KR200402669Y1 - Preheating device for friction welding - Google Patents

Preheating device for friction welding Download PDF

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Publication number
KR200402669Y1
KR200402669Y1 KR20-2005-0027251U KR20050027251U KR200402669Y1 KR 200402669 Y1 KR200402669 Y1 KR 200402669Y1 KR 20050027251 U KR20050027251 U KR 20050027251U KR 200402669 Y1 KR200402669 Y1 KR 200402669Y1
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KR
South Korea
Prior art keywords
turbine wheel
friction welding
heat
turbine
welding
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KR20-2005-0027251U
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Korean (ko)
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박진형
박승환
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에스티엑스엔파코 주식회사
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Priority to KR20-2005-0027251U priority Critical patent/KR200402669Y1/en
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Publication of KR200402669Y1 publication Critical patent/KR200402669Y1/en

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    • 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
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/1205Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using translation movement
    • 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
    • B23K20/10Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
    • 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
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/121Control circuits therefor
    • 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
    • B23K20/12Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1245Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
    • B23K20/126Workpiece support, i.e. backing or clamping
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00Heating by electric, magnetic or electromagnetic fields
    • H05B6/02Induction heating
    • H05B6/36Coil arrangements

Abstract

본 고안은 디젤엔진의 과급기에 구성되는 터빈축과 터빈휠을 마찰용접하는 장치에 관한 것으로, 상기 터빈휠의 일면에 열을 가하는 코일 형상의 가열부와, 상기 가열부와 일체로 성형되고 수직으로 회동이 가능한 열전달부재와, 상기 열전달부재가 결합되고 고주파 발진부와 연결되는 몸체를 포함하는 열 발생부로 이루어진 것이 특징이다.The present invention relates to a friction welding apparatus for a turbine shaft and a turbine wheel which are configured in a turbocharger of a diesel engine, and a coil-shaped heating unit for applying heat to one surface of the turbine wheel, integrally formed with the heating unit and vertically Rotatable heat transfer member, characterized in that consisting of a heat generating unit including a body coupled to the heat transfer member and connected to the high frequency oscillation unit.

본 고안에 의하면, 터빈축이 접합되는 터빈휠에 일면을 일정시간 모재를 예열시켜 터빈축과 터빈휠의 마찰용접을 원할하게 진행시킬 수 있고, 마찰단계 이후 용접단계에서 터빈축과 터빈휠의 단조압력을 줄일 수 있을 뿐 아니라 또한, 이들 모재들의 용접 효율을 높일 수 있는 이점을 제공한다.According to the present invention, one surface of the turbine wheel to which the turbine shaft is joined can be preheated for a predetermined time to smoothly perform friction welding of the turbine shaft and the turbine wheel, and forging the turbine shaft and the turbine wheel in the welding step after the friction step. Not only can the pressure be reduced, but it also provides the advantage of increasing the welding efficiency of these base materials.

Description

마찰용접용 모재예열장치{PREHEATING DEVICE FOR FRICTION WELDING}Preheating device for friction welding {PREHEATING DEVICE FOR FRICTION WELDING}

본 고안은 마찰용접의 모재예열장치에 관한 것으로, 보다 상세하게는 선박용 디젤엔진의 과급기에 사용되는 터빈휠(turbine wheel)과 터빈축(turbine shaft)을 마찰용접하는데 있어 미리 터빈휠을 가열하는 모재예열장치에 관한 것이다.The present invention relates to a base material preheating device for friction welding, and more specifically, a base material for heating a turbine wheel in advance in friction welding of a turbine wheel and a turbine shaft used in a supercharger of a marine diesel engine. It relates to a preheating device.

상기 선박용 디젤엔진의 과급기는, 배기 경로에 마련된 터빈 하우징과 흡입경로에 마련된 압축기 하우징이, 베어링 하우징의 매개를 통하여 상호 연결된다. 그리고 터빈 하우징에 회전가능하게 지지된 터빈 휠(turbine wheel)과 압축기 하우징에 회전가능하게 지지된 압축기 휠(compressor wheel)은 베어링 하우징에 회전가능하게 지지된 터빈 축(turbine shaft)을 매개로 하여 동축(coaxially)으로 연결되어 있다.The supercharger of the marine diesel engine is connected to the turbine housing provided in the exhaust path and the compressor housing provided in the suction path through the bearing housing. And a turbine wheel rotatably supported in the turbine housing and a compressor wheel rotatably supported in the compressor housing are coaxial through a turbine shaft rotatably supported in the bearing housing. (coaxially) connected.

그리고, 이러한 과급기는, 내연기관으로부터 방출된 배기가스가 배기 입구를 통하여 터빈 하우징 내로 흘러들어가고, 이 배기 가스는 소용돌이 형태로 스크롤 경로(scroll passage)와 노즐 경로를 따라 흐른 다음 터빈 휠에 부딪혀서 터빈 휠을 회전시키는 역할을 담당한다. Then, the supercharger allows exhaust gas discharged from the internal combustion engine to flow through the exhaust inlet into the turbine housing, which flows in a vortex along the scroll passage and the nozzle path and then strikes the turbine wheel. It serves to rotate.

한편 선박용 디젤엔진의 과급기에 사용되는 로터 조립체(Rotor Assem bly, 터빈휠과 터빈축의 조립체)의 제작은, 이종 금속재, 예컨대 고온고압의 가스에 노출되는 부분 즉 터빈휠은 니켈기 초내열합금을 써서 내구성을 갖도록 하고 로터 샤프트를 포함한 여타 부분은 SCM440 등의 비교적 저렴한 내열강을 모재로 하여, 금속을 용해하지 않고 접촉면 마찰로 생기는 마찰열과 고온에서 일어나는 소성변형을 동시에 이용하여 접합하는 마찰용접에 의해 일체화함으로써 제조단가를 낮추는 방식으로 조립되어 왔다.On the other hand, the manufacture of the rotor assembly (assembly of the turbine wheel and the turbine shaft) used in the supercharger of a marine diesel engine is made of nickel-based super heat-resistant alloys, which are exposed to dissimilar metals, for example, gas at high temperature and high pressure. The other parts including the rotor shaft are made of a relatively inexpensive heat resistant steel such as SCM440, and are integrated by friction welding, which uses the frictional heat generated by contact surface friction and plastic deformation occurring at high temperature without melting the metal. It has been assembled in a way that lowers the manufacturing cost.

상기의 마찰용접 방법은, 이종 금속모재 2개중 하나를 고정하고 나머지 하나는 테이블척에 고정시켜서 서로 접촉시킨 다음 상기 척에 고정된 한쪽모재를 고속회전 시키는 회전단계와 상기 척을 이송하여 두 모재를 2차에 걸쳐 서로 다른 압력으로 가압하여 마찰시키는 1, 2차 마찰단계 그리고 스핀들을 급정거시킨 뒤에 상기 가압력 보다 더 큰 압력으로 두 모재를 가압하여 단조 용접시키는 단계로 이루어진다.In the friction welding method, one of two dissimilar metal base materials is fixed and the other is fixed to a table chuck to be brought into contact with each other. The first and second friction stages of pressing and rubbing at different pressures over the second stage and the quick stop of the spindle and then forging welding the two base materials with a pressure greater than the pressing force.

이같은 종래의 마찰용접 방법은 회전에 의한 마찰열을 이용하기 때문에 접합면의 기계적 성질이 우수하고, 마찰용접, 압력, 시간, 회전속도, 감소량(소재loss) 등의 공정변수 관리가 비교적 용이하여 자동화가 가능하다는 이점을 가진다. 또한 일반 화염용접에 비해 금속소모량이 적고, 접합이 아주 짧은 시간에 이루어져 접합부의 열영향 부위(Heat Affected Zone)가 좁으며, 또한 용융-응고과정이 일어나지 않는 고상 접합과정이어서 마찰에 의해 표면에 존재하는 불순물 등을 제거할 수 있는 장점도 가진다.Since the conventional friction welding method utilizes friction heat by rotation, the mechanical properties of the joint surface are excellent, and the process variables such as friction welding, pressure, time, rotation speed, and loss (material loss) are relatively easy to automate. It has the advantage of being possible. In addition, the metal consumption is lower than that of general flame welding, and the bonding is performed in a very short time so that the heat affected zone of the junction is narrow, and it is a solid-state bonding process in which no melt-solidification process occurs. It also has the advantage of removing impurities and the like.

하지만, 위와 같은 여러 가지의 장점들에도 불구하고 상기의 마찰용접기술은, 대형 모재를 고속 회전시키거나 수차에 걸쳐 고 압력으로 가압해야 하기 때문에 막대한 에너지가 소요될 뿐만 아니라, 고강도의 대형장비를 구비하지 않을 경우 척이나 스핀들을 포함한 전체 용접장치에 무리를 가져와 치수오차나 접합의 불량을 야기 시키는 문제점을 드러내었다.However, in spite of the above advantages, the friction welding technique requires enormous energy because it has to rotate a large base material at high speed or pressurize it at high pressure over a few steps. If not, the whole welding device including the chuck or the spindle is exerted, which causes problems such as dimensional error or poor connection.

본 고안은 상기한 바와 같은 문제점에 착안하여 제안된 것으로, 본 고안의 목적은, 마찰용접을 실시하기 전에 터빈축이 접합되는 터빈휠을 미리 예열시킴으로 인해 실제 마찰용접 단계에서 필요한 단조압력을 줄여 마찰용접시 용접장비에 무리가 없도록 함으로써 치수오차가 없는, 두 모재의 축이 정확히 일치하는 양호한 용접 상태를 제공하는 데 있다.The present invention has been proposed in view of the above problems, and an object of the present invention is to reduce the forging pressure required in the actual friction welding step by preheating the turbine wheel to which the turbine shaft is joined before performing the friction welding. It is to provide a good welding condition in which the axes of the two base materials are exactly coincident with no dimensional error by ensuring that the welding equipment does not overload the welding equipment.

본 고안의 또다른 목적은, 1, 2차 마찰용접 단계에서 필요한 단조압력을 대폭 감축시킴으로 인해 에너지 소모가 막대한 대형 설비를 구비하지 않아도 되는, 높은 생산성과 에너지 효율성을 갖는 용접장치를 제공하는 데 있다. It is still another object of the present invention to provide a welding device having high productivity and energy efficiency, which does not require a large-scale facility that consumes a lot of energy by greatly reducing the forging pressure required in the first and second friction welding steps. .

상기한 바와 같은 목적을 달성하기 위한 본 고안에 따른 마찰용접용 모재예열장치는, 터빈휠의 일면에 열을 가하는 코일 형상의 가열부와; 상기 가열부와 일체로 성형되고, 전후진(수평)회동과 상방향 회전이 가능한 열전달부재와; 상기 열전달부재가 결합되고, 고주파 발진부와 연결되는 몸체를 포함하는 열 발생부; 로 이루어진 것을 특징으로 한다.Friction welding base material preheating apparatus according to the present invention for achieving the above object, the coil-shaped heating portion for applying heat to one surface of the turbine wheel; A heat transfer member integrally formed with the heating unit and capable of forward and backward rotation and horizontal rotation; A heat generator comprising a body coupled to the heat transfer member and connected to a high frequency oscillator; Characterized in that consisting of.

본 고안에 따른 바람직한 실시예에 있어서, 상기 장치에는 터빈휠에 가해진 열의 온도를 감지하는 센서가 더 구비된다.In a preferred embodiment according to the present invention, the apparatus is further provided with a sensor for sensing the temperature of the heat applied to the turbine wheel.

본 고안에 따른 바람직한 실시예에 있어서, 상기 장치에는 가열부를 지지하는 단열재로 구성된 받침부를 더 포함할 수 있다.In a preferred embodiment according to the present invention, the device may further include a support portion made of a heat insulating material for supporting the heating portion.

또한, 본 고안에 따른 상기 열 발생부는, 상기 몸체와 결합되고, 횡방향으로 관통홀이 형성된 회동부재와, 상기 관통홀에 삽입되는 수평바와, 상기 수평바와 결합되고 바닥면에 설치되는 지지부재를 더 포함할 수 있다.In addition, the heat generating unit according to the present invention, the rotating member is coupled to the body, the through hole is formed in the transverse direction, the horizontal bar is inserted into the through hole, the support member is coupled to the horizontal bar and installed on the bottom surface It may further include.

이하, 첨부된 도면을 참조하여 본 고안의 모재예열장치의 구성 및 작용효과를 설명하도록 한다.Hereinafter, with reference to the accompanying drawings to explain the configuration and effect of the base material preheating device of the present invention.

도 1은 본 고안에 따른 마찰용접용 모재예열장치의 바람직한 실시예를 도시한 사시도이고, 도 2는 본 고안에 따른 마찰용접용 모재예열장치의 개략적인 블록도이며, 도 3은 본 고안에 따른 마찰용접용 모재예열장치에 구비되는 열 발생부의 정면도이고, 도 4는 본 고안에 따른 마찰용접용 모재예열장치에 구비되는 열 발생부의 측면도이다. 1 is a perspective view showing a preferred embodiment of a friction welding base material preheating apparatus according to the present invention, Figure 2 is a schematic block diagram of a friction welding base material preheating apparatus according to the present invention, Figure 3 according to the present invention 4 is a front view of a heat generating part provided in the base welding device for friction welding, and FIG. 4 is a side view of the heat generating part provided in the base welding device for friction welding according to the present invention.

첨부된 도 1과 도 2에서, 지지체(100) 내측에는 고정부재(200)가 각각 결합되어 있어서 터빈축(300)이 이들 고정부재에 의해 상기 지지체(100)의 길이방향을 따라 고정된다. 또한 터빈휠(400)은 스핀들/척과 같은 별도의 고정부재(410)에 의해 그 중심이 상기 터빈축(300)의 중심과 동일한 높이를 갖도록 위치되어 진다. 1 and 2, the fixing members 200 are coupled to the inside of the support 100, respectively, so that the turbine shaft 300 is fixed along the longitudinal direction of the support 100 by these fixing members. Turbine wheel 400 is also positioned such that its center is the same height as the center of turbine shaft 300 by a separate holding member 410, such as a spindle / chuck.

열 발생부(500)는 몸체(510), 열전달부재(520), 가열부(530)로 구분되는데, 먼저, 상기 열 발생부(500)는 제어부(600)와 고주파 발진부(700)와 연결되고 상기 고주파 발진부(700)는 전원부(800)와 냉각장치(900)에 각각 연결된다. 상기 제어부(600)는 제어회로와 ON/OFF스위치 및 온도 표시부 등이 구비되어 상기 열 발생부(500)의 작동을 제어 한다. 또한, 상기 고주파 발진부(700)는 전원부에서 전원이 공급되어 전기에너지를 열에너지로 변환시켜 주며 동시에 냉각장치(900)와 연결되어, 에너지 변환시 외부로 발생되는 고온의 열을 낮추거나 상기 고주파 발진부(700) 내부에 온도를 저하시켜주는 역할을 하게 된다.The heat generator 500 is divided into a body 510, a heat transfer member 520, and a heater 530. First, the heat generator 500 is connected to the controller 600 and the high frequency oscillator 700. The high frequency oscillator 700 is connected to the power supply 800 and the cooling device 900, respectively. The controller 600 includes a control circuit, an ON / OFF switch, a temperature display unit, and the like to control the operation of the heat generator 500. In addition, the high frequency oscillator 700 converts electrical energy into thermal energy by supplying power from a power supply unit and is connected to the cooling device 900 to lower high temperature heat generated outside during energy conversion or the high frequency oscillator 700. ) It lowers the temperature inside.

첨부된 도 3과 도 4를 참조하여 열발생부(500)를 설명하면 다음과 같다. Referring to the heat generating unit 500 with reference to FIGS. 3 and 4 as follows.

상기 열발생부의 몸체(510) 하단부에는 중심부에 관통홀(541)이 형성된 회동부재(540)가 결합된다. 여기서, 상기 몸체(510)와 상기 회동부재(540)는 일체로 성형될 수도 있다. 그리고, 상기 회동부재(540)에 형성된 관통홀(541)에는 수평바(550)가 삽입된다. 이 수평바(550)는 바닥과 면하는 다수개의 지지부재(560)와 연결 된다. 또한, 상기 몸체(510)의 일측에는 수동으로 조작이 가능한 손잡이(570)가 설치되어 상기 손잡이(570)를 이용하여 상기 몸체(510)를 전후진시킬 수가 있다. 나아가, 상기 지지부재(560)와 몸체(510) 사이에는 걸고리 등과 같은 체결수단(미도시됨)이 구성되어 있어서 상기 체결수단을 풀 경우 몸체(510)가 관통홀(541)을 중심으로 대략 90도 회전할 수 있도록 되어 있다.A rotating member 540 having a through hole 541 is coupled to a lower end of the body 510 of the heat generator. Here, the body 510 and the rotation member 540 may be integrally molded. In addition, a horizontal bar 550 is inserted into the through hole 541 formed in the rotation member 540. The horizontal bar 550 is connected to a plurality of support members 560 facing the bottom. In addition, a handle 570 that can be manually operated is installed at one side of the body 510 to advance and retract the body 510 using the handle 570. Furthermore, a fastening means (not shown), such as a hook, is formed between the support member 560 and the body 510 so that the body 510 is approximately 90 centered around the through hole 541 when the fastening means is loosened. It is also possible to rotate.

열전달부재(520)와 가열부(530)는 일체로 성형되고 상기 열전달부재(520)는 상기 몸체(510)에 이어져 전술된 고주파 발진부(700)와 연결된다. 그리고, 상기 열전달부재(520)의 끝단부에는 가열부(530)가 위치되는데, 상기 가열부(530)는 코일로 된 다수개의 원을 겹쳐놓은 형태로 구성된다. 또한, 상기 열전달부재(520)와 상기 가열부(530)는 굽혀지거나 변형되지 않는 강성(rigidity)을 가진다. The heat transfer member 520 and the heating unit 530 are integrally formed, and the heat transfer member 520 is connected to the high frequency oscillation unit 700 described above following the body 510. In addition, a heating unit 530 is positioned at the end of the heat transfer member 520, and the heating unit 530 is configured to overlap a plurality of circles made of coils. In addition, the heat transfer member 520 and the heating unit 530 have rigidity that is not bent or deformed.

상기 가열부(530)가 가열되는 위치의 바로 아래에는 석면 등 단열재로 이루어진 받침부(580)가 설치되어 가열부(530)가 터빈휠의 돌출부(420)에서 벗어나는것과 같은 만약의 경우에 대비할 수 있도록 해 준다. Immediately below the position where the heating part 530 is heated, a supporting part 580 made of a heat insulating material such as asbestos is installed so that the heating part 530 may be prepared in a case where the heating part 530 deviates from the protrusion 420 of the turbine wheel. To help.

이상과 같이 구성된 본 고안의 모재예열장치의 작용 및 사용상태를 이하 설명 한다.The operation and use of the base material preheating apparatus of the present invention configured as described above will be described below.

먼저, 터빈휠(400)을 척 등으로 고정시킨 다음 지지부재(560)와 몸체(510) 사이에 있는 예컨대 걸고리 등과 같은 체결수단(미도시됨)을 풀고 몸체(510)를 대략 90도 가량 회전시켜서 가열부(530)가 상기 터빈휠(400)의 중심부에 놓이도록 한 다음 체결수단을 잠근다. 그후 상기 손잡이(570)를 이용하여 몸체(510)를 전진시킴으로서 상기 가열부(530)가 상기 터빈휠(400)의 돌출부(420)에 끼워지도록 한다. 그런 다음 전원부(800)에서 전원이 공급되도록 스위치를 조작하면 고주파 발진부(700)에서 전기에너지를 열에너지로 변환시키고, 열 발생부(500)에서는 열전달부재(520)와 가열부(530)를 통해 열이 발생된다.First, the turbine wheel 400 is fixed with a chuck, and then the fastening means (not shown) such as a hook, for example, between the support member 560 and the body 510 is rotated and the body 510 is rotated about 90 degrees. The heating unit 530 is placed at the center of the turbine wheel 400 and then locks the fastening means. Thereafter, the body 510 is advanced by using the handle 570 so that the heating part 530 is fitted to the protrusion 420 of the turbine wheel 400. Then, when the switch is operated to supply power from the power supply unit 800, the high frequency oscillator 700 converts electrical energy into thermal energy, and the heat generator 500 heats the heat through the heat transfer member 520 and the heating unit 530. Is generated.

이와 함께 온도감지센서(미도시됨)에서는 터빈휠(400)의 온도를 감지하고, 기 설정된 온도 범위내에 이르면 상기 가열부(530)를 후진시켜서 상기 가열부(530)를 상기 터빈휠(400)의 돌출부(420)에서 분리시키고 계속하여 체결수단을 풀어 몸체(510)를 90도 반대 방향으로 회전시켜 원래의 위치로 가게 한다. 이후는 종래의 마찰용접 방식과 동일하게 상기 터빈휠(400)을 회전 가압시켜 상기 터빈축(300)과의 마찰용접을 진행 한다. In addition, the temperature sensor (not shown) senses the temperature of the turbine wheel 400, and when the temperature reaches within a predetermined temperature range, the heating unit 530 is reversed to move the heating unit 530 to the turbine wheel 400. Detach from the protrusion 420 and continue to release the fastening means to rotate the body 510 in the opposite direction 90 degrees to the original position. Thereafter, the turbine wheel 400 is rotated and pressed in the same manner as the conventional friction welding method to perform friction welding with the turbine shaft 300.

이상에서 본 고안은 기재된 구체예에 대해서만 상세히 설명 되었지만 본 고안의 기술사상 범위 내에서 다양한 변형 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 실용신안등록청구범위에 속함은 당연한 것이라 할 것이다.Although the present invention has been described in detail only with respect to the embodiments described, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended utility model claims. Will be called.

이상 설명한 바와 같은 본 고안에 따른 마찰용접용 모재예열장치에 의하면, 터빈휠을 마찰용접을 실시하기 전에 미리 예열시킴으로서 마찰용접 단계에서 필요한 단조압력을 줄일 수 있기 때문에 용접장치에 무리가 따르지 않아 치수오차가 없는, 두 모재의 축이 정확히 일치하는 양호한 용접 결과를 얻게 한다.According to the base material preheating device for friction welding according to the present invention as described above, the forging pressure required in the friction welding step can be reduced by preheating the turbine wheel before performing friction welding, so that the welding device is not unreasonable and there is a dimensional error. Good welding results are obtained in which the axes of the two base materials are exactly coincident.

또한 본 고안에 따른 마찰용접용 모재예열장치는 1, 2차 마찰용접 단계에서 필요한 단조압력을 대폭 감축시킴으로 인해 에너지 소모가 막대한 대형 설비를 구비하지 않아도 되는, 높은 생산성과 에너지 효율성을 기대할 수 있게 한다.In addition, the base material preheating device for friction welding according to the present invention greatly reduces the forging pressure required in the first and second friction welding steps, thereby enabling high productivity and energy efficiency to be expected without the need for a large facility that consumes a lot of energy. .

나아가, 본 고안에 따른 마찰용접용 모재예열장치에 의하면, 열 발생부를 터빈휠의 중심에 대해 전후진과 동시에 상방향으로 회전할 수 있는 구조를 갖도록 함으로써 간편하고 신속하게 터빈휠을 예열시킬 수 있는 또다른 효과를 제공한다.Furthermore, according to the friction welding base material preheating apparatus, it is possible to preheat the turbine wheel easily and quickly by having a structure in which the heat generating portion can be rotated upward and backward with respect to the center of the turbine wheel. Provide different effects.

도 1은 본 고안에 따른 마찰용접용 모재예열장치의 바람직한 실시예를 도시한 사시도,1 is a perspective view showing a preferred embodiment of a friction welding base material preheating apparatus according to the present invention,

도 2는 본 고안에 따른 마찰용접용 모재예열장치의 개략적인 블럭도,Figure 2 is a schematic block diagram of a base material preheating device for friction welding according to the present invention,

도 3은 본 고안에 따른 마찰용접용 모재예열장치에 구비되는 열 발생부의 정면도,3 is a front view of a heat generating unit provided in the base material preheating device for friction welding according to the present invention;

도 4는 본 고안에 따른 마찰용접용 모재예열장치에 구비되는 열 발생부의 측면도이다.Figure 4 is a side view of the heat generating portion provided in the base material preheating device for friction welding according to the present invention.

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

300 : 터빈축300: turbine shaft

400 : 터빈휠 410 : 고정부재(스핀들/척)400: turbine wheel 410: fixing member (spindle / chuck)

500 : 열 발생부 510 : 몸체500: heat generating unit 510: body

520 : 열전달부재 530 : 가열부520: heat transfer member 530: heating part

540 : 회동부재 541 : 관통홀540: rotating member 541: through hole

550 : 수평바 560 : 지지부재550: horizontal bar 560: support member

570 : 손잡이 580 : 받침부570: handle 580: support

600 : 제어부 700 : 고주파 발진부600: control unit 700: high frequency oscillation unit

800 : 전원부 900 : 냉각장치800: power supply 900: cooling device

Claims (2)

디젤엔진용 과급기의 터빈축과 터빈휠을 마찰용접하는 장치에 있어서,In the apparatus for friction welding a turbine shaft and a turbine wheel of a diesel engine supercharger, 상기 터빈휠의 돌출부에 열을 가하는 코일 형상의 가열부와;A coil-shaped heating unit for applying heat to the protrusion of the turbine wheel; 상기 가열부와 일체로 성형되고, 전후진과 회전이 가능한 열전달부재와;A heat transfer member integrally formed with the heating unit and capable of forward and backward rotation and rotation; 상기 열전달부재가 결합되고, 고주파 발진부와 연결되는 몸체를 포함하는 열 발생부; 로 이루어진 것을 특징으로 하는 마찰용접용 모재예열장치.A heat generator comprising a body coupled to the heat transfer member and connected to a high frequency oscillator; Friction welding substrate preheating device, characterized in that consisting of. 제 1항에 있어서,The method of claim 1, 상기 장치에는, 터빈휠에 가해진 열의 온도를 감지하는 센서와 상기 가열부를 받치는 단열재로 된 받침부를 더 포함한 것에 특징이 있는 마찰용접용 모재예열장치.The apparatus includes a sensor for sensing the temperature of the heat applied to the turbine wheel and a support portion made of a heat insulating material for supporting the heating portion.
KR20-2005-0027251U 2005-09-22 2005-09-22 Preheating device for friction welding KR200402669Y1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100746959B1 (en) * 2006-07-04 2007-08-07 현대자동차주식회사 Preheating welding method and device
US9566662B2 (en) 2013-04-11 2017-02-14 Fujico Co., Ltd. Method for manufacturing mill roll, mill roll and manufacturing apparatus of mill roll
KR101731904B1 (en) * 2016-09-26 2017-05-02 문명성 Friction welding method and preheating means having friction welding device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100746959B1 (en) * 2006-07-04 2007-08-07 현대자동차주식회사 Preheating welding method and device
US9566662B2 (en) 2013-04-11 2017-02-14 Fujico Co., Ltd. Method for manufacturing mill roll, mill roll and manufacturing apparatus of mill roll
US10155283B2 (en) 2013-04-11 2018-12-18 Fujico Co., Ltd. Method for manufacturing mill roll, mill roll and manufacturing apparatus of mill roll
KR101731904B1 (en) * 2016-09-26 2017-05-02 문명성 Friction welding method and preheating means having friction welding device

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