KR100650160B1 - Aluminum air tank weld part form using in car - Google Patents

Aluminum air tank weld part form using in car Download PDF

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KR100650160B1
KR100650160B1 KR1020050081228A KR20050081228A KR100650160B1 KR 100650160 B1 KR100650160 B1 KR 100650160B1 KR 1020050081228 A KR1020050081228 A KR 1020050081228A KR 20050081228 A KR20050081228 A KR 20050081228A KR 100650160 B1 KR100650160 B1 KR 100650160B1
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South Korea
Prior art keywords
base material
welding
air tank
metal
joint
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KR1020050081228A
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Korean (ko)
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정지현
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(유)부림금속
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/06—Applications or arrangements of reservoirs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
    • B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
    • B60T13/24—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release the fluid being gaseous
    • B60T13/26—Compressed-air systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2101/00—Articles made by soldering, welding or cutting
    • B23K2101/04—Tubular or hollow articles
    • B23K2101/12—Vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof

Abstract

A welding unit structure of an aluminum air tank of a vehicle is provided to reduce the defective rate at the welding unit between a drum and a cover or the cover and another cover, to easily weld the structure by automating the procedure, and to improve welded strength. A welding unit structure of an aluminum air tank of a vehicle comprises a first base metal(10) formed like a cylindrical drum or a semispherical cover and made of aluminum or alloy; a second base metal(20) jointed with one end of the first base metal as a semispherical cover; a welding metal(30) jointing the first base metal with the second base metal by melting a joint(40) between the first and second base metals and filler material through arc heat; a fixing unit formed with a peak tightly contacted on the inner wall of the base metal at the front end as a puckered structure and a guide leading the peak to the inner wall of the base metal; and a welding metal receiving unit folded from the fixing unit in a V-type to be continued to the base metal body. The first and second base metals are combined by fitting the joint portion into the inner wall of the jointed base metal to fill the welding metal receiving unit with melted welding metal by welding the joint.

Description

차량용 알루미늄 에어탱크의 용접부 구조{ Aluminum Air Tank Weld Part Form Using in Car} Aluminum Air Tank Weld Part Form Using in Car}

도 1은 본 발명에 의한 알루미늄 에어탱크의 단면 구조도1 is a cross-sectional structural view of an aluminum air tank according to the present invention

도 2는 본 발명에 의한 알루미늄 에어탱크의 조립 구성도2 is an assembly configuration of the aluminum air tank according to the present invention

도 3은 용접부 구조의 상세도3 is a detailed view of a welded structure

도 4는 구형 에어탱크에 본 발명을 적용한 실시 예도Figure 4 is an embodiment of the present invention applied to the old air tank

도 5는 종래 알루미늄 에어탱크의 용접부 구조도5 is a structural view of the welded portion of a conventional aluminum air tank

. 주요 부호의 설명. Explanation of the Major Codes

10. 제1모재 11. 내벽 12. 단10. First base material 11. Inner wall 12.

20. 제2모재 21. 체부 20. Second parent material 21. Body part

30. 용접금속 40. 접합부30. Welding metal 40. Joints

41. 고정부 42. 용접금속수용부41. Fixing part 42. Welding metal receiving part

본 발명은 차량용 알루미늄 에어탱크의 용접부 구조에 관한 것이며, 알루미늄 또는 알루미늄 합금으로 이루어지는 에어탱크의 용접부 신뢰성을 향상하고, 제작을 용이하게 하는 용접부 구조에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welded structure of an aluminum air tank for a vehicle, and relates to a welded structure for improving welded reliability of an air tank made of aluminum or an aluminum alloy and facilitating fabrication.

일반적으로 화물트럭과 버스 등 대형차는 브레이크등의 제동성능을 향상하기 위해 에어를 이용한 브레이크 등을 채용하고 있고, 최근에는 일부 승용차에도 에어브레이크 또는 에어 서스펜션 등의 부가장치가 채택 사용되고 있으며, 그에 따라 엔진에 연계된 에어콤프레셔로부터 생산된 압축공기를 저장하고 에어 시스템으로 공급하기 위한 에어탱크의 사용이 필수적으로 요구되고 있다.In general, large vehicles such as cargo trucks and buses employ brakes using air to improve braking performance, such as brakes. Recently, some vehicles have additional equipment such as air brakes or air suspensions. The use of air tanks for storing and supplying compressed air produced from air compressors connected to the air system is essential.

종래 에어탱크는 용접성 때문에 철판을 용접 가공한 소재가 주류를 이루었으나 차량의 중량을 감소시켜 에너지 효율을 향상하고자 하는 필요성에 의해 알루미늄과 같은 경량 소재를 사용하여 이들 철 부품을 대체하고자 하는 노력이 진행되고 있다. 이와 같은 필요성에 의해 특허 제0502888호에 의한 바와 같은 알루미늄을 주재로 한 에어탱크의 제조방법과, 실용등록 제0316390호에 의한 에어탱크를 기 제시한바 있다.Conventional air tanks are mainly made of welded steel plates due to their weldability, but efforts to replace these iron parts using lightweight materials such as aluminum are in progress due to the necessity of improving energy efficiency by reducing the weight of the vehicle. It is becoming. Due to such a necessity, a method of manufacturing an air tank mainly based on aluminum as disclosed in Patent No. 0502888 and an air tank according to Utility Registration No. 0616390 have been presented.

상기한 방법에 의해 얻어지는 알루미늄 또는 알루미늄/마그네슘계 합금으로 된 에어탱크는 경량이면서 미려하고, 내식성 및 저온취성에 우수한 장점이 있고, 내수, 내습 및 내 산화성이 강한 특성이 있다. 그러나 용접시 산화되기 쉬워 충분 히 대기를 차단한 상태에서 불활성 가스를 이용한 TIG용접법(Tungsten Inert Gas Arc Welding), MIG 용접법(Metal Inert Gas Arc Welding) 등이 사용되고, 이들 용접법은 아르곤 가스등의 불활성 가스로 용접부를 감싸 산화를 방지한 상태로 아크를 발생시키고 발생한 아크 열을 이용하여 모재 또는 용가재를 녹여 용접하기 때문에 용접공정이 까다로워 고도의 숙련을 요하고, 용접의 신뢰성을 확인할 수 있는 용접과정의 모니터링이 거의 곤란하여 용접 부위에서의 불량률 발생이 많은 문제점이 있었다.The air tank made of aluminum or an aluminum / magnesium-based alloy obtained by the above method is light and beautiful, has excellent advantages in corrosion resistance and low temperature brittleness, and has strong water, moisture and oxidation resistance. However, TIGsten welding (Tungsten Inert Gas Arc Welding) and MIG welding (Metal Inert Gas Arc Welding) using inert gas are used in the state that the atmosphere is easily oxidized during welding, and these welding methods are inert gas such as argon gas. The welding process is difficult because the arc is generated while the arc is prevented from being wrapped around the welding part and the arc heat is melted using the generated arc heat, which makes the welding process difficult and requires high skill and monitoring the welding process to confirm the reliability of the welding. Almost difficult, there were many problems in the generation of a defective rate at the welding site.

또한, 용접부는 도 5 에 도시한 바와 같이 구형 커버로 된 제2모재(20)가 원통형 드럼 구조로 된 제1모재(10)에 끼워진 상태로 맞대기 용접이 이루어지는 구조임으로 제1모재와 제2모재를 안정되게 고정하여 접합부의 틈새를 균일하게 유지하기 위한 별도의 고정구를 사용하거나 별도의 인력으로 일정하게 유지하여야 하는 공정을 필요로 하고, 용가재가 용접면 깊숙이 침투하지 않고 용접금속의 절대 단면적이 작아 용접부위의 강도를 충분히 확보할 수 없는 문제점이 있었다. 또한, 용접금속의 수축과 팽창, 그리고 용접금속의 수축을 제한하는 열영향부의 구속에 의한 접합부의 잔류응력(殘留應力)이 용접부의 강도를 떨어뜨려 전체적으로 불량률이 높아지는 문제점이 있었다.In addition, as shown in FIG. 5, the first base material and the second base material are formed in a butt welding state in which the second base material 20 having a spherical cover is fitted to the first base material 10 having a cylindrical drum structure. Requires a process to use a separate fixture to maintain a uniform gap between the joints or to maintain a uniform gap between the joints, and the filler metal does not penetrate deep into the welding surface and the absolute cross-sectional area of the weld metal is small. There was a problem that the strength of the weld portion could not be sufficiently secured. In addition, the residual stress of the joint due to the contraction and expansion of the weld metal and the restraint of the heat affected zone restricting the shrinkage of the weld metal lowers the strength of the weld, thereby increasing the overall defective rate.

본 발명은 알루미늄 또는 알루미늄 합금을 소재로 한 차량용 에어탱크 구조에서 드럼과 커버의 용접부 또는 커버와 커버의 용접부에서 용접불량률을 줄이고, 자동화에 의한 용접을 용이하게 하며, 용접부의 강도를 향상시키는 구조의 차량용 알루미늄 에어탱크의 용접부 구조를 제시할 목적을 갖는다.The present invention is to reduce the welding failure rate in the welded portion of the drum and the cover or the welded portion of the cover and cover in the vehicle air tank structure made of aluminum or aluminum alloy, to facilitate welding by automation, and to improve the strength of the welded portion of the structure An object of the present invention is to present a welded structure of an aluminum air tank for a vehicle.

이를 위하여 본 발명은 차량용 알루미늄 에어탱크를 구성함에 있어서, 각기 알루미늄이나 그 합금으로 이루어진 원통형 드럼 또는 반구형 커버로 구성되는 제1모재와; 반구형 커버구조로서 상기 제1모재의 단부에 접합 되는 제2모재와; 상기 제1모재와 제2모재의 접합부와 용가재가 아크 열에 의해 용융되어 제1모재와 제2모재를 접합하는 용접금속; 으로 에어탱크 용접부가 이루어지도록 구성하고, 상기 제1모재 또는 제2모재의 어느 한 객체의 접합부는 주름구조로서 선단부에 접합대상 모재의 내벽에 밀착되는 정점과 상기 정점을 접합대상 모재 내벽으로 안내하는 가이드로 구성되는 고정부와, 상기 고정부로부터 " V " 형으로 접어져 모재의 체부로 연속되는 용접금속수용부로 이루어져 상기 접합부를 접합대상 모재 내벽에 끼워 제1모재와 제2모재를 가 결합한 상태에서 상기 접합부를 용접함으로써 상기 용접금속수용부에 용융 용접금속이 채워지도록 한 차량용 알루미늄 에어탱크의 용접부 구조를 제시한다.To this end, the present invention comprises a first base material consisting of a cylindrical drum or a hemispherical cover each made of aluminum or an alloy thereof in constructing a vehicle aluminum air tank; A second base material joined to an end of the first base material as a hemispherical cover structure; A welding metal to which the joint part and filler metal of the first base material and the second base material are melted by arc heat to join the first base material and the second base material; The air tank welding part is formed so that the joint of any one of the first base material or the second base material has a corrugation structure and guides the vertex which is in close contact with the inner wall of the base material to be joined to the tip portion and guides the vertex to the inner wall of the base material to be joined. It consists of a fixed part consisting of a guide and a weld metal accommodating part which is folded into a "V" shape from the fixed part and continues into the body part of the base material, and the first part and the second base material are combined by inserting the joint part into the inner wall of the base material to be joined. In the present invention, a welded structure of an aluminum air tank for a vehicle in which a molten welded metal is filled in the welded metal accommodating portion is proposed.

상기 구조는 TIG 용접, MIG용접 또는 레이져용접, 아크하이브리드용접 등 차량용 알루미늄 또는 그 합금으로 된 에어탱크의 용접에서 제1모재의 내벽을 포함한 제2모재의 용접 또는 제2모재의 내벽에 대한 제1모재의 용접이 가능하여 용접부의 강도를 획기적으로 향상시키는 특징이 있고, 제1모재와 제2모재의 용접을 위해 기 존에 사용하는 별도의 치구, 지그 또는 고정구의 사용 없이 어느 일 모재 내벽에 강제 고정되는 다른 모재 접합부의 고정작용에 의해 정밀하게 가 결합 된 상태에서 용접작업이 이루어지는 특징이 있다.The structure may include the first welding of the second base material including the inner wall of the first base material or the first inner wall of the second base material in the welding of an air tank made of aluminum or an alloy thereof, such as TIG welding, MIG welding or laser welding, arc hybrid welding. It is possible to weld the base material, which greatly improves the strength of the welded part, and it is forced to the inner wall of the base material without any separate jig, jig or fixture used for welding the first base material and the second base material. There is a feature that welding works in the state of precisely coupled by the fixing action of the other base material joint to be fixed.

이하 첨부된 도면에 의한 실시 예에 의해 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1 및 도 2는 대형차량의 에어탱크로 사용하는 대용량 알루미늄 에어탱크에 본 발명을 적용한 구조이고 도 3은 용접부 구조의 상세구조를 도시한 것으로, 상기한 에어탱크는 원통형 드럼으로 이루어지는 제1모재(10)와 그 양단에 결합되는 반구형 커버구조의 제2모재(20)와, 제1모재와 제2모재의 용접부를 구성하는 용접금속(30)으로 이루어진다.1 and 2 is a structure in which the present invention is applied to a large-capacity aluminum air tank used as an air tank of a large vehicle, and FIG. 3 shows a detailed structure of a welded structure, wherein the air tank is formed of a cylindrical drum. 10 and a second base material 20 having a hemispherical cover structure coupled to both ends thereof, and a welding metal 30 constituting a welding portion of the first base material and the second base material.

상기한 각 모재는 본 발명을 용접의 객체로서 드럼과 커버를 표현하기 위한 것이며, 어느 한 모재에 주름구조의 접합부(40)가 형성되는 구성을 특징으로 한다.Each of the above base materials is for representing the drum and the cover as an object of welding according to the present invention, and is characterized in that the joining portion 40 having a corrugated structure is formed on any base material.

제1모재(10)는 일반적으로 소형 차량에 적용되는 구형(求刑) 에어탱크일 경우에는 반구형(半球形) 또는 돔(Dome)형으로 이루어지고, 실시예와 같이 대형 차량에 사용되는 에어탱크일 경우에는 원통형으로 이루어진다. 상기한 제1모재는 원판을 롤링한 후 드럼형태로 용접하거나 알루미늄관을 이용하거나 주물구조로 형성하는 등 다양한 방법으로 제조될 수 있으며, 에어의 입출구를 구성하는 홀이나 너트가 제1모재에 형성되는 경우에는 이들 요소가 제2모재의 용접 전에 형성된다.In the case of a spherical air tank that is generally applied to a small vehicle, the first base material 10 is formed of a hemispherical shape or a dome shape, and is an air tank used for a large vehicle as in the embodiment. In case it is made cylindrical. The first base material may be manufactured by various methods, such as rolling a disc and welding it in a drum form, using an aluminum tube, or forming a casting structure, wherein holes or nuts constituting air inlet and outlet are formed in the first base material. If so, these elements are formed before welding of the second base material.

제2모재는 원판을 프레싱한 후 반구형으로 드로잉하는 방법으로 제조되거나 주물구조로 제작될 수 있으며, 에어의 입출구를 구성하는 홀이나 너트가 요구되는 경우에는 제2모재의 용접 전에 형성된다. The second base material may be manufactured by a method of drawing a hemispherical shape after pressing the original plate, or may be manufactured in a casting structure, and is formed before welding of the second base material when holes or nuts constituting air inlet and outlet are required.

실시 예는 제2모재에 주름구조의 접합부(40)를 형성한 실시 예이며, 상기 접합부는 선단부에 제1모재(10)의 내벽(11)에 밀착되는 정점(41a)과 상기 정점을 제1모재 내벽으로 안내하는 가이드(41b)로 구성되는 고정부(41)와, 상기 고정부로부터 " V " 형으로 접어져 제2모재(20)의 체부(21)로 연속되는 용접금속수용부(42)로 이루어진다.The embodiment is an embodiment in which the junction portion 40 having a corrugated structure is formed on the second base material, and the junction part has a vertex 41a which is in close contact with the inner wall 11 of the first base material 10 at the distal end and the first vertex. The fixing part 41 which consists of the guide 41b which guides to the base material inner wall, and the welding metal accommodating part 42 which is folded in the "V" shape from the said fixing part, and continues to the body part 21 of the 2nd base material 20. )

고정부(41)의 정점(41a)은 제1모재의 원통형 내벽에 밀착되는 부분으로 대략 전 둘레에 걸쳐 2~3mm정도의 접촉면을 유지하도록 2~3mm 정도의 폭을 부여하고, 상기 제2모재를 강제로 밀어 넣음으로써 강한 밀착이 이루어질 수 있도록 대략 1~5°정도의 구배를 형성하거나 상기 구배를 제1모재의 내벽에 형성함으로써 상기 제2모재가 쐐기구조로 제1모재에 관입되어 고정되는 구조가 바람직하다.The apex 41a of the fixing part 41 is a part in close contact with the cylindrical inner wall of the first base material, and gives a width of about 2 to 3 mm to maintain a contact surface of about 2 to 3 mm over the entire circumference, and the second base material The second base material is inserted into the first base material by the wedge structure and is fixed by forming a gradient of about 1 to 5 ° or forming the gradient on the inner wall of the first base material so as to make strong adhesion by forcibly pushing it. The structure is preferred.

고정부(41)의 가이드(41b)는 상기한 정점보다 다소 큰 구배를 두어 드럼 또는 한쪽 커버에 다른 한쪽 커버를 삽입하기 용이하게 하는 작용을 한다. 상기 가이드의 길이는 제한이 없으나 길이가 길면 재료가 낭비되고 에어탱크의 내부용량을 줄이기 때문에 대략 1cm 이내가 되도록 하고, 그 구배는 대략 3~15°범위에서 이루어지도록 고정부를 형성한다.The guide 41b of the fixing part 41 serves to make it easier to insert the other cover into the drum or one cover by placing a gradient slightly larger than the above-mentioned vertex. The length of the guide is not limited, but if the length is long, the material is wasted and the internal capacity of the air tank is reduced to be within about 1 cm, and the gradient is formed to be in the range of about 3 to 15 °.

용접금속수용부(42)는 " V " 형 구조로 폴딩 가공된 부분으로 아크열에 의해 용가재 및 모재가 녹은 용융액이 흘러들어가 채워져 용접금속을 형성하는 공간이다. 상기 용접금속수용부는 고정부의 정점(41a)에서 제2모재(20)의 체부(21)로 연속되는 " V " 형 홈 형상이기 때문에 모재의 내벽(11)면이 노출되어 용접면의 시야확보 또는 용가재의 접근이 용이하여 일반적인 알루미늄의 용접법인 MIG용접, TIG용접 뿐만 아니라 새롭게 연구되고 있는 레이저. 아크하이브리드, 플라스마용접 등 다양한 용접을 효과적으로 적용할 수 있고, 용접금속이 두껍게 형성되고 용접면이 늘어나며 주변으로 열영향부가 보다 넓게 형성됨으로써 용접부가 균일하고, 잔존응력의 발생이 감소함으로써 용접부의 강도가 향상된다. 또한, 용접이 용이하고, 불량이 현저히 감소하는 효과를 갖는다.The weld metal accommodating part 42 is a portion that is folded into a “V” type structure, and is a space in which a molten melt of the filler metal and the base material melts and is filled with arc heat to form a weld metal. Since the weld metal accommodating part has a "V" groove shape that is continuous from the apex 41a of the fixing part to the body part 21 of the second base material 20, the inner wall 11 surface of the base material is exposed to secure the view of the welding surface. In addition, laser is being researched as well as MIG welding and TIG welding, which are common aluminum welding methods due to easy access of filler metal. Various welding such as arc hybrid and plasma welding can be applied effectively, and the weld metal is thickened, the weld surface is increased, and the heat affected zone is formed wider, so that the weld is uniform and the residual stress is reduced. Is improved. Moreover, welding is easy and it has the effect that a defect reduces remarkably.

또한, 상기 실시 예에 도시한 바와 같이 제1모재의 측단면(12)을 용접금속수용부(42)의 날개(42a) 구배와 동일 방향으로 구배를 형성하도록 선 가공함으로써 용접면의 시야확보 및 용가재의 접근성을 더욱 향상할 수 있다.In addition, as shown in the above embodiment, the side end surface 12 of the first base material is line-processed so as to form a gradient in the same direction as the blade 42a of the weld metal accommodating portion 42, thereby securing the field of view of the weld surface. The accessibility of the filler metal can be further improved.

도 4는 본 발명을 소형차량용으로 사용하는 구형 에어탱크에 본 발명을 적용한 실시 예이며, 제1모재 및 제2모재가 반구형으로 이루어지고, 제2모재에 주름구조의 접합부(40)를 형성하여 제1모재의 내벽에 가 결합한 후 용가재를 사용하여 용접한 구조를 도시한 것이다. Figure 4 is an embodiment in which the present invention is applied to a spherical air tank using the present invention for a small vehicle, the first base material and the second base material is made of a hemispherical shape, and the junction portion 40 of the corrugated structure is formed on the second base material Figure 1 shows the structure welded using filler metal after coupling to the inner wall of the first base material.

이상의 실시 예에 의한 바와 같이 본 발명에 의한 용접부 구조는 차량용 알루미늄에어탱크를 구성하는 원통형 드럼 또는 구형 커버 구조의 제1모재에 드럼의 양쪽 또는 커버의 한쪽에 구형 커버구조의 제2모재를 결합함에 있어서 제1모재 또는 제2모재 중 어느 한 모재에 주름구조의 접합부를 형성하여 다른 모재의 내벽면에 관입함으로써 가 결합이 이루어지고, 그 상태에서 용접함으로써 용접금속이 각 모재의 접촉면에 넓게 분산 형성되고, 일 측 모재의 내벽 면에도 용접면이 형성되는 구조를 갖는다. As described above, the welded part structure according to the present invention is to combine the second base material of the spherical cover structure on both sides of the drum or one side of the cover to the first base material of the cylindrical drum or the spherical cover structure constituting the vehicle aluminum air tank. In the first base material or the second base material to form a joint portion of the corrugated structure and penetrates into the inner wall surface of the other base material, the temporary bonding is made, by welding in that state, the weld metal is widely distributed and formed on the contact surface of each base material It has a structure in which a welding surface is formed also on the inner wall surface of one side base material.

이와 같은 구조에 의해 도 5에 도시된 바와 같은 기존의 알루미늄 에어탱크의 용접부 구조에 비하여 용접금속량과 용접면의 절대량이 커지고, 모재의 내벽면에 용접면이 형성됨으로써 에어탱크의 중심 방향뿐만 아니라 길이 방향으로의 내압 강도가 현저하게 향상된다. 또한, 전 용접면이 열린 상태로 용접이 이루어지기 때문에 용접 과정을 시각적으로 모니터하기 용이하고, 용접작업이 용이하여 고도의 숙련공들에 의해 이루어지던 알루미늄 용접 작업을 중급 정도의 숙련자도 용이하게 실시할 수 있게 된다.This structure increases the amount of welded metal and the absolute amount of the welded surface as compared to the welded structure of the conventional aluminum air tank as shown in FIG. 5, and forms a welded surface on the inner wall surface of the base material. The breakdown strength in the longitudinal direction is remarkably improved. In addition, since the welding is performed with the entire welding surface open, it is easy to visually monitor the welding process, and the welding work is easy, so that the intermediate welding can easily perform the aluminum welding work performed by highly skilled workers. It becomes possible.

본 발명은 용접금속의 절대량과 용접면이 증가하여 알루미늄 에어탱크에서 드럼과 커버의 용접부 또는 커버와 커버의 용접부에서 용접불량률을 현저히 감소시킬 수 있고, 용접시 지그 등에 의한 모재 고정공정 등을 생략할 수 있어 자동화에 의한 용접이 용이하고 제조공정이 단축되며, 중심 방향뿐만 아니라 길이 방향으로 용접부가 강화되어 알루미늄 에어탱크의 신뢰성을 향상할 수 있다.The present invention can significantly reduce the welding failure rate in the welded portion of the drum and the cover or the welded portion of the cover and the cover in the aluminum air tank by increasing the absolute amount of the weld metal and the welding surface, and omit the process of fixing the base material by the jig or the like during welding. It can be easily welded by automation and the manufacturing process is shortened, and the welded part is strengthened in the longitudinal direction as well as the center direction, thereby improving the reliability of the aluminum air tank.

Claims (4)

차량용 알루미늄 에어탱크를 구성함에 있어서, 각기 알루미늄이나 그 합금으로 이루어진 원통형 드럼 또는 반구형 커버로 구성되는 제1모재와; 반구형 커버구조로서 상기 제1모재의 단부에 접합 되는 제2모재와; 상기 제1모재와 제2모재의 접합부와 용가재가 아크 열에 의해 용융되어 제1모재와 제2모재를 접합하는 용접금속; 으로 에어탱크 용접부가 이루어지고, 상기 제1모재 또는 제2모재의 어느 한 객체의 접합부는 주름구조로서 선단부에 접합대상 모재의 내벽에 밀착되는 정점과 상기 정점을 접합대상 모재 내벽으로 안내하는 가이드로 구성되는 고정부와, 상기 고정부로부터 " V " 형으로 접어져 모재의 체부로 연속되는 용접금속수용부로 이루어져 상기 접합부를 접합대상 모재 내벽에 끼워 제1모재와 제2모재를 가 결합한 상태에서 상기 접합부를 용접함으로써 상기 용접금속수용부에 용융 용접금속이 채워지도록 한 차량용 알루미늄 에어탱크의 용접부 구조.In constructing a vehicle aluminum air tank, a first base material comprising a cylindrical drum or a hemispherical cover each made of aluminum or an alloy thereof; A second base material joined to an end of the first base material as a hemispherical cover structure; A welding metal to which the joint part and filler metal of the first base material and the second base material are melted by arc heat to join the first base material and the second base material; The welding portion is made by the air tank, the joint of any one of the first base material or the second base material is a corrugated structure with a tip that is in close contact with the inner wall of the base material to be joined to the tip and a guide for guiding the vertex to the inner wall of the base material to be joined. It consists of a fixed part and a welded metal accommodating part which is folded into a "V" shape from the fixed part and continues to the body part of the base material, and the joining part is fitted to the inner wall of the base material to be joined to the first base material and the second base material in a state of being combined. A welded structure of a vehicle aluminum air tank in which a welded metal receiving portion is filled with a molten welded metal by welding a joint. 제 1항에 있어서, 접합부를 구성하는 고정부의 정점에 구배가 형성되어 제1모재 및 제2모재가 접합부에서 쐐기구조로 밀착 고정되는 가 결합이 이루어지도록 한 것을 특징으로 하는 차량용 알루미늄 에어탱크의 용접부 구조.The vehicle aluminum air tank according to claim 1, wherein a gradient is formed at the apex of the fixing part constituting the joint so that the first base material and the second base material are tightly fixed to the wedge structure at the joint part. Welded structure. 제 1항에 있어서, 접합부가 관입되는 모재의 내벽에 구배가 형성되어 제1모재 및 제2모재가 접합부에서 쐐기구조로 밀착 고정되는 가 결합이 이루어지도록 한 것을 특징으로 하는 차량용 알루미늄 에어탱크의 용접부 구조.The welded part of the aluminum air tank of claim 1, wherein a gradient is formed on an inner wall of the base material into which the joint part is inserted so that the first base material and the second base material are tightly fixed to the wedge structure at the joint part. rescue. 제 1항 내지 제 3항 중 어느 한 항에 있어서, 내벽에 접합부가 삽입 고정되는 모재의 측단면을 용접금속수용부의 날개 구배와 동일 방향으로 구배가 형성되는 것을 특징으로 하는 차량용 알루미늄 에어탱크의 용접부 구조.4. The welded portion of an aluminum air tank for a vehicle according to any one of claims 1 to 3, wherein a side cross-section of the base material into which the joint is inserted and fixed to the inner wall is formed in the same direction as the wing gradient of the weld metal accommodating portion. rescue.
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110072369A (en) * 2009-12-22 2011-06-29 엘지전자 주식회사 Refrigerator
WO2012050274A1 (en) * 2010-10-13 2012-04-19 (주)디에이치메탈코리아 Method for manufacturing an air tank, and air tank manufactured by the method
CN105798435A (en) * 2016-05-16 2016-07-27 山东力诺瑞特新能源有限公司 Girth welding method of inner end cover and inner bucket of inner container of water heater

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JPH09150732A (en) * 1995-11-30 1997-06-10 Showa Alum Corp Air tank
KR19990013789U (en) * 1997-09-30 1999-04-26 정몽규 Welding deformation prevention panel connection structure
JP2002340186A (en) 2001-05-16 2002-11-27 Takuya Idogawa Can device
KR200316390Y1 (en) 2003-03-13 2003-06-18 (유)부림금속 Air tank for vehicle

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09150732A (en) * 1995-11-30 1997-06-10 Showa Alum Corp Air tank
KR19990013789U (en) * 1997-09-30 1999-04-26 정몽규 Welding deformation prevention panel connection structure
JP2002340186A (en) 2001-05-16 2002-11-27 Takuya Idogawa Can device
KR200316390Y1 (en) 2003-03-13 2003-06-18 (유)부림금속 Air tank for vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110072369A (en) * 2009-12-22 2011-06-29 엘지전자 주식회사 Refrigerator
KR101639442B1 (en) * 2009-12-22 2016-07-13 엘지전자 주식회사 Refrigerator
WO2012050274A1 (en) * 2010-10-13 2012-04-19 (주)디에이치메탈코리아 Method for manufacturing an air tank, and air tank manufactured by the method
CN105798435A (en) * 2016-05-16 2016-07-27 山东力诺瑞特新能源有限公司 Girth welding method of inner end cover and inner bucket of inner container of water heater

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