KR20100073714A - Manufacturing method of a light weight aluminium wheel and an aluminium wheel thereof - Google Patents

Manufacturing method of a light weight aluminium wheel and an aluminium wheel thereof Download PDF

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KR20100073714A
KR20100073714A KR1020080132462A KR20080132462A KR20100073714A KR 20100073714 A KR20100073714 A KR 20100073714A KR 1020080132462 A KR1020080132462 A KR 1020080132462A KR 20080132462 A KR20080132462 A KR 20080132462A KR 20100073714 A KR20100073714 A KR 20100073714A
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South Korea
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cfrp
aluminum wheel
wheel
fabric
molded body
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KR1020080132462A
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Korean (ko)
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KR101017930B1 (en
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박재필
김원영
김종덕
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주식회사 대유신소재
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/20Layered products comprising a layer of metal comprising aluminium or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/06Fibrous reinforcements only
    • B29C70/10Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
    • B29C70/16Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length
    • B29C70/22Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure
    • B29C70/222Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres using fibres of substantial or continuous length oriented in at least two directions forming a two dimensional structure the structure being shaped to form a three dimensional configuration
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28Shaping operations therefor
    • B29C70/30Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/304In-plane lamination by juxtaposing or interleaving of plies, e.g. scarf joining
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00Layered products comprising a layer of metal
    • B32B15/14Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2311/00Metals, their alloys or their compounds
    • B32B2311/24Aluminium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2605/00Vehicles
    • B32B2605/08Cars

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Textile Engineering (AREA)
  • Composite Materials (AREA)
  • Ceramic Engineering (AREA)
  • Woven Fabrics (AREA)
  • Moulding By Coating Moulds (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE: A method for manufacturing light weight aluminium wheel is provided to minimize damage of wheel in accident with improved fuel ratio and driving performance. CONSTITUTION: A method for manufacturing light weight aluminium wheel comprises: a step of determining laminate arrange of carbon fiber based on wheel characteristic; a step of laminating CFRP fabric papers in a multi-stage; a step of hardening CFRP fabric paper at high temperature and high pressure; a step of removing impurities and enhancing surface area; and a step of fusing the aluminium wheel and CFRP mold body integrally.

Description

경량화 알루미늄 휠의 제조방법 및 그 알루미늄 휠{manufacturing method of a light weight aluminium wheel and an aluminium wheel thereof}Manufacture method of a light weight aluminum wheel and its aluminum wheel

본 발명은 자동차에 타이어를 고정하기 위해 이용되는 휠에 관한 것으로, 더욱 상세하게는 기계적인 강도가 우수하면서도 중량이 최소화되도록 한 경량화 알루미늄 휠의 제조방법 및 그 알루미늄 휠에 관한 것이다.The present invention relates to a wheel used for fixing a tire to an automobile, and more particularly, to a method for manufacturing a lightweight aluminum wheel and excellent weight and excellent mechanical strength and aluminum wheel.

일반적으로, 자동차의 바퀴는 공기나 질소가 충진되는 고무 재질의 타이어의 중앙부에 금속재의 휠을 결합하여 차축에 견고하게 결합되도록 하고 있는데, 특히 근래에는 디자인이 우수하고 중량이 낮아 차량의 연비가 향상되며, 냉각 효율이 우수한 알루미늄 휠이 각광받고 있는 실정이다.In general, the wheels of automobiles are combined with metal wheels in the center of rubber tires filled with air or nitrogen to be firmly coupled to the axles. In addition, the aluminum wheel with excellent cooling efficiency is in the spotlight.

이러한 알루미늄휠은 통상적으로 타이어가 결합되는 원통형의 림의 일측면 중앙부에 차축에 결합되는 허브를 형성하여 타이어가 차량에 견고하게 고정되도록 하고 있다.Such aluminum wheels typically form a hub coupled to the axle at the central portion of one side of the cylindrical rim to which the tire is coupled so that the tire is firmly fixed to the vehicle.

또한, 차량의 부품 중 샤시 부품은 차량의 성능과 밀접한 관계를 갖고 있는데, 차량이 주행할 때 샤시 부품의 무게가 1kg 감소하면 자동차의 서스펜션에 걸리는 부하 하중은 통상적으로 15kg 정도 감소되는 효과가 발생함에 따라, 샤시 부품 의 중량을 줄이기 위한 다양한 연구 개발이 이루어지고 있다.In addition, the chassis parts of the vehicle parts are closely related to the performance of the vehicle. When the weight of the chassis parts is reduced by 1 kg while the vehicle is running, the load load on the suspension of the vehicle is generally reduced by about 15 kg. Accordingly, various research and development have been made to reduce the weight of the chassis parts.

특히, 타이어가 결합되는 휠은 중량 감소를 위하여 스틸 재질에서 알루미늄 재질로 재질의 변화가 빠르게 이루어지고 있으며, 재질 변화에 따른 강도 저하를 방지하기 위한 다양한 연구가 이루어지고 있는 실정이지만, 알루미늄 재질 자체의 한계로 인해 구조 및 형상의 변경 만으로는 중량 저감에 한계가 발생하게 되고, 과도한 중량 저감은 기계적인 강도를 유발시킴에 따라 획기적인 중량 감소가 이루어지지 못하는 문제점이 있었다.In particular, the wheel to which the tire is coupled is rapidly changed from steel to aluminum in order to reduce weight, and various studies are being made to prevent strength degradation due to the change of material. Due to the limitations, only a change in the structure and shape causes a limitation in weight reduction, and excessive weight reduction causes a mechanical strength, thereby preventing a significant weight reduction.

이에, 본 발명은 상기와 같은 종래의 제반 문제점을 해소하기 위하여 안출된 것으로, 그 목적은 간단한 공정으로 기계적인 강도가 극대화되면서 중량이 저감되는 경량화 알루미늄 휠의 제조방법을 제공함에 있다.Accordingly, the present invention has been made to solve the above-mentioned conventional problems, the object of the present invention is to provide a method of manufacturing a lightweight aluminum wheel that is reduced in weight while maximizing the mechanical strength in a simple process.

또한, 본 발명의 목적은 하중이 가해지는 방향에 관계없이 CFRP 성형체의 지지 강도가 견고하게 형성되도록 함에 있다.It is also an object of the present invention to ensure that the support strength of the CFRP molded body is firmly formed regardless of the direction in which the load is applied.

또한, 본 발명의 목적은 CFRP 직물지를 다단으로 적층할 때 CFRP 직물지에 쳐짐이 발생되거나 끝단의 올이 풀리는 것이 방지되도록 함에 있다.In addition, it is an object of the present invention to prevent the occurrence of sagging or loosening of the end of the CFRP fabric paper when laminating the CFRP fabric paper in multiple stages.

또한, 본 발명의 목적은 CFRP 성형체의 두께가 균일하게 형성됨과 동시에 기계적인 강도가 균일하게 형성되도록 함에 있다.In addition, an object of the present invention is to uniformly form the thickness of the CFRP molded body at the same time the mechanical strength is formed uniformly.

또한, 본 발명의 목적은 알루미늄휠과 CFRP 성형체의 접착력이 향상되도록 함에 있다.In addition, an object of the present invention is to improve the adhesion between the aluminum wheel and the CFRP molded body.

한편, 본 발명의 목적은 간단한 구조로 제작이 간편하면서도 기계적인 강도가 극대화되고 중량이 저감되는 경량화 알루미늄 휠을 제공함에 있다.On the other hand, it is an object of the present invention to provide a lightweight aluminum wheel that is easy to manufacture with a simple structure while maximizing the mechanical strength and reduced weight.

상기와 같은 목적을 달성하기 위하여, 본 발명은 탄소섬유가 평면상의 CFRP 직물지 형태로 직조되되, 휠의 특성에 따라 탄소섬유의 적층 배열을 결정하는 CFRP 적층배열 결정단계; CFRP 직물지를 재단하고 재단된 CFRP직물지를 다단으로 적층하여 일체로 형성하는 CFRP 재단 및 적층단계; 다단으로 적층된 CFRP 직물지를 고온 및 고압상태에서 경화시키는 CFRP 경화단계; 알루미늄휠과 상기 CFRP 경화단계에서 경화된 CFRP 성형체의 접착성을 향상시키도록 불순물을 제거하고 표면적을 증가시키는 표면처리단계; 알루미늄휠과 CFRP 성형체를 일체로 접합시키는 접합단계;를 거치는 것을 특징으로 한다.In order to achieve the above object, the present invention is a carbon fiber weave in the form of CFRP woven paper on the plane, CFRP laminated arrangement determining step of determining the stacking arrangement of carbon fibers according to the characteristics of the wheel; CFRP cutting and laminating step of cutting the CFRP fabric paper and laminated integrally by cutting the CFRP fabric paper in multiple stages; CFRP curing step of curing the multi-stacked CFRP fabric paper at high temperature and high pressure; A surface treatment step of removing impurities and increasing surface area to improve adhesion between the aluminum wheel and the CFRP molded body cured in the CFRP curing step; Characterized in that through the; bonding step of bonding the aluminum wheel and the CFRP molded body integrally.

또한, 상기 CFRP 적층배열 결정단계;는 탄소섬유가 각각 0°및 90°방향으로 엇갈리게 직조된 제1직물지와, 탄소섬유가 상기 제1직물지와 45°위상차를 가지면서 엇갈리게 직조된 제2직물지가 순차적으로 교번되어 적층되도록 하는 것을 특징으로 한다.In addition, the CFRP laminated arrangement determination step; the first fabric paper weaving the carbon fibers staggered in the 0 ° and 90 ° direction, respectively, and the second fabric paper weave staggered while the carbon fiber has a 45 ° phase difference with the first fabric paper It is characterized in that to be sequentially stacked alternately.

또한, 상기 CFRP 적층단계;는 원통형의 성형 금형의 외측에 다수의 CFRP 직물지를 순차적으로 감아 다단으로 적층된 일체의 원통형으로 성형되도록 하되, 상기 CFRP직물지의 일측 끝단과 타측 끝단이 서로 겹쳐지도록 하는 것을 특징으로 한다.In addition, the CFRP laminating step; while winding a plurality of CFRP woven paper sequentially on the outside of the cylindrical molding die to be molded into an integral cylindrical laminated in multiple stages, so that one end and the other end of the CFRP fabric paper overlap each other It features.

또한, 상기 CFRP직물지의 겹쳐진 면이 중심을 기준으로 각각 다른 위치에 배치되도록 하는 것을 특징으로 한다.In addition, the overlapping surface of the CFRP fabric paper is characterized in that it is arranged in each other position relative to the center.

또한, 상기 표면 처리 단계;는 상기 알루미늄휠의 표면을 부식시켜 미세 흠집을 생성하고, 상기 CFRP 성형체의 표면에 연마재를 이용하여 미세 흠집을 생성하는 것을 특징으로 한다.In addition, the surface treatment step; Corroding the surface of the aluminum wheel to produce fine scratches, characterized in that to generate fine scratches using the abrasive on the surface of the CFRP molded body.

한편, 본 발명은 알루미늄으로 형성되고 원통형의 림의 일측면 중앙부에 허브가 형성되어 차량의 타이어가 차량에 결합되도록 하는 알루미늄휠에 있어서, 상기 림의 일측면에 탄소섬유가 평면 형태의 CFRP 직물지로 형성되어 다단으로 적층 결합된 원통형의 CFRP 성형체가 일체로 부착된 것을 특징으로 한다.On the other hand, the present invention is an aluminum wheel formed of aluminum and the hub is formed in the central portion of one side of the cylindrical rim, so that the tire of the vehicle is coupled to the vehicle, carbon fiber on one side of the rim as a CFRP woven paper A cylindrical CFRP molded body formed by stacking and joining in multiple stages is characterized in that it is integrally attached.

이에, 본 발명은 CFRP 적층배열 결정단계와, CFRP 재단 및 적층단계, CFRP 경화단계, 표면처리단계, 접합단계를 거치는 간단한 공정으로 기계적인 강도가 극대화되면서 중량이 저감되는 경량화 알루미늄 휠의 제조방법을 제공함으로서, 알루미늄과 CFRP의 이종 재질로 형성된 휠의 제작이 간편하게 이루어질 뿐만 아니라, 알루미늄휠의 전체적인 중량이 감소되어 차량의 연비 및 주행성능이 향상되고, 환경오염을 줄일 수 있을 뿐만 아니라, 사고 발생시에 휠의 파손이 최소화되는 효과를 가지게 된다.Accordingly, the present invention provides a method for manufacturing a lightweight aluminum wheel in which the weight is reduced while maximizing the mechanical strength by a simple process of determining the CFRP laminated arrangement, CFRP cutting and laminating, CFRP curing, surface treatment, and bonding. By providing a wheel made of aluminum and CFRP heterogeneous materials, the overall weight of the aluminum wheel is reduced, improving fuel efficiency and driving performance of the vehicle, reducing environmental pollution, and in the event of an accident. The breakage of the wheel is minimized.

또한, 본 발명은 탄소섬유가 각각 다른 방향으로 배치된 제1직물지와 제2직물지가 순차적으로 적층되도록 하여 하중이 가해지는 방향에 관계없이 CFRP 성형체의 지지 강도가 견고하게 형성되도록 함으로서, 사고가 발생될 때 충격 방향에 관계 없이 휠이 상시 우수한 강도를 가지게 되어 운전자 및 탑승자가 상해를 입는 것을 줄이는 효과를 가지게 된다.In addition, the present invention is to stack the first fabric paper and the second fabric paper in which carbon fibers are arranged in different directions sequentially so that the support strength of the CFRP molded body is formed firmly regardless of the direction of the load, an accident occurs In this case, the wheel always has excellent strength regardless of the direction of impact, thereby reducing the injuries of the driver and the occupant.

또한, 본 발명은 CFRP 직물지의 끝단이 겹쳐진 상태로 다단으로 적층되도록 하여 CFRP 직물지를 다단으로 적층할 때 CFRP 직물지에 쳐짐이 발생되거나 끝단의 올이 풀리는 것이 방지되도록 함으로서, 제작 과정에서 발생되는 불량을 줄일 수 있는 효과를 가지게 된다.In addition, the present invention is to ensure that the end of the CFRP fabric paper is laminated in multiple stages so that the stacking of CFRP fabric paper in multiple stages so as to prevent the slap in the CFRP fabric paper or loosening of the end of the end, so that the defects generated in the manufacturing process It will have the effect of reducing it.

또한, 본 발명은 CFRP 직물지의 겹쳐진 면이 각각 다른 위치에 배치되도록 하여 CFRP 성형체의 두께가 균일하게 형성됨과 동시에 기계적인 강도가 균일하게 형성되도록 함으로서, CFRP 성형체의 외관이 미려하게 형성될 뿐만 아니라, 불특정한 방향에서 가해지는 충격 및 하중에서 견고한 지지력을 갖는 효과를 가지게 된다.In addition, the present invention is so that the overlapping surface of the CFRP fabric paper is disposed at different positions so that the thickness of the CFRP molded body is formed uniformly and the mechanical strength is formed uniformly, not only the appearance of the CFRP molded body is beautifully formed, It has the effect of having a strong bearing force in the impact and load applied in an unspecified direction.

또한, 본 발명은 알루미늄휠의 표면 및 CFRP 성형체의 표면에 흠집을 형성하여 알루미늄휠과 CFRP 성형체의 접착력이 향상되도록 함으로서, 알루미늄휠과 CFRP 성형체 사이가 벌어지거나 파손되는 것을 줄일 수 있는 효과를 가지게 된다.In addition, the present invention by forming a scratch on the surface of the aluminum wheel and the surface of the CFRP molded body to improve the adhesion between the aluminum wheel and the CFRP molded body, there is an effect that can reduce the gap between the aluminum wheel and CFRP molded body is broken or broken. .

한편, 본 발명은 간단한 구조로 제작이 간편하면서도 기계적인 강도가 극대화되고 중량이 저감되는 경량화 알루미늄 휠을 제공함으로서, 알루미늄휠의 전체적인 중량이 감소되어 차량의 연비 및 주행성능이 향상되면서도, 사고 발생시에 휠의 파손이 최소화되는 효과를 가지게 된다.On the other hand, the present invention provides a lightweight aluminum wheel that is easy to manufacture with a simple structure, while maximizing the mechanical strength and reduced weight, the overall weight of the aluminum wheel is reduced to improve the fuel economy and running performance of the vehicle, when an accident occurs The breakage of the wheel is minimized.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참고로 하여 더욱 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

도 1은 본 발명에 따른 경량화 알루미늄 휠의 제조 단계를 보인 블럭도로서, 도시된 것과 같이 본 발명은 탄소섬유(11)가 직조된 CFRP직물지의 적층 배열을 결정하는 CFRP 적층배열 결정단계(S1)와, CFRP직물지를 재단하고 다단으로 적층하여 일체의 원통형으로 형성하는 CFRP 재단 및 적층단계(S2)와, 다단으로 적층된 CFRP 직물지를 경화시키는 CFRP 경화단계(S3)와, 알루미늄휠과 CFRP 성형체의 접촉면에 흠집을 형성하고 불순물을 제거하는 표면처리단계(S4) 및 알루미늄휠과 CFRP 성형체를 일체로 접합시키는 접합단계(S5)를 거쳐 경량화된 알루미늄휠이 제조되도록 한 것이다.1 is a block diagram showing a manufacturing step of a lightweight aluminum wheel according to the present invention, as shown in the present invention is a CFRP laminated arrangement determination step (S1) to determine the stacking arrangement of the carbon fiber 11 woven CFRP fabric paper And, CFRP cutting and laminating step (S2) of cutting CFRP fabric paper and stacking it in multiple stages to form a single cylinder, CFRP curing step (S3) of curing CFRP fabric paper laminated in multiple stages, and aluminum wheel and CFRP molded body Lightweight aluminum wheels are manufactured through a surface treatment step (S4) of forming a scratch on the contact surface and removing impurities and a bonding step (S5) of integrally joining the aluminum wheel and the CFRP molded body.

CFRP(Carbon Fiber Reinforced Plastic, 탄소섬유 강화 플라스틱)는 복합재료의 일종으로서 탄소섬유를 에폭시나 폴리아미드 등의 매트릭스 성형하여 제작되는 것으로서, 철과 비교할 때 약 20%의 중량을 가지면서도 강성이 매우 우수한 특성을 가짐에 따라, 각종 건축 구조재를 비롯하여 최첨단 항공기나 군함 등 저중량 고강도를 요하는 다양한 용도로 이용되고 있다.CFRP (Carbon Fiber Reinforced Plastic) is a kind of composite material that is produced by matrix molding of carbon fiber such as epoxy or polyamide.It has a weight of about 20% and is very rigid compared to iron. As it has characteristics, it is used for various applications requiring low weight and high strength, such as various construction structural materials, high-tech aircraft and warships.

상기 CFRP 적층배열 결정단계(S1)는 도 2에서 보인 것과 같이 여러 가닥의 탄소섬유(11)가 서로 직교되는 방향으로 교차되면서 평면 형태의 CFRP 직물지를 형성하도록 하되, 다수의 CFRP 직물지를 다단으로 적층시킬 때 상기 탄소섬유(11)의 배치 각도를 조절하여 다수의 CFRP 직물지가 적층되어 CFRP 성형체를 형성할 때의 강도가 극대화되도록 한다.The CFRP laminated arrangement determination step (S1) as shown in Figure 2 to cross the carbon fiber 11 of the several strands in the direction orthogonal to each other to form a planar CFRP woven paper, laminated a plurality of CFRP woven paper in multiple stages By adjusting the placement angle of the carbon fiber 11 to maximize the strength when a plurality of CFRP fabric paper is laminated to form a CFRP molded body.

이때, 상기 CFRP 직물지를 형성하는 탄소섬유(11)의 배치 각도는 각각 0°와 90°방향으로 직교되면서 탄소섬유(11)가 직조되는 제1직물지(10a)와, 상기 제1직물지(10a)를 형성하는 탄소섬유(11)의 직조 방향과 각각 45°의 위상차를 갖는 제2직물지(10b)로 형성되도록 하고, 상기 제1직물지(10a)와 제2직물지(10b)가 순차적으로 교번되어 적층되도록 함으로써, 하중이 가해지는 방향에 관계없이 CFRP 성형체의 지지 강도가 견고하게 형성되도록 한다.At this time, the arrangement angle of the carbon fiber 11 forming the CFRP woven paper is orthogonal to the 0 ° and 90 ° direction, respectively, the first fabric paper (10a) and the woven fabric 10, the first fabric paper (10a) The second fabric paper 10b having a phase difference of 45 ° and the weaving direction of each of the carbon fibers 11 to form a shape is formed, and the first fabric paper 10a and the second fabric paper 10b are sequentially alternately stacked. By doing so, the support strength of the CFRP molded body is firmly formed regardless of the direction in which the load is applied.

또한, 상기 제1직물지(10a)와 제2직물지(10b)는 각각 순차적으로 하나씩 번갈아가면서 적층되도록 하는 것도 무방하나, 알루미늄 휠의 특성에 따라 제1직물지가(10a) 연속으로 2매 적층된 후 제2직물지(10b)가 다시 연속으로 2매 적층되도록 하는 등의 다른 적층 순서로 적층되도록 하는 것도 무방하다.Further, the first fabric paper 10a and the second fabric paper 10b may be stacked alternately one by one, respectively, but according to the characteristics of the aluminum wheel, two first fabric papers 10a may be sequentially stacked. The second fabric paper 10b may be laminated in another stacking order, such as stacking two sheets in succession again.

상기 CFRP 재단 및 적층단계(S2)는 상술한 것과 같이 탄소섬유를 평면 형상의 CFRP 직물지로 직조한 후 휠의 형상과 대응되게 재단하고, 재단된 CFRP 직물지를 상기 CFRP 적층배열 결정단계(S1)에서 결정된 것과 같은 순서로 원통형의 성형금형(1)의 외측에 적층하여 일체의 원통형으로 형성되도록 한다.In the CFRP cutting and laminating step (S2), as described above, the carbon fiber is woven into CFRP woven paper having a flat shape, and then cut to correspond to the shape of the wheel, and the cut CFRP woven paper is determined in the CFRP laminated arrangement determining step (S1). Laminated to the outer side of the cylindrical molding mold (1) in the same order as determined so as to form a single cylindrical.

이때, 도 3에서 보인 것과 같이 통상적으로 허브가 형성되는 휠의 외측부의 직경이 반대측의 직경 보다 작게 형성되는 특성에 따라 CFRP 성형체(20)가 원통형으로 형성되어 림의 내측면에 부착되도록 하기 위하여, CFRP 직물지를 재단할 때 전체적으로 원호형의 평판 형태로 재단하는 것이 바람직하다.In this case, as shown in FIG. 3, in order to have the CFRP molded body 20 formed in a cylindrical shape and attached to the inner side of the rim, according to a characteristic that the diameter of the outer portion of the wheel on which the hub is formed is generally smaller than the diameter of the opposite side, as shown in FIG. When cutting the CFRP woven paper, it is preferable to cut it in the form of an arc-shaped flat plate as a whole.

또한, 상술한 것과 같이 원호형으로 재단된 CFRP 직물지를 적층할 때에는 휠의 림 형상과 대응되게 형성된 원통형의 성형금형(1)의 외측에 제1직물지(10a)와 제2직물지(10b)로 구성된 CFRP 직물지를 감아 전체적으로 원통형으로 형성되도록 하되, CFRP 직물지의 일측 끝단이 타측 끝단의 상면에 5mm내외의 길이로 겹쳐지게 부착되는 결합부(12)가 형성되도록 하고, 에폭시 등의 통상의 바인더를 이용하여 고정함으로써, CFRP 직물지의 끝단에서 탄소섬유의 올이 풀려나오거나, CFRP 직물지에 처짐이 발생되는 것이 방지되도록 하는 것이 바람직하다.In addition, as described above, when laminating CFRP woven paper cut in an arc shape, the first fabric paper 10a and the second fabric paper 10b are formed on the outer side of the cylindrical molding mold 1 formed to correspond to the rim shape of the wheel. Winding the CFRP fabric paper to be formed in a cylindrical shape as a whole, one end of the CFRP fabric paper is formed so that the coupling portion 12 is attached to overlap the length of about 5mm on the upper surface of the other end, using a conventional binder such as epoxy By fixing, it is desirable to prevent the release of the carbon fiber from the end of the CFRP fabric paper, or sagging of the CFRP fabric paper.

더불어, CFRP 직물지는 최적의 강도와 중량 저감 효과를 얻기 위하여 약 17매가 적층되어 일체로 성형되도록 하는 것이 바람직하나, 휠의 용도 및 형상에 따라 CFRP 직물지의 수를 증감하여 사용하는 것도 무방하며, 상기와 같이 CFRP 직물지의 일측 끝단과 타측 끝단이 겹쳐지는 결합부(12)는 중심을 기준으로 일정 각도 간격으로 이격되어 배치되도록 함으로써, CFRP 성형체(20)가 전체적으로 균일한 두께를 갖도록 함과 동시에, 균일한 강도를 가질 수 있도록 하는 것이 바람직하다.In addition, CFRP woven paper is preferably about 17 sheets are laminated and integrally molded in order to obtain the optimum strength and weight reduction effect, but may be used by increasing or decreasing the number of CFRP woven paper according to the use and shape of the wheel. Coupling portion 12 overlapping one end and the other end of the CFRP woven paper as described above is arranged to be spaced at a predetermined angle interval with respect to the center, so that the CFRP molded body 20 has a uniform thickness as a whole, uniform It is desirable to be able to have one strength.

상기 CFRP 경화단계(S3)는 CFRP 성형체(20)의 기계적인 강도를 향상시키기 위하여 바인더로 사용되는 통상의 에폭시나 폴리아미드 등의 수지를 경화시키는 단계로서, 원통형의 CFRP 성형체(20)가 최고의 강도를 갖도록 하기 위하여 통상의 오토클레이브의 내부에서 고압 및 고온 조건을 가하여 경화되도록 하는 것이 바람직하다.The CFRP curing step (S3) is a step of curing a conventional epoxy or polyamide resin used as a binder to improve the mechanical strength of the CFRP molded body 20, the cylindrical CFRP molded body 20 is the highest strength In order to have a high pressure and high temperature conditions in the interior of a conventional autoclave it is preferable to allow it to cure.

상기 표면처리단계(S4)는 별도로 제작된 알루미늄휠과 상술한 것과 같은 단계를 거쳐 제작된 CFRP 성형체(20)의 접착성을 향상시키기 위하여 알루미늄휠 및 CFRP 성형체(20)를 세척하고 건조한 후 각각의 접착면에 미세 흠집을 형성하여 접착제와의 접촉 면적이 극대화되도록 한다.The surface treatment step (S4) after washing and drying the aluminum wheel and CFRP molded body 20 in order to improve the adhesion between the separately produced aluminum wheel and the CFRP molded body 20 produced through the same steps as described above Fine scratches are formed on the adhesive surface to maximize the contact area with the adhesive.

이때, 통상적인 기계 가공에 의해 제작되는 알루미늄휠의 외측면에 부착된 기름찌꺼기 및 알루미늄 분말 등이 완전히 세척되도도록 한 후, 알루미늄휠을 신속한 부식이 발생되는 산성용액 등을 접촉시켜 알루미늄휠의 표면에 부식에 의한 다수의 미세 흠집이 발생되도록 하며, 알루미늄휠에 접착되는 CFRP 성형체(20)의 표면에는 통상의 연마천 등을 이용하여 물리적인 미세 흠집이 발생되도록 하는 것이 바람직하다.At this time, the oil residue and aluminum powder, etc. attached to the outer surface of the aluminum wheel produced by the conventional machining is completely washed, and then the aluminum wheel is brought into contact with an acid solution, which causes rapid corrosion, to contact the surface of the aluminum wheel. It is preferable that a plurality of fine scratches are generated due to corrosion, and that physical fine scratches are generated on a surface of the CFRP molded body 20 adhered to an aluminum wheel using a conventional polishing cloth or the like.

상기 접합단계(S5)는 도 4에서 보인 것과 같이 상술한 표면처리단계(S4)를 거쳐 미세 흠집이 생성된 알루미늄휠(2)과 CFRP 성형체(20)를 일체로 접착하는 단계로서, 통상의 합성수지제 접착제를 알루미늄휠과 CFRP 성형체(20)의 접착면에 각 각 도포한 후 접착시키는 것이 바람직하며, 사용되는 접착제의 특성에 따라 고온조건 또는 고압조건 등을 추가적으로 가하여 견고한 접착이 이루어지도록 하는 것이 바람직하다.The bonding step (S5) is a step of integrally bonding the aluminum wheel 2 and the CFRP molded body 20, the fine scratches generated through the above-described surface treatment step (S4), as shown in Figure 4, a conventional synthetic resin It is preferable to apply the adhesive to the adhesive surface of the aluminum wheel and the CFRP molded body 20, respectively, and then adhere the adhesive, and to add a high temperature condition or a high pressure condition according to the characteristics of the adhesive to be used, thereby making it possible to achieve a firm adhesion. Do.

이에 따라, 별도로 알루미늄휠을 단조가공 또는 주조가공 등의 통상의 기계 가공 공법을 거쳐 제작한 후, 알루미늄휠의 림에 원통형의 CFRP 성형체(20)를 접착하여 일체로 고정함으로써, 알루미늄과 CFRP의 이종 재질로 형성된 휠의 제작이 간편하게 이루어질 뿐만 아니라, 알루미늄휠의 전체적인 중량이 감소되어 차량의 연비 및 주행성능이 향상되고, 차량의 연료 사용량을 줄여 환경오염을 줄일 수 있을 뿐만 아니라, 강도가 향상되어 사고 발생시에 휠의 파손이 최소화되고 이에 따른 운전자의 보호 효과 까지도 가질 수 있게 되는 것이다.Accordingly, after the aluminum wheel is manufactured separately through a conventional machining method such as forging or casting, the cylindrical CFRP molded body 20 is bonded to the rim of the aluminum wheel and fixed integrally, thereby dissociating aluminum and CFRP. Not only is the wheel made of material easy to manufacture, but the overall weight of the aluminum wheel is reduced to improve the fuel economy and driving performance of the vehicle, reduce the pollution of the vehicle by reducing the fuel consumption of the vehicle, and improve the strength of the accident. When it occurs, the wheel breakage is minimized and thus the driver's protection effect can be obtained.

도 1은 본 발명의 경량화 휠 제조단계를 보인 블럭도.1 is a block diagram showing a manufacturing process of the lightweight wheel of the present invention.

도 2는 본 발명의 CFRP 직물지의 확대도Figure 2 is an enlarged view of the CFRP woven paper of the present invention

도 3은 본 발명에 따른 CFRP 직물지의 적층단계를 보인 사시도.Figure 3 is a perspective view showing the lamination step of the CFRP fabric paper according to the present invention.

도 4는 본 발명에 따른 접합단계를 보인 분해사시도.Figure 4 is an exploded perspective view showing a bonding step according to the present invention.

※ 도면의 주요 부분에 대한 부호의 설명[Description of Drawings]

1 : 성형금형 2 : 알루미늄휠1: Molding mold 2: Aluminum wheel

10a : 제1직물지 10b : 제2직물지10a: first fabric paper 10b: second fabric paper

11 : 탄소섬유 12 : 결합부11 carbon fiber 12 bonding portion

20 : CFRP 성형체20: CFRP molded body

Claims (9)

탄소섬유가 평면상의 CFRP 직물지 형태로 직조되되, 휠의 특성에 따라 탄소섬유의 적층 배열을 결정하는 CFRP 적층배열 결정단계(S1);CFRP laminated arrangement determining step (S1) of the carbon fiber is woven in the form of CFRP woven paper on the plane, and determines the stacking arrangement of the carbon fiber according to the characteristics of the wheel; CFRP 직물지를 재단하고 재단된 CFRP직물지를 다단으로 적층하여 일체로 형성하는 CFRP 재단 및 적층단계(S2);CFRP cutting and laminating step (S2) to form a single piece by cutting the CFRP fabric paper and laminated the cut CFRP fabric paper in multiple stages; 다단으로 적층된 CFRP 직물지를 고온 및 고압상태에서 경화시키는 CFRP 경화단계(S3);CFRP curing step (S3) for curing the multi-stage CFRP fabric paper at high temperature and high pressure; 알루미늄휠과 상기 CFRP 경화단계(S3)에서 경화된 CFRP 성형체의 접착성을 향상시키도록 불순물을 제거하고 표면적을 증가시키는 표면처리단계(S4);Surface treatment step (S4) to remove impurities and increase the surface area to improve the adhesion between the aluminum wheel and the CFRP molded body cured in the CFRP curing step (S3); 알루미늄휠과 CFRP 성형체를 일체로 접합시키는 접합단계(S5);Joining step (S5) for integrally joining the aluminum wheel and the CFRP molded body; 를 거치는 것을 특징으로 하는 경량화 알루미늄 휠의 제조방법.Method of manufacturing a lightweight aluminum wheel, characterized in that through. 제 1항에 있어서,The method of claim 1, 상기 CFRP 적층배열 결정단계(S1);는The CFRP stack arrangement determination step (S1); 탄소섬유가 각각 0°및 90°방향으로 엇갈리게 직조된 제1직물지와, 탄소섬유가 상기 제1직물지와 45°위상차를 가지면서 엇갈리게 직조된 제2직물지가 순차적으로 교번되어 적층되도록 하는 것을 특징으로 하는 경량화 알루미늄 휠의 제조방법.Characterized in that the carbon fibers are interlaced in the direction of 0 ° and 90 ° respectively, the first fabric paper and the second weave fabric interlaced alternately woven while the carbon fiber has a 45 ° phase difference with the first fabric paper Method of manufacturing a lightweight aluminum wheel. 제 1항에 있어서,The method of claim 1, 상기 CFRP 적층단계;는The CFRP stacking step; 원통형의 성형 금형의 외측에 다수의 CFRP 직물지를 순차적으로 감아 다단으로 적층된 일체의 원통형으로 성형되도록 하되, 상기 CFRP직물지의 일측 끝단과 타측 끝단이 서로 겹쳐지도록 하는 것을 특징으로 하는 경량화 알루미늄 휠의 제조방법.Manufacturing a lightweight aluminum wheel, characterized in that to wrap in a plurality of CFRP woven paper sequentially on the outer side of the cylindrical molding die to form a single cylindrical stacked in multiple stages, one end and the other end of the CFRP fabric paper overlap each other. Way. 제 3항에 있어서,The method of claim 3, wherein 상기 CFRP직물지의 겹쳐진 면이 중심을 기준으로 각각 다른 위치에 배치되도록 하는 것을 특징으로 하는 경량화 알루미늄 휠의 제조방법.The method of manufacturing a lightweight aluminum wheel, characterized in that the overlapping surface of the CFRP fabric paper are arranged in different positions with respect to the center. 제 1항 내지 제 4항 중 어느 한 항에 있어서,5. The method according to any one of claims 1 to 4, 상기 표면 처리 단계;는The surface treatment step; 상기 알루미늄휠의 표면을 부식시켜 미세 흠집을 생성하고, 상기 CFRP 성형체(20)의 표면에 연마재를 이용하여 미세 흠집을 생성하는 것을 특징으로 하는 경량화 알루미늄 휠의 제조방법.Corroding the surface of the aluminum wheel to produce fine scratches, the method of producing a lightweight aluminum wheel, characterized in that to generate fine scratches using an abrasive on the surface of the CFRP molded body (20). 알루미늄으로 형성되고 원통형의 림의 일측면 중앙부에 허브가 형성되어 차량의 타이어가 차량에 결합되도록 하는 알루미늄휠에 있어서,In the aluminum wheel is formed of aluminum and the hub is formed in the central portion of one side of the cylindrical rim so that the tire of the vehicle is coupled to the vehicle, 상기 림의 일측면에 탄소섬유가 평면 형태의 CFRP 직물지로 직조되어 다단으 로 적층 결합된 원통형의 CFRP 성형체가 일체로 부착된 것을 특징으로 하는 경량화 알루미늄 휠.Lightweight aluminum wheel, characterized in that the carbon fiber is woven in a CFRP woven fabric of a flat form on one side of the rim is integrally attached to the cylindrical CFRP molded body laminated in multiple stages integrally. 제 6항에 있어서,The method of claim 6, 상기 CFRP 성형체;는The CFRP molded body; 상기 탄소섬유가 각각 0°및 90°방향으로 엇갈리게 직조된 제1직물지와, 탄소섬유가 상기 제1직물지와 45°위상차를 가지면서 엇갈리게 직조된 제2직물지가 순차적으로 교번되어 적층된 것을 특징으로 하는 경량화 알루미늄 휠.Wherein the first weave fabric is interlaced with the carbon fibers in directions of 0 ° and 90 °, respectively, and the second weave fabric is interlaced with the weaving fibers while having a 45 ° phase difference with the first fabric. Lightweight aluminum wheel. 제 6항에 있어서,The method of claim 6, 상기 CFRP 성형체;는The CFRP molded body; 상기 CFRP 직물지의 일측 끝단이 타측 끝단의 상부측에 겹쳐지게 결합되는 결합부가 형성된 것을 특징으로 하는 경량화 알루미늄 휠.Lightweight aluminum wheel, characterized in that the coupling portion is formed so that one end of the CFRP fabric paper is coupled to overlap the upper side of the other end. 제 7항에 있어서,The method of claim 7, wherein 상기 결합부는 상기 CFRP 직물지의 적층 순서에 따라 일정 각도 간격으로 이격되어 각각 다른 위치에 배치된 것을 특징으로 하는 경량화 알루미늄 휠.Lightweight aluminum wheels, characterized in that the coupling portion is spaced apart from each other by a predetermined angle interval in accordance with the stacking order of the CFRP fabric paper.
KR1020080132462A 2008-12-23 2008-12-23 manufacturing method of a light weight aluminium wheel and an aluminium wheel thereof KR101017930B1 (en)

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Cited By (4)

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KR20150136799A (en) 2014-05-28 2015-12-08 현대성우메탈 주식회사 Manufacturing Method of Wheel Using Uni-Directional Fiber Fabric and Wheel Manufactured by the Same
KR20170004361A (en) 2015-07-02 2017-01-11 현대성우메탈 주식회사 Wheel for Vehicle Having Rim Having Joining Part and Its Manufacturing Method
KR102075882B1 (en) * 2019-12-19 2020-02-11 (주)나노엔지니어링 Manufacturing method of the carbon fiber wheel by the injection and carbon fiber wheel thereof
US11383550B2 (en) 2018-05-25 2022-07-12 Hyundai Motor Company Composite rim of vehicle wheel and method of manufacturing the same

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JPH0238101A (en) * 1988-07-29 1990-02-07 Kanai Hiroyuki Wheel for automobile
EP0938969B1 (en) * 1997-08-21 2006-10-25 Toray Industries, Inc. Light metal/cfrp structural member
KR100614845B1 (en) * 2002-12-03 2006-08-23 임재우 The method of manufacturing aluminium alloy wheel containing heterogeneous material
US20100143683A1 (en) * 2005-08-10 2010-06-10 Chiou Minshon J Fiber Network Layers and Flexible Penetration Resistant Articles Comprising Same

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KR20150136799A (en) 2014-05-28 2015-12-08 현대성우메탈 주식회사 Manufacturing Method of Wheel Using Uni-Directional Fiber Fabric and Wheel Manufactured by the Same
KR20170004361A (en) 2015-07-02 2017-01-11 현대성우메탈 주식회사 Wheel for Vehicle Having Rim Having Joining Part and Its Manufacturing Method
US11383550B2 (en) 2018-05-25 2022-07-12 Hyundai Motor Company Composite rim of vehicle wheel and method of manufacturing the same
KR102075882B1 (en) * 2019-12-19 2020-02-11 (주)나노엔지니어링 Manufacturing method of the carbon fiber wheel by the injection and carbon fiber wheel thereof

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