KR20070105948A - Roll-formed mash seam welding method and device of metallic plates - Google Patents

Roll-formed mash seam welding method and device of metallic plates Download PDF

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KR20070105948A
KR20070105948A KR1020070102574A KR20070102574A KR20070105948A KR 20070105948 A KR20070105948 A KR 20070105948A KR 1020070102574 A KR1020070102574 A KR 1020070102574A KR 20070102574 A KR20070102574 A KR 20070102574A KR 20070105948 A KR20070105948 A KR 20070105948A
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metal
roller
roll
electrode roller
trapezoidal
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KR100897679B1 (en
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진인태
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    • 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/06—Resistance welding; Severing by resistance heating using roller electrodes
    • B23K11/061—Resistance welding; Severing by resistance heating using roller electrodes for welding rectilinear seams
    • 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/34—Preliminary treatment
    • 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
    • B23K11/00—Resistance welding; Severing by resistance heating
    • B23K11/36—Auxiliary equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • 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
    • B23K2101/18—Sheet panels
    • 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
    • B23K2103/02—Iron or ferrous alloys

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

A method for welding a metallic plate material roll-formed mash seam, and a device thereof are provided to prevent thickness thereof from being increased by discharging a foreign material stuck to a side sectional surface of a metallic plate material and an oxide film simultaneously when forming an excessive metal. A method for welding a metallic plate material roll-formed mash seam includes a step of passing a folded surface of a side edge of two metallic plate materials which thicknesses are same or different, through a surface grinding roller and removing a foreign material and an oxide film on a metallic surface; a step of inserting the metallic plate material folded and constrained by a guide roller(3), into a stair-type electrode roller(4); a step of resistance-heating the metallic plate material folded by the upper and lower stair-type electrode rollers arranged continually at a vertical direction of a folded surface, and combining a side of the folded metallic plate material by strong rolling pressure as a roll interval of the stair-type electrode roller is decreased; a step of roll-forming an excessive metal pushed by a trapezoid empty space and a stair-type form of the stair-type electrode roller, by strong pressure; a step of discharging the foreign material and the oxide film of a side surface of the metallic plate material when roll-forming the excessive metal, to an outside of the surface; a step of cutting the discharged trapezoid excessive metal(13) by a saving blade(7); and a step of trimming the surface of the plate material combined by a flattening roller(8).

Description

금속판재 압연성형 매쉬심 용접방법 및 용접장치{Roll-Formed Mash Seam Welding Method and Device of Metallic Plates} Roll-Formed Mash Seam Welding Method and Device of Metallic Plates

두 장의 금속판재를 접합시킬 때 판재의 측단면을 중첩시키고 전극롤러를 사용하여 용접하는 매쉬심용접방법(Mash Seam Welding)에 있어서 전기저항에 의한 접합면상의 부분용융을 통한 용융응고 접합방법을 개선하는 기술이다. Improved the method of melt coagulation through partial melting on the joint surface by electric resistance in mash seam welding, where side sections of the sheet are overlapped and welded using an electrode roller when joining two sheets of metal sheets. It is a technique to do.

전기저항에 의하여 중첩된 금속판재를 용융하는 대신에 연속적으로 배열되어 있는 계단형전극롤러에 의해 고온상태로 연속가열하여 소성유동적으로 접합하는 고상용접방법이며 매쉬심용접시 중첩된 측단면을 압연하면서 중첩부분의 과잉소재가 판재상으로 퍼질 때 계단형전극롤러의 사다리꼴빈공간에 의해서 판재표면상에서 상하방향으로 과잉금속을 압연성형하면서 두께가 균일한 접합부를 가지는 금속판재를 연속적으로 강하게 접합하도록 하는 압연성형 매쉬심 소성유동 고상접합의 일종이다 Instead of melting the superimposed metal sheet by electric resistance, it is a solid-state welding method that is continuously heated at high temperature by a step-by-step electrode roller which is arranged continuously and plastically and fluidly bonded. Rolling to continuously bond the metal plate with uniform thickness while forming excess metal on the plate surface by the trapezoidal empty space of the stepped electrode roller when the excess material of the overlapping part is spread on the plate. Molded mesh seam Plastic flow is a kind of solid state bonding

금속판재의 용접방법은 크게 두 분야로 대별할 수 있는 데 용융용접과 압접용접이 있다. 용융용접방법으로서는 금속판재를 맞댄 부분에 강한 아크를 발생시켜 용융하는 맞대기아크용접법이 있으며 압접방법으로서는 판재를 중첩한 상태에서 전 기저항에의한 열과 가압력에 부분용융하는 저항용접법이 있다. The welding method of metal plate can be classified into two fields, melt welding and pressure welding. As a melt welding method, there is a butt arc welding method in which a strong arc is generated by melting a metal arc, but a melt is welded. A pressure welding method is a resistance welding method in which parts are melted by heat and pressure under electric resistance in a state where plate materials are overlapped.

판재를 중첩한 상태에서 전기저항에 의한 용접방법은 접합부분의 형태에 따라 점형태의 스폿용접(Spot welding) 및 특수형태의 프로젝션용접(Projetion welding)과 선형태의 심용접(Seam welding)이 있다. Welding method by electric resistance in the state of overlapping plate includes spot welding, special type of projection welding, and seam welding in line according to the shape of the joint. .

심용접에는 금속판재의 용접위치에 따라서 특별히 선단면을 중첩시켜 전기저항과 가압력에 의해 소성유동시키면서 용접하는 방법인 매쉬심용접(Mash Seam Welding)법과 금속판재의 선단면을 맞대어서 전기저항과 가압력에의해 접합하는 맞대기시임용접(Butt Seam Welding)이 있다. According to the welding position of the metal plate, the seam welding superimposes the end surface of the metal plate with the mesh seam welding method, which is a method of welding while welding plastic flow by electric resistance and pressing force. Butt seam welding is performed by welding.

그러나 이 때의 매쉬심용접은 전극롤러의 형상이 평판롤러의 형태를 가지고 있기 때문에 심용접할 때 중첩부분이 압착되면서 용접부의 두께가 두꺼워지는 단점이 있다. 이에 비해 맞대기시임용접은 금속판재를 맞댄 상태에서 전극롤러에 가압력에의해 용접부의 두께가 얇아지는 단점을 가지고 있다. 그리고 두 방법이 전기저항에 의한 부분용융응고에 의한 용접이며 용접후 용접부의 금속조직이 변하는 단점을 가지고 있다.However, in this case, since the shape of the electrode roller has the shape of a flat roller, the overlap of the overlapped portion is squeezed when the core is welded. On the other hand, butt weld welding has a disadvantage in that the thickness of the weld becomes thin due to the pressing force on the electrode roller in the state of facing the metal sheet. In addition, the two methods are welding by partial melting solidification due to electrical resistance, and the metal structure of the welding part is changed after welding.

따라서 본 발명은 상기의 매쉬심용접의 단점인 압착할 때 중첩면에서 소재의 퍼짐에 의한 용접부의 두께가 두꺼워지는 것을 막기 위하여 계단형전극롤러의 계단과 그 속에 있는 사다리꼴빈공간의 작용으로 과잉금속을 압연과 동시에 성형하면서 강하게 고상용접하도록 하여 매쉬심용접과 맞대기시임용접에서 문제점으로 지적되는 용접부 두께의 변화없이 균일하게 용접할 수 있는 새로운 금속판재 압연성형 매쉬심 용접(Extru-Rolling Mash Seam Welding)이 특징이다.  Therefore, the present invention is an excess metal by the action of the step of the stepped electrode roller and the trapezoidal empty space therein in order to prevent the thickness of the welded portion due to the spread of the material in the overlapping surface when the crimp which is a disadvantage of the mash seam welding Extru-Rolling Mash Seam Welding, which allows welding to be solid and solid at the same time as rolling, and enables uniform welding without changing the weld thickness, which is a problem in mash seam welding and butt welding. ) Is characteristic.

또한 전극롤러의 전기저항에의한 아크를 수반한 소재의 부분용융대신에 연속적으로 배열되어 있는 계단형전극롤러에 의해서 고온상태로 연속가열하여 열간소성유동상태인 금속소재로 압연될 때 중첩된 과잉소재를 금속판재 표면밖으로 강하게 성형함과 동시에 금속판재 측면에 있는 산화피막등의 불순물도 함께 배출하도록하여 금속조직이 균일하며 순수한 접합부를 가지는 금속판재로 고상접합되도록 하는 것이 특징이다. In addition, when the sheet is rolled to a metal material in hot firing flow state by continuous heating at high temperature by a stepped electrode roller arranged continuously instead of the partial melting of the material accompanied by the arc due to the electrical resistance of the electrode roller, The material is strongly molded out of the surface of the metal plate, and at the same time, it also discharges impurities such as an oxide film on the side of the metal plate so that the metal structure is solid-phase bonded to the metal plate having a uniform and pure junction.

심용점(Seam Welding)이나 매쉬심용접(Mash Seam Welding) 또는 맞대기심용접(Butt Seam Welding) 있어서는 전기저항에 의한 용융응고상태의 용접이기 때문에 전기저항에 의한 아크발생으로 인하여 환경적인 문제점과 접합후 두께가 두꺼워지든지 얇아지는 문제점을 가지고 있으며 용접부의 부분용융응고접합으로 인한 금속조직의 변화로 용접강도에도 문제점을 내포하고 있다. In seam welding, mash seam welding or butt seam welding, it is the welding of melt-solidified state by electric resistance. It has a problem that the thickness becomes thin or thin, and the welding strength is also implicated due to the change in the metal structure due to the partial melt solidification joint of the weld.

따라서 아크를 발생하지 않고 중첩된 금속판재의 측단면을 연속되어 배열되어 있는 계단형전극롤러에 의한 전기저항으로 고온상태로 연속가열하여 아크가 발생하는 환경적인 문제점을 해결하고 중첩된 과잉금속를 압연성형(Roll Forming)하여 사다리꼴과잉금속으로 성형될 때 금속판재의 측단면에 있던 불순물과 산화피막도 함께 배출되도록 함과 동시에 두께와 금속조직이 균일하며 순수한 상태의 금속판재를 소성유동적으로 강하게 맞대기 압연성형 매쉬심용접할 수 있는 접합방법과 접합장치를 해결과제로 한다. Therefore, it solves the environmental problem of arc generation by continuous heating at high temperature with the electric resistance by the step-type electrode rollers arranged in succession to the side cross-sections of the superposed metal sheets without generating arcs, and rolling overlapping excess metal. (Roll Forming) When it is formed into trapezoidal excess metal, it releases impurities and oxide film on the side surface of the metal sheet together with the same thickness and metal structure, and it is strong and plastic butt-rolled forming of pure metal sheet. The welding method and the welding device which can weld a mesh seam are made into a problem.

금속조직의 변화를 최소한 줄이기 위해서는 금속판재를 부분적으로 용융하지 않고 소성유동적으로 강하게 압착하는 고상용접이 되어야하는 데 고상용접은 밀폐형 금형공간내에서 성형등의 방법으로 소재를 배출하면서 강한 압력을 부여해야 하는 단점이 있다. 또한 기존의 매쉬심용접 전극롤러의 형상이 평판형롤러의 형태를 가지고있기 때문에 매쉬심용접할 때 중첩부분이 퍼지며 두께가 두꺼워지는 단점이 있다. In order to minimize the change of the metal structure, it should be solid phase welding which is pressed strongly and plastically without partially melting the metal plate. Solid phase welding should give strong pressure while discharging the material by forming method in the closed mold space. There is a disadvantage. In addition, since the shape of the conventional mesh seam welding electrode roller has the form of a flat roller, the overlapping portion spreads and the thickness becomes thick when the mesh seam welding is performed.

이를 해결하기 위하여 압연할 때 중첩면에서 소재의 퍼짐을 막고 표면상하로 과잉금속을 성형할 수 있도록 계단형전극롤러의 계단과 사다리꼴빈공간을 설치하여 밀폐형성형공간을 만들어 과잉소재의 퍼짐을 막으면서 강하게 접합하도록 함과 동시에 과잉금속이 성형될 때 금속판재의 측단면에 있던 불순물과 산화피막도 함께 배출되도록 하여 두께가 두꺼워지지 않도록 하는 것이 해결되어야 할 과제이다. In order to solve this problem, to prevent the spread of the material at the overlapping surface and to install the excess metal above and below the surface, the staircase and the trapezoidal empty space of the stepped electrode roller are installed to create a closed space to prevent the spread of the excess material. It is a problem to be solved so as not to increase the thickness by making a strong bonding and at the same time to discharge the impurities and the oxide film on the side surface of the metal plate when the excess metal is molded.

또한 연속적으로 배열되어있는 계단형전극롤러에 의해서 용융할 정도의 전기저항 대신에 전류를 조정하여 고온상태의 연속가열을 통하여 아크발생을 저지하여 환경적인 문제가 발생하지 않도록 하며 고상상태의 용접으로써 용접부 금속조직을 균일하게 하는 것이 해결과제이다.In addition, by adjusting the electric current instead of the melting resistance by the stepped electrode rollers arranged continuously, it prevents the occurrence of the arc through continuous heating in high temperature state so that environmental problems do not occur. The problem is to make the metal structure uniform.

아크가 발생하지 않는 전기저항용접으로 연속적으로 두 금속판재의 측단을 강하게 접합하도록 하는 고상상태의 용접이기 때문에 용접부의 조직에 변화가 없으며 용접강도가 우수하다. 또한 과잉금속이 성형되면서 접합되기 때문에 두께가 두꺼워지지 않으며 계단형전극롤러와 사다리꼴빈공간의 형상에 의해서 과잉금속이 사다리꼴과잉금속으로 성형될 때 금속판재의 측단면에 있던 불순물과 산화피막도 함께 배출되는 효과도 가지고 있다.It is a solid state welding that strongly joins the side ends of two metal plates continuously by electric resistance welding that does not generate arc, so there is no change in the structure of the welded portion and the welding strength is excellent. In addition, because the excess metal is molded and bonded, the thickness is not increased. When the excess metal is formed into the trapezoidal excess metal by the shape of the stepped electrode roller and the trapezoidal empty space, the impurities and the oxide film on the side surface of the metal sheet are discharged together. It also has the effect.

일반적인 심용접기의 전극롤러의 형상은 평판형이기 때문에 중첩된 금속판재(1)가 압연될 때 과잉금속이 퍼짐으로 인하여 용접후의 판재두께가 두꺼워져 추 가공정이 필요하고 또한 평판전극롤러의 형상으로 인한 열린 공간상의 압연이기 때문에 접합압력이 전단력에 의한 접합이기보다는 단조형의 접합에 가깝다. 따라서 접합면에서의 고상용접이 곤란하여 전기저항에의한 용융용접이 필수적이다. 그러나 접합면을 하중방향과 일치하도록 하여 접합시에 전단에 의한 접합으로 유도하면 접합면을 용융시키지 않고도 열간상태의 금속을 강한 전단력에 의해서 고상접합시키는 것이 가능하다.Since the shape of the electrode roller of the general seam welder is flat, the excess metal spreads when the superimposed metal sheet 1 is rolled, so that the thickness of the plate after welding becomes thick, which requires additional machining, and also due to the shape of the flat electrode roller. Because of rolling in an open space, the joining pressure is closer to the forging type rather than the shearing. Therefore, solid-state welding at the joining surface is difficult, and melt welding by electric resistance is essential. However, if the joining surface is matched with the load direction and guided to shearing at the time of joining, it is possible to solidify the hot state metal by the strong shearing force without melting the joining surface.

접합면을 하중방향과 일치시키는 한 가지 방법으로서 기존의 심용접에 사용되는 평판전극롤러의 형상을 사다리꼴빈공간(5)을 가지고 있는 계단형전극롤러(4)로 바꾸고 연속적으로 배열하여 점차적으로 중첩된 금속판재(1)의 측단면을 압연할 때 계단형전극롤러(4)의 계단형태에 따라 벽을 형성하게 되어 이동하는 소재의 퍼지는 것을 막으면서 계단형전극롤러(4)내부에 사다리꼴빈공간(5)속으로 과잉금속(13)이 하중방향으로 성형되도록 하게 되면 접합면에서 강한 전단력이 발생되어 소재를 용융시키지않고도 강한 압연성형력으로써 고상접합이 가능하게 된다.As a method of matching the joint surface with the load direction, the shape of the flat plate electrode roller used for core welding is changed to a stepped electrode roller (4) having a trapezoidal empty space (5) and arranged in succession and gradually overlapped. When rolling the side cross-section of the metal sheet 1, the trapezoidal empty space is formed inside the stepped electrode rollers 4 while forming walls along the stepped shape of the stepped electrode rollers 4 to prevent the spreading of the moving material. (5) When the excess metal 13 is molded in the load direction, a strong shear force is generated at the joint surface, so that solid-state bonding is possible with strong rolling forming force without melting the material.

계단형전극롤러(4)를 사용하여 발명의 목적을 달성하기 위한 방법은 다음의 단계를 포함하고 있다.The method for achieving the object of the invention using the stepped electrode roller 4 includes the following steps.

두 장의 두께가 같거나 다른 금속판재 측단모서리의 중첩될 표면이 표면연삭롤러(2)를 통과하면서 금속표면상에 있던 불순물과 산화피막을 벗겨 내는 단계; 안내롤러(3)에 의해 중첩되어 구속된 상태에서 중첩된 금속판재(1)을 계단형전극롤러(4)속으로 삽입하는 단계; 중첩된 면에 수직방향으로 각각 한 쌍씩 연속적으로 배열되어 있는 상하부 계단형전극롤러(4)로써 중첩된 금속판재를 저항가열하면서 계단형전극롤러(4)의 롤간격을 점차 줄일 때 강한 압연성형압력으로 중첩된 판재측단을 접합하는 단계; 접합과 동시에 계단형전극롤러(4)의 계단형상과 사다리꼴빈공간(5)에 의해서 밀려나오는 과잉금속을 강한 압력으로 압연하면서 성형하는 단계; 과잉금속이 압연성형될 때 금속판재 측단면에 있는 불순물과 산화피막도 동시에 표면밖으로 배출되는 단계; 압연성형후 배출된 사다리꼴과잉금속(13)을 세이빙칼날(7)로써 절삭하는 단계; 플랫트닝롤러(8)로써 접합된 판재의 표면을 다듬는 단계;의 접합방법으로 구성되어 있다.Peeling off the impurities and the oxide film on the metal surface while the surfaces to be overlapped with the same thickness of the two sheets or the overlapping edges of the metal sheet side pass through the surface grinding roller 2; Inserting the superimposed metal sheet 1 into the stepped electrode roller 4 in the state of being superimposed and restrained by the guide roller 3; Strong rolling forming pressure when gradually reducing the roll spacing of the stepped electrode rollers 4 while resistively heating the overlapping sheet metal with a pair of upper and lower stepped electrode rollers 4 continuously arranged in a vertical direction on the overlapped surface. Bonding the overlapping plate side ends; Simultaneously forming a step of rolling the excess metal pushed out by the step shape of the stepped electrode roller 4 and the trapezoidal empty space 5 at a high pressure with bonding; Simultaneously discharging the impurities and the oxide film on the side surface of the metal plate when the excess metal is rolled out of the surface; Cutting the trapezoidal excess metal 13 discharged after the rolling molding with a shaving blade 7; It is composed of the joining method of the; step of smoothing the surface of the plate joined by the flat-tensioning roller (8).

또한 계단형전극롤러(4)를 사용하여 상기목적을 달성하기 위해서 다음의 접합장치인 접합하고자 하는 두 장의 금속판재(1); 두 장의 중첩되는 금속판재의 접촉면을 연삭하는 한 개의 표면연삭롤러(2); 두 금속판재의 연삭된 면을 중첩시키며 구속된 금속판재를 계단형전극롤러(4)에 삽입하는 한 쌍의 안내롤러(3); 삽입된 중첩된 판재를 부분가열함과 동시에 압연성형하며 연속되어 배열되어 있는 계단형전극롤러(4); 계단형형전극롤러(4)의 계단면과 금속판재(1)와의 접촉하는 면에 형성된 사다리꼴빈공간(5); 접합된 금속판재의 상하 표면상으로 압연성형되어 나온 사다리꼴과잉금속(13)를 세이빙하는 세이빙칼날(7); 접합된 판재의 표면을 다듬는 플랫트닝롤러(8); 계단형전극롤러(4)와 구속안내롤러(6)를 지지하는 전극롤러지지암(9); 연속되어 배열되어 있는 전극롤러지지암을 연결지지하는 전극롤러지지프레임(10); 계단형전극롤러(4)에 전원을 공급하는 전원장치; 로 구성되어 있다.In addition, to achieve the above object using a stepped electrode roller (4) two sheets of metal sheet to be joined, which is the next joining device (1); One surface grinding roller 2 for grinding the contact surfaces of two overlapping metal sheets; A pair of guide rollers 3 which overlap the ground surfaces of the two metal sheets and insert the constrained metal sheets into the stepped electrode rollers 4; A stepped electrode roller 4 which is partially heated while simultaneously inserting the inserted superimposed sheet material and being arranged continuously; A trapezoidal empty space 5 formed on a surface of the stepped electrode roller 4 in contact with the step surface and the metal plate 1; A shaving blade 7 for saving the trapezoidal excess metal 13 which has been roll-molded onto the upper and lower surfaces of the joined metal sheet; A flat-tensioning roller 8 for smoothing the surface of the joined sheet material; An electrode roller support arm 9 for supporting the stepped electrode roller 4 and the restriction guide roller 6; An electrode roller support frame 10 supporting the electrode roller support arms arranged in series; A power supply device for supplying power to the stepped electrode rollers 4; Consists of

위의 용접방법과 용접장치로써 두 장의 금속판재(1)를 아크가 발생하지 않고 중첩표면과 측단면에 붙어있는 불순물과 산화피막을 제거한 상태의 순수한 금속만 으로 강하게 소성유동접합하도록 하는 금속판재(1) 압연성형 매쉬심 용접방법과 용접장치가 본원발명의 특징이다.The above metal plate material (2) is strongly plastic flow-bonded by the above welding method and the welding device only with pure metal in the state of removing the impurities and the oxide film on the overlapping surface and the side cross-section without arcing. 1) Roll forming mesh seam welding method and welding device are features of the present invention.

도 1과 도 2는 계단형전극롤러(4)에 사다리꼴빈공간(5)이 형성되어 있는 계단형전극롤러(4)의 단면도와 사시도를 도시하고 있다.1 and 2 show a cross-sectional view and a perspective view of a stepped electrode roller 4 in which a trapezoidal empty space 5 is formed in the stepped electrode roller 4.

기존의 심용접에 사용되는 평판전극롤러를 사용하는 대신에 계단형전극롤러(4)를 사용하고 계단아랫부분의 판재와 접촉하는 부분에 사다리꼴빈공간(5)이 형성되어 있는 비교적 구조가 간단한 형태이기 때문에 접합과정중에 판재표면밖으로 과잉금속(13)을 쉽게 압연성형할 수 있도록 되어 있어 과잉금속(13)이 압연성형과정중에 압출되도록하여 강하게 접합할 수 있도록 사다리꼴빈공간(5)의 형상을 높이가 낮고 폭이 넓은 사다리꼴형태에서 점차 높이는 크게 하면서 폭을 줄여 접합압력을 높이면서 압연하도록 한 것이 특징이다. 이때 압출된 과잉금속(13)은 세이빙칼날(7)에 의해서 절삭가공공정을 추가함으로써 쉽게 단락시킬 수 있다. Rather than using a flat electrode roller used for conventional seam welding, a stepped electrode roller 4 is used and a relatively simple structure in which a trapezoidal empty space 5 is formed at a part contacting with a plate at the bottom of the step. Therefore, the excess metal 13 can be easily rolled out of the surface of the plate during the joining process, so that the shape of the trapezoidal hollow space 5 can be raised so that the excess metal 13 can be extruded during the rolling forming process so as to be strongly joined. The low and wide trapezoidal shape is characterized by rolling while increasing the bonding pressure by increasing the height while gradually increasing the height. At this time, the extruded excess metal 13 can be easily shorted by adding a cutting process by the shaving blade (7).

도 3은 계단형전극롤러(4)를 사용한 금속판재 압연성형 매쉬심 용접순서도로서 중첩된 면에 수직방향으로 각각 한 쌍씩 연속적으로 배열되어 있는 상하부 계단형전극롤러(4)로써 중첩된 금속판재(1)를 저항가열하면서 계단형전극롤러(4)의 롤간격을 점차 줄일 때 강한 압연성형압력으로 중첩된 판재측단을 접합함과 동시에 접합할 때 사다리꼴빈공간(5)으로 과잉금속(12)이 밀려 나가면서 금속판재(1) 측단면에 있는 불순물과 산화피막도 동시에 접합판재(11) 표면밖으로 배출되는 것을 도시하고 있다. 3 is a metal sheet roll forming mesh seam welding flow chart using a stepped electrode roller 4, and a metal sheet overlapped with upper and lower stepped electrode rollers 4 which are continuously arranged in a vertical direction on the superposed surface. When 1) is gradually heated and the roll gap of the stepped electrode rollers 4 is gradually reduced, the overlapping plate side ends are joined together with a strong rolling forming pressure and at the same time, the excess metal 12 is trapped in the trapezoidal empty space 5. While being pushed out, impurities and oxide films on the side surface of the metal sheet 1 are simultaneously discharged out of the surface of the joining plate 11.

사다리꼴빈공간(5)의 단면형상은 처음에 높이가 낮고 폭이 넓은 사다리꼴 형 상으로부터 시작되어 점차 좁고 높은 사다리꼴빈공간(5)으로 되어 있어 연속적으로 배열되어 있는 계단형전극롤러(4)에 의해서 압연과 동시에 사다리꼴과잉금속(13)을 쉽게 압연성형할 수 있도록 되어 있다.The cross-sectional shape of the trapezoidal empty space 5 is first started from a low and wide trapezoidal shape and gradually becomes a narrow and high trapezoidal empty space 5 so that the stepped electrode rollers 4 are continuously arranged. Simultaneously with rolling, the trapezoidal excess metal 13 can be roll-molded easily.

도 4는 금속판재(1) 압연성형 매쉬심 용접공정도로서 두 장의 두께가 같은 금속판재(1) 측단모서리의 중첩될 표면이 표면연삭롤러(2)를 통과하면서 금속표면상에 있던 불순물과 산화피막을 벗겨 낸 다음 안내롤러(3)에 의해 중첩되어 구속된 상태에서 중첩된 판재금속을 계단형전극롤러(4)속으로 삽입하는 하게 된다. 이 때 중첩된 면에 수직방향으로 각각 한 쌍씩 연속적으로 배열되어 있는 상하부 계단형전극롤러(4)로써 중첩된 금속판재(1)를 저항가열하면서 계단형전극롤러(4)의 롤간격을 점차 줄일 때 강한 압연압력으로 중첩된 판재측단을 접합하게 된다. 접합할 때 사다리꼴빈공간(5)으로 과잉금속(13)이 밀려 나가면서 금속판재(1) 측단면에 있는 불순물과 산화피막도 동시에 접합판재(11) 표면밖으로 배출된 후 세이빙칼날(7)에의해 압연성형된 사다리꼴과잉금속(13)이 세이빙절삭된 후 플랫트닝롤러(8)에 의해서 마무리 압연되는 것을 도시하고 있다.FIG. 4 is a flow chart of a metal sheet (1) roll forming mesh seam welding process wherein the surface of the metal sheet (1) side edges having the same thickness of two sheets overlaps the surface grinding roller (2) to remove impurities and oxide films on the metal surface. After peeling off, the overlapping sheet metal is inserted into the stepped electrode roller 4 in the state of being restrained by being superposed by the guide roller 3. At this time, the roll spacing of the stepped electrode rollers 4 is gradually reduced while resistance heating the overlapped metal sheet material 1 with the upper and lower stepped electrode rollers 4 arranged in a row in the vertical direction on the overlapped surface. At the time of joining the overlapping plate side ends with a strong rolling pressure. At the time of joining, the excess metal 13 is pushed out into the trapezoidal empty space 5, and the impurities and the oxide film on the side surface of the metal sheet 1 are simultaneously discharged out of the surface of the joining plate 11 and then to the saving blade 7. It is shown that the trapezoidal excess metal 13 formed by sea rolling is finish-rolled by the flat-tensioning roller 8 after shaving cutting.

도 5는 계단형전극롤러(4)를 사용한 접합후의 계단형전극사용접합판재(11) 형상을 도시하고 있으며 판재접합후 표면에 사다리꼴과잉금속(13)이 붙어 있는 형상을 나타내고 있다. 사다리꼴과잉금속(13)은 세이빙칼날(7)에 의하여 세이빙 절삭으로 제거한 후 플랫트닝롤러(8)로써 마무리 압연을 통하여 표면을 다듬질하게 된다.Fig. 5 shows the shape of the stepped electrode-use bonded plate material 11 after the joining using the stepped electrode roller 4, and shows the shape in which the trapezoidal excess metal 13 is attached to the surface after the plate-bonded electrode. The trapezoidal excess metal 13 is removed by shaving cutting by the shaving blade 7 and then the surface is polished by finishing rolling with the flat-tensioning roller 8.

도 6은 사다리꼴과잉금속(13)이 붙어 있는 계단형전극사용접합판재(11)와 사 다리꼴과잉금속(13)을 세이빙절삭하는 세이빙칼날(7)을 도시하고 있다.FIG. 6 shows a stepped electrode-use bonding plate 11 having a trapezoidal excess metal 13 and a saving blade 7 for saving and cutting the trapezoidal excess metal 13.

기존의 금속판재의 맞대기용접시 사용하는 아크용접방법을 전기저항용접으로 대체하는 효과가 있으며 아크가 발생하는 환경적인 문제점을 해결하고 금속조직과 두께의 변화없이 강한 접합력으로 접합할 수 있기 때문에 앞으로 금속판재의 맞대기 용접분야에 전기저항 고상용접법이 활발히 응용될 것으로 기대된다.It is effective to replace the arc welding method used for butt welding of existing metal plate with electric resistance welding, and to solve the environmental problem of arc generation and to join with strong bonding force without changing the metal structure and thickness. It is expected that the electric resistance solid-state welding method will be actively applied to the butt welding of sheet materials.

도 1은 계단형전극롤러 및 사다리꼴빈공간의 측면단면도.1 is a side cross-sectional view of a stepped electrode roller and a trapezoidal empty space.

도 2는 계단형전극롤러 및 사다리꼴빈공간의 사시도.2 is a perspective view of a stepped electrode roller and a trapezoidal empty space;

도 3은 계단형전극롤러를 사용한 금속판재 압연성형 매쉬심 용접순서도.Figure 3 is a metal sheet roll forming mash seam welding flowchart using a stepped electrode roller.

도 4는 계단형전극롤러를 사용한 금속판재 압연성형 매쉬심 공정도4 is a process chart of metal sheet roll forming mesh seam using a stepped electrode roller

도 5는 사다리꼴과잉금속이 붙어있는 접합후의 판재형상5 is a plate shape after joining trapezoidal excess metal

도 6은 사다리꼴과잉금속을 절삭하는 세이빙칼날의 형상도6 is a shape of the shaving blade for cutting the trapezoidal excess metal

<도면의 주요한 부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>

1:금속판재 2:표면연삭롤러 3:안내롤러 4:계단형전극롤러 5:사다리꼴빈공간 6:구속안내롤러 7:세이빙칼날 8:플랫트닝롤러 9:전극롤러지지암 10:전극롤러지지프레임 11:계단형전극사용접합판재 12:과잉금속 13:사다리꼴과잉금속 DESCRIPTION OF SYMBOLS 1: Metal plate material 2: Surface grinding roller 3: Guide roller 4: Stepped electrode roller 5: Trapezoidal space 6: Binding guide roller 7: Shaving blade 8: Flattening roller 9: Electrode roller Support arm 10: Electrode roller support frame 11: Stepped electrode-use bonding plate 12: Excess metal 13: Trapezoidal excess metal

Claims (3)

두 장의 두께가 같거나 다른 금속판재 측단모서리의 중첩될 표면이 표면연삭롤러를 통과하면서 금속표면상에 있던 불순물과 산화피막을 벗겨 내는 단계; 안내롤러에 의해 중첩되어 구속된 상태에서 중첩된 판재금속을 계단형전극롤러속으로 삽입하는 단계; 중첩된 면에 수직방향으로 각각 한 쌍씩 연속적으로 배열되어 있는 상하부 계단형전극롤러로써 중첩된 금속판재를 저항가열하면서 계단형전극롤러의 롤간격을 점차 줄일 때 강한 압연성형압력으로 중첩된 판재측단을 접합하는 단계; 접합과 동시에 계단형전극롤러의 계단형상과 사다리꼴빈공간에 의해서 밀려나오는 과잉금속을 강한 압력으로 압연하면서 성형하는 단계; 과잉금속이 압연성형될 때 금속판재 측단면에 있는 불순물과 산화피막도 동시에 표면밖으로 배출되는 단계; 압연성형후 배출된 사다리꼴과잉금속을 세이빙칼날로써 절삭하는 단계; 플랫트닝롤러로써 접합된 판재의 표면을 다듬는 단계;의 접합방법으로써 두 장의 금속판재를 아크가 발생하지 않고 중첩표면과 측단면상에 붙어있는 불순물과 산화피막을 제거한 상태로 두께와 금속조직이 균일한 순수한 금속만으로 강하게 소성유동접합하도록 하는 금속판재 압연성형 매쉬심 용접방법.Peeling off the impurities and the oxide film on the metal surface while the surfaces to be overlapped of the two side edges of the same or different metal sheet pass through the surface grinding roller; Inserting the superposed sheet metal into the stepped electrode rollers while being superposed and restrained by the guide rollers; The upper and lower stepped electrode rollers are arranged in a row in the vertical direction on the overlapped surface, and the sheet side ends are overlapped with a strong rolling forming pressure when resistance heating of the overlapped metal sheet is gradually reduced while the roll gap of the stepped electrode roller is gradually reduced. Splicing; Simultaneously forming a step of rolling the excess metal which is pushed out by the step shape and the trapezoidal empty space of the stepped electrode roller at a high pressure; Simultaneously discharging the impurities and the oxide film on the side surface of the metal plate when the excess metal is rolled out of the surface; Cutting the trapezoidal excess metal discharged after the rolling molding with a shaving blade; Smoothing the surface of the plate joined by the flat-tensioning roller; the metal sheet is uniform in thickness and metal structure without the arc and the impurities and the oxide film on the overlapping surface and the side cross-section removed without arcing. Metal sheet roll forming mash seam welding method to strongly plastic flow bonding only with pure metal. 접합하고자 하는 두 장의 금속판재; 두 장의 중첩되는 금속판재의 접촉면을 연삭하는 한 개의 표면연삭롤러; 두 금속판재의 연삭된 면을 중첩시키며 구속된 금속판재를 계단형전극롤러에 삽입하는 한 쌍의 안내롤러; 삽입된 중첩된 판재를 부 분가열함과 동시에 압연성형하며 연속되어 배열되어 있는 계단형전극롤러; 계단형형전극롤러의 계단면과 금속판재와의 접촉하는 면에 형성된 사다리꼴빈공간; 접합된 금속판재의 상하 표면상으로 압연성형되어 나온 사다리꼴과잉금속를 세이빙하는 세이빙 칼날; 접합된 판재의 표면을 다듬는 플랫트닝롤러; 계단형전극롤러와 구속안내롤러를 지지하는 전극롤러지지암; 연속되어 배열되어 있는 전극롤러지지암을 연결지지하는 전극롤러지지프레임; 계단형전극롤러에 전원을 공급하는 전원장치; 로 구성되어 있는 접합장치로써 두 장의 금속판재를 아크가 발생하지 않고 중첩표면과 측단면에 있는 불순물과 산화피막을 제거한 상태로 두께와 금속조직이 균일한 순수한 금속만으로 강하게 소성유동접합하도록 하는 금속판재 압연성형 매쉬심 용접장치.Two sheets of metal sheet to be joined; One surface grinding roller for grinding the contact surfaces of two overlapping metal sheets; A pair of guide rollers which overlap the ground surfaces of the two metal sheets and insert the constrained metal sheets into the stepped electrode rollers; A stepped electrode roller which is partially heated and simultaneously rolled and inserted with the inserted superimposed sheet material; A trapezoidal empty space formed on a surface of the stepped electrode roller in contact with the metal plate; A shaving blade for saving the trapezoidal excess metal that has been roll-molded onto the upper and lower surfaces of the joined metal sheet; Flat-tensioning rollers for smoothing the surface of the joined sheet; An electrode roller support arm supporting the stepped electrode roller and the restriction guide roller; An electrode roller support frame supporting the electrode roller support arms arranged in series; A power supply device for supplying power to the stepped electrode rollers; Metal joining device that consists of two sheets of metal plate material, which does not generate arc and removes impurities and oxide film on the overlapping surface and side cross-section, and strongly plastic flow joining with pure metal of uniform thickness and metal structure. Roll forming mesh seam welding device. 제 1항에 있어서 두께가 같거나 다른 금속판재 압연성형 매쉬심 용접할 때 점진적으로 압연이 가능하도록 연속되어 있는 계단형전극롤러의 속에 있는 사다리꼴빈공간의 형상이 높이가 낮고 폭이 넓은 사다리꼴 형상에서부터 높이가 높고 폭이 좁은 사다리꼴빈공간을 가진 계단형전극롤러를 연속적으로 배열하여 과잉금속을 압연성형하면서 금속판재를 소성유동접합하도록 하는 금속판재 압연성형 매쉬심 용접방법.The method of claim 1, wherein the shape of the trapezoidal hollow spaces in the stepped electrode rollers that are continuous so as to be gradually rolled when welding the metal sheet roll forming mesh seam of the same or different thicknesses is from the low and wide trapezoidal shape. A metal sheet roll forming mash seam welding method in which a stepped electrode roller having a high height and a narrow trapezoidal empty space is continuously arranged to plastically flow-bond metal sheets while rolling forming excess metal.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2463115C1 (en) * 2011-06-21 2012-10-10 Александр Иванович Трайно Cold rolling of steel strips
CN104668758A (en) * 2015-03-13 2015-06-03 沈阳朝兴焊接设备有限公司 Roll spot welding machine

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* Cited by examiner, † Cited by third party
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JP3129042B2 (en) * 1993-08-06 2001-01-29 株式会社日立製作所 Method and apparatus for joining hot rolled materials
EP0757931A4 (en) * 1995-02-23 1998-11-25 Toyota Motor Co Ltd Mush-seam welding method and mush-seam welding machine
KR100622524B1 (en) * 2005-03-08 2006-09-13 진인태 Apparatus and method for hot bonding metal plates
KR100743858B1 (en) 2005-12-30 2007-07-30 주식회사 성우하이텍 A seam-welding machine using hot roller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2463115C1 (en) * 2011-06-21 2012-10-10 Александр Иванович Трайно Cold rolling of steel strips
CN104668758A (en) * 2015-03-13 2015-06-03 沈阳朝兴焊接设备有限公司 Roll spot welding machine

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