 was installed are conveyed through the supply part 50 to the internal space 25 of the metal mold | die 20. FIG.

Next, by joining the edges of the first and second to-be-molded material 11 and the second to-be-molded material 12 to the surface center vicinity of the 1st to-be-molded material 11 and the 2nd to-be-molded material 12 with which the said explosive material was installed. The sealed space 15 is formed. In order to join the edges of the first to-be-molded material 11 and the second to-be-molded material 12, methods, such as welding and solid state bonding, can be applied. In addition, by moving the furnace mold 20 to the position adjusting unit 30, the first mold 21 and the second mold 22 move the edges of the first mold member 11 and the second mold member 12. It is also possible to apply a method in which the edges of the first to-be-molded material 11 and the second to-be-molded material 2 are joined by compression.

Subsequently, when the ignition driving unit 45 drives the igniter 43 under the control of the ignition control unit 47, the igniter 43 ignites the explosive material 41 to form the first molded member 11 and the second formed object. An explosion occurs in the sealed space 15 formed in the member 12. The high pressure formed by the explosion shape | molds the 1st to-be-molded material 11 and the 2nd shaping | molding member 12 to the shape of the internal space 25. FIG. (See arrows in FIG. 2)

Finally, the position adjusting unit 30 moves the first mold 21 or the second mold 22 to be spaced apart from each other, and discharges the processed molding material 17 through the discharge unit 60. This completes all the work.

In the present invention, by pre-heating the mold 20 or pre-heating the mold 10 before the step of forming the mold 20 by exploding the explosives to facilitate the molding 20 It can be molded.

As described above, according to the present invention, there is no friction between the mold and the mold during the molding process, so that molding of a complicated shape is possible, and molding requiring a large molding amount is also possible.

In addition, since molding is possible only with a simple device such as an explosive, an igniter and an ignition driving device, there is an advantage in that the working space is small, the equipment is simple, and the molding is possible at a low cost.

In addition, by placing the explosives and the igniter in the closed space of the molding material, there is an effect that can be uniformly formed during the molding by the explosion. At this time, if the explosive having a shape in consideration of the shape of the mold is used, more uniform molding can be obtained.

In addition, since the molding process may be continuously performed by providing the supply part, the discharge part, and the position adjusting part, the work may be simplified and the productivity may be improved.

Although the present invention has been described above, it will be readily understood by those skilled in the art that various modifications and variations are possible without departing from the spirit and scope of the claims set out below.

Claims (11)

At least one mold having an inner space, the inner space having at least one molded object having a sealed space; An explosive part positioned in a sealed space of the molded object and including an igniter for igniting the explosive material and the explosive material; And Ignition drive unit for exploding the explosive material by driving the igniter Explosive molding apparatus comprising a. The method of claim 1, And the ignition driving unit remotely drives the igniter using an induced voltage or ultrasonic waves. The method of claim 1, And the ignition driving unit is connected to the igniter and an electric line to drive the igniter. The method of claim 1, And a supply part for transferring the molding material to the inner space of the mold and a discharge part for transferring the molding material to which the molding is completed. The method of claim 4, wherein The mold includes a first mold located on the upper part of the molding material and a second mold located on the lower part of the molding material, And a position adjusting part connected to each of the first mold and the second mold to move up and down the first mold and the second mold. The method of claim 1, And an ignition control unit connected to the ignition driving unit to control the ignition driving unit. Spaced apart from the first molding member and the second molding member; Installing explosives in a space between the first and second shaped materials and placing the first and second shaped materials in an internal space of a mold; Sealing edges of the explosives by bonding the edges of the first and second workpieces; And Blasting the explosive to mold the shaped material Explosive molding method comprising a. The method of claim 7, wherein The step of bonding the edges of the first molded material and the second formed material to seal the portion where the explosives are installed may be performed by welding or solid-state bonding the edges of the first formed material and the second formed material. Explosion molding method. The method of claim 7, wherein The step of sealing the portion where the explosive is installed by joining the edges of the first and second workpieces, the mold is pressed by pressing the edges of the first and second workpieces. Explosion molding method of joining the edge of the molding material and the second workpiece. The method of claim 7, wherein And preheating the mold. The method of claim 7, wherein And preheating the molded member.

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