KR100527468B1 - Method for manufacturing beam having variable section through roll forming method - Google Patents

Method for manufacturing beam having variable section through roll forming method Download PDF

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Publication number
KR100527468B1
KR100527468B1 KR10-2003-0068374A KR20030068374A KR100527468B1 KR 100527468 B1 KR100527468 B1 KR 100527468B1 KR 20030068374 A KR20030068374 A KR 20030068374A KR 100527468 B1 KR100527468 B1 KR 100527468B1
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roll forming
manufacturing
present
forming method
shape
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KR10-2003-0068374A
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Korean (ko)
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KR20050032334A (en
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김탁수
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/04—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects formed from more than one section in a side-by-side arrangement

Abstract

본 발명의 실시예에 빔 제조방법은 롤 포밍 방법을 이용하여 가변 단면의 빔의 제조하는 방법에 관한 것이다. 본 발명의 실시예에 의한 빔 제조방법은, 롤 포밍 방법에 의해 설정된 형상의 빔을 형성하는 단계; 상기 형성된 빔의 설정된 부분을 제거하는 단계; 및 상기 설정된 부분이 제거된 지점에 설정된 형상을 가지는 조각을 결합하는 결합단계를 포함한다. 따라서, 본 발명의 실시예 의한 빔 제조방법은 강성과 디자인 자유도가 동시에 확보되는 빔을 제조할 수 있다.In the embodiment of the present invention, a beam manufacturing method relates to a method of manufacturing a beam of a variable cross section using a roll forming method. Beam manufacturing method according to an embodiment of the present invention, forming a beam of a shape set by a roll forming method; Removing a set portion of the formed beam; And a joining step of joining pieces having a set shape to a point where the set part is removed. Therefore, the beam manufacturing method according to the embodiment of the present invention can manufacture a beam that ensures both rigidity and design freedom at the same time.

Description

롤 포밍 방법을 이용한 가변 단면 빔 제조방법{METHOD FOR MANUFACTURING BEAM HAVING VARIABLE SECTION THROUGH ROLL FORMING METHOD}METHOD FOR MANUFACTURING BEAM HAVING VARIABLE SECTION THROUGH ROLL FORMING METHOD

본 발명은 빔(beam) 제조 방법에 관한 것으로, 보다 상세하게는 롤 포밍(roll forming)을 통하여 가변 단면의 빔을 제조하는 방법에 관한 것이다.The present invention relates to a method of manufacturing a beam, and more particularly to a method of manufacturing a beam of variable cross section through roll forming.

높은 강성의 빔을 제조하는 방법으로 롤 포밍 방법이 널리 사용되고 있다.The roll forming method is widely used as a method for producing a high rigid beam.

롤 포밍 방법은 초고장력 강판(인장강도 60kgf/㎟ 이상)을 성형할 수 있다. 반면, 일반 프레스(press) 공법을 이용하는 경우, 이러한 초고장력 강판을 제작할 수 없다.In the roll forming method, an ultra high tensile steel sheet (tensile strength of 60 kgf / mm 2 or more) can be formed. On the other hand, when using a general press (press) method, it is not possible to produce such a high tensile steel sheet.

차량의 범퍼(bumper)의 내부 강성 구조물로 사용되는 백 빔(back beam)은, 원가 및 성능을 고려하여 롤 포밍 방법에 의해 주로 제작되고 있다.Back beams used as internal rigid structures of bumpers of vehicles are mainly manufactured by a roll forming method in consideration of cost and performance.

즉, 초고장력 강판의 성형이 가능하기 때문에 충돌 성능 향상을 위해 롤 포밍 방법에 의해 백 빔이 주로 제작되고 있다.That is, the back beam is mainly manufactured by the roll forming method in order to improve the collision performance because the ultra high tensile steel sheet can be formed.

그러나, 롤 포밍에 의해서는 일정한 형상의 단면을 가지는 빔만이 성형 가능하다. 따라서, 상기와 같은 롤 포밍의 장점에도 불구하고, 롤 포밍 방법은 다양한 디자인 요구에 부응하는 빔을 제작하지 못하는 한계를 지니고 있다.However, only a beam having a cross section of a certain shape can be formed by roll forming. Therefore, in spite of the advantages of roll forming as described above, the roll forming method has a limitation in that it cannot produce a beam that meets various design requirements.

특히, 차량의 범퍼의 양단이 크게 휘어진 경우, 차량 사이드 멤버(side member)와 범퍼 커버(bumper cover) 사이에 일정한 단면의 백 빔을 배치할 공간이 부족하게 된다. 따라서, 이러한 경우, 충돌 성능이 떨어지는 프레스 공법에 의해 성형된 빔이 사용될 수 밖에 없다.In particular, when both ends of the bumper of the vehicle are largely bent, there is a lack of space for arranging the back beam of a constant cross section between the vehicle side member and the bumper cover. Therefore, in this case, a beam formed by a press method having a low impact performance cannot be used.

본 발명은 상기 전술한 바와 같은 문제점들을 해결하기 위해 창출된 것으로서, 일정한 강성 확보와 디자인 자유도의 확보가 동시에 가능한 롤 포밍에 의한 빔 제조방법을 제공함에 그 목적이 있다.The present invention has been made to solve the above problems, and an object of the present invention is to provide a method for manufacturing a beam by roll forming capable of simultaneously securing a certain rigidity and securing design freedom.

상기 목적을 달성하기 위한 본 발명의 실시예에 의한 빔 제조방법은, 롤 포밍 방법에 의해 차량의 범퍼 커버와 차량의 범퍼를 지지하는 사이드 멤버의 사이에 삽입될 수 있는 형상을 가지는 빔을 형성하는 단계, 상기 형성된 빔의 적어도 일부를 제거하는 단계, 및 상기 빔의 적어도 일부가 제거된 지점에 결합될 수 있는 형상을 가지는 조각을 결합하는 결합단계를 포함한다.상기 적어도 일부는 상기 빔의 길이방향의 양쪽 끝단의 일부인 것이 바람직하다.상기 결합단계에서, 상기 조각은 용접을 통하여 상기 빔에 결합 되는 것이 바람직하다.The beam manufacturing method according to an embodiment of the present invention for achieving the above object is to form a beam having a shape that can be inserted between the bumper cover of the vehicle and the side member supporting the bumper of the vehicle by a roll forming method And removing at least a portion of the formed beam, and joining a piece having a shape that can be joined to a point where at least a portion of the beam is removed. The at least part is in the longitudinal direction of the beam. Preferably it is part of both ends of. In the joining step, the piece is preferably joined to the beam by welding.

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이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조로 설명한다. Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

도1 내지 도3에 도시된 바와 같이, 본 발명의 실시예에 의한 빔 제조 방법은, 롤 포밍 방법에 의해 차량의 범퍼 커버와 차량의 범퍼를 지지하는 사이드 멤버(210)의 사이에 삽입될 수 있는 형상을 가지는 빔(100)을 형성하는 단계(S110)를 포함한다.1 to 3, the beam manufacturing method according to the embodiment of the present invention may be inserted between the bumper cover of the vehicle and the side member 210 supporting the bumper of the vehicle by a roll forming method. Forming a beam 100 having a shape (S110).

도2에는 롤 포밍 방법에 의해 생성된 빔(100)의 일예가 되시되어 있다.2 shows an example of the beam 100 generated by the roll forming method.

또한, 본 발명의 실시예에 의한 빔 제조 방법은, 상기 형성된 빔의 적어도 일부(220)를 제거하는 단계(S120)를 포함한다.In addition, the beam manufacturing method according to an embodiment of the present invention includes the step (S120) of removing at least a portion 220 of the formed beam.

제거되는 적어도 일부(220)는, 빔의 길이방향의 양쪽 끝단부의 일부분으로 할 수 있다.The at least part 220 to be removed may be part of both ends of the beam in the longitudinal direction.

그리고, 본 발명의 실시예에 의한 빔 제조 방법은, 빔의 적어도 일부(220)가 제거된 지점에 결합 될 수 있는 형상을 가지는 조각(piece, 200)를 결합하는 단계(S130)를 포함한다.In addition, the beam manufacturing method according to an embodiment of the present invention includes a step (S130) of coupling a piece (piece, 200) having a shape that can be coupled to the point where at least a portion 220 of the beam is removed.

예를 들어, 조각을 결합하는 단계는, 용접(welding)을 통하여 상기 빔에 결합될 수 있다.For example, the step of joining the pieces may be coupled to the beam through welding.

도3에는 롤 포밍에 의해 생성된 빔의 끝단부의 일부가 제거된 후 그 끝단부의 일부가 제거된 부분에 설정된 형상의 조각(200)이 결합된 빔(100)이 도시되어 있다. 3 shows a beam 100 in which a piece 200 of a set shape is coupled to a portion where a portion of the end portion of the beam generated by roll forming is removed and then a portion of the end portion is removed.

조각(200)의 형상은 빔(100)이 사용되는 용도에 적합한 임의의 형상으로 할 수 있다.The shape of the piece 200 can be any shape suitable for the use in which the beam 100 is used.

빔(100)의 끝단부의 일부를 제거하고 소정 형상의 조각(200)을 결합함으로써, 빔(100)의 폭을 크게 줄일 수 있다. 따라서, 이와 같이 제작된 빔은, 보다 좁은 공간에 설치될 수 있다.이상에서, 본 발명의 바람직한 실시예를 설명하였으나, 본 발명은 상기 실시예에 한정되지 아니하며, 본 발명의 실시예로부터 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 용이하게 변경되어 균등하다고 인정되는 범위의 모든 변경 및/또는 수정을 포함한다.By removing a portion of the end of the beam 100 and joining the pieces 200 of a predetermined shape, the width of the beam 100 can be greatly reduced. Therefore, the beam manufactured as described above may be installed in a narrower space. Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and the present invention from the embodiment of the present invention. It includes all changes and / or modifications within the range which are easily changed by one of ordinary skill in the art to be considered equivalent.

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상기와 같은 본 발명의 실시예에 의한 빔 제조 방법은 롤 포밍 방법을 통하여 빔을 제조하고 제조된 빔의 특정 부분을 제거하여 임의의 조각을 결합함으로써, 일정한 강도를 가짐과 동시에 그 단면이 가변될 수 있는 빔을 제작할 수 있다.In the beam manufacturing method according to the embodiment of the present invention as described above, the beam is manufactured through a roll forming method, and a specific portion of the manufactured beam is removed to combine arbitrary pieces, thereby having a constant strength and varying in cross section thereof. Can produce a beam.

도1은 본 발명의 실시예에 의한 빔 제조방법을 간략히 보여주는 순서도이다.1 is a flow chart briefly showing a beam manufacturing method according to an embodiment of the present invention.

도2 및 도3은 본 발명의 실시예에 의한 빔 제조방법에 의해 성형되는 빔의 순차적인 상태를 보여주는 도면들이다.2 and 3 are views showing a sequential state of a beam formed by the beam manufacturing method according to an embodiment of the present invention.

Claims (3)

롤 포밍 방법에 의해 차량의 범퍼 커버와 차량의 범퍼를 지지하는 사이드 멤버의 사이에 삽입될 수 있는 형상을 가지는 빔을 형성하는 단계;Forming a beam having a shape that can be inserted between the bumper cover of the vehicle and the side member supporting the bumper of the vehicle by a roll forming method; 상기 형성된 빔의 적어도 일부를 제거하는 단계; 및 Removing at least a portion of the formed beam; And 상기 빔의 적어도 일부가 제거된 지점에 결합될 수 있는 형상을 가지는 조각을 결합하는 결합단계를 포함하는 빔 제조 방법.And a joining step of joining pieces having a shape that can be joined to a point where at least a portion of the beam is removed. 제1항에서,In claim 1, 상기 적어도 일부는 상기 빔의 길이방향의 양쪽 끝단의 일부인 빔 제조 방법.Wherein said at least part is part of both ends in the longitudinal direction of the beam. 제1항에서,In claim 1, 상기 결합단계에서, 상기 조각은 용접을 통하여 상기 빔에 결합 되는 빔 제조 방법.In the joining step, the piece is joined to the beam by welding.
KR10-2003-0068374A 2003-10-01 2003-10-01 Method for manufacturing beam having variable section through roll forming method KR100527468B1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5395036A (en) * 1990-03-26 1995-03-07 Shape Corporation Method of roll-forming an end automotive bumper
KR19980038087A (en) * 1996-11-23 1998-08-05 박병재 Rear bumper guard bar structure
KR19980076540A (en) * 1997-04-10 1998-11-16 박병재 Method for manufacturing bumper beams for vehicles
KR19990006340U (en) * 1997-07-25 1999-02-25 홍종만 Bumper Structure for Vehicle
KR19990066286A (en) * 1998-01-23 1999-08-16 이종희 Reinforcement beam for automobile bumper and manufacturing method
JPH11254969A (en) * 1998-03-12 1999-09-21 Hirata Technical Co Ltd Manufacture of door beam
JP2001062532A (en) * 1999-08-30 2001-03-13 Toyota Motor Corp Deformed cross section forming of hollow pipelike work

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5395036A (en) * 1990-03-26 1995-03-07 Shape Corporation Method of roll-forming an end automotive bumper
KR19980038087A (en) * 1996-11-23 1998-08-05 박병재 Rear bumper guard bar structure
KR19980076540A (en) * 1997-04-10 1998-11-16 박병재 Method for manufacturing bumper beams for vehicles
KR19990006340U (en) * 1997-07-25 1999-02-25 홍종만 Bumper Structure for Vehicle
KR19990066286A (en) * 1998-01-23 1999-08-16 이종희 Reinforcement beam for automobile bumper and manufacturing method
JPH11254969A (en) * 1998-03-12 1999-09-21 Hirata Technical Co Ltd Manufacture of door beam
JP2001062532A (en) * 1999-08-30 2001-03-13 Toyota Motor Corp Deformed cross section forming of hollow pipelike work

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