KR20210005334A - Suspension parts for vehicle and method of manufacturing the same - Google Patents

Suspension parts for vehicle and method of manufacturing the same Download PDF

Info

Publication number
KR20210005334A
KR20210005334A KR1020190079780A KR20190079780A KR20210005334A KR 20210005334 A KR20210005334 A KR 20210005334A KR 1020190079780 A KR1020190079780 A KR 1020190079780A KR 20190079780 A KR20190079780 A KR 20190079780A KR 20210005334 A KR20210005334 A KR 20210005334A
Authority
KR
South Korea
Prior art keywords
inner hollow
powder
bush
truss
product
Prior art date
Application number
KR1020190079780A
Other languages
Korean (ko)
Other versions
KR102676716B1 (en
Inventor
김보민
강희곤
조윤형
Original Assignee
현대자동차주식회사
기아자동차주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 현대자동차주식회사, 기아자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020190079780A priority Critical patent/KR102676716B1/en
Publication of KR20210005334A publication Critical patent/KR20210005334A/en
Application granted granted Critical
Publication of KR102676716B1 publication Critical patent/KR102676716B1/en

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00Pivoted suspension arms; Accessories thereof
    • B60G7/001Suspension arms, e.g. constructional features
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F10/00Additive manufacturing of workpieces or articles from metallic powder
    • B22F10/10Formation of a green body
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10Sintering only
    • B22F3/105Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00Pivoted suspension arms; Accessories thereof
    • B60G7/04Buffer means for limiting movement of arms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/41Elastic mounts, e.g. bushings
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/012Hollow or tubular elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/10Constructional features of arms
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/70Materials used in suspensions
    • B60G2206/71Light weight materials
    • B60G2206/7102Aluminium alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60GVEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/80Manufacturing procedures
    • B60G2206/82Joining
    • B60G2206/8209Joining by deformation
    • B60G2206/82092Joining by deformation by press-fitting
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Vehicle Body Suspensions (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The present invention relates to a vehicle suspension component and a method for manufacturing the same. According to the present invention, provided is the vehicle suspension component, in which a suspension component (1) having a body part (10) having an inner hollow (11) formed therein and a truss (20) connected to the body part (10) while positioned in the inner hollow (11) is formed of an aluminum material, so that it is possible to reduce weight and improve fuel efficiency, and in particular, sufficient strength and rigidity can be secured through the truss (20).

Description

차량용 서스펜션 부품 및 이의 제조방법{SUSPENSION PARTS FOR VEHICLE AND METHOD OF MANUFACTURING THE SAME}Vehicle suspension parts and manufacturing method thereof {SUSPENSION PARTS FOR VEHICLE AND METHOD OF MANUFACTURING THE SAME}

본 발명은 차량용 서스펜션 부품 및 이의 제조방법에 관한 것으로, 보다 상세하게는 경량화 및 강도와 강성이 향상된 차량용 서스펜션 부품 및 이의 제조방법에 관한 기술이다.The present invention relates to a vehicle suspension component and a manufacturing method thereof, and more particularly, to a vehicle suspension component with improved weight and strength and rigidity, and a method of manufacturing the same.

차량의 서스펜션(suspension)은 차축과 차체를 연결하여 주행할 때 노면에서 받는 진동 또는 충격이 차체에 직접 전달되지 않도록 함으로써, 차체나 화물의 손상을 방지하고 승차감을 좋게 하는 장치이다.The suspension of a vehicle is a device that prevents damage to the vehicle or cargo and improves ride comfort by preventing vibration or shock from the road surface from being directly transmitted to the vehicle body when driving by connecting the axle and the vehicle body.

대부분의 서스펜션 부품들은 강도 및 강성확보를 위해 스틸(steel)재질로 제작되나, 스틸재질의 서스펜션 부품은 중량이 무겁고 연비를 악화시키는 단점이 있다.Most of the suspension parts are made of steel to secure strength and rigidity, but the suspension parts made of steel are heavy and have the disadvantage of deteriorating fuel economy.

이를 극복하기 위해 알루미늄 재질의 서스펜션 부품이 개발되었고, 알루미늄 재질의 서스펜션 부품은 스틸 부품 대비 경량화에 유리한 장점은 있지만, 스틸 부품과 동등 수준의 강도 및 강성의 확보를 위해 부피가 커지면서 내부가 채워진 중실단면으로 제작됨에 따라 비용이 크게 상승하는 단점이 있다.To overcome this, aluminum suspension parts were developed, and aluminum suspension parts have advantages in weight reduction compared to steel parts, but a solid cross section filled with the inside as the volume increases to secure the same level of strength and stiffness as steel parts. There is a disadvantage that the cost increases significantly as it is manufactured.

중실단면의 알루미늄 부품의 단점을 해결하기 위해 내부가 비어있는 중공단면의 알루미늄 부품이 개발되었고, 중공단면의 알루미늄 부품은 중실단면의 알루미늄 부품과 동등 수준의 외형적 부피를 유지하면서 경량화 및 단가에 유리한 장점이 있지만, 상대적으로 강도 및 강성이 약한 단점이 있다.In order to solve the shortcomings of solid cross-section aluminum parts, hollow cross-section aluminum parts were developed, and the hollow cross-section aluminum parts maintains the same level of external volume as solid cross-section aluminum parts, and is advantageous for weight reduction and unit cost. Although there are advantages, there are disadvantages of relatively weak strength and rigidity.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진 자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.The matters described as the background art are only for enhancing an understanding of the background of the present invention, and should not be taken as acknowledging that they correspond to the prior art already known to those of ordinary skill in the art.

대한민국공개특허공보 제10-2008-0011502호Korean Patent Publication No. 10-2008-0011502

본 발명은, 내부가 비어있는 중공 폐단면 구조의 알루미늄 서스펜션 부품에서 내부의 중공부에 트러스(truss)가 형성된 차량용 서스펜션 부품으로, 중공의 폐단면 구조에 의한 경량화 및 연비향상과 트러스 구조에 의한 강도 및 강성 향상을 이룩할 수 있도록 하는 데에 그 목적이 있다.The present invention is a vehicle suspension part in which a truss is formed in a hollow part of an aluminum suspension part having a hollow closed cross-sectional structure with an empty inside. Lightweight and fuel efficiency improved by a hollow closed cross-sectional structure, and strength by a truss structure And the purpose is to achieve the rigidity improvement.

상기한 바의 목적을 달성하기 위한 본 발명 차량용 서스펜션 부품은, 외부와의 연결이 차단된 폐단면 구조의 내부중공이 내측에 형성된 몸통부; 및 상기 내부중공을 가로지르면서 몸통부에 연결되도록 형성된 트러스;를 포함하는 것을 특징으로 한다.The vehicle suspension part of the present invention for achieving the above object includes: a body having an inner hollow of a closed cross-sectional structure in which connection with the outside is blocked; And a truss formed to be connected to the body while crossing the inner hollow.

상기 트러스는 내부중공의 길이방향을 따라 나선형으로 배치되면서 몸통부에 연결되도록 구성된 것을 특징으로 한다.The truss is characterized in that it is configured to be connected to the body while being arranged in a spiral along the length direction of the inner hollow.

상기 몸통부와 연결된 부시압입부를 더 포함하고; 상기 부시압입부에는 내부중공과 연결되는 연결구멍이 형성되고; 상기 연결구멍은 부시압입부에 압입 결합되는 부시에 의해 외부와의 연결이 차단되도록 밀폐되는 것을 특징으로 한다.Further comprising a bush press-fit portion connected to the body portion; A connection hole connected to the inner hollow is formed in the bush press-in part; The connection hole is characterized in that the connection to the outside is blocked by a bush that is press-fitted to the bush press-in part.

상기 몸통부와 트러스 및 부시압입부는 알루미늄재질로 형성된 것을 특징으로 한다.The body portion, the truss and the bush press-fit portion is characterized in that formed of an aluminum material.

상기 몸통부와 트러스 및 부시압입부는 알루미늄재질을 이용한 3D 프린팅 공법으로 제작되는 것을 특징으로 한다.The body part, the truss and the bush press-in part are characterized in that it is manufactured by a 3D printing method using an aluminum material.

또한 본 발명에 따른 차량용 서스펜션 부품의 제조방법은, 알루미늄 금속분말인 파우더를 도포하면서 도포된 파우더의 소정부위를 레이저로 조사해서 용융시키는 제1단계; 상기 제1단계를 반복 실행하면서 파우더를 적층시키고 레이저에 의해 용융된 용융부가 응고됨에 따라 내부중공이 형성된 몸통부와 트러스 및 부시압입부를 구비한 제품이 제작되는 제2단계; 및 상기 제2단계에서 제작된 제품에서 파우더를 제거함에 따라 완제품인 서스펜션 부품의 제작이 완료되는 제3단계;를 포함하는 것을 특징으로 한다.In addition, a method of manufacturing a vehicle suspension part according to the present invention includes: a first step of irradiating and melting a predetermined portion of the applied powder with a laser while applying the powder, which is an aluminum metal powder; A second step of laminating powder while repeatedly executing the first step and producing a product having a body having an inner hollow formed body and a truss and a bush press-fit portion as the molten portion is solidified by the laser; And a third step of completing the production of the suspension part as a finished product by removing the powder from the product manufactured in the second step.

상기 제2단계에서 파우더를 반복 도포하면서 적층시킬 때에는 지면과 제품의 외곽표면과의 사이각이 45도 이상이 되도록 적층하는 것을 특징으로 한다.When the powder is repeatedly applied and laminated in the second step, it is characterized in that it is laminated so that the angle between the ground and the outer surface of the product is 45 degrees or more.

상기 제2단계에서 트러스를 제작할 때에 트러스는 내부중공의 길이방향을 따라 나선형으로 배치되면서 몸통부에 연결되도록 제작하는 것을 특징으로 한다.When manufacturing the truss in the second step, the truss is arranged in a spiral shape along the length direction of the inner hollow and is manufactured to be connected to the body.

상기 제3단계에서 제품으로부터 파우더를 제거할 때에 제품의 외측에 존재하는 파우더는 제품의 외측방향으로 제거하고, 몸통부의 내부중공에 존재하는 파우더는 부시압입부에서 내부중공과 연결된 연결구멍을 통해서 몸통부의 외부로 제거하는 것을 특징으로 한다.When removing the powder from the product in the third step, the powder present on the outside of the product is removed in the outer direction of the product, and the powder present in the inner hollow of the body is removed through the connection hole connected to the inner hollow at the bush press-in part. It is characterized in that it is removed to the outside of the part.

상기 몸통부의 내부중공에 존재하는 파우더를 부시압입부의 연결구멍을 통해서 몸통부의 외부로 제거한 다음, 부시압입부에 부시를 압입 결합함에 따라 부시를 이용해서 연결구멍을 밀폐시키는 것을 특징으로 한다.The powder existing in the inner hollow of the body is removed to the outside of the body through the connection hole of the bush press-in part, and the bush is press-fitted to the bush press-in part, thereby sealing the connection hole using a bush.

본 발명에 따른 실시예는, 내부중공이 형성된 몸통부 및 내부중공에 위치하면서 몸통부와 연결된 트러스를 구비한 서스펜션 부품이 알루미늄 재질로 형성된 구성으로, 경량화와 연비향상을 도모할 수 있으며, 특히 트러스를 통해 충분한 강도 및 강성을 확보할 수 있는 효과가 있다.The embodiment according to the present invention is a configuration in which a body part having an inner hollow and a suspension part having a truss connected to the body part while being located in the inner hollow is formed of aluminum, and it is possible to reduce weight and improve fuel efficiency. There is an effect that can secure sufficient strength and rigidity through.

또한, 본 발명에 따른 실시예는 내부중공에 형성된 다수개의 트러스가 일체로 연결된 구조이고, 특히 내부중공의 길이방향을 따라 나선형으로 배치되면서 몸통부에 연결된 구성으로, 이를 통해 하중 분산효과의 극대화 및 몸통부의 전체 구간에 걸쳐서 충분한 강도 및 강성을 확보할 수 있는 효과가 있다.In addition, the embodiment according to the present invention is a structure in which a plurality of trusses formed in the inner hollow are integrally connected, and in particular, a configuration connected to the body while being arranged in a spiral along the length direction of the inner hollow, thereby maximizing the load distribution effect and There is an effect of securing sufficient strength and stiffness over the entire section of the body.

또한, 본 발명에 따른 서스펜션 부품은 3D 프린팅 공법으로 제작되고, 3D 프린팅 공법으로 제작시 용융금속의 흘러내림을 방지하기 위한 서포트라는 별도의 코어부재를 사용하지 않는 구성으로, 이를 통해 비용절감 및 제작공정의 축소를 도모할 수 있는 효과가 있다.In addition, the suspension part according to the present invention is manufactured by the 3D printing method and does not use a separate core member called a support for preventing the flow of molten metal when manufactured by the 3D printing method, thereby reducing costs and manufacturing There is an effect that can reduce the process.

도 1은 본 발명에 따른 차량용 서스펜션 부품의 평면도,
도 2는 도 1의 내부구조를 보여주기 위한 평단면도,
도 3은 도 1의 측면도,
도 4는 도 1에서 부시압입부의 사시도,
도 5는 도 1에서 X부의 부분 절개도,
도 6은 도 1의 Ⅰ-Ⅰ선 단면도,
도 7은 본 발명에 따른 차량용 서스펜션 부품의 제조과정을 설명하기 위한 도면이다.
1 is a plan view of a vehicle suspension part according to the present invention,
2 is a plan cross-sectional view for showing the internal structure of FIG. 1;
Figure 3 is a side view of Figure 1,
Figure 4 is a perspective view of the bush press-in portion in Figure 1,
5 is a partial cutaway view of the X part in FIG. 1,
6 is a cross-sectional view taken along line I-I of FIG. 1;
7 is a view for explaining a manufacturing process of a vehicle suspension part according to the present invention.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 일실시예에 따른 차량용 서스펜션 부품 및 이의 제조방법에 대해 살펴보기로 한다.Hereinafter, a vehicle suspension component and a manufacturing method thereof according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

도 1 내지 도 6에는 본 발명에 따른 차량용 서스펜션 부품의 일예로서 서스펜션 암이 도시되어 있고, 도 7에는 본 발명에 따른 차량용 서스펜션 부품의 제조과정을 설명하기 위한 도면이 도시되어 있다.1 to 6 illustrate a suspension arm as an example of a vehicle suspension component according to the present invention, and FIG. 7 is a diagram illustrating a manufacturing process of a vehicle suspension component according to the present invention.

본 발명에 따른 차량용 서스펜션 부품(1)은 알루미늄 재질을 이용해서 형성되는 것으로 도시된 바와 같이 외부와의 연결이 차단된 폐단면 구조의 내부중공(11)이 내측에 형성된 몸통부(10), 및 상기 내부중공(11)을 가로지르면서 몸통부(10)에 연결되도록 형성된 트러스(20, truss)를 포함한다.The vehicle suspension part 1 according to the present invention is formed of an aluminum material, as shown, a body portion 10 having an inner hollow 11 having a closed cross-sectional structure blocked from being connected to the outside, and It includes a truss 20 (truss) formed to be connected to the body portion 10 while crossing the inner hollow (11).

본 발명에 따라 서스펜션 부품(1)이 알루미늄 재질로 형성됨에 따라 스틸재질 대비 중량이 가볍고 연비에 유리한 장점이 있다.As the suspension part 1 is formed of an aluminum material according to the present invention, the weight is light compared to the steel material, and there is an advantage in fuel economy.

또한, 서스펜션 부품(1)이 알루미늄 재질로 형성되면서 내부가 비어있는 폐단면 구조의 내부중공(11)으로 형성됨에 따라 중량을 한층 더 줄일 수 있는 장점이 있다.In addition, as the suspension part 1 is formed of an aluminum material and is formed as an inner hollow 11 having a closed cross-sectional structure, the weight can be further reduced.

또한, 내부중공(11)으로 형성됨에 따라 강도 강성이 약해지는 단점은 내부중공(11)에 구비된 트러스(20)를 통해 충분히 보강할 수 있게 됨에 따라 내부중공(11)을 구비한 알루미늄 재질 서스펜션 부품(1)일지라도 트러스(20)를 통해 충분한 강도 및 강성을 확보할 수 있는 장점도 있다.In addition, the disadvantage of weakening the strength and stiffness due to the formation of the inner hollow 11 is that the aluminum suspension with the inner hollow 11 can be sufficiently reinforced through the truss 20 provided in the inner hollow 11 Even the part 1 has the advantage of securing sufficient strength and rigidity through the truss 20.

서스펜션 부품(1)의 내부중공(11)에 형성되는 트러스(20)는 일자형 막대모양으로 다수개의 트러스(20)가 일체로 연결된 구조이고, 특히 내부중공(11)의 길이방향(도 5의 화살표 M1)을 따라 나선형으로 배치되면서 몸통부(10)에 연결된 구성으로, 이를 통해 하중 분산효과의 극대화 및 몸통부(10)의 전체 구간에 걸쳐서 충분한 강도 및 강성을 확보할 수 있게 된다.The truss 20 formed in the inner hollow 11 of the suspension part 1 is a structure in which a plurality of trusses 20 are integrally connected in a straight bar shape, and in particular, the longitudinal direction of the inner hollow 11 (arrow in Fig. 5) It is arranged in a spiral along M1) and connected to the body part 10, and through this, it is possible to maximize the load distribution effect and secure sufficient strength and rigidity over the entire section of the body part 10.

본 발명에 따른 서스펜션 부품(1)은 몸통부(10)와 연결된 부시압입부(30)를 더 포함한다.The suspension component 1 according to the present invention further includes a bush press-fit portion 30 connected to the trunk portion 10.

부시압입부(30)는 원통형 파이프모양으로 형성되며, 내측의 빈공간에는 부시(40)가 압입되어서 결합된다.The bush press-fit portion 30 is formed in the shape of a cylindrical pipe, and the bush 40 is press-fitted into an inner empty space to be coupled.

부시압입부(30)에는 몸통부(10)의 내부중공(11)과 연결되는 연결구멍(31)이 형성되는데, 연결구멍(31)은 부시압입부(30)에 압입 결합되는 부시(40)에 의해서 막혀서 밀폐되며, 연결구멍(31)이 부시(40)에 의해서 밀폐되면 몸통부(10)의 내부중공(11)은 외부와의 연결이 완전히 차단된 폐공간이 됨에 따라 외부의 이물질이 내부중공(11)으로 침입되는 현상을 방지할 수 있게 된다.The bush press-fit portion 30 is formed with a connection hole 31 connected to the inner hollow 11 of the trunk portion 10, the connection hole 31 is a bush 40 that is press-fit to the bush press-fit portion 30 When the connection hole 31 is closed by the bush 40, the inner hollow 11 of the body 10 becomes a closed space completely blocked by the connection with the outside. It is possible to prevent the phenomenon of intrusion into the hollow (11).

몸통부(10)의 내부에 내부중공(11)만이 형성된 서스펜션 부품(1)은 일반적인 알루미늄 주조공법 또는 단조공법으로도 제작이 가능하지만, 본 발명에 따라 내부중공(11)에 트러스(20)가 구비된 서스펜션 부품(1)은 일반적인 알루미늄 주조공법 또는 단조공법으로는 제작이 불가능하며, 이에 따라 본 발명에 따른 서스펜션 부품(1)은 3D 프린팅 공법으로 제작되는 바, 특히 3D 프린팅 공법 중에서도 분말적층 용융방식(PBF; Power Bed Fusion)으로 제작되는 것이 특징이다.The suspension part 1 in which only the inner hollow 11 is formed inside the body 10 can be manufactured by a general aluminum casting method or a forging method, but according to the present invention, the truss 20 is formed in the inner hollow 11 The provided suspension part 1 cannot be manufactured by a general aluminum casting method or a forging method, and accordingly, the suspension part 1 according to the present invention is manufactured by a 3D printing method.In particular, among the 3D printing method, powder lamination melting It is characterized by being manufactured in a method (PBF; Power Bed Fusion).

본 발명에 따른 서스펜션 부품(1)의 제조방법에 대해서는 도 7을 참고해서 설명한다.A method of manufacturing the suspension part 1 according to the present invention will be described with reference to FIG. 7.

먼저, 도 7의 (A)와 같이 알루미늄 금속분말인 파우더(110)를 소정두께로 도포하면서 도포된 파우더(110)의 소정부위를 레이저로 조사해서 용융부(120)를 형성하는 제1단계를 실시한다.First, the first step of forming the molten part 120 by irradiating a predetermined part of the applied powder 110 with a laser while applying the powder 110, which is an aluminum metal powder to a predetermined thickness, as shown in FIG. 7A. Conduct.

제2단계는 제1단계를 반복 실행하면서 파우더(110)를 일정높이로 적층(후술하는 제품의 높이까지 적층)시키는 공정으로, 파우더(110)를 일정높이로 적층시킬 때에 용융부(120)가 응고되고, 응고된 용융부(120)에 의해서 내부중공(11)이 형성된 몸통부(10)와 트러스(20) 및 부시압입부(30)를 구비한 제품(130)이 제작된다.The second step is a process of stacking the powder 110 to a certain height (stacking up to the height of a product to be described later) while repeating the first step. When the powder 110 is stacked to a certain height, the melting part 120 A product 130 having a body portion 10 having an inner hollow 11 formed by the solidified and solidified melting portion 120 and a truss 20 and a bush press-fit portion 30 is manufactured.

도 7에서 (B), (C)공정이 제2단계에 해당된다.In FIG. 7, processes (B) and (C) correspond to the second step.

제2단계에서 제품(130)이 제작될 때에 제품(130)의 외측 표면과 몸통부(10)의 내부중공(11)에는 파우더(110)가 존재하게 되는 바, 제3단계는 제2단계에서 제작된 제품(130)에서 파우더(110)를 제거하는 공정으로, 제품(130)에서 파우더(110)를 제거함에 따라 완제품인 서스펜션 부품(1)의 제작을 완료할 수 있게 된다.When the product 130 is manufactured in the second step, the powder 110 is present in the outer surface of the product 130 and the inner hollow 11 of the body portion 10, and the third step is performed in the second step. As a process of removing the powder 110 from the manufactured product 130, as the powder 110 is removed from the product 130, it is possible to complete the manufacturing of the suspension part 1 as a finished product.

도 7에서 (D)공정이 제3단계이다.In FIG. 7, step (D) is the third step.

제3단계에서 제품(130)으로부터 파우더(110)를 제거할 때에 제품(130)의 외측 표면에 존재하는 파우더(110)는 제품(130)의 외측방향으로 제거하고, 몸통부(10)의 내부중공(11)에 존재하는 파우더(110)는 부시압입부(30)에서 내부중공(11)과 연결된 연결구멍(31)을 통해서 몸통부(10)의 외부로 제거하게 된다.When removing the powder 110 from the product 130 in the third step, the powder 110 present on the outer surface of the product 130 is removed in the outer direction of the product 130, and the inside of the body portion 10 The powder 110 present in the hollow 11 is removed from the bush press-fit portion 30 to the outside of the body portion 10 through a connection hole 31 connected to the inner hollow 11.

이와 같이 제품(130)에서 제거된 파우더(110)는 다시 수거해서 재활용하게 된다.In this way, the powder 110 removed from the product 130 is collected again and recycled.

몸통부(10)의 내부중공(11)에 존재하는 파우더(110)를 부시압입부(30)의 연결구멍(31)을 통해서 몸통부(10)의 외부로 제거한 다음에는 부시압입부(30)에 부시(40)를 압입해서 결합하게 되며, 부시압입부(30)에 결합된 부시(40)에 의해서 연결구멍(31)이 밀폐되고, 연결구멍(31)이 부시(40)에 의해서 밀폐되면 몸통부(10)의 내부중공(11)은 외부와의 연결이 완전히 차단된 폐공간이 됨에 따라 외부의 이물질이 내부중공(11)으로 침입되는 현상을 방지할 수 있게 된다.After removing the powder 110 present in the inner hollow 11 of the trunk portion 10 to the outside of the trunk portion 10 through the connection hole 31 of the bush pressing portion 30, the bush pressing portion 30 When the bush 40 is press-fitted into and coupled, the connection hole 31 is sealed by the bush 40 coupled to the bush press-in part 30, and the connection hole 31 is sealed by the bush 40 As the inner hollow 11 of the trunk portion 10 becomes a closed space completely blocked from being connected to the outside, it is possible to prevent foreign substances from entering the inner hollow 11.

한편, 제2단계에서 파우더(110)를 반복 도포하면서 일정높이로 적층(후술하는 제품(130)의 높이(H1)까지 적층)시킬 때에는, 아래층의 용융부(120)의 용융금속이 완전히 응고되기 전에 위층의 용융부(120)가 쌓여지게 되며, 이때 지면(200)과 제품(130)의 외곽표면과의 사이각(Z1)이 소정 각도(대략 45도가 된다)보다 작으면 용융부(120)의 용융금속이 완전히 응고되기 전에 흘러내리는 현상이 발생할 수 있다.On the other hand, in the second step, when the powder 110 is repeatedly applied and laminated to a certain height (stacked up to the height (H1) of the product 130 to be described later), the molten metal of the molten part 120 of the lower layer is completely solidified. Previously, the upper layer of the melting part 120 is piled up, and at this time, if the angle Z1 between the ground 200 and the outer surface of the product 130 is less than a predetermined angle (approximately 45 degrees), the melting part 120 Flowing off may occur before the molten metal is completely solidified.

용융금속의 흘러내림이 발생하면 제품(130)의 형상 제작이 불가능한 바, 따라서 용융금속의 흘러내림을 방지하기 위해 필요에 따라 제품(130)의 외곽표면쪽에 서포트라는 별도의 코어부재를 삽입한 상태로 파우더(110)를 적층시키기도 한다.When the molten metal flows down, it is impossible to make the shape of the product 130. Therefore, a separate core member called a support is inserted into the outer surface of the product 130 as necessary to prevent the molten metal flow down. The furnace powder 110 is also laminated.

하지만, 서포트라는 별도의 코어부재는 비용이 비싸고, 특히 제품의 형상이 복잡한 경우 제품에서 서포트를 제거하는 작업이 쉽지 않은 단점이 있다.However, a separate core member called a support is expensive, and in particular, when the shape of the product is complex, it is not easy to remove the support from the product.

따라서, 본 발명에 따른 실시예는 제2단계에서 파우더(110)를 반복 도포하면서 일정높이로 적층시킬 때에 지면(200)과 제품(130)의 외곽표면과의 사이각(Z1)을 45도 이상이 되도록 적층하는 것이 특징으로, 이를 통해 파우더(110)의 적층시 용융부(120)의 용융금속의 흘러내림을 방지할 수 있고, 특히 서포트라는 별도의 코어부재를 사용하지 않음에 따라 비용을 크게 절약할 수 있는 장점이 있다.Therefore, in the embodiment according to the present invention, when the powder 110 is repeatedly applied and stacked to a predetermined height in the second step, the angle Z1 between the ground 200 and the outer surface of the product 130 is 45 degrees or more. It is characterized in that it is stacked so that it is possible to prevent the molten metal from flowing down in the molten part 120 when the powder 110 is stacked, and in particular, the cost is increased as a separate core member called a support is not used. There is an advantage that can be saved.

이상 설명한 바와 같이 본 발명에 따른 실시예는, 내부중공(11)이 형성된 몸통부(10) 및 내부중공(11)에 위치하면서 몸통부(10)와 연결된 트러스(20)를 구비한 서스펜션 부품(1)이 알루미늄 재질로 형성된 구성으로, 경량화와 연비향상을 도모할 수 있으며, 특히 트러스(20)를 통해 충분한 강도 및 강성을 확보할 수 있는 장점이 있다.As described above, in the embodiment according to the present invention, a suspension part provided with a truss 20 connected to the body 10 while being positioned in the body 10 and the internal hollow 11 in which the inner hollow 11 is formed ( 1) With the configuration formed of this aluminum material, it is possible to reduce weight and improve fuel efficiency, and in particular, there is an advantage of securing sufficient strength and rigidity through the truss 20.

또한, 본 발명에 따른 실시예는 내부중공(11)에 형성된 다수개의 트러스(20)가 일체로 연결된 구조이고, 특히 내부중공(11)의 길이방향을 따라 나선형으로 배치되면서 몸통부(10)에 연결된 구성으로, 이를 통해 하중 분산효과의 극대화 및 몸통부(10)의 전체 구간에 걸쳐서 충분한 강도 및 강성을 확보할 수 있는 장점이 있다.In addition, the embodiment according to the present invention is a structure in which a plurality of trusses 20 formed in the inner hollow 11 are integrally connected, and in particular, while being spirally arranged along the length direction of the inner hollow 11, the body portion 10 As a connected configuration, there is an advantage of maximizing a load distribution effect and securing sufficient strength and stiffness over the entire section of the body portion 10 through this.

또한, 본 발명에 따른 서스펜션 부품(1)은 3D 프린팅 공법으로 제작되고, 3D 프린팅 공법으로 제작시 용융금속의 흘러내림을 방지하기 위한 서포트라는 별도의 코어부재를 사용하지 않는 구성으로, 이를 통해 비용절감 및 제작공정의 축소를 도모할 수 있는 장점이 있다.In addition, the suspension part 1 according to the present invention is manufactured by the 3D printing method, and when manufactured by the 3D printing method, it is a configuration that does not use a separate core member called a support for preventing the flow of molten metal. There is an advantage that can achieve reduction and reduction in manufacturing process.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.Although the present invention has been illustrated and described with reference to specific embodiments, it is understood in the art that the present invention can be variously improved and changed within the scope of the technical spirit of the present invention provided by the following claims. It will be obvious to a person of ordinary knowledge.

1 - 서스펜션 부품 10 - 몸통부
11 - 내부중공 20 - 트러스
30 - 부시압입부 31 - 연결구멍
40 - 부시 110 - 파우더
120 - 용융부 130 - 제품
200 - 지면
1-Suspension part 10-Body part
11-Inner hollow 20-Truss
30-Bush press fitting 31-Connection hole
40-Bush 110-Powder
120-melting part 130-product
200-ground

Claims (10)

외부와의 연결이 차단된 폐단면 구조의 내부중공이 내측에 형성된 몸통부; 및
상기 내부중공을 가로지르면서 몸통부에 연결되도록 형성된 트러스;를 포함하는 것을 특징으로 하는 차량용 서스펜션 부품.
A trunk portion having an inner hollow of a closed cross-sectional structure in which connection with the outside is blocked; And
And a truss formed to be connected to the body while crossing the inner hollow.
청구항 1에 있어서,
상기 트러스는 내부중공의 길이방향을 따라 나선형으로 배치되면서 몸통부에 연결되도록 구성된 것을 특징으로 하는 차량용 서스펜션 부품.
The method according to claim 1,
The truss is a vehicle suspension component, characterized in that configured to be connected to the body while being arranged in a spiral along the length direction of the inner hollow.
청구항 1에 있어서,
상기 몸통부와 연결된 부시압입부를 더 포함하고;
상기 부시압입부에는 내부중공과 연결되는 연결구멍이 형성되고;
상기 연결구멍은 부시압입부에 압입 결합되는 부시에 의해 외부와의 연결이 차단되도록 밀폐되는 것을 특징으로 하는 차량용 서스펜션 부품.
The method according to claim 1,
Further comprising a bush press-fit portion connected to the body portion;
A connection hole connected to the inner hollow is formed in the bush press-in portion;
The connection hole is a vehicle suspension component, characterized in that the sealing so that the connection to the outside is blocked by a bush that is press-fitted to the bush press-in part.
청구항 3에 있어서,
상기 몸통부와 트러스 및 부시압입부는 알루미늄재질로 형성된 것을 특징으로 하는 차량용 서스펜션 부품.
The method of claim 3,
The body part, the truss and the bush press-fit part for a vehicle, characterized in that formed of an aluminum material.
청구항 3에 있어서,
상기 몸통부와 트러스 및 부시압입부는 알루미늄재질을 이용한 3D 프린팅 공법으로 제작되는 것을 특징으로 하는 차량용 서스펜션 부품.
The method of claim 3,
The body part, the truss and the bush press-in part is manufactured by a 3D printing method using an aluminum material.
청구항 1 또는 청구항 3 중 어느 하나의 차량용 서스펜션 부품을 제조하기 위한 방법으로,
알루미늄 금속분말인 파우더를 도포하면서 도포된 파우더의 소정부위를 레이저로 조사해서 용융시키는 제1단계;
상기 제1단계를 반복 실행하면서 파우더를 적층시키고 레이저에 의해 용융된 용융부가 응고됨에 따라 내부중공이 형성된 몸통부와 트러스 및 부시압입부를 구비한 제품이 제작되는 제2단계; 및
상기 제2단계에서 제작된 제품에서 파우더를 제거함에 따라 완제품인 서스펜션 부품의 제작이 완료되는 제3단계;를 포함하는 것을 특징으로 하는 차량용 서스펜션 부품의 제조방법.
A method for manufacturing a vehicle suspension part according to any one of claims 1 or 3,
A first step of melting by irradiating a predetermined portion of the applied powder with a laser while applying powder, which is an aluminum metal powder;
A second step of laminating powder while repeatedly executing the first step and producing a product having a body having an inner hollow formed body and a truss and a bush press-fit portion as the molten portion is solidified by the laser; And
And a third step of completing the production of the suspension part as a finished product by removing the powder from the product produced in the second step.
청구항 6에 있어서,
상기 제2단계에서 파우더를 반복 도포하면서 적층시킬 때에는 지면과 제품의 외곽표면과의 사이각이 45도 이상이 되도록 적층하는 것을 특징으로 하는 차량용 서스펜션 부품의 제조방법.
The method of claim 6,
When the powder is repeatedly applied and laminated in the second step, the method of manufacturing a vehicle suspension part is laminated so that the angle between the ground and the outer surface of the product is 45 degrees or more.
청구항 6에 있어서,
상기 제2단계에서 트러스를 제작할 때에 트러스는 내부중공의 길이방향을 따라 나선형으로 배치되면서 몸통부에 연결되도록 제작하는 것을 특징으로 하는 차량용 서스펜션 부품.
The method of claim 6,
When manufacturing the truss in the second step, the truss is arranged in a spiral shape along the longitudinal direction of the inner hollow and is manufactured to be connected to the body.
청구항 6에 있어서,
상기 제3단계에서 제품으로부터 파우더를 제거할 때에 제품의 외측에 존재하는 파우더는 제품의 외측방향으로 제거하고, 몸통부의 내부중공에 존재하는 파우더는 부시압입부에서 내부중공과 연결된 연결구멍을 통해서 몸통부의 외부로 제거하는 것을 특징으로 하는 차량용 서스펜션 부품의 제조방법.
The method of claim 6,
When removing the powder from the product in the third step, the powder present on the outside of the product is removed in the outer direction of the product, and the powder present in the inner hollow of the body is removed through the connection hole connected to the inner hollow in the bush press A method of manufacturing a vehicle suspension part, characterized in that the part is removed to the outside.
청구항 9에 있어서,
상기 몸통부의 내부중공에 존재하는 파우더를 부시압입부의 연결구멍을 통해서 몸통부의 외부로 제거한 다음, 부시압입부에 부시를 압입 결합함에 따라 부시를 이용해서 연결구멍을 밀폐시키는 것을 특징으로 하는 차량용 서스펜션 부품의 제조방법.
The method of claim 9,
A vehicle suspension part, characterized in that the powder existing in the inner hollow of the body is removed to the outside of the body through the connection hole of the bush press-in part, and then the connection hole is sealed using a bush by press-fitting the bush to the bush press-in part. Method of manufacturing.
KR1020190079780A 2019-07-03 2019-07-03 Suspension parts for vehicle and method of manufacturing the same KR102676716B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020190079780A KR102676716B1 (en) 2019-07-03 2019-07-03 Suspension parts for vehicle and method of manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020190079780A KR102676716B1 (en) 2019-07-03 2019-07-03 Suspension parts for vehicle and method of manufacturing the same

Publications (2)

Publication Number Publication Date
KR20210005334A true KR20210005334A (en) 2021-01-14
KR102676716B1 KR102676716B1 (en) 2024-06-19

Family

ID=74142041

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020190079780A KR102676716B1 (en) 2019-07-03 2019-07-03 Suspension parts for vehicle and method of manufacturing the same

Country Status (1)

Country Link
KR (1) KR102676716B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021153966A1 (en) 2020-01-31 2021-08-05 주식회사 엘지에너지솔루션 Method for manufacturing separator-integrated electrode comprising inorganic layers with multilayer structure, and separator-integrated electrode manufactured thereby

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080011502A (en) 2006-07-31 2008-02-05 주식회사동양강철 The manufacturing method of the suspension arm for the rear suspension of a car, and the same made by the above method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000035029A (en) * 1998-07-16 2000-02-02 Tokai Rubber Ind Ltd Bush mounting member
JP4639726B2 (en) 2004-09-29 2011-02-23 日産自動車株式会社 Preliminary molded body for hydraulic molding, hydraulic molding method and hydraulic molded product
JP6747337B2 (en) * 2017-02-24 2020-08-26 株式会社デンソー Honeycomb structure molding die and method for manufacturing honeycomb structure molding die

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20080011502A (en) 2006-07-31 2008-02-05 주식회사동양강철 The manufacturing method of the suspension arm for the rear suspension of a car, and the same made by the above method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021153966A1 (en) 2020-01-31 2021-08-05 주식회사 엘지에너지솔루션 Method for manufacturing separator-integrated electrode comprising inorganic layers with multilayer structure, and separator-integrated electrode manufactured thereby

Also Published As

Publication number Publication date
KR102676716B1 (en) 2024-06-19

Similar Documents

Publication Publication Date Title
EP2729347B1 (en) Crossmember having an integrated support for a drive
US8814187B2 (en) Transverse link, and method for producing a transverse link
CN105416404B (en) A kind of vehicle body rear part structure
EP2599650B1 (en) Motor vehicle undercarriage component
CN202358193U (en) Light-weight bus frame
DE102014220443A1 (en) Handlebar for connecting a vehicle wheel to a vehicle and vehicle suspension
EP3310594B1 (en) Link for a wheel suspension
EP3378739B1 (en) Structural component of an automobile frame with an integrated storage container
KR20210005334A (en) Suspension parts for vehicle and method of manufacturing the same
CN205255933U (en) Crossbeam and torsion beam assembly
CN206938858U (en) Subframe and automobile
WO2018163987A1 (en) Front axle beam
US20170120707A1 (en) Spring Bracket Arm
CN206520654U (en) A kind of new automobile rear sub-frame
DE102015100950A1 (en) bicycle frame
CN210149420U (en) Turn round roof beam after lightweight
US2344378A (en) Chassis, especially for motor vehicles
CN108238105A (en) A kind of aluminum alloy auxiliary body frame structure for automotive
CN207535990U (en) Mixture of multi-elements designs car body
EP1619054B1 (en) Single-shell front lateral arm
CN204801979U (en) Forged steel skeleton and cross -country motorcycle of mechanical tubes convolution reinforcing frame
CN104648432B (en) The bogie and its framework of high-speed train
DE102014220444A1 (en) Handlebar for connecting a vehicle wheel to a vehicle and vehicle suspension
CN101508312B (en) Welded joint and method for forming the joint
EP3142869B1 (en) Steering unit and method for producing a steering unit

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant