KR20080096117A - Suitable panel shape, clamp method of panel and clamp structure in laser welding of galvanized sheet iron - Google Patents

Suitable panel shape, clamp method of panel and clamp structure in laser welding of galvanized sheet iron Download PDF

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KR20080096117A
KR20080096117A KR1020070041114A KR20070041114A KR20080096117A KR 20080096117 A KR20080096117 A KR 20080096117A KR 1020070041114 A KR1020070041114 A KR 1020070041114A KR 20070041114 A KR20070041114 A KR 20070041114A KR 20080096117 A KR20080096117 A KR 20080096117A
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galvanized steel
clamp
steel sheet
welding
laser welding
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KR1020070041114A
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Korean (ko)
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KR100867404B1 (en
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김문기
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주식회사 세원정공
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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
    • B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • 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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment
    • 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
    • B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • 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
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • 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
    • B23K2101/34—Coated articles, e.g. plated or painted; Surface treated articles

Abstract

A panel form is provided to exhaust the zinc fume which is generated two galvanized sheets while the galvanized sheet is fused in the laser welding be facilitated, and a method for clamping so that the welding point of the panel have the gap of about 0.1±0.05 and the clamp is provided. A panel form is suitable for the laser welding of the galvanized sheet wherein bent portions(10) formed curve-cut V which is gentle in one side galvanized sheet(1) in order to form the interval 0.1±0.05 in order to be suitable because of welding two galvanized sheets(1,2) using laser and are formed are adhered closely to the far-end galvanized sheet(2).

Description

아연도금강판의 레이저 용접에 적합한 판넬형상, 판넬의 클램프 방법 및 클램프 구조{Suitable panel shape, clamp method of panel and clamp structure in laser welding of galvanized sheet iron}Panel shape, clamp method of panel and clamp structure in laser welding of galvanized sheet iron}

도 1,2는 종래 레이저 용접지그의 클램프 방법 및 클램프 예시도1,2 is an exemplary clamp method and clamp example of a conventional laser welding jig

도 3는 본 발명에 따른 레이저 용접지그의 클램프를 보인 사시도Figure 3 is a perspective view showing the clamp of the laser welding jig according to the present invention

도 4,5는 본 발명에 의한 판넬형상 및 클램프 상태를 보인 예시도4,5 is an exemplary view showing a panel shape and a clamp state according to the present invention

도 6은 본 발명에 의한 판넬형상 및 클램프 상태를 확대한 예시도6 is an enlarged view illustrating a panel shape and a clamp state according to the present invention.

***도면중 주요 부분에 대한 부호의 설명****** Description of the symbols for the main parts of the drawings ***

1:2: 아연도금강판 3: 클램프  1: 2: galvanized steel sheet 3: clamp

4: 용접지점 5: 본체 4: welding point 5: main body

6: 받침구 7: 볼트 6: base 7: bolt

8:9: 너트 10: 절곡부 8: 9: Nut 10: Bend

50: 렌치볼트 60: 간격조절판 50: Wrench Bolt 60: Spacing Plate

본 발명은 아연도금강판의 레이저 용접에 적합한 판넬형상, 판넬의 클램프 방법 및 클램프 구조에 관한 것으로서, 더욱 상세하게는 두 장의 아연도금강판을 레이저 용접시 아연도금강판이 용융되면서 발생하는 아연증기의 배출이 용이하도록 한 판넬형상과 상기 판넬의 용접지점이 0.1±0.05 정도의 갭을 갖도록 클램프하는 방법과 상기 클램프에 간격조절이 가능하도록 하는 구조에 관한 것이다.The present invention relates to a panel shape suitable for laser welding of a galvanized steel sheet, a clamping method and a clamp structure of the panel, and more particularly, the discharge of zinc vapor generated when the galvanized steel sheet is melted when laser welding two sheets of galvanized steel sheet. The present invention relates to a method of clamping a panel shape and a welding point of the panel to facilitate a gap of about 0.1 ± 0.05, and a structure for allowing gap adjustment to the clamp.

주지하는 바와 같이 레이저 용접은 고에너지의 레이저빔을 용접하려는 부위에 조사하여 용접지점이 순간적으로 용융하고, 레이저 빔이 이동하면 용접지점 주위에 열을 빼앗겨 응고함으로써 소재를 용접하는 것을 말하며, 아연도금강판을 레이저 용접 시 좋은 조건을 제공하려면, 두 장의 아연도금강판에 용접지점이 0.1±0.05 정도의 갭을 갖도록 해야 한다.As is well known, laser welding refers to welding a material by irradiating a laser beam of high energy to the area to be welded and instantly melting the welding point, and when the laser beam moves, it loses heat around the welding point and solidifies. In order to provide good conditions for laser welding the steel sheet, two galvanized steel sheets should have a welding point of 0.1 ± 0.05 gap.

또한, 상기와 같은 레이저 용접으로 두 장의 아연도금강판을 용접하는 경우에 조사되는 레이저 빔에 의해 아연도금강판의 용접지점이 용융되면서 아연증기가 발생 되는데, 상기 아연증기는 용접지점에서 배출되지 않으면 아연도금강판이 용접되지 않거나 용접에 결함이 많이 남게 되는 문제점이 되기 때문에 아연증기 배출이 잘되는 조건이 필요하다.In addition, in the case of welding two galvanized steel sheets by the laser welding as described above, zinc vapor is generated while the welding point of the galvanized steel sheet is melted by the laser beam irradiated. Since the plated steel sheet is not welded or a problem that a lot of defects remain in the welding, it is necessary to condition the zinc vapor is well discharged.

그러나 종래에는 도 1에서 보는 바와 같이 일반적인 판넬의 절곡이 직각에 가깝게 절곡되어 있고, 또 용접지그를 구성하는 클램프의 위치관계로 용접지점에 레이저 빔을 조사할 수 없기 때문에 레이저 용접이 불가능하였다.However, in the related art, as shown in FIG. 1, since the general panel is bent close to the right angle and the laser beam cannot be irradiated to the welding point due to the positional relationship between the clamps constituting the welding jig, laser welding is impossible.

그래서 도 2에서 보는 바와 같이 한쪽 아연도금강판의 용접지점을 돌출시켜 상대 아연도금강판에 돌출된 용접지점이 밀착되게 하여 지그의 클램프로 고정하고 용접지점에 레이저 빔을 조사하여 용접을 하였다.Thus, as shown in FIG. 2, the welding point of one galvanized steel sheet is protruded, and the welding point protruding from the counterpart galvanized steel sheet is brought into close contact with each other.

그러나 아연도금강판에 용접지점을 돌출시켜주고, 상대 아연도금강판에 밀착하여도 돌출부는 구조적으로 용접지점이 0.1±0.05 정도의 갭을 갖도록 할 수 없고, 또 클램프를 하기에 불가능하였으며, 뿐만 아니라 클램프의 구조상 아연도금강판을 가압하는 간격을 조절할 수 있는 수단이 없는 문제점이 있었다.However, even if the welding point was protruded on the galvanized steel sheet and closely contacted with the counterpart galvanized steel sheet, the protrusion could not structurally have the welding point having a gap of about 0.1 ± 0.05, and it was impossible to clamp the clamp. There was a problem in that there is no means to control the interval to pressurize the galvanized steel sheet.

상기와 같은 문제점을 해결하기 위한 본 발명의 목적은 두 장의 아연도금강판을 레이저 용접 시 발생하는 아연증기의 배출이 용이하도록 하여 완벽한 용접이 이루어지도록 하기 위한 것으로서, 아연도금강판의 용접지점에 0.1±0.05 정도의 간격이 자연스럽게 형성되는 구조의 판넬을 제공하고, 그러한 간격이 형성되도록 클램프하는 방법과 아연도금강판의 용접지점에 0.1±0.05 정도의 간격이 자연스럽게 형성되도록 가압할 수 있도록 간격을 조절할 수 있는 클램프를 제공하는데 소기의 목적하는 바가 있다.An object of the present invention for solving the above problems is to facilitate the exhaust of the zinc vapor generated during laser welding of two sheets of galvanized steel sheet, so that a perfect welding is made, 0.1 ± at the welding point of the galvanized steel sheet Provide a panel with a structure in which a gap of about 0.05 is naturally formed, and a method of clamping such a gap and adjusting the gap so that a pressure of about 0.1 ± 0.05 is naturally formed at a welding point of the galvanized steel sheet. It is desired to provide a clamp.

상기 목적을 달성하기 위한 본 발명은 어느 한쪽 아연도금강판의 용접지점을 형성하기 위하여 완만한 V자로 절곡부들을 형성하여 상대측 아연도금강판에 밀착하고, V자로 절곡된 절곡부들로부터 소정의 거리를 두고 클램프 함으로써, 두 장의 아연도금강판 사이에 형성되는 간격이 0.1±0.05가 되는 지점이 용접지점이 되고, 여기에 레이저 빔을 조사하여 용접하고, 상기와 같이 두 장의 아연도금강판사이에 0.1±0.05의 간격이 발생 될 수 있도록 클램프의 간격조절이 가능하게 간격조절판을 가감시킬 수 있는 구조를 갖는 클램프를 구비한 레이저 용접지그를 제공하는 것 을 특징으로 하며, 이하 실시예를 첨부된 도면과 관련하여 상세히 설명하면 다음과 같다.In order to achieve the above object, the present invention forms a gentle V-shaped bent portions to form a welding point of one of the galvanized steel sheets, closely adheres to the other side of the galvanized steel sheet, and has a predetermined distance from the bent portions bent by the V-shaped sheet. By clamping, the point where the gap formed between the two galvanized steel sheets becomes 0.1 ± 0.05 becomes the welding point, and is welded by irradiating the laser beam to it, and 0.1 ± 0.05 between the two galvanized steel sheets as described above. It is characterized in that it provides a laser welding jig having a clamp having a structure that can adjust the interval of the clamp so that the gap can be adjusted so that the gap can be generated, the following embodiments in detail with reference to the accompanying drawings The explanation is as follows.

도 3는 본 발명에 따른 레이저 용접지그의 클램프를 보인 사시도, 도 4,5는 본 발명에 의한 판넬형상 및 클램프 상태를 보인 예시도, 도 6은 본 발명에 의한 판넬형상 및 클램프 상태를 확대한 예시도이다.Figure 3 is a perspective view showing a clamp of the laser welding jig according to the present invention, Figures 4 and 5 is an exemplary view showing a panel shape and a clamp state according to the present invention, Figure 6 is an enlarged panel shape and clamp state according to the present invention. It is an illustration.

도면 4,5에서 도시한 것과 같이 한쪽 아연도금강판(1)에 용접지점을 형성시키기 위해 완만한 V자로 절곡부(10)들을 형성하여 준비하고, 상대측 아연도금강판(2)에 밀착되게 배열한다.As shown in Figures 4 and 5, to form a welding point in one galvanized steel sheet (1) to form a bent portion 10 to form a gentle V-shaped, and arranged in close contact with the counterpart galvanized steel sheet (2) .

그리고, 아연도금강판(1)에 V자로 절곡된 절곡부(10)들로부터 소정의 거리를 두고 클램프(3)로 가압하여 두 장의 아연도금강판(1)(2)를 고정함으로써, 두 장의 아연도금강판(1)(2) 사이에 형성되는 간격이 0.1±0.05가 지점이 용접지점(4)으로 여기에 레이저 빔을 조사하여 용접한다.Then, by pressing the clamp (3) at a predetermined distance from the bent portions 10 bent in V-shaped to the galvanized steel sheet 1 to fix the two galvanized steel sheets (1) (2), two sheets of zinc The spacing formed between the plated steel sheets 1 and 2 is 0.1 ± 0.05, and the spot is welded to the welding spot 4 by welding a laser beam.

상기 레이저 용접지그는 용접할 소재의 형상과 모양에 따라서 다양한 형태로 구성되고, 용접지그를 구성하는 클램프(3)는 상기와 같이 두 장의 아연도금강판(1)(2)사이에 0.1±0.05의 간격이 발생 될 수 있도록 클램프(3)의 간격조절이 가능하게 구성된다.The laser welding jig is configured in various forms according to the shape and shape of the material to be welded, the clamp (3) constituting the welding jig is 0.1 ± 0.05 between the two galvanized steel sheet (1) (2) as described above The spacing of the clamps 3 is configured to enable spacing.

좀 더 구체적으로 클램프(3)의 일측은 받침구(6)와 본체(5)사이에 간격조절판(60)을 가감시킬 수 있도록 받침구 및 간격조절판(60)을 본체(5)에 렌치볼트(50)로 결합하고, 타측은 본체(5)를 관통하는 볼트(7)를 결합하고 양쪽에 고정너트(8)(9)를 체결하여 볼트(7)가 본체(5)에 고정되도록 구성되어 있다.More specifically, one side of the clamp (3) is a wrench bolt (a) to the base and spacing control plate 60 to the body 5 so as to add or subtract the spacing plate (60) between the base (6) and the body (5). 50), the other side is coupled to the bolt (7) penetrating through the main body 5 and fastening the fixing nuts (8) (9) on both sides is configured so that the bolt (7) is fixed to the main body (5). .

이러한 구성으로 된 아연도금강판의 레이저 용접에 적합한 판넬형상, 판넬의 클램프 방법 및 클램프 구조에 의한 작용을 살펴본다.The panel shape suitable for laser welding of the galvanized steel sheet having such a configuration, the clamping method of the panel and the action by the clamp structure will be described.

우선, 도면 4,5에서 도시한 것과 같이 한쪽 아연도금강판(1)에 용접지점을 형성하기 위하여 완만한 V자로 절곡부(10)들을 형성하였기 때문에 상대측 아연도금강판(2)에 대접시켜주고, V자로 절곡된 절곡부(10)들로부터 소정의 거리를 두고 클램프(3)로 가압한다.First, as shown in Figs. 4 and 5, since the bent portions 10 are formed to have a V-shaped bend to form a welding point on one galvanized steel sheet 1, the galvanized steel sheet 2 is welded to the counterpart galvanized steel sheet 2, The clamp 3 is pressed at a predetermined distance from the bent portions 10 bent in V.

그러면, 두 장의 아연도금강판(1)(2)사이에 형성되는 절곡부(10)를 중심으로 양쪽으로 점점 벌려지는 형태가 된다.Then, about two bends 10 formed between the galvanized steel sheet (1) (2) is formed to gradually open to both sides.

상기와 같이 한 상태에서 두 장의 아연도금강판(1)(2)사이에 간격이 0.1±0.05가 되는 지점이 레이저 용접에 가장 적합한 조건이라 할 수 있기 때문에 이 용접지점(4)으로 레이저 빔을 조사하여 레이저 용접을 한다.In this state, the point where the distance between the two galvanized steel sheets (1) (2) becomes 0.1 ± 0.05 is the most suitable condition for laser welding. Therefore, the laser beam is irradiated to this welding point (4). Laser welding.

그리고, 레이저 용접지그는 용접할 소재의 형상과 모양에 따라서 다양한 형태로 구성되는데, 용접지그를 구성하는 클램프(3)는 절곡부 각도 또는 아연도금강판의 두께에 따라서 간격조절을 하는 것이 필수적이고, 클램프(3)의 간격조절을 하려면, 렌치볼트(50)를 약간 풀고, 받침구(6)와 본체(5) 사이에 있는 간격조절판(60)을 가감하여 렌치볼트(50)를 다시 조여주거나 또는 본체(5)를 관통하는 볼트(7)의 양쪽에 있는 너트(8)(9)를 풀고 볼트(7)를 본체에 조여주거나 풀어주고 다시 너트(8)(9)를 조여주면 된다.In addition, the laser welding jig is configured in various forms according to the shape and shape of the material to be welded, the clamp (3) constituting the welding jig is necessary to adjust the spacing according to the bend angle or the thickness of the galvanized steel sheet, To adjust the spacing of the clamps 3, loosen the wrench bolts 50 a little and retighten the wrench bolts 50 by adding or subtracting the gap adjusting plate 60 between the base 6 and the main body 5, or Loosen the nuts 8 and 9 on both sides of the bolt 7 penetrating the main body 5, and tighten or loosen the bolt 7 to the main body, and then tighten the nuts 8 and 9 again.

이상과 같은 본 발명은 아연도금강판의 용접지점에 0.1±0.05 정도의 간격이 자연스럽게 형성되도록 절곡되고, 상기와 같은 간격이 유지될 수 있게 클램프하여 용접시 발생하는 아연증기의 배출 등, 레이저 용접시 최적의 조건을 제공할 수 있기 때문에 품질이 우수한 용접제품을 생산할 수 있으며,The present invention as described above is bent to form a gap of about 0.1 ± 0.05 at the welding point of the galvanized steel sheet, the laser vapor during discharge, such as the discharge of zinc vapor generated during welding by clamping to maintain the above intervals Because we can provide optimum conditions, we can produce high quality welded products.

또 아연도금강판의 조건에 따라 레이저 용접지그를 구성하는 클램프의 간격은 간편하게 조절하여 어떠한 조건에서도 아연도금강판의 용접지점에 0.1±0.05 정도의 간격을 유지시켜 용접할 있기 때문에 레이저 용접기술의 발전에 획기적인 전환점이 될 것으로 기대되는 매우 유익한 발명이다.In addition, according to the conditions of the galvanized steel sheet, the distance between the clamps constituting the laser welding jig can be easily adjusted so that the welding point of the galvanized steel sheet can be welded to the welding point of the galvanized steel sheet by 0.1 ± 0.05. It is a very beneficial invention that is expected to be a milestone.

Claims (3)

두 장의 아연도금강판(1)(2)을 레이저 용접하기에 적합하도록 간격 0.1±0.05를 형성시키기 위하여 한쪽 아연도금강판(1)에 완만한 V자로 절곡하여 형성된 절곡부(10)들을 상대측 아연도금강판(2)에 밀착되게 한 것을 특징으로 하는 아연도금강판의 레이저 용접에 적합한 판넬형상.Galvanized bent portions 10 formed by bending V-shaped gently on one galvanized steel sheet 1 to form an interval of 0.1 ± 0.05 to be suitable for laser welding two galvanized steel sheets 1 and 2 Panel shape suitable for laser welding of galvanized steel sheet, characterized in that it is in close contact with the steel sheet (2). 두 장의 아연도금강판(1)(2)을 대접하여 아연도금강판의 간격이 0.1±0.05가 지점이 용접지점(4)으로 레이저 빔을 조사하여 용접할 수 있도록 아연도금강판(1)의 V자로 절곡된 절곡부(10)들로부터 소정의 거리를 두고 클램프(3)로 고정하는 것을 특징으로 하는 아연도금강판의 레이저 용접에 적합하도록 클램프하는 방법.The galvanized steel sheet (1) is formed by welding two galvanized steel sheets (1) and (2) so that the gap between the galvanized steel sheets is 0.1 ± 0.05 so that the spot can be welded by irradiating a laser beam to the welding spot (4). A clamping method suitable for laser welding of galvanized steel sheet, characterized in that the clamp (3) is fixed at a predetermined distance from the bent portions (10). 레이저 용접지그는 용접할 소재의 형상과 모양에 따라서 다양한 형태로 구성되고, 용접지그를 구성하는 클램프(3)의 일측은 받침구(6)와 본체(5)사이에 간격조절판(60)을 가감시킬 수 있도록 넣고 렌치볼트(50)로 결합하고, 타측은 본체(5)를 관통하는 볼트(7)를 결합하고 양쪽에 고정너트(8)(9)를 체결하여 볼트(7)가 본체(5)에 고정되도록 구성된 것을 특징으로 하는 레이저 용접지그의 클램프.The laser welding jig is configured in various forms according to the shape and shape of the material to be welded, one side of the clamp (3) constituting the welding jig is added to the space adjusting plate 60 between the base 6 and the main body (5). Put it so that it can be combined with the wrench bolt 50, the other side is coupled to the bolt (7) penetrating through the body (5) and fastening the fixing nuts (8) (9) on both sides bolts (7) the body (5) Clamp of a laser welding jig, characterized in that configured to be fixed to).
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103128443A (en) * 2011-11-29 2013-06-05 三河世原汽车科技有限公司 Clamping method suitable for laser welding of galvanized steel sheet
KR101950134B1 (en) * 2018-03-22 2019-02-19 한전케이피에스 주식회사 Weld jig apparatus for high-pressure heater diaphragm and method for welding using thereof
CN114101998A (en) * 2021-12-21 2022-03-01 浙江西子势必锐航空工业有限公司 Clamp capable of adjusting weld joint spacing in aviation component welding process
CN114101998B (en) * 2021-12-21 2024-04-23 浙江西子势必锐航空工业有限公司 Clamp for adjusting weld joint distance in welding process of aviation component

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030096950A (en) * 2002-06-18 2003-12-31 현대자동차주식회사 clamping jig
KR100521880B1 (en) 2003-10-29 2005-10-17 현대자동차주식회사 Gap maintain structure of laser welding
KR100588505B1 (en) * 2004-02-23 2006-06-14 현대자동차주식회사 Robot position compensation control device and method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103128443A (en) * 2011-11-29 2013-06-05 三河世原汽车科技有限公司 Clamping method suitable for laser welding of galvanized steel sheet
KR101950134B1 (en) * 2018-03-22 2019-02-19 한전케이피에스 주식회사 Weld jig apparatus for high-pressure heater diaphragm and method for welding using thereof
CN114101998A (en) * 2021-12-21 2022-03-01 浙江西子势必锐航空工业有限公司 Clamp capable of adjusting weld joint spacing in aviation component welding process
CN114101998B (en) * 2021-12-21 2024-04-23 浙江西子势必锐航空工业有限公司 Clamp for adjusting weld joint distance in welding process of aviation component

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