KR100867831B1 - Manufacturing method of sub frame front member - Google Patents

Manufacturing method of sub frame front member Download PDF

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Publication number
KR100867831B1
KR100867831B1 KR1020070131773A KR20070131773A KR100867831B1 KR 100867831 B1 KR100867831 B1 KR 100867831B1 KR 1020070131773 A KR1020070131773 A KR 1020070131773A KR 20070131773 A KR20070131773 A KR 20070131773A KR 100867831 B1 KR100867831 B1 KR 100867831B1
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KR
South Korea
Prior art keywords
panel
reinforcing rib
manufacturing
foaming
foam
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KR1020070131773A
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Korean (ko)
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임홍재
김찬묵
김기창
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현대자동차주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
    • B62D21/152—Front or rear frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/11—Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension, e.g. of wheels or engine; sub-frames for mounting engine or suspensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2500/00—Indexing codes relating to the regulated action or device
    • B60G2500/30—Height or ground clearance
    • B60G2500/32—Height or ground clearance of only one vehicle part or side
    • B60G2500/322—Height or ground clearance of only one vehicle part or side only front part

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

A manufacturing method of sub-frame front member is provided to increase the intensity and rigidity using a reinforcing structure. A manufacturing method of sub-frame front member comprises following steps: a step for injection molding an upper panel(51) and lower panel(52), and binding into one body the upper projection(55) in the upper panel and lower panel and lower projection(56); a step for binding the upper foamed component(58) and lower foamed component(59) the outer side of the upper panel and outer side of the lower panel; a step for putting the front upper member on the outer side of the upper panel which is combined to the box type the upper foamed component is adopted to the internal space of the front upper member(11); a step for combining the upper panel, the lower panel, the front upper member and front lower member(13).

Description

서브프레임 프론트멤버의 제조방법{Manufacturing method of sub frame front member}Manufacturing method of sub frame front member}

본 발명은 서브프레임 프론트멤버의 제조방법에 관한 것으로, 보다 상세하게는 프론트어퍼멤버와 프론트로어멤버사이에 보강구조물을 구비한 서브프레임 프론트멤버의 제조방법에 관한 기술이다.The present invention relates to a method for manufacturing a subframe front member, and more particularly, to a method for manufacturing a subframe front member having a reinforcing structure between the front upper member and the front lower member.

일반적으로, 서스펜션멤버(suspension member)라고도 불리우는 서브프레임(sub frame)은 동력전달장치의 부품들이 조립되면서 차체의 골격을 이루는 부재로서, 도 1에 도시된 바와 같이 차체의 좌우방향으로 가로질러 설치되는 프론트멤버(10) 및 리어멤버(20)와, 차체의 전후방향으로 가로질러 설치되는 양측의 사이드멤버(30)의 결합에 의해 그 형상을 이루도록 되어 있다.In general, a subframe, also called a suspension member, is a member that forms a skeleton of the vehicle body while the components of the power transmission unit are assembled, and is installed across the left and right directions of the vehicle body as shown in FIG. 1. The front member 10 and the rear member 20 are combined with the side members 30 on both sides provided in the front and rear directions of the vehicle body to form the shape.

여기서, 상기 프론트멤버(10)는 프론트어퍼멤버 및 프론트로어멤버가 박스형태로 결합되어 그 외형을 이루고 있으며, 또한 차체의 좌우방향을 향하는 길이방향을 따라서 오일팬(40)의 보호를 위하여 최소 한군데 이상이 절곡 성형된 절곡부(M1)를 갖추고 있는 바, 상기 절곡부(M1)로 인해 굽힘 및 비틀림 진동 발생시 변형에 의한 진동 감도가 불리하고, 아울러 강도가 약한 문제점이 있었다.Here, the front member 10 is a front upper member and the front lower member is coupled to form a box to form an outer shape, and at least one place for the protection of the oil pan 40 along the longitudinal direction toward the left and right direction of the vehicle body. Since the bending part M1 is formed by bending, the bending part M1 has a disadvantage in that the vibration sensitivity due to deformation during bending and torsional vibrations is disadvantageous and the strength is weak.

이에 본 발명은, 굽힘 및 비틀림 진동 발생시 변형에 의한 진동 감도가 좋아지도록 개선하고 아울러 보다 향상된 강도를 갖출 수 있도록 프론트어퍼멤버와 프론트로어멤버사이에 보강구조물을 구비한 서브프레임 프론트멤버의 제조방법을 제공함에 그 목적이 있다.Accordingly, the present invention provides a method of manufacturing a subframe front member having a reinforcing structure between the front upper member and the front lower member so as to improve vibration sensitivity due to deformation when bending and torsional vibrations are generated and to further improve strength. The purpose is to provide.

상기한 바의 목적을 달성하기 위한 본 발명 서브프레임 프론트멤버의 제조방법은, 내부공간에 어퍼보강리브와 로어보강리브를 각각 구비한 어퍼패널 및 로어패널을 사출 성형하고 상기 어퍼패널과 상기 로어패널에 어퍼돌기물과 로어돌기물을 일체로 결합시키는 단계와; 상기 어퍼패널과 상기 로어패널을 접착부재를 이용하여 박스형태로 결합시킨 상태에서 상기 어퍼패널의 외측 및 상기 로어패널의 외측을 각각 감싸도록 접착성이 있는 어퍼발포부재와 로어발포부재를 결합시키는 단계와; 상기 로어발포부재가 프론트로어멤버의 내부공간에 수용되도록 박스형태로 결합된 상기 로어패널을 상기 프론트로어멤버속으로 삽입시켜 끼우고 상기 어퍼발포부재가 프론트어퍼멤버의 내부공간에 수용되도록 박스형태로 결합된 상기 어퍼패널의 외측에 상기 프론트어퍼멤버를 덧씌우는 단계와; 상기 어퍼발포부재와 상기 로어발포부재를 발포시켜 박스형태로 결합된 상기 어퍼패널 및 상기 로어패널과 상기 프론트어퍼멤버 및 상기 프론트로어멤버를 일체로 결합키시는 단계;를 포함하여 이루어지는 것을 특징으로 한다.In order to achieve the above object, the present invention provides a method for manufacturing a subframe front member, by injection molding the upper panel and the lower panel each having an upper reinforcing rib and a lower reinforcing rib in an inner space, and Combining the upper projection and the lower projection integrally; Coupling the upper foaming member and the lower foaming member having an adhesive so as to surround the outer side of the upper panel and the outer side of the lower panel, respectively, in a state in which the upper panel and the lower panel are joined in a box shape using an adhesive member; Wow; The lower panel is inserted into the front lower member by inserting the lower panel coupled to the box shape so that the lower foam member is accommodated in the inner space of the front lower member. Overlaying the front upper member on an outer side of the upper panel coupled; And foaming the upper foam member and the lower foam member to integrally combine the upper panel and the lower panel, the front upper member, and the front lower member coupled in a box shape. .

본 발명에 의한 서브프레임의 프론트멤버는, 프론트어퍼멤버와 프론트로어멤버사이에 구비된 보강구조물에 의해 강도 및 강성이 크게 증대된 구조를 갖게 됨으로써, 서브프레임의 전체적인 강도 및 강성 증대에 큰 도움을 줄 수 있게 되고, 이를 통해 차량에 대한 소비자의 신뢰도를 크게 높일 수 있게 되어 상품성 향상에 일조할 수 있는 효과가 있다.The front member of the subframe according to the present invention has a structure in which strength and rigidity are greatly increased by a reinforcing structure provided between the front upper member and the front lower member, thereby greatly helping to increase the overall strength and rigidity of the subframe. It is possible to give, which can greatly increase the consumer's confidence in the vehicle has the effect of contributing to the improvement of the merchandise.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

본 발명 실시예에 따른 서브프레임은 도 1에 도시된 바와 같이, 차체의 좌우방향으로 가로질러 설치되는 프론트멤버(10) 및 리어멤버(20)와, 차체의 전후방향으로 가로질러 설치되는 양측의 사이드멤버(30)의 결합에 의해 그 형상을 이루도록 되어 있다.Subframe according to the embodiment of the present invention, as shown in Figure 1, the front member 10 and the rear member 20, which is installed across the left and right directions of the vehicle body, and the two sides of the vehicle installed across the front and rear direction of the vehicle body The shape of the side member 30 is combined.

여기서, 상기 프론트멤버(10)는 차체의 좌우방향을 향하는 길이방향을 따라서 오일팬(40)의 보호를 위하여 최소 한군데 이상이 절곡 성형된 절곡부(M1)를 갖추고 있다.Here, the front member 10 is provided with a bent portion (M1) is bent and formed at least one or more places for the protection of the oil pan 40 along the longitudinal direction in the left and right direction of the vehicle body.

상기 프론트멤버(10)는 상기 절곡부(M1)로 인해 굽힘 및 비틀림 진동 발생시 변형에 의한 진동 감도가 불리하고, 아울러 강도가 약한 문제가 발생할 수 있는 바, 본 발명의 실시예는 이러한 문제를 해결하기 위하여 도 1에 도시된 바와 같이 프론트어퍼멤버(11)와 프론트로어멤버(13)사이에 보강구조물을 구비한 구성이며, 상기 보강구조물은 어퍼패널(51), 로어패널(52), 어퍼보강리브(53), 로어보강리브(54), 어퍼돌기물(55), 로어돌기물(56), 어퍼발포부재(58), 로어발포부재(59)를 포함하여 이루어지는 구성이다.The front member 10 may be disadvantageous due to the vibration sensitivity due to deformation when bending and torsional vibration occurs due to the bent portion M1, and a problem of weak strength may occur, and the embodiment of the present invention solves this problem. 1 is a configuration having a reinforcement structure between the front upper member 11 and the front lower member 13 as shown in FIG. 1, wherein the reinforcement structure is an upper panel 51, a lower panel 52, and upper reinforcement. The rib 53, the lower reinforcing rib 54, the upper protrusion 55, the lower protrusion 56, the upper foam member 58, and the lower foam member 59 are constituted.

이하, 도 2 내지 도 7을 참조하여 본 발명에 따른 서브프레임 프론트멤버의 제조방법에 대해 설명한다.Hereinafter, a method of manufacturing a subframe front member according to the present invention will be described with reference to FIGS. 2 to 7.

제 1단계는, 도 2와 같이 한쪽이 개구된 단면 형상을 갖춘 어퍼패널(51)과 로어패널(52)을 플라스틱을 이용하여 사출 성형으로 제작하는 단계이다.In the first step, as shown in FIG. 2, the upper panel 51 and the lower panel 52 each having an open cross-sectional shape are manufactured by injection molding using plastic.

여기서, 상기 어퍼패널(51)과 상기 로어패널(52)을 사출 성형할 때, 상기 어퍼패널(51)의 내부공간에는 어퍼보강리브(53)가 구비되도록 하고, 또한 상기 로어패널(52)의 내부공간으로는 로어보강리브(54)가 구비되도록 한다.Here, when injection molding the upper panel 51 and the lower panel 52, an upper reinforcing rib 53 is provided in the inner space of the upper panel 51, and the lower panel 52 A lower reinforcing rib 54 is provided as an inner space.

상기 어퍼보강리브(53)와 상기 로어보강리브(54)는 엑스자(Ｘ)형 단면을 갖도록 성형된다.The upper reinforcing rib 53 and the lower reinforcing rib 54 are formed to have an X-shaped cross section.

그리고, 상기 어퍼보강리브(53)의 양 끝단에 구비된 플랜지(53a)는 상기 어퍼패널(51)의 양 끝단을 감싸면서 상기 어퍼패널(51)과 헤밍(hemming) 결합구조를 이루도록 성형된다.The flanges 53a provided at both ends of the upper reinforcing rib 53 are formed to form a hemming coupling structure with the upper panel 51 while surrounding both ends of the upper panel 51.

제 2단계는, 상기 어퍼패널(51)과 상기 로어패널(52)에 어퍼돌기물(55)과 로어돌기물(56)을 일체로 결합시키는 단계이다.In the second step, the upper protrusions 51 and the lower protrusions 56 are integrally coupled to the upper panel 51 and the lower panel 52.

여기서, 상기 어퍼돌기물(55)과 상기 로어돌기물(56)은, 일단은 상기 어퍼패널(51)과 상기 로어패널(52)에 구비된 돌기구멍(51b,52a)으로 각각 삽입되어 상기 어퍼보강리브(53) 및 상기 로어보강리브(54)와 결합을 이루고 타단은 상기 돌기구 멍(51b,52a)을 통해 상기 어퍼패널(51) 및 상기 로어패널(52)의 외측으로 돌출되도록 인서트 성형으로 결합되는 구조이다.Here, the upper protrusions 55 and the lower protrusions 56 are respectively inserted into protrusion holes 51b and 52a provided in the upper panel 51 and the lower panel 52, respectively. Insert molding is formed to be coupled to the reinforcing rib 53 and the lower reinforcing rib 54 and the other end is protruded to the outside of the upper panel 51 and the lower panel 52 through the projection yoke (51b, 52a). It is a structure that is combined into.

제 3단계는, 도 3과 같이 상기 어퍼보강리브(53)와 상기 로어보강리브(54)사이에 개재된 접착부재(57; 테이프, 본드 등)를 이용하여 상기 어퍼보강리브(53)와 상기 로어보강리브(54)를 결합시키고, 이를 통해 상기 어퍼패널(51)과 상기 로어패널(52)을 박스형태로 결합시키는 단계이다.In the third step, the upper reinforcing rib 53 and the upper reinforcing rib 53 are interposed between the upper reinforcing rib 53 and the lower reinforcing rib 54 by using an adhesive member 57 (tape, bond, etc.) interposed between the upper reinforcing rib 53 and the lower reinforcing rib 54. The lower reinforcing rib 54 is coupled, and thus the upper panel 51 and the lower panel 52 are coupled in a box shape.

제 4단계는, 상기 제 3단계 이후 상기 어퍼패널(51)의 외측 및 상기 로어패널(52)의 외측에 도 4와 같이 접착성이 있는 어퍼발포부재(58)와 로어발포부재(59)를 결합시키는 단계이다.In the fourth step, after the third step, the upper foaming member 58 and the lower foaming member 59 are adhered to the outer side of the upper panel 51 and the outer side of the lower panel 52 as shown in FIG. 4. It is the step of combining.

상기 어퍼발포부재(58)와 상기 로어발포부재(59)는 자체적으로 접착성을 구비하고 있기 때문에 별도의 접착부재를 사용하지 않고 상기 어퍼돌기물(55) 및 상기 로어돌기물(56)에 결합시킬 수 있는 구조이다.Since the upper foam member 58 and the lower foam member 59 are self-adhesive, they are coupled to the upper protrusion 55 and the lower protrusion 56 without using a separate adhesive member. It is a structure that can be done.

제 5단계는, 도 5와 같이 상기 로어발포부재(59)가 상기 프론트로어멤버(13)의 내부공간에 수용되도록 박스형태로 결합된 상기 로어패널(52)을 상기 프론트로어멤버(13)속으로 삽입시켜 끼우고, 이후에 상기 어퍼발포부재(58)가 프론트어퍼멤버(11)의 내부공간에 수용되도록 박스형태로 결합된 상기 어퍼패널(51)의 외측에 상기 프론트어퍼멤버(11)를 덧씌우는 단계이다.In the fifth step, as shown in FIG. 5, the lower panel 52 coupled in a box shape to be accommodated in the inner space of the front lower member 13 includes the lower panel 52 in the front lower member 13. The front upper member 11 to the outside of the upper panel 51 coupled to the box shape so that the upper foam member 58 is accommodated in the inner space of the front upper member 11. This is the overwriting step.

이에 따라, 박스형태로 결합된 상기 어퍼패널(51) 및 상기 로어패널(52)과 상기 어퍼발포부재(58) 및 상기 로어발포부재(59)는 상기 프론트어퍼멤버(11)와 상기 프론트로어멤버(13)에 의해 감싸여진 구조를 갖게 된다.Accordingly, the upper panel 51, the lower panel 52, the upper foam member 58, and the lower foam member 59, which are coupled in a box shape, are the front upper member 11 and the front lower member. It has a structure surrounded by (13).

제 6단계는, 상기 제 5단계 이후 상기 어퍼발포부재(58)와 상기 로어발포부재(59)를 제외한 상기 프론트어퍼멤버(11)와 상기 프론트로어멤버(13)의 중첩부위를 CO2 용접하여 도 6과 같이 결합시키는 단계이다.In the sixth step, after the fifth step, the overlapping portions of the front upper member 11 and the front lower member 13 except for the upper foam member 58 and the lower foam member 59 are CO 2 welded. As shown in FIG.

한편, 도 6에 도시된 미설명 도면부호 W1은 용접 결합부를 도시한 것이다.On the other hand, the non-explained reference numeral W1 shown in FIG. 6 shows a weld joint.

제 7단계는, 상기 제 6단계 이후 상기 어퍼발포부재(58)와 상기 로어발포부재(59)를 발포시켜 박스형태로 결합된 상기 어퍼패널(51) 및 상기 로어패널(52)과 상기 프론트어퍼멤버(11) 및 상기 프론트로어멤버(13)를 일체로 결합키시는 단계이며, 이를 통해 본 발명 실시예에 따른 서브프레임의 프론트멤버(10)가 제작 완료된다.In the seventh step, the upper foam member 58 and the lower foam member 59 are foamed after the sixth step, and the upper panel 51 and the lower panel 52 and the front upper are combined in a box shape. This is a step of integrally combining the member 11 and the front lower member 13, through which the front member 10 of the subframe according to the embodiment of the present invention is manufactured.

이와 같이, 제작 완료된 본 발명에 따른 서브프레임의 프론트멤버(10)는, 프론트어퍼멤버(11)와 프론트로어멤버(13)사이에 구비된 보강구조물에 의해 강도 및 강성이 크게 증대된 구조를 갖게 된다.As described above, the front member 10 of the subframe according to the present invention has a structure in which strength and rigidity are greatly increased by a reinforcing structure provided between the front upper member 11 and the front lower member 13. do.

따라서, 상기 서브프레임의 프론트멤버(10)가 오일팬(40)의 보호를 위하여 최소 한군데 이상이 절곡 성형된 절곡부(M1)를 갖추고 있더라도, 상기 절곡부(M1)로 인해 굽힘 및 비틀림 진동 발생시 변형에 의한 진동 감도가 불리한 단점 및 강도가 약한 단점을 해소할 수 있게 된다.Therefore, even when the front member 10 of the subframe has at least one bent portion M1 bent and formed to protect the oil pan 40, when bending and torsional vibration occurs due to the bent portion M1. It is possible to solve the disadvantages of the vibration sensitivity due to deformation and disadvantages of weak strength.

아울러, 본 발명의 제조방법으로 제작 완료된 상기 프론트멤버(10)는 서브프레임의 전체적인 강도 및 강성 증대에 큰 도움을 줄 수 있게 됨으로써, 차량에 대한 소비자의 신뢰도를 크게 높일 수 있는 장점도 있게 된다.In addition, the front member 10 manufactured by the manufacturing method of the present invention can greatly help increase the overall strength and rigidity of the subframe, thereby greatly increasing the consumer's confidence in the vehicle.

도 1은 본 발명에 따라 프론트어퍼멤버와 프론트로어멤버사이에 보강구조물이 있는 프론트멤버를 구비한 서브프레임의 사시도,1 is a perspective view of a subframe having a front member having a reinforcing structure between a front upper member and a front lower member according to the present invention;

도 2 내지 도 7은 발명에 따른 서브프레임 프론트멤버의 제조방법을 단계별로 설명하기 위한 도면이다.2 to 7 are diagrams for explaining step-by-step method of manufacturing a subframe front member according to the invention.

< 도면의 주요 부분에 대한 부호의 설명 ><Description of Symbols for Main Parts of Drawings>

10 - 프론트멤버 11 - 프론트어퍼멤버10-Front Member 11-Front Upper Member

13 - 프론트로어멤버 51 - 어퍼패널13-Front Lower Member 51-Upper Panel

52 - 로어패널 53 - 어퍼보강리브52-Lower Panel 53-Upper Reinforcement Rib

54 - 로어보강리브 55 - 어퍼돌기물54-Lower Reinforcement Rib 55-Upper

56 - 로어돌기물 57 - 접착부재56-Lower protrusion 57-Adhesive member

58 - 어퍼발포부재 59 - 로어발포부재58-Upper foam member 59-Lower foam member

Claims (4)

내부공간에 어퍼보강리브(53)와 로어보강리브(54)를 각각 구비한 어퍼패널(51) 및 로어패널(52)을 사출 성형하고 상기 어퍼패널(51)과 상기 로어패널(52)에 어퍼돌기물(55)과 로어돌기물(56)을 일체로 결합시키는 단계와;The upper panel 51 and the lower panel 52 each having an upper reinforcing rib 53 and a lower reinforcing rib 54 in the inner space are injection molded, and the upper panel 51 and the lower panel 52 are upper-molded. Integrally coupling the projections 55 and the lower projections 56; 상기 어퍼보강리브(53)와 상기 로어보강리브(54)를 접착부재(57)를 이용하여 박스형태로 결합시킨 상태에서 상기 어퍼패널(51)의 외측 및 상기 로어패널(52)의 외측을 각각 감싸도록 접착성이 있는 어퍼발포부재(58)와 로어발포부재(59)를 결합시키는 단계와;In the state in which the upper reinforcing rib 53 and the lower reinforcing rib 54 are coupled to each other in the form of a box using an adhesive member 57, the outer side of the upper panel 51 and the outer side of the lower panel 52 are respectively. Bonding the upper foaming member 58 and the lower foaming member 59 which are adhesive to wrap; 상기 로어발포부재(58)가 프론트로어멤버(13)의 내부공간에 수용되도록 박스형태로 결합된 상기 로어패널(52)을 상기 프론트로어멤버(13)속으로 삽입시켜 끼우고 상기 어퍼발포부재(58)가 프론트어퍼멤버(11)의 내부공간에 수용되도록 박스형태로 결합된 상기 어퍼패널(51)의 외측에 상기 프론트어퍼멤버(11)를 덧씌우는 단계와;The lower foam member 58 is inserted into the front lower member 13 by inserting the lower panel 52 coupled in a box shape so that the lower foam member 58 is accommodated in the inner space of the front lower member 13. Overlaying the front upper member (11) on an outer side of the upper panel (51) coupled in a box shape such that 58 is accommodated in the inner space of the front upper member (11); 상기 어퍼발포부재(58)와 상기 로어발포부재(59)를 발포시켜 박스형태로 결합된 상기 어퍼패널(51) 및 상기 로어패널(52)과 상기 프론트어퍼멤버(11) 및 상기 프론트로어멤버(13)를 일체로 결합키시는 단계;The upper panel 51 and the lower panel 52 and the front upper member 11 and the front lower member (180) which are combined in a box form by foaming the upper foam member 58 and the lower foam member 59 Combining 13) integrally; 를 포함하는 서브프레임 프론트멤버의 제조방법.Method of manufacturing a subframe front member comprising a. 청구항 1에 있어서, 상기 어퍼발포부재(58)와 상기 로어발포부재(59)를 발포 성형하기 전에 상기 어퍼발포부재(58)와 상기 로어발포부재(59)를 제외한 상기 프론트어퍼멤버(11)와 상기 프론트로어멤버(13)의 중첩부위를 용접하여 결합시키는 단계;The method of claim 1, wherein the front upper member 11, except for the upper foaming member 58 and the lower foaming member 59 and before the upper foaming member 58 and the lower foaming member 59 foam molding Welding and overlapping overlapping portions of the front lower member (13); 를 더 포함하는 것을 특징으로 하는 서브프레임 프론트멤버의 제조방법.The method of manufacturing a subframe front member further comprising a. 청구항 1에 있어서, 상기 어퍼보강리브(53)와 상기 로어보강리브(54)는 엑스자(Ｘ)형 단면을 갖도록 성형됨과 더불어,The upper reinforcing rib 53 and the lower reinforcing rib 54 are molded to have an X-shaped cross section, 상기 어퍼보강리브(53)의 양 끝단은 상기 어퍼패널(51)의 양 끝단을 감싸면서 헤밍 결합구조를 이루도록 성형된 것;Both ends of the upper reinforcing ribs 53 are formed to form a hemming coupling structure while covering both ends of the upper panel 51; 을 특징으로 하는 서브프레임 프론트멤버의 제조방법.Method of manufacturing a subframe front member characterized in that. 청구항 1에 있어서, 상기 어퍼돌기물(55)과 상기 로어돌기물(56)은,The method according to claim 1, wherein the upper projections 55 and the lower projections 56, 일단은 상기 어퍼패널(51)과 상기 로어패널(52)에 구비된 돌기구멍(51b,52a)으로 각각 삽입되어 상기 어퍼보강리브(53) 및 상기 로어보강리브(54)와 결합을 이루고 타단은 상기 돌기구멍(51b,52a)을 통해 상기 어퍼패널(51) 및 상기 로어패널(52)의 외측으로 돌출되도록 인서트 성형된 것;One end is inserted into the protrusion holes 51b and 52a provided in the upper panel 51 and the lower panel 52, respectively, to form an engagement with the upper reinforcing rib 53 and the lower reinforcing rib 54, and the other end is Insert-molded to protrude outward of the upper panel 51 and the lower panel 52 through the protrusion holes 51b and 52a; 을 특징으로 하는 서브프레임 프론트멤버의 제조방법.Method of manufacturing a subframe front member characterized in that.
KR1020070131773A 2007-12-15 2007-12-15 Manufacturing method of sub frame front member KR100867831B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210071166A (en) 2019-12-05 2021-06-16 서진산업 주식회사 Sub-Frame for Vehicle having Upper, Lower 2Piece Member

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990026387U (en) * 1997-12-19 1999-07-15 정몽규 Reinforcement structure of the front subframe
JP2006347464A (en) 2005-06-17 2006-12-28 Honda Motor Co Ltd Vehicle sub-frame

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990026387U (en) * 1997-12-19 1999-07-15 정몽규 Reinforcement structure of the front subframe
JP2006347464A (en) 2005-06-17 2006-12-28 Honda Motor Co Ltd Vehicle sub-frame

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210071166A (en) 2019-12-05 2021-06-16 서진산업 주식회사 Sub-Frame for Vehicle having Upper, Lower 2Piece Member

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