KR101326824B1 - Mold for hot stamping strip masking - Google Patents

Mold for hot stamping strip masking Download PDF

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Publication number
KR101326824B1
KR101326824B1 KR20110115152A KR20110115152A KR101326824B1 KR 101326824 B1 KR101326824 B1 KR 101326824B1 KR 20110115152 A KR20110115152 A KR 20110115152A KR 20110115152 A KR20110115152 A KR 20110115152A KR 101326824 B1 KR101326824 B1 KR 101326824B1
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KR
South Korea
Prior art keywords
block
coolant
cooling water
mounting space
base plate
Prior art date
Application number
KR20110115152A
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Korean (ko)
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KR20130050025A (en
Inventor
이승상
Original Assignee
현대자동차주식회사
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Application filed by 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR20110115152A priority Critical patent/KR101326824B1/en
Publication of KR20130050025A publication Critical patent/KR20130050025A/en
Application granted granted Critical
Publication of KR101326824B1 publication Critical patent/KR101326824B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00Tools as parts of machines covered by this subclass
    • B21D37/16Heating or cooling
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0068Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for particular articles not mentioned below

Abstract

A die for hot stamping molding is disclosed. Hot stamping molding die according to an embodiment of the present invention is a base plate through which the cooling water is supplied and discharged through the nipple mounted on one side; When hot stamping molding, the outer block is formed in the same shape as the outer shape of the product to form the outer shape of the product, at least one is mounted on one surface of the base plate, the mounting block is formed therein; And a coolant introduced into the mounting space such that the coolant flows into the mounting space of the outer block, coupled to the outer block, and the coolant introduced through the base plate between the outer block and the outer block. And an insert block mounted between the base plate and the contour block to flow on.

Description

MOLD FOR HOT STAMPING STRIP MASKING}
The present invention relates to a die for hot stamping molding, and more particularly, to improve the cooling rate and cooling performance by smoothly flowing the cooling water during hot stamping molding in which a steel sheet is molded at a high temperature to form an ultra high strength product. It relates to a die for hot stamping molding.
In general, molds can be divided into injection molds that produce plastic products, press molds that make products using steel plates, and die casting molds that melt metal and make them together with plastics. For this purpose, it is usually manufactured in a movable type and a fixed type.
In particular, as the mold is used a lot to manufacture a product used in a vehicle, the design for the mold is also made along with the product design.
On the other hand, the automobile industry has recently been required to secure safety by improving crash performance of vehicles. Therefore, automakers use materials such as trip steel, DP steel, aluminum and magnesium alloy steel sheets, or new technologies such as cutting weld blanks (TWB), hydroforming, and hot stamping to realize vehicle weight reduction and high strength. Various researches have been carried out to manufacture car bodies using
Here, hot stamping molding is a panel forming method of forming a steel sheet at a high temperature to form a lightweight car body while maintaining rigidity when the vehicle is manufactured. Refers to the manufacturing method of parts.
The hot stamping molding is a process in which the blank is heated to a temperature higher than the Ac3 transformation point, completely austenitized, and then quenched in a mold and transformed into high strength martensite at the same time as the molding.
The body parts manufactured by hot stamping can maintain high stiffness of 1500 MPa or more in tensile strength, thereby realizing high safety for passengers by improving automobile crash performance.
However, in the conventional hot stamping molding, in order to supply the cooling water to the mold used, the mold is cooled by directly processing a cooling water hole in which the cooling water flows into the mold itself, which forms the outer shape of the product. There is a problem that the cooling water hole processing itself is difficult and takes a lot of hole processing time.
In addition, conventionally, when a plurality of cooling water holes are processed in a mold for rapid cooling of the mold, the strength of the mold itself decreases, so that the mold itself may be cracked or deformed due to shrinkage or deformation of the mold itself during rapid temperature change of the mold. There is also a problem such as damage occurs leaking the coolant flowing inside.
In addition, since the design, fabrication, and verification of the coolant flow line flowing inside the mold is performed through actual modeling, the initial investment cost and time are increased, and the optimal cooling method of the mold is required in the design stage of the new product. It is true.
Therefore, the present invention has been invented to solve the problems described above, the problem to be solved by the present invention, when forming the panel using the hot stamping method, the cooling water therein so that the cooling of the completed panel can proceed quickly It is to provide a mold for hot stamping molding to separate the configuration so that the flow path is formed to be assembled together to facilitate the flow of the cooling water to improve the cooling performance.
In addition, in the process of cooling the molded product, deformation and cracks are prevented in the cooling process of the mold in advance to improve the overall durability and to ensure uniform cooling for each section, thereby producing a product without defects. It is possible, and to provide a mold for hot stamping molding to improve the productivity of the product.
The mold for hot stamping molding according to an embodiment of the present invention for achieving this object is supplied with and discharged through the nipple mounted on one side, along the longitudinal direction on both sides of the first cooling water chamber is stored A base plate each formed; In the hot stamping molding, it is formed in the same shape as the outer shape of the product to form the outer shape of the product, at least one is mounted on one surface of the base plate, the mounting space is formed therein, the mounting space is the internal processing through the An outer block processed into a smaller size than the outer block in the same shape as that of the outer block; And a coolant introduced into the mounting space such that the coolant flows into the mounting space of the outer block, coupled to the outer block, and the coolant introduced through the base plate between the outer block and the outer block. And an insert block mounted between the base plate and the outer shape block so as to flow in the upper portion, wherein the base plate is formed, and one surface corresponding to the insert block is connected to the first coolant chamber therein to store coolant therein. 2 cooling water chambers are respectively formed, and a seal cover is mounted on the other surface corresponding to each of the first cooling water chambers, and the insert block is processed into the same shape as the mounting space and inserted into the mounting space. A body part fixedly mounted and formed to have rounded corners; A storage groove formed at one side and the other side in the longitudinal direction of the body portion so as to store the cooling water between the mounting spaces and connected to the cooling water inflow hole and the cooling water discharge hole respectively formed in the body portion; And at least one coolant flow groove interconnecting each of the storage grooves and formed in a lengthwise direction along an outer shape of the body portion, wherein the coolant flow grooves are spaced apart at predetermined intervals along the width direction of the body portion. Is formed and formed as a hole through which the coolant flows between the inner surface of the mounting space and the body portion, the insert block is inserted into the mounting space of the outer block, it can be mounted to the outer block through welding.
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As described above, according to the mold for hot stamping molding according to an embodiment of the present invention, in forming the panel using the hot stamping method, a flow path through which the coolant flows is formed so that cooling of the completed panel is rapidly progressed. By separating and assembling each other, there is an effect of smoothing the flow of cooling water and improving cooling performance.
In addition, in the process of cooling the molded product, deformation and cracks are prevented in the cooling process of the mold in advance to improve the overall durability and to ensure uniform cooling for each section, thereby producing a product without defects. It is possible to improve the productivity of the product.
1 is a perspective view of a mold for hot stamping molding according to an embodiment of the present invention.
FIG. 2 is an enlarged perspective view of portion A of FIG. 1.
3 is an exploded perspective view of a mold for hot stamping molding according to an embodiment of the present invention.
4 is a view showing a flow direction of the cooling water supplied to the hot stamping molding die according to an embodiment of the present invention.
5 is a sectional view taken along the line BB in Fig.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory only and are not restrictive of the invention, It should be understood that various equivalents and modifications may be present.
1 is a perspective view of a mold for hot stamping molding according to an embodiment of the present invention, Figure 2 is an enlarged perspective view of the portion A of Figure 1, Figure 3 is an exploded view of the mold for hot stamping molding according to an embodiment of the present invention 4 is a perspective view illustrating a flow direction of cooling water supplied to a hot stamping molding die according to an exemplary embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line BB of FIG. 4.
Referring to the drawings, the hot stamping molding die 1 according to an embodiment of the present invention has a flow path through which the coolant flows so that the cooling of the completed panel is rapidly progressed during the molding of the panel using the hot stamping method By separating and assembling to form each other, it is made of a structure that can smoothly flow the cooling water to improve the cooling performance.
In addition, in the process of cooling the molded product, deformation and cracks are prevented in the cooling process of the mold in advance to improve the overall durability and to ensure uniform cooling for each section, thereby producing a product without defects. It is possible, and made of a structure that can improve the productivity of the product.
To this end, the mold for hot stamping molding according to an embodiment of the present invention, as shown in Figures 1 to 3, comprises a base plate 10, the appearance block 20, and the insert block 30 If this is described in more detail for each configuration as follows.
First, the base plate 10 is supplied and discharged with cooling water through a nipple 11 mounted at one side.
The base plate 10 has a coolant flow path (not shown) connected to the nipple 11 formed therein, and the coolant introduced therein is circulated, and then discharged to the outside through the nipple 11.
In the present embodiment, the outer block 20 is formed in the same shape as the outer shape of the product to form the outer shape of the product during hot stamping molding, at least one is mounted on one surface of the base plate 10, therein The mounting space 21 is formed.
That is, a plurality of the outer block 20 is mounted along the longitudinal direction of the base plate 10 according to the shape of the product to be molded.
Here, the outer block 20 is processed in the same shape as the outer shape of the product, the mounting space 21 has the same shape as the outer shape of the outer block 20 through the internal processing, the outer block It is processed to a size smaller than the size of 20.
The insert block 30 is coupled to the outer block 20 in a state in which the insert block 30 is inserted into the mounting space 21 so that the coolant flows into the mounting space 21 of the outer block 20.
The insert block 30 is the base plate 10 so that the coolant flowing through the base plate 10 with the outer block 20 flows on the mounting space 21 of the outer block 20. And between the outer block 20.
Here, the insert block 30 may be fixedly mounted to the outer block 21 through welding while being inserted into the mounting space 21 of the outer block 20.
In the present embodiment, the insert block 30, as shown in Figures 3 to 5, comprises a body portion 31, a storage groove 33, and a coolant flow groove 35.
First, the body portion 31 is processed into the same outer shape as the mounting space 21 is inserted into the mounting space 21, is fixedly mounted to the outer block 20 by welding or the like.
At this time, the body portion 31 may be mounted with its outer circumferential surface inserted into contact with the inner circumferential surface of the mounting space 21.
Here, the body portion 31 prevents damage and damage that may occur when contacting the inner surface of the mounting space 21 when inserted into the mounting space 21, and each corner so as to be inserted and assembled smoothly. The addition can be formed round.
In this embodiment, the storage groove 33 is in one side and the other lower portion in the longitudinal direction of the body portion 31 close to the base plate 10 side so that the coolant is stored between the mounting space 21. Each is formed.
The storage groove 33 serves to store the coolant flowing in and out of the base plate 10 between the mounting space 21 and the body portion 31.
Here, each of the storage grooves 33 are respectively connected to the coolant inlet hole 37 and the coolant discharge hole 39 formed in the body portion 31.
That is, in each of the storage grooves 33, the cooling water introduced is stored in the storage grooves 33 connected to the cooling water inflow hole 37, and the storage grooves 33 connected to the cooling water discharge holes 39 are Cooling water to be discharged through the base plate 10 is stored.
On the other hand, in the present embodiment, the base plate 10 is formed on both sides of the other side along the longitudinal direction, the first cooling water chamber 13 for storing the cooling water is formed, respectively, on one surface corresponding to the insert block 30 The second coolant chamber 15 is connected to the first coolant chamber 13 and the coolant is stored therein.
Each of the first coolant chamber 13 and the second coolant chamber 15 stores coolant to be introduced or discharged at a position where the coolant is introduced and discharged.
Here, the seal cover 17 is mounted on the other surface of the base plate 10 corresponding to each of the first cooling water chambers 13.
The seal cover 17 serves to seal the coolant stored in the first coolant chamber 13 so that the coolant does not leak out of the base plate 10.
That is, the coolant introduced through the nipple 11 is first stored in the first coolant chamber 13 formed at the side into which the coolant flows, among the first coolant chambers 13, and the second coolant connected thereto. The coolant stored in the first coolant chamber 13 is introduced into the chamber 15 and stored therein.
On the contrary, the coolant to be discharged through the nipple 11 is stored and discharged in the first coolant chamber 13 formed on the side of the first coolant chamber 13 where the coolant is discharged, and the second coolant chamber 13 is connected to the second coolant chamber 13. The coolant discharged through the coolant discharge hole 39 is stored and discharged in the coolant chamber 15.
In this embodiment, each of the second cooling water chamber 15 is connected to the cooling water inlet hole 37 and the cooling water discharge hole 39 of the body portion 31, respectively, the storage groove connected to the cooling water inlet hole 37 Cooling water supplied to the 33 is stored, or the cooling water discharged from the storage groove 33 connected to the cooling water discharge hole 39 is stored.
At least one coolant flow groove 35 is formed, and the storage grooves 33 are interconnected to each other.
Here, each of the cooling water flow grooves 35 may be formed to be spaced apart at a predetermined interval along the width direction of the body portion 31, in the present embodiment is formed at equal intervals.
The coolant flow groove 35 may be formed as a hole for forming a flow path through which the coolant flows between the inner surface of the mounting space 21 and the body portion 31.
That is, the coolant flow groove 35 forms a flow path that is a hole through which the coolant flows between the mounting spaces 21 of the outer block 20, so that the coolant flows from the outer circumferential surface of the body portion 31 and the outer block 20. The mounting space 21 is smoothly flowed along the inner circumferential surface.
Here, the first and second cooling water chambers 13 and 15 and the storage groove 33 allow the cooling water supplied and discharged through the nipples 11 of the base plate 10 to be stored, so that the outer block 21 It is possible to prevent the flow of the cooling water supplied to the inside of the gas in advance.
On the other hand, in the present embodiment, the coolant flow groove 35 is formed along the outer circumferential surface of the body portion 31 of the insert block 30, at the same time along the width direction will be described as an embodiment However, the present invention is not limited thereto, and the number and spacing may be changed in consideration of the shape and size of the product to be molded and the flow of cooling water.
Hereinafter, the operation and action of the hot stamping mold according to the embodiment of the present invention configured as described above will be described with reference to FIGS. 4 and 5.
First, the insert block 30 in which the processing of the storage groove 33 and the plurality of coolant flow grooves 35 is completed in the mounting space 21 of the outer block 20 in which the outer space and the mounting space 21 are completed. In the inserted state, it is fixedly mounted by welding or the like.
Here, the insert block 30 is mounted with the outer circumferential surface of the body portion 31 inserted into contact with the inner circumferential surface of the mounting space 21.
When the assembly of the outer block 21 and the insert block 30 is completed, the coolant inlet hole of the insert block 30 corresponds to the position of each of the second coolant chambers 15 formed in the base plate 10. 37) and the cooling water discharge hole 39 in the correct position, the outer block 20 is mounted to complete the assembly of the mold.
As such, when the cooling water is supplied to the hot stamping molding die 1 according to the embodiment of the present invention, when the cooling water is introduced through the nipple 11, as shown in FIG. Along the longitudinal direction of the plate 10 is introduced to correspond to the respective outer block 20, respectively.
In this case, as shown in FIG. 5, the coolant is primarily stored in the first coolant chamber 13 into which the coolant flows among the first coolant chambers 13, and at the same time, the second coolant chamber connected therein. Supplied to (15).
Then, the coolant stored in the second coolant chamber 15 is supplied to the coolant inlet hole 37 of the insert block 30 to store the coolant inlet 33 adjacent to the coolant inlet hole 37 of the storage groove 33. Stored as.
Thereafter, the coolant is formed in the mounting space along the flow path formed between each of the coolant flow grooves 35 formed in the body portion 31 of the insert block 30 between the mounting space 21 of the outer block 20. It moves along the inner side of 21.
The coolant flowing along each of the coolant flow grooves 35 is stored in the storage groove 33 adjacent to the coolant discharge hole 39, and then discharged to the second coolant chamber 15 connected to the coolant discharge hole 39. And, it is stored in the first cooling water chamber 13 connected thereto, and is circulated while being discharged to the outside of the base plate 10 again through the nipple 11.
Accordingly, the hot stamping molding die 1 according to the present embodiment may freely form a coolant flow path through the insert block 30 assembled to the outer block 20 without processing a hole for flowing the coolant into the mold itself. It is possible to improve the degree of freedom when designing the mold, it is possible to improve the cooling performance of the mold, an important factor of hot stamping molding.
Therefore, when applying the hot stamping molding die 1 according to the embodiment of the present invention configured as described above, during the molding of the panel using the hot stamping method, the inside of the panel so that the cooling of the completed molding can proceed quickly By separating and configuring each other to form a flow path through which the coolant flows, the cooling performance can be smoothly improved to improve the cooling performance.
In addition, in the process of cooling the molded product, deformation and cracks are prevented in the cooling process of the mold in advance to improve the overall durability and to ensure uniform cooling for each section, thereby producing a product without defects. It is possible to improve the productivity of the product.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be understood that various modifications and changes may be made without departing from the scope of the appended claims.
10: base plate 11: nipple
13: first coolant chamber 15: second coolant chamber
20: appearance block 21: mounting space
30 insert block 31 body
33: storage groove 35: cooling water flow groove
37: cooling water inlet hole 39: cooling water discharge hole

Claims (10)

  1. Cooling water is supplied and discharged through the nipple mounted on one side, the base plate is formed on both sides in the longitudinal direction, respectively, the first cooling water chamber for storing the cooling water;
    In the hot stamping molding, it is formed in the same shape as the outer shape of the product to form the outer shape of the product, at least one is mounted on one surface of the base plate, the mounting space is formed therein, the mounting space is the internal processing through the An outer block processed into a smaller size than the outer block in the same shape as that of the outer block; And
    The coolant flowed into the mounting space so that the coolant flows to the mounting space of the outer block, coupled to the outer block, and the coolant introduced through the base plate between the outer block and the coolant flows on the mounting space of the outer block. And an insert block mounted between the base plate and the outer block to flow.
    The base plate may have a second coolant chamber formed therein at one surface corresponding to the insert block and connected to the first coolant chamber to store coolant, and a seal cover may be mounted at the other surface corresponding to the first coolant chamber. ,
    The insert block is processed into the same shape as the mounting space is fixed to the outer block in the state inserted into the mounting space, the body portion is formed in each corner rounded; A storage groove formed at one side and the other side in the longitudinal direction of the body portion so as to store the cooling water between the mounting spaces and connected to the cooling water inflow hole and the cooling water discharge hole respectively formed in the body portion; And at least one coolant flow groove interconnecting each of the storage grooves and formed in a longitudinal direction along an outer shape of the body portion.
    Each of the cooling water flow grooves is formed to be spaced apart at a predetermined interval along the width direction of the body portion is formed as a hole through which the coolant flows between the inner surface of the mounting space and the body portion,
    The insert block is inserted into the mounting space of the outer block, the hot stamping molding die, characterized in that mounted to the outer block by welding.
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KR20110115152A 2011-11-07 2011-11-07 Mold for hot stamping strip masking KR101326824B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR20110115152A KR101326824B1 (en) 2011-11-07 2011-11-07 Mold for hot stamping strip masking

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
KR20110115152A KR101326824B1 (en) 2011-11-07 2011-11-07 Mold for hot stamping strip masking
JP2012094742A JP6010328B2 (en) 2011-11-07 2012-04-18 Hot stamping mold
US13/534,857 US20130111965A1 (en) 2011-11-07 2012-06-27 Mold for hot stamping
DE102012211241.3A DE102012211241B4 (en) 2011-11-07 2012-06-29 Forming tool for hot forming
CN2012102733718A CN103084474A (en) 2011-11-07 2012-06-29 Mold for hot stamping

Publications (2)

Publication Number Publication Date
KR20130050025A KR20130050025A (en) 2013-05-15
KR101326824B1 true KR101326824B1 (en) 2013-11-11

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KR20110115152A KR101326824B1 (en) 2011-11-07 2011-11-07 Mold for hot stamping strip masking

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US (1) US20130111965A1 (en)
JP (1) JP6010328B2 (en)
KR (1) KR101326824B1 (en)
CN (1) CN103084474A (en)
DE (1) DE102012211241B4 (en)

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Publication number Priority date Publication date Assignee Title
KR101540209B1 (en) * 2013-10-15 2015-07-29 (주)일지테크 Hot stamping mold for hot stamping strip masking
KR101581940B1 (en) * 2014-07-22 2015-12-31 김동왕 a hot-stamping mold with improved cooling perfomance
JP2016147270A (en) * 2015-02-10 2016-08-18 株式会社ワイテック Mold for hot-press device
KR101758519B1 (en) * 2015-12-23 2017-07-17 주식회사 포스코 Correcting system and method
KR101746985B1 (en) 2015-12-23 2017-06-14 주식회사 포스코 Cooling apparatus and method
US10994316B2 (en) 2015-12-23 2021-05-04 Posco Straightening system and straightening method
US10610917B2 (en) * 2017-03-23 2020-04-07 Ford Motor Company 3D-printed conformal cooling for hot stamping casted die inserts
KR101952232B1 (en) * 2017-04-13 2019-02-27 (주)오토젠 Module type mold with an ascending and descending module block and molding method using the same
KR102052931B1 (en) * 2017-12-29 2019-12-11 주식회사 엠에스 오토텍 Hot stamping die apparatus
WO2019132090A1 (en) * 2017-12-29 2019-07-04 주식회사 엠에스 오토텍 Hot stamping mold apparatus
JP2021023950A (en) * 2019-08-01 2021-02-22 株式会社ジーテクト Mold and manufacturing method of the same

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KR20090100665A (en) * 2008-03-20 2009-09-24 기아자동차주식회사 Cooling device for die casting
KR20110081705A (en) * 2010-01-08 2011-07-14 주식회사 신영 Hot press mold having cooling system

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KR20130050025A (en) 2013-05-15
US20130111965A1 (en) 2013-05-09
DE102012211241B4 (en) 2019-01-03
DE102012211241A1 (en) 2013-05-08
JP2013099774A (en) 2013-05-23
JP6010328B2 (en) 2016-10-19
CN103084474A (en) 2013-05-08

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