KR20140026761A - Friction stir welding hole filling device and method - Google Patents

Friction stir welding hole filling device and method Download PDF

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Publication number
KR20140026761A
KR20140026761A KR1020120092304A KR20120092304A KR20140026761A KR 20140026761 A KR20140026761 A KR 20140026761A KR 1020120092304 A KR1020120092304 A KR 1020120092304A KR 20120092304 A KR20120092304 A KR 20120092304A KR 20140026761 A KR20140026761 A KR 20140026761A
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South Korea
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welding
hole
friction stir
cylindrical
metal
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KR1020120092304A
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Korean (ko)
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진인태
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부경대학교 산학협력단
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Priority to KR1020120092304A priority Critical patent/KR20140026761A/en
Publication of KR20140026761A publication Critical patent/KR20140026761A/en

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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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-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
    • B23K20/122—Non-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
    • B23K20/1245—Non-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
    • B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-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
    • B23K20/1205—Non-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
    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-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
    • B23K20/122—Non-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
    • B23K20/1245—Non-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
    • B23K20/125—Rotary tool drive mechanism
    • 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
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/26—Auxiliary equipment

Abstract

The present invention relates to a friction stir welding hole filling device for filling a hole left after friction stir welding, and a welding method using the same. A cylindrical rotation tool of friction stir welding is rotated while being inserted into a welding metal plate at the same time. A metal on a welding line is stored by being backward extruded with a cavity of the cylindrical rotation tool. Moving and welding of the cylindrical rotation tool are completed. A hole of a welding part is filled by extruding a metal material stored in the cavity inside the cylindrical rotation tool with a hole filling extrusion rod into the hole of a welding part generated when the cylindrical rotation tool returns to an outside of the welding metal plate.

Description

마찰교반용접 구멍메움 장치 및 그를 이용한 용접방법{Friction Stir Welding Hole Filling Device and Method}Friction Stir Welding Hole Filling Device and Welding Method

본 발명은 마찰교반용접 후에 남게 되는 용접구멍을 메우는 마찰교반용접 구멍메움장치 및 그를 이용한 용접방법에 관한 것이다.The present invention relates to a friction stir welding hole filling device for filling a welding hole left after friction stir welding, and a welding method using the same.

일반적으로 마찰교반용접(Friction stir Welding, FSW)은 용접하고자하는 두 금속판재를 맞대어서 고정시킨 후, 이음부인 용접선을 따라 마찰열과 금속교반에 의한 소성유동을 이용하여 두 금속판을 용접하는 마찰교반용접 방법과 두 금속판재를 중첩하여 한점에서 마찰열과 금속교반에 의한 소성유동을 이용하여 점용접하는 마찰교반 점용접등에 있어서 마찰교반용접 후 회전공구의 복귀시 남게 되는 용접판상의 구멍을 메우는 장치와 방법으로 이러한 마찰교반용접장치는 피가공재인 용접금속판보다 경도가 우수한 재질로 이루어진 회전공구와, 상기 회전공구를 회전시키는 구동부재를 포함하고 있다.
In general, friction stir welding (FSW) is made by welding two metal plates to be welded together, and then friction stir welding welding two metal plates using friction heat and plastic flow by metal stirring along the weld line. Method and apparatus for filling the hole in the welding plate left after the return of the rotary tool after friction stir welding in friction stir spot welding, etc., in which spot welding is carried out by overlapping two metal sheets and using frictional heat and plastic flow by metal stirring at one point. The friction stir welding device includes a rotary tool made of a material having a hardness higher than that of a welded metal plate as a workpiece, and a driving member for rotating the rotary tool.

상기의 마찰교반용접은 용접하고자하는 두 금속판재를 맞대어서 고정시킨 후, 이음부인 용접선을 따라 마찰열과 금속교반에 의한 소성유동을 이용하여 두 금속판을 용접하는 것으로, 기구가 삽입된 부분 주위로 연화된 소위“서드바디(Third-body)”라고 불리는 소성유동영역이 생성되며, 용접금속판재에 비해 경한 재질을 지닌 비소모식 회전 기구(Tool)의 일부분이 삽입되도록 하여 상기 기구와 용접금속판재의 상대적 운동에 의해 마찰열을 발생시켜 연화시키기에 충분한 온도로 인접한 접합부를 가열시키게 된다.
In the above friction stir welding, the two metal sheets to be welded are fixed to each other, and then welded to the two metal sheets using friction heat and plastic flow by metal stirring along the weld line, which is softened around the part where the apparatus is inserted. A plastic flow zone called “third-body” is created, and a portion of the non-consumable rotating tool, which is harder than that of the welded metal sheet, is inserted so that the relative portion of the tool and the welded metal sheet is inserted. Movement causes heating of adjacent junctions to a temperature sufficient to generate and soften frictional heat.

본 발명의 목적은 마찰교반용접 후 회전공구의 제거 시 남게 되는 용접판상의 구멍을 메우는 구멍메움장치와 그 장치를 이용한 용접방법을 제공하는 것을 그 목적으로 한다.An object of the present invention is to provide a hole filling device for filling the hole on the weld plate that remains during removal of the rotary tool after friction stir welding and a welding method using the device.

본 발명은 두 금속판을 맞대어서 고정시킨 후, 이음부인 용접선을 따라 마찰열과 금속교반에 의한 소성유동을 이용하여 두 금속판을 용접하는 마찰교반용접으로서, 마찰교반용접을 위한 원통형 회전공구의 회전과 동시에 두장의 용접금속판에 소성유동부의 금속소재에 삽입되면서 용접선상에 있는 두장의 용접금속판상으로 삽입되는 원통형 회전공구의 부피만큼의 용접금속판의 소성유동부의 금속소재가 원통형 회전공구 내부에 있는 원통형 회전공구 캐비티로 후방 압출하여 밀려나가 저장한 다음, 원통형 회전공구의 이동과 용접이 완료되어 원통형 회전공구가 용접금속판 밖으로 복귀할 때 생기는 용접판 구멍속으로 원통형 회전공구 내의 캐비티에 밀려나가 저장되어 있는 소성유동부의 금속소재를 구멍메움 압출봉으로써 압출함으로 소성유동부의 금속소재가 밀려나와 용접된 금속판의 구멍을 메움으로써 마찰교반용접 후에 남게 되는 구멍을 메우는 특징을 가진 마찰교반용접 구멍메움 장치 및 그를 이용한 용접방법에 관한 것이다.
The present invention is a friction stir welding for welding two metal plates using friction heat and plastic flow by metal stirring along the weld line, which is fixed to each other, and at the same time as the rotation of the cylindrical rotary tool for friction stir welding. Cylindrical rotary tool inside the cylindrical rotating tool where the metal material of the plastic flow portion of the welded metal sheet is inserted into the two welded metal sheets into the metal material of the plastic flow section and inserted into the two welded metal plates on the welding line. Plastic flow, which is pushed back into the cavity, pushed out and stored, and then pushed into the cavity in the cylindrical rotating tool into the welding plate hole generated when the cylindrical rotating tool is moved and welded back out of the weld metal plate. Plastic flow by extruding negative metal material with hole filling extrusion rod The present invention relates to a friction stir welding hole filling device having a feature of filling a hole remaining after friction stir welding by filling a hole of a welded metal plate with a negative metal material pushed out, and a welding method using the same.

본 발명은 두 금속판을 맞대어서 고정시킨 후, 이음부인 용접선을 따라 마찰열과 금속교반에 의한 소성유동을 이용하여 두 금속판을 용접하는 마찰교반용접으로서, 마찰교반용접 후 용접판에 남게 되는 용접구멍을 메움으로서 용접 후 용접판의 강도를 향상시키는 효과뿐만 아니라, 마찰교반용접판 표면의 미관을 개선시킬 수 있는 효과를 가진다.
The present invention is a friction stir welding for welding two metal plates using a frictional heat and a plastic flow by the metal stirring along the seam welding line after the two metal plates are fixed together, the welding hole remaining in the welding plate after friction stir welding As a filling, as well as the effect of improving the strength of the welding plate after welding, it has the effect of improving the appearance of the friction stir welding plate surface.

도 1은 구멍메움 압출봉이 삽입되어 있는 원통형 회전공구가 용접금속가압판과 함께 용접금속판의 용접선 중앙부에 밀착되어 있는 용접준비단계를 나타낸 구성도
도 2는 원통형 회전공구가 용접금속판에 삽입되면서 회전할 때 삽입된 원통형 회전공구의 부피만큼의 금속판 소재가 원통형 회전공구의 캐비티로 밀려나오고 있는 단계를 나타낸 구성도
도 3은 원통형 회전공구가 용접하고자하는 두 금속판의 일정깊이만큼 삽입되어 내부에 밀려나온 금속소재를 포함한 채 회전하면서 두 용접금속판의 용접선을 따라 마찰교반용접하면서 이동하는 단계를 나타낸 구성도
도 4는 마찰교반 원통형 회전공구가 회전하면서 용접선을 따라 이동을 완료한 후 두 용접금속판에 삽입된 원통형 회전공구가 금속판에서 빠져나올 때 원통형 회전공구내에 삽입된 구멍메움 압출봉에 의해서 원통형 회전공구의 캐비티에 저장되어 있는 금속소재를 다시 용접금속판의 소성유동부의 중공부에 압출하여 용접금속판을 메우는 단계를 나타낸 구성도
도 5는 마찰교반 원통형 회전공구가 회전하면서 용접선을 따라 이동을 완료한 후 두 용접금속판에 삽입된 원통형 회전공구가 금속판에서 완전히 빠져나온 상태와 원통형 회전공구 내에 삽입된 구멍메움 압출봉에 의해서 원통형 회전공구의 캐비티에 저장되어 있는 금속소재가 압출되어 용접금속판의 구멍이 완전히 메워진 단계를 나타낸 구성도
도 6은 종래의 마찰교반용접 후의 용접금속에 남게 되는 용접구멍을 나타낸 구성도1 is a block diagram illustrating a welding preparation step in which a cylindrical rotating tool in which a hole-filled extrusion rod is inserted is in close contact with a center portion of a welding line of a weld metal plate together with a weld metal pressure plate.
Figure 2 is a configuration diagram showing a step in which the metal sheet material is pushed out into the cavity of the cylindrical rotary tool as the volume of the cylindrical rotary tool inserted when the cylindrical rotary tool is rotated while being inserted into the weld metal plate.
3 is a configuration diagram illustrating a step in which a cylindrical rotating tool is moved while friction stir welding along a welding line of two welding metal plates while rotating while including a metal material inserted into a predetermined depth of two metal plates to be welded and pushed out therein.
Figure 4 is a cylindrical rotating tool by a hole-filled extrusion rod inserted into the cylindrical rotating tool when the cylindrical rotating tool inserted in the two welded metal plate after the friction stir cylindrical rotating tool is completed to move along the welding line while exiting the metal plate Diagram showing the step of filling the weld metal plate by extruding the metal material stored in the cavity to the hollow part of the plastic flow part of the weld metal plate again.
5 is a cylindrical rotating tool with a hole-filled extrusion rod inserted into the cylindrical rotating tool and the cylindrical rotating tool inserted into the two welded metal plates after the friction stir cylindrical rotating tool completes the movement along the weld line while rotating. Diagram showing the steps in which the metal material stored in the tool cavity is extruded to completely fill the hole of the welded metal plate
6 is a configuration diagram showing a welding hole remaining in the welding metal after conventional friction stir welding

본 발명은 두 금속판을 맞대어서 고정시킨 후, 이음부인 용접선을 따라 마찰열과 금속교반에 의한 소성유동을 이용하여 두 금속판을 용접하는 마찰교반용접으로서, 마찰교반용접을 위한 원통형 회전공구의 회전과 동시에 두장의 용접금속판의 이음부에 있는 소성유동부의 금속소재에 삽입되면서 용접선상에 있는 두장의 용접금속판상으로 삽입되는 원통형 회전공구의 부피만큼의 용접금속판의 소성유동부의 금속소재가 원통형 회전공구 내부에 있는 원통형 회전공구 캐비티로 후방 압출하여 밀려나가 저장한 다음, 원통형 회전공구의 이동과 용접이 완료되어 원통형 회전공구가 용접금속판 밖으로 복귀할 때 생기는 용접판 구멍속으로 원통형 회전공구 내의 캐비티에 밀려나가 저장되어 있는 소성유동부의 금속소재를 구멍메움 압출봉으로써 압출함으로 소성유동부의 금속소재가 밀려나와 용접된 금속판의 구멍을 메움으로써 마찰교반용접 후에 남게 되는 구멍을 메우는 특징을 가진 마찰교반용접 구멍메움 장치 및 그를 이용한 용접방법에 관한 것으로, 이하 실시예를 통하여 본 발명을 좀 더 구체적으로 설명하기로 한다.
The present invention is a friction stir welding for welding two metal plates using friction heat and plastic flow by metal stirring along the weld line, which is fixed to each other, and at the same time as the rotation of the cylindrical rotary tool for friction stir welding. The metal material of the plastic flow part of the welded metal sheet is inserted into the cylindrical material of the plastic flow part inserted into the metal flow part of the plastic flow part in the joint of the two welded metal plates and inserted into the two welded metal plates on the welding line. Pushed back into the cylindrical rotating tool cavity, which is then pushed out and stored, and then pushed out of the cavity in the cylindrical rotating tool into the hole of the weld plate, which is generated when the cylindrical rotary tool is moved and welded back out of the weld metal plate. Extruded metal material of plastic flow part by hole filling extrusion rod It relates to a friction stir welding hole filling device and a welding method using the same, characterized in that the metal material of the plastic flow portion is pushed out to fill the holes of the welded metal plate to fill the holes remaining after the friction stir welding. The invention will be described in more detail.

하기 실시예는 본 발명을 구체적으로 설명하기 위한 것으로, 본 발명의 범주가 이들 실시 예에 국한되는 것은 아니다.
The following examples are intended to illustrate the present invention in detail, but the scope of the present invention is not limited to these examples.

[실시예 1] 마찰교반용접 구멍메움 장치
Example 1 Friction Stir Welding Hole Filling Device

본 발명의 마찰교반용접 구멍메움 장치를 더욱 상세하게 설명하면 다음과 같다.
Referring to the friction stir welding hole filling device of the present invention in more detail.

두 장의 용접금속판(1)의 선단을 맞대어서 고정시킨 후, 이 맞대어진 이음부의 용접선(10)을 따라 마찰교반용접을 할 때 마찰교반용접 후, 용접판에 남게되는 용접구멍(8)을 메우기 위하여 구성된 것으로,
After the two ends of the weld metal sheet 1 are fixed to each other, and after friction stir welding along the weld line 10 of the butt joint, the welding hole 8 remaining in the welding plate is filled. Configured for

본 발명의 마찰교반용접의 회전공구는 원통형의 형상으로 구성되며, 이 원통형 회전공구(2)가 용접받침판(6) 위에 놓여있는 용접하고자하는 맞대어진 이음부의 두 용접금속판(1)에 회전하면서 소성유동부의 금속소재(9)에 삽입될 때, 삽입된 원통형 회전공구(2)의 삽입된 부피만큼의 소성유동부의 금속소재(9)가 원통형회전공구(2)의 내부에 있는 원통형회전공구의 캐비티(3)로 밀려나오게 한 후, 기존의 마찰교반용접처럼 용접을 진행하게 한다(도 1~3).
The rotary tool of friction stir welding according to the present invention has a cylindrical shape, and is fired while the cylindrical rotary tool 2 rotates on two welding metal plates 1 of the butt joint to be welded, which is placed on the welding support plate 6. When inserted into the metal material 9 of the flow part, the metal material 9 of the plastic flow part by the inserted volume of the inserted cylindrical rotary tool 2 is a cavity of the cylindrical rotary tool inside the cylindrical rotary tool 2. After pushed out to (3), the welding proceeds as in the conventional friction stir welding (Fig. 1 to 3).

원통형회전공구(2)의 강도는 원통형회전공구(2) 내부의 원통형회전공구 캐비티(3)로 밀려나온 소성유동부의 금속소재(9)가 원통형회전공구(2) 내부를 채움으로써 원통형회전공구(2)가 이동할 때에 강한 소성유동의 저항력을 이길 수 있도록 용접금속판(1)보다 경도가 우수한 재질로 이루어져 구성되어 있다(도 2, 3).
The strength of the cylindrical rotary tool 2 is obtained by filling the inside of the cylindrical rotary tool 2 with the metal material 9 of the plastic flow portion pushed out into the cylindrical rotary tool cavity 3 inside the cylindrical rotary tool 2. 2) is made of a material that is superior in hardness to the weld metal plate 1 so as to overcome the strong plastic flow resistance (Fig. 2, 3).

마찰교반용접 원통형회전공구(2)가 용접선(10)을 따라 회전하면서 이동을 완료한 후 원통형회전공구(2)가 빠져나올 때 원통형회전공구(2) 내로 밀려나와 있던 소성유동부의 금속소재(9)를 구멍메움 압출봉(4)에 의해서 금속판으로 강하게 압출하도로 하여 원통형회전공구(2)가 빠져나온 구멍을 메우도록 한다(도 4).
Metal material of the plastic flow portion which was pushed into the cylindrical rotating tool 2 when the friction rotating welding cylindrical rotating tool 2 completed the movement while rotating along the welding line 10 and the cylindrical rotating tool 2 exited. ) Is strongly extruded into the metal plate by the hole-filling extrusion rod 4 to fill the hole from which the cylindrical rotating tool 2 escapes (FIG. 4).

이 때 원통형회전공구(2)가 회전하면서 복귀할 때 구멍메움 압출봉(4)이 원통형회전공구(2) 내 삽입되어 있던 금속을 다시 구멍으로 강하게 압출하면서 서서히 구멍을 채우고 원래의 위치로 돌아오게 하면서 마찰교반용접이 완성되도록 한다(도5).
At this time, when the cylindrical rotary tool 2 rotates and returns, the hole-filling extrusion rod 4 gradually pushes the metal inserted into the cylindrical rotary tool 2 back into the hole, gradually filling the hole and returning to the original position. While friction stir welding is completed (Fig. 5).

이러한 과제를 수행함에 있어서 원통형회전공구(2)가 삽입될 때 금속판의 소재가 원통형회전공구(2) 내로 밀려나오게 하기위해서 원통형회전공구(2)의 내측선단모서리에 모서리라운딩(7)을 두어 소성유동부의 금속소재(9)가 원통형회전공구 캐비티(3)로 용이하게 밀려나오도록 라운딩처리 되어 있는 것을 특징으로 한다.
In carrying out this task, when the cylindrical rotary tool 2 is inserted, the corner rounding 7 is placed on the inner edge of the cylindrical rotary tool 2 so that the material of the metal plate is pushed into the cylindrical rotary tool 2. The metal material 9 of the flow portion is characterized in that it is rounded so as to be easily pushed out into the cylindrical rotating tool cavity 3.

또한 구멍메움 압출봉(4)이 원통형회전공구(2)의 내부에 삽입되어 있는 소성유동부의 금속소재(9)를 압출할 때 원통형회전공구(2)가 복귀할 때 생기는 소성유동부내의 구멍으로 강하게 압출될 수 있도록 구멍메움 압출봉(4)의 선단모서리가 라운딩되어 있는 모서리라운딩(7)을 가지는 것을 특징으로 하고 있다.
In addition, the hole in the plastic flow portion generated when the cylindrical rotating tool 2 returns when the hole-filling extrusion rod 4 extrudes the metal material 9 of the plastic flow portion inserted into the cylindrical rotating tool 2. It is characterized in that it has a corner rounding (7) rounded the leading edge of the hole-filled extrusion rod (4) so that it can be extruded strongly.

마찰교반용접후의 용접구멍(8)을 메우는 방법으로써 원통형회전공구(2)와 구멍메움압출봉(4)의 작동은 원통형회전공구(2)가 용접하고자하는 두 용접금속판(1)에 회전하면서 삽입될 때 사용하는 가압력과 원통형회전공구(2)가 복귀하면서 구멍메움압출봉(4)이 소재를 가압하는 압출하중을 상호 반대적으로 가압하도록하여 구멍을 메우는 방법을 특징으로 한다.
The operation of the cylindrical rotary tool 2 and the hole-filling extrusion rod 4 as a method of filling the welding hole 8 after friction stir welding is inserted while the cylindrical rotary tool 2 rotates to the two welding metal plates 1 to be welded. When the pressing force and the cylindrical rotary tool (2) used when the return is characterized in that the hole filling extrusion rod (4) to press the extrusion load to press the material opposite to each other to fill the hole.

[실시예 2] 마찰교반용접 구멍메움 방법(용접선의 경우)
Example 2 Friction Stir Welding Hole Filling Method (Welding Line)

본 발명의 마찰교반용접 구멍메움장치를 이용한 마찰교반용접 구멍메움방법 을 설명하면 다음과 같다.
Referring to the friction stir welding hole filling method using the friction stir welding hole filling apparatus of the present invention.

먼저, 도 1에 나타낸바와 같이, 구멍메움 압출봉(4)이 삽입되어 있는 원통형 회전공구(2)가 용접금속가압판(5)과 함께 용접금속판(1)에 밀착되어 있는 용접준비단계를 도시하고 있는 것으로, 원통형의 용접금속가압판(5)이 용접받침판(6)위에 놓여있는 용접하고자 하는 용접금속판(1)을 가압한 상태에서 원통형 회전공구(2)와 내부에 삽입되어있는 구멍메움 압출봉(4)의 선단이 일치된 상태로 용접금속판(1)의 용접선(10)에 일치시킨 다음 원통형 회전공구(2)의 회전과 동시에 용접금속판(1)으로 가압하여 삽입되도록 준비시킨다.
First, as shown in FIG. 1, the welding preparation step in which the cylindrical rotating tool 2 into which the hole-filled extrusion rod 4 is inserted is in close contact with the weld metal plate 1 together with the weld metal pressure plate 5 is shown. In the state in which the cylindrical weld metal pressure plate 5 presses the weld metal plate 1 to be welded on the welding support plate 6, the cylindrical rotating tool 2 and the hole-filled extrusion rod inserted therein ( The tip of 4) is matched to the welding line 10 of the weld metal plate 1, and then is pressed to be inserted into the weld metal plate 1 simultaneously with the rotation of the cylindrical rotating tool 2.

도 2에 나타낸바와 같이, 원통형 회전공구(2)가 용접금속판(1)에 삽입되면서 회전할 때 삽입된 원통형 회전공구(2)의 부피만큼의 소성유동부의 금속소재(9)가 원통형 회전공구(2)의 캐비티(3)로 밀려나오고 있는 단계를 도시하고 있는 것으로, 원통형 회전공구(2)의 삽입과 동시에 마찰에 의한 가열로 인하여 용접금속판(1)에 소성유동을 일으키면서 소성유동부의 금속소재(9)를 원통형회전공구(2)의 캐비티(3)로 밀려나오도록 하기위해서 원통형 회전공구(2)의 내측선단면상에 라운딩된 모서리라운딩(7)를 두어 소성유동이 원활하도록 하였으며, 이때 구멍메움 압출봉(4)은 뒤로 물러나면서 원통형회전공구(2)의 캐비티(3)에 금속소재(9)가 채워지도록 도시된 것이다.
As shown in FIG. 2, when the cylindrical rotating tool 2 is rotated while being inserted into the welded metal plate 1, the metal material 9 of the plastic flow portion equals the volume of the cylindrical rotating tool 2 inserted into the cylindrical rotating tool ( Figure 2 shows the steps pushed out into the cavity 3, which causes the plastic flow to the welded metal sheet 1 due to the heating by friction at the same time as the cylindrical rotary tool 2 is inserted into the metal material of the plastic flow portion. In order to push (9) into the cavity (3) of the cylindrical rotary tool (2), a rounded corner rounding (7) was placed on the inner end surface of the cylindrical rotary tool (2) to facilitate plastic flow, and at this time, the hole filling The extrusion rod 4 is shown so that the metal material 9 is filled in the cavity 3 of the cylindrical rotary tool 2 while retreating back.

도 3에 나타낸바와 같이, 원통형 회전공구(2)가 용접하고자하는 두 용접금속판(1)의 일정깊이 만큼 삽입되어 내부에 밀려나온 소성유동부의 금속소재(9)를 포함한 채 회전하면서 두 용접금속판(1)을 마찰교반용접하면서 이동하는 단계를 도시하고 있는 것으로, 원통형회전공구(2)의 캐비티(3)내에 채워진 소성유동부의 금속소재(9)에 의해서 원통형회전공구(2)가 이동할 때 원통형회전공구(2)의 강도를 보상받도록 되어 있는 것이 특징이다.
As shown in FIG. 3, the two rotating metal plates are rotated while the cylindrical rotary tool 2 is inserted with a predetermined depth of the two welded metal plates 1 to be welded and pushed therein, including the metal material 9 of the plastic flow portion. 1) shows a step of moving while friction stir welding, when the cylindrical rotating tool (2) is moved by the metal material (9) of the plastic flow portion filled in the cavity (3) of the cylindrical rotating tool (2) It is characterized in that the strength of the tool 2 is compensated for.

도 4에 나타낸바와 같이, 마찰교반 원통형회전공구(2)가 회전하면서 용접선(10)을 따라 이동을 완료한 후 두 용접금속판(1)에 삽입된 원통형회전공구(2)가 용접금속판(1)에서 빠져나올 때 원통형 회전공구(2)내에 삽입된 구멍메움 압출봉(4)에 의해서 원통형회전공구(2)의 캐비티(3)에 저장되어 있는 소성유동부의 금속소재(9)를 다시 용접금속판(1)의 소성유동부의 중공부에 압출하여 용접금속판(1)을 메우는 단계를 도시하고 있다.
As shown in FIG. 4, after the friction stir cylindrical rotating tool 2 rotates and completes movement along the welding line 10, the cylindrical rotating tool 2 inserted into the two welding metal plates 1 is the weld metal plate 1. The metal material 9 of the plastic flow part stored in the cavity 3 of the cylindrical rotating tool 2 is again welded by a hole-filled extrusion rod 4 inserted into the cylindrical rotating tool 2 when exiting from the welding plate. The step of extruding the hollow part of the plastic flow part of 1) to fill the weld metal plate 1 is shown.

도 5에 나타낸바와 같이, 마찰교반 원통형회전공구(2)가 회전하면서 용접선(10)을 따라 이동을 완료한 후 두 용접금속판(1)에 삽입된 원통형회전공구(2)가 용접금속판(1)에서 완전히 빠져나온 상태와 원통형회전공구(2)내에 삽입된 구멍메움 압출봉(4)에 의해서 원통형회전공구(2)의 캐비티(3)에 저장되어 있는 소성유동부의 금속소재(9)가 압출되어 용접금속판(1)의 구멍이 완전히 메워진 단계를 도시하고 있는 것으로, 이 때 구멍메움압출봉(4)이 용접금속판(1)의 표면 위치까지 압출이 진행되면서 구멍을 메운 다음 원통형회전공구(2)의 복귀가 완성됨과 동시에 마찰교반용접 후에 남게되는 용접구멍(8)을 메울 수 있도록 한다.
As shown in FIG. 5, after the friction stir cylindrical rotating tool 2 rotates and completes the movement along the welding line 10, the cylindrical rotating tool 2 inserted into the two welding metal plates 1 is the weld metal plate 1. The metal material 9 of the plastic flow part stored in the cavity 3 of the cylindrical rotating tool 2 is extruded by the hole-filling extrusion rod 4 inserted into the cylindrical rotating tool 2 and the state completely escaped from the The hole of the weld metal plate 1 is completely filled. The hole filling extrusion rod 4 fills the hole as the extrusion proceeds to the surface position of the weld metal plate 1, and then the cylindrical rotary tool 2 As soon as the return is completed, the welding hole 8 remaining after the friction stir welding can be filled.

도 6은 기존의 환봉형 회전공구(2)를 사용하여 마찰교반용접한 후의 용접판에 남게 되는 용접구멍을 도시하고 있다. 용접구멍은 회전공구(2)가 용접선을 따라 이동을 완료한 후 용접판에서 복귀한 후 용접선의 가장자리에 있는 끝부분에 남게되는 용접구멍에 해당된다.
FIG. 6 shows a welding hole left in the welding plate after friction stir welding using the existing round bar-type rotary tool 2. The welding hole corresponds to the welding hole remaining at the end of the welding line after the rotary tool 2 completes the movement along the welding line and returns from the welding plate.

[실시예 3] 마찰교반용접 구멍메움 방법(점용접의 경우)
Example 3 Friction Stir Welding Hole Filling Method (For Spot Welding)

본 발명의 또 다른 한 실시예로서 [실시예 3] 마찰교반용접 구멍메움 방법에서는 용접하고자하는 두 장의 중첩된 금속판(1)을 고정시킨 후, 마찰열과 금속교반에 의한 소성유동을 이용하여 점용접을 시행하는 경우, 원통형회전공구(2)의 이동없이 원통형회전공구(2)의 회전으로 두장의 중첩된 용접금속판(1)에 삽입되면서 용접면에 있는 소성유동부의 금속소재(9)를 원통형 회전공구의 캐비티(3)로 밀려나가게 하여 저장한 다음 원통형 회전공구(2)의 마찰교반에 의한 점용접이 완료되어 원통형 회전공구(2)가 용접금속판(1) 밖으로 복귀할 때 생기는 용접판 구멍 속으로 원통형 회전공구내의 캐비티(3)에 저장되어 있는 소성유동부의 금속소재(9)를 구멍메움 압출봉(4)으로써 압출하여 용접구멍(8)을 메움으로써 마찰교반점용접 후에 남게 되는 구멍을 구멍을 메울 수 있도록 하는 마찰교반용접 구멍메움방법에 적용되어 질 수 있다.
As another embodiment of the present invention [Example 3] In the friction stir welding hole filling method, two sheets of overlapping metal plates 1 to be welded are fixed and then spot welded by using friction heat and plastic flow by metal stirring. In this case, the cylindrical rotating tool (2) is inserted into two overlapping welding metal plates (1) by the rotation of the cylindrical rotating tool (2) without moving the cylindrical metal material (9) of the plastic flow portion on the welding surface After being pushed into the cavity (3) of the tool and stored, the spot welding by friction stir of the cylindrical rotating tool (2) is completed, and the inside of the welding plate hole generated when the cylindrical rotating tool (2) returns out of the welding metal plate (1) The metal material 9 of the plastic flow part stored in the cavity 3 in the cylindrical rotating tool is extruded with the hole filling extrusion rod 4 to fill the welding hole 8 so as to leave the hole remaining after the friction stir welding. To Friction stir to allow wool can be applied to the welding hole filling method.

1 : 용접금속판 2 : 원통형회전공구
3 : 원통형회전공구 캐비티 4 : 구멍메움 압출봉
5 : 용접금속가압판 6 : 용접받침판
7 : 모서리라운딩 8 : 용접구멍
9 : 소성유동부의 금속소재 10 : 용접선1: welded metal sheet 2: cylindrical rotating tool
3: cylindrical rotating tool cavity 4: hole filling extrusion rod
5: welding metal pressure plate 6: welding base plate
7: corner rounding 8: welding hole
9: metal material of plastic flow part 10: welding line

Claims (5)

구멍메움 압출봉(4)을 포함하고 있는 원통형회전공구(2); 와
원통형 회전공구(2)의 내부에 둘러싸여 있는 구멍메움 압출봉(4); 과
구멍메움 압출봉(4)과 원통형 회전공구(2)를 둘러싸고 있는 원통형 용접금속가압판(5);과
용접하고자하는 용접금속판(1)을 받치고 있는 용접받침판(6);
으로 구성되어 원통형회전공구(2)의 회전과 삽입 그리고 이동에 의한 두 용접금속판(1)의 마찰교반용접 후 용접금속판에 남게 되는 구멍을 메우는 마찰교반용접 구멍메움장치.
Cylindrical rotary tool (2) comprising a hole filling extrusion rod (4); Wow
Hole-filled extrusion rods 4 enclosed within the cylindrical rotary tool 2; and
Cylindrical welding metal pressure plate (5) surrounding the hole-filled extrusion rod (4) and the cylindrical rotary tool (2); And
A welding support plate 6 supporting the welding metal plate 1 to be welded;
Friction stir welding hole filling device for filling the holes remaining in the welded metal plate after the friction stir welding of the two welded metal plate (1) by the rotation, insertion and movement of the cylindrical rotary tool (2).
제 1항에 있어서,
원통형회전공구(2)의 내측모서리에 선단모서리가 일정한 반지름으로 라운딩되어 있는 모서리라운딩(7)을 가지고 있는 것을 특징으로 하는 마찰교반용접 구멍메움장치.
The method of claim 1,
A friction stir welding hole filling device, characterized in that the inner edge of the cylindrical rotary tool (2) has a corner rounding (7) in which the leading edge is rounded to a constant radius.
제 1항에 있어서,
원통형회전공구(2)와 구멍메움압출봉(4)은 회전 가능한 것을 특징으로 하는 마찰교반용접 구멍메움장치.
The method of claim 1,
Cylindrical rotary tool (2) and hole filling extrusion rod (4) is a friction stir welding hole filling device, characterized in that rotatable.
용접받침판(6)에 놓여있는 두 장의 용접금속판(1)을 맞대어서 고정시킨 후, 마찰열과 금속교반에 의한 소성유동을 이용하여 마찰교반용접의 원통형 회전공구(2)의 회전과 동시에 용접선상에 있는 소성유동부의 금속소재(9)를 원통형 회전공구의 캐비티(3)로 밀려나가게 하여 저장한 다음, 원통형 회전공구(2)의 마찰교반에 의한 용접이 완료되어 원통형 회전공구(2)가 용접금속판(1) 밖으로 복귀할 때 생기는 용접판 구멍 속으로 원통형 회전공구내의 캐비티(3)에 저장되어 있는 소성유동부의 금속소재(9)를 구멍메움 압출봉(4)으로써 압출하여 용접구멍(8)을 메움으로써 마찰교반 선용접 후에 남게 되는 구멍을 메우는 마찰교반용접 구멍메움방법.
After the two welding metal sheets 1 placed on the welding support plate 6 are fixed to each other, the cylindrical flow tools for friction stir welding are rotated on the welding line by using friction heat and plastic flow by metal stirring. The metal material 9 of the plastic flow part is pushed and stored in the cavity 3 of the cylindrical rotating tool, and then welding by the friction stir of the cylindrical rotating tool 2 is completed, so that the cylindrical rotating tool 2 is welded with a metal plate. (1) The metal material 9 of the plastic flow part stored in the cavity 3 in the cylindrical rotating tool into the weld plate hole generated when returning out is extruded with a hole-filled extrusion bar 4 to open the weld hole 8. A method of filling a friction stir welding hole that fills a hole remaining after friction stir welding.
용접받침판(6)에 놓여있는 두 장의 중첩된 용접금속판(1)을 고정시킨 후, 마찰열과 금속교반에 의한 소성유동을 이용하여 마찰교반점용접의 원통형회전공구(2)의 회전과 동시에 점용접을 시행하는 경우, 원통형회전공구(2)의 이동없이 원통형회전공구(2)의 회전으로 두장의 중첩된 용접금속판(1)에 삽입되면서 용접면에 있는 소성유동부의 금속소재(9)를 원통형 회전공구의 캐비티(3)로 밀려나가게 하여 저장한 다음. 원통형 회전공구(2)의 마찰교반에 의한 점용접이 완료되어 원통형 회전공구(2)가 용접금속판(1) 밖으로 복귀할 때 생기는 용접판 구멍 속으로 원통형 회전공구내의 캐비티(3)에 저장되어 있는 소성유동부의 금속소재(9)를 구멍메움 압출봉(4)으로써 압출하여 용접구멍(8)을 메움으로써 마찰교반점용접 후에 남게 되는 구멍을 메우는 마찰교반용접 구멍메움방법.
After fixing the two overlapping welding metal plates 1 placed on the welding support plate 6, spot welding is performed simultaneously with the rotation of the cylindrical rotary tool 2 of friction stir welding using friction heat and plastic flow by metal stirring. In this case, the cylindrical rotating tool (2) is inserted into two overlapping welding metal plates (1) by the rotation of the cylindrical rotating tool (2) without moving the cylindrical metal material (9) of the plastic flow portion on the welding surface Pushed into the cavity of the tool (3) and stored. The spot welding by friction stir of the cylindrical rotary tool 2 is completed and stored in the cavity 3 in the cylindrical rotary tool into the welding plate hole generated when the cylindrical rotary tool 2 returns out of the weld metal plate 1. A method of filling a friction stir welding hole which fills a hole left after friction stir welding by extruding a metal material (9) of a plastic flow part by a hole filling extrusion rod (4) to fill a welding hole (8).
KR1020120092304A 2012-08-23 2012-08-23 Friction stir welding hole filling device and method KR20140026761A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160250727A1 (en) * 2015-02-26 2016-09-01 Airbus Group Sas Friction stir welding: method and device for filling a hole at the end of welding or for repairing a welding defect
CN106862749A (en) * 2017-01-23 2017-06-20 沈阳航空航天大学 A kind of backfill formula friction stir spot welding method
CN110860782A (en) * 2019-11-25 2020-03-06 上海航天设备制造总厂有限公司 Continuous material succession filling friction spot welding tool and method
CN111151760A (en) * 2020-01-20 2020-05-15 哈尔滨工业大学 Deformation-driven solid-phase extrusion device and method for preparing alloy bar by using device through one-step method
KR102226907B1 (en) * 2020-07-28 2021-03-12 엠디티 주식회사 Friction spot welding appartus
CN113547195A (en) * 2021-07-12 2021-10-26 京浜乐梦金属科技（苏州）有限公司 Friction stir welding method for industrial cooling copper back plate

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160250727A1 (en) * 2015-02-26 2016-09-01 Airbus Group Sas Friction stir welding: method and device for filling a hole at the end of welding or for repairing a welding defect
US9815152B2 (en) * 2015-02-26 2017-11-14 Airbus Friction stir welding: method and device for filling a hole at the end of welding or for repairing a welding defect
CN106862749A (en) * 2017-01-23 2017-06-20 沈阳航空航天大学 A kind of backfill formula friction stir spot welding method
CN110860782A (en) * 2019-11-25 2020-03-06 上海航天设备制造总厂有限公司 Continuous material succession filling friction spot welding tool and method
CN110860782B (en) * 2019-11-25 2021-11-16 上海航天设备制造总厂有限公司 Continuous material succession filling friction spot welding tool and method
CN111151760A (en) * 2020-01-20 2020-05-15 哈尔滨工业大学 Deformation-driven solid-phase extrusion device and method for preparing alloy bar by using device through one-step method
KR102226907B1 (en) * 2020-07-28 2021-03-12 엠디티 주식회사 Friction spot welding appartus
CN113547195A (en) * 2021-07-12 2021-10-26 京浜乐梦金属科技（苏州）有限公司 Friction stir welding method for industrial cooling copper back plate

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