WO2019216217A1 - Laser welding method for corner joint - Google Patents

Laser welding method for corner joint Download PDF

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Publication number
WO2019216217A1
WO2019216217A1 PCT/JP2019/017381 JP2019017381W WO2019216217A1 WO 2019216217 A1 WO2019216217 A1 WO 2019216217A1 JP 2019017381 W JP2019017381 W JP 2019017381W WO 2019216217 A1 WO2019216217 A1 WO 2019216217A1
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Prior art keywords
plate member
corner joint
notch
plate
welding
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PCT/JP2019/017381
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French (fr)
Japanese (ja)
Inventor
謙一 土浦
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株式会社アマダホールディングス
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Publication of WO2019216217A1 publication Critical patent/WO2019216217A1/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
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding

Definitions

  • the present invention relates to a method for welding a corner joint by laser.
  • FIG. 10 shows an example of 1 / 3-pull corner joint welding.
  • FIG. 10 is a schematic explanatory diagram of conventional 1 / 3-pull corner joint welding.
  • the irradiated fiber laser escapes to the back side in a place where the overlap amount is small, and a sufficiently wide R surface is not formed, thereby obtaining a sufficient welding strength. There was a problem that could not be.
  • the present invention has been made paying attention to the above-described circumstances, and an object of the present invention is to provide a method of welding corner joints in which both plate materials can be aligned accurately and easily.
  • the present invention is for solving the above-mentioned problems, and is a method having the following characteristics.
  • the present invention is a welding method of a corner joint that performs welding by forming a corner joint by abutting the other plate member to one plate member, and performing an end face processing on an end face of the one plate member; A step of matching the other plate member in accordance with processing to form a corner joint.
  • Another feature of the present invention is that laser welding is performed on the corner joint in the corner joint welding method.
  • Another feature of the present invention is that the end face processing is a shape in which the other plate member can be easily positioned in the welding method of the corner joint.
  • Another feature of the present invention is that, in the welding method of the corner joint, the end face machining is performed so that the exposed width of the one plate member and the exposed width of the other plate member in the corner joint are the same. Is to be applied.
  • Another feature of the present invention is that, in the welding method of the corner joint, laser irradiation is always performed at a certain position and a certain angle with respect to the corner joint.
  • FIG. 1 shows embodiment of the plate member by which the end surface processing concerning this invention was carried out
  • (a) is a perspective view of a plate member
  • (b) is a side view of a plate member
  • (c) is It is an enlarged view of the edge part of the plate member by which the end surface process was carried out. It is an operation
  • FIG. 1 It is a table figure which shows the specific example of board thickness h of a board
  • FIG. 5B is an explanatory view showing a state in which the other plate member 13 is engaged with one plate member 1.
  • FIG. 1 is a view showing an embodiment of a plate member having an end face processed according to the present invention, (a) is a perspective view of the plate member, (b) is a side view of the plate member, c) is an enlarged view of an end portion of a plate member subjected to end face processing.
  • the plate member 1 has a rectangular shape, and end faces are processed on both sides 3 and 5 in the longitudinal direction. As will be described later, this end face processing is such that the other plate member 13 is easily positioned.
  • notches 7 are cut in both sides 3 and 5 of the plate member 1 by a predetermined depth dimension d and a predetermined width dimension c.
  • the end portion 9 of the other plate member 13 is incorporated into the notch 7, and right angle corner joint matching is performed (see FIG. 6).
  • FIG. 2 is an operation flowchart of one embodiment of the method of welding corner joints according to the present invention.
  • step 101 the end portion of one plate member 1 is prepared by performing end face processing.
  • FIG. 3 is an explanatory view showing, in section, an example of a method for forming a notch on both sides 3 and 5 of the plate member 1.
  • a groove 11 having a predetermined width is formed in a predetermined portion of a long plate material by, for example, a planar processing using a notch die or the like with a punching machine.
  • the predetermined width W of the groove 11 is twice the predetermined width c of the notch 7, and the depth of the groove 11 is the predetermined depth d of the notch 7.
  • the predetermined width dimension c and the predetermined depth dimension d of the notch 7 are set to half (1/2) the plate thickness of the plate member 1.
  • the predetermined width and depth of the groove part 11 are changed by the plate thickness of the one plate member 1 and the other plate member 13 as described later.
  • the exposed width B of one plate member 1 and the exposed width D of the other plate member 13 can be set to be the same (see FIG. 7A).
  • FIG. 4 is a table showing specific examples of the plate thickness h, the predetermined width dimension c and the predetermined depth dimension d of the notch 7.
  • step 103 the other plate member 13 to be combined with one plate member 1 is prepared.
  • FIG. 5 is a side view of the other plate member 13 having the same plate thickness as the one plate member 1 subjected to end face processing.
  • the other plate member 13 having the same plate thickness as the one plate member 1 is prepared.
  • the plate thickness of the other plate member 13 may be different from the plate thickness of the one plate member 1.
  • Step 105 corner joint alignment is performed by incorporating (engaging) the end 9 of the other plate member 13 into the notch 7 of the one plate member 1.
  • FIG. 6 is an explanatory view in which the end portion 9 of the other plate member 13 is assembled into the notch 7 of one plate member 1 to perform a right angle corner joint, and (a) is an end portion of the notch 7.
  • 9 is an explanatory view showing a state in which 9 is incorporated
  • FIG. 9B is an explanatory view showing a state in which the other plate member 13 is engaged with one plate member 1.
  • the end 9 is assembled into the notch 7 while aligning the end 9 of the other plate member 13 with the notch 7 of the one plate member 1.
  • the overlapping amount of the end portion of one plate member 1 and the end portion 9 of the other plate member 13 is also uniform in the length direction of the plate members 1 and 13, and accurate alignment can be achieved.
  • the notch 7 of one plate member 1 has a depth dimension d that is half (1/2) the plate thickness of the plate member 1, and the plate member 1.
  • the width dimension c is half (1/2) of the plate thickness.
  • the overlapping amount of the end portion of one plate member 1 and the end portion 9 of the other plate member 13 is half the thickness (1/2) of the plate thickness of the plate member 1 in both the depth direction and the width direction.
  • step 107 corner joints are welded by laser irradiation.
  • a right angle corner joint has been described as an example, but a corner joint other than a right angle may be used.
  • FIG. 7 is an explanatory view of corner joint welding by laser light, (a) is an explanatory view showing a state in which the corner joint is irradiated with laser light, and (b) is formed by corner joint welding. It is explanatory drawing which shows the made R surface.
  • the corner joint is welded by irradiating the laser beam LB by the fiber laser at a predetermined irradiation angle toward the corner joint.
  • the predetermined irradiation angle is 45 °.
  • one plate member 1 and the other plate member 13 have the same plate thickness, and the overlapping amount of both is the plate thickness as described in FIG. 1 (c). 1/2. Therefore, as shown in FIG. 7A, the exposed width B (same as dimension d) of one plate member 1 and the exposed width D (same as dimension c) of the other plate member 13 in the corner joint are: It will be 1/2 (or almost 1/2) of the same plate thickness.
  • the exposed width B of one plate member 1 and the exposed width D of the other plate member 13 in the corner joint are 1/2 of the same plate thickness.
  • the width E can also be made smaller than that of the conventional 1/2 pulling or 1/3 pulling.
  • the notch 7 is provided in one plate member 1, and the end 9 of the other plate member 13 is accommodated in the notch 7 using the notch 7 as a guide. Therefore, the positioning of both plate members is simple and accurate, and the amount of overlap between the end portion of one plate member 1 and the end portion 9 of the other plate member 13 is also the plate member 1, It becomes uniform in the length direction of 13, and accurate alignment can be achieved.
  • the notch 7 is formed so that the exposed width B of one plate member 1 and the exposed width D of the other plate member 13 in the corner joint are the same, a uniform R surface G is formed. It is possible to irradiate laser at a constant position and a constant angle with respect to the corner joint without changing the irradiation position and the irradiation angle. That is, in this embodiment, since it is only necessary to always irradiate the central part of the corner joint at 45 °, it is not necessary to perform barren operations and controls.
  • both plate materials can be accurately and easily aligned, and a uniform R surface G can be formed to obtain sufficient welding strength.
  • the plate thickness of both plate members is the same, but the present invention can also be applied to cases where the plate thicknesses of both plate members are different.
  • the exposed width B of one plate member 1 and the exposure of the other plate member 13 are set.
  • the width dimension c of the notch 7 of one plate member 1 is set to 1 mm (depth dimension d is 0.6 mm) so that the width D is both 0.6 mm.
  • the exposed width B of one plate member 1 and the exposure of the other plate member 13 are set.
  • the width dimension c of the notch 7 of the one plate member 1 can be set to 0.9 mm (depth dimension d is 0.5 mm) so that the width D is equal to 0.7 mm. .
  • the depth dimension d of the notch 7 of one plate member 1 is preferably a predetermined value close to half the plate thickness of one plate member 1. .
  • the rectangular joint is a right angle, but the present invention can also be applied to a corner joint other than a right angle.
  • the notch is a rectangular joint with a right angle, but the present invention only requires that the other plate member be easily formed even if the notch has an obtuse angle shape or the like. .
  • FIG. 8 is an explanatory view of a modified example in which the end portion 9 of the other plate member 13 is incorporated into the notch 7a of one plate member 1 to form a right angle corner joint, and (a) is a notch 7a. It is explanatory drawing which showed a mode that the edge part 9 was assembled
  • FIG. 8 is an explanatory view of a modified example in which the end portion 9 of the other plate member 13 is incorporated into the notch 7a of one plate member 1 to form a right angle corner joint, and (a) is a notch 7a. It is explanatory drawing which showed a mode that the edge part 9 was assembled
  • the notch 7a of one plate member 1 has an obtuse shape, and the other plate member 13 is engaged with the notch 7a.
  • the notch 7a of one plate member 1 is used as a guide, and the end 9 of the other plate member 13 is aligned with the notch 7a. Positioning is simple and accurate, and the amount of overlap between the end of one plate member 1 and the end 9 of the other plate member 13 is also uniform in the length direction of the plate members 1 and 13, so that accurate alignment is achieved. Can be achieved.
  • the notch 7a is formed so that the exposed width of one plate member 1 and the exposed width of the other plate member 13 in the corner joint are the same, a uniform R surface G can be formed, There is no need to change the irradiation position and the irradiation angle, and for example, it is only necessary to always irradiate at 45 ° in the center.
  • FIG. 9 is an explanatory diagram of a modified example in which the end 9a of the other plate member 13 is incorporated into the notch 7a of one plate member 1 and corner joints other than a right angle are aligned
  • FIG. 8 is an explanatory view showing a state in which the end portion 9a is assembled in the notch 7a
  • FIG. 9 (b) is an explanatory view showing a state in which the other plate member 13 is engaged with one plate member 1.
  • the notch 7a of one plate member 1 has an obtuse angle shape, and the notched portion 7a has an end 9a machined into an acute angle of the other plate member 13. In combination, an acute angle joint is formed.
  • the notch 7a of one plate member 1 is used as a guide, and the end 9a of the other plate member 13 is aligned with the notch 7a. Positioning is simple and accurate, and the amount of overlap between the end of one plate member 1 and the end 9 of the other plate member 13 is also uniform in the length direction of the plate members 1 and 13, so that accurate alignment is achieved. Can be achieved.
  • the notch 7a is formed so that the exposed width of one plate member 1 and the exposed width of the other plate member 13 in the corner joint are the same, a uniform R surface G can be formed, There is no need to change the irradiation position and the irradiation angle, and for example, it is only necessary to always irradiate at 45 ° in the center.
  • both plate materials can be aligned accurately and easily.

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)

Abstract

In this laser welding method for a corner joint, one plate member is made to abut another plate member, a corner joint is formed, and welding is performed. The laser welding method for a corner joint includes: a step in which one plate member is prepared by performing end surface processing in which a notch is made in an end surface of said plate member; a step in which the other plate member is prepared; a step in which the other plate member is fit to the notch in the end surface of the one plate member and a corner joint is formed; and a step in which laser welding is performed on the corner joint.

Description

角継手のレーザ溶接方法Laser welding method for corner joints
　本発明は、レーザによる角継手の溶接方法に関するものである。 The present invention relates to a method for welding a corner joint by laser.
　従来から、高品質なＲ面溶接を得るためにファイバレーザで角継手を溶接する方法が知られている。 Conventionally, a method of welding a corner joint with a fiber laser is known in order to obtain high-quality R-surface welding.
　例えば、直角の角継手の場合に、高品質なＲ面溶接を形成するために、一方の板部材の端面上に、他方の板部材の端部の内面側を当接させてつき合わせる。その際、一方の板部材の端面の一部が露出するように、他方の板部材の端部を引き、その状態で、その角継手にファイバレーザを照射して溶接を行う方法が提案されている（特許文献１、２）。 For example, in the case of a right-angled corner joint, in order to form a high-quality R-surface weld, the inner surface side of the end portion of the other plate member is brought into contact with the end surface of the other plate member. At that time, a method has been proposed in which the end portion of the other plate member is pulled so that a part of the end surface of one plate member is exposed, and in that state, the fiber laser is irradiated to the corner joint for welding. (Patent Documents 1 and 2).
　その場合、一方の板部材の端面の半分だけ他方の板部材の端部を引いて半分を重ねる１/２引きや一方の板部材の端面の１/３だけ他方の板部材の端部を引いて２/３を重ねる１/３引きが知られていた。図１０に、１/３引きの角継手溶接の一例を示す。 In that case, pull the end of the other plate member by half pulling the end of the other plate member by half of the end surface of one plate member, or pull the end of the other plate member by 1/3 of the end surface of one plate member. The 1/3 pull that overlaps 2/3 was known. FIG. 10 shows an example of 1 / 3-pull corner joint welding.
　図１０は、従来の１/３引きの角継手溶接の概略説明図である。 FIG. 10 is a schematic explanatory diagram of conventional 1 / 3-pull corner joint welding.
特開平１－１８１９７０号公報Japanese Patent Laid-Open No. 1-181970 特開２０１５－６１４３３号公報Japanese Patent Laying-Open No. 2015-61433
　しかしながら、上述のような一方の板部材の端面上において他方の板部材の端部を引いて溶接を行う方法では、以下のような問題点があった。 However, the method of performing welding by pulling the end of the other plate member on the end surface of the one plate member as described above has the following problems.
　一方の板部材を引いた角継手溶接では、板部材の長さが長いと、その長手方向に沿った双方の板部材の位置合わせが難しかった。すなわち、一方の板部材の端面と他方の板部材の端部の内面との重ね量が不均一になり易く、溶接不良の原因となってしまっていた。 In corner joint welding with one plate member pulled, if the plate member is long, it is difficult to align both plate members along the longitudinal direction. That is, the amount of overlap between the end surface of one plate member and the inner surface of the end portion of the other plate member is likely to be non-uniform, resulting in poor welding.
　このように、重ね量が不均一になった結果、重ね量が少ない場所では、照射されたファイバレーザが裏側へ抜けてしまい、十分に広いＲ面が形成されず、十分な溶接強度を得ることができない問題があった。 As described above, as a result of the non-uniformity of the overlap amount, the irradiated fiber laser escapes to the back side in a place where the overlap amount is small, and a sufficiently wide R surface is not formed, thereby obtaining a sufficient welding strength. There was a problem that could not be.
　また、一方の板部材を引いた角継手溶接では、１/２引きであっても、１/３引きであっても、一方の板部材の端面の露出部の広さと、他方の板部材の端面の広さとが異なるため、溶接において均等な肉盛りができなかった。その結果、Ｒ面が偏ってしまい、Ｒ面の端部にエッジができてしまい、外観の品質を損なう問題があった。 In addition, in the corner joint welding with one plate member pulled, the width of the exposed portion of the end face of one plate member and the other plate member of both the 1/2 pull and 1/3 pull Since the width of the end face is different, uniform build-up was not possible in welding. As a result, there is a problem that the R surface is biased and an edge is formed at the end of the R surface, which deteriorates the quality of the appearance.
　そのため、一方の板部材を引いた角継手溶接では、図１０に示すようなレーザＬＢの照射角度や照射位置を常に変える必要があった。 Therefore, in the corner joint welding with one plate member pulled, it is necessary to always change the irradiation angle and irradiation position of the laser LB as shown in FIG.
　また、一方の板部材の端面上において他方の板部材の端部を引いて位置合わせをしても、その合わせ位置が簡単にずれてしまうため、合わせ部の仮止め作業等をして固定しなければならない欠点もあった。 Also, even if the end of the other plate member is pulled on the end face of one plate member and the alignment is performed, the alignment position will be easily displaced. There were also drawbacks that had to be made.
　本発明は、上記した事情に着目してなされたものであり、その目的とするところは、両板材の位置合わせが正確かつ容易に行える角継手の溶接方法を提供することである。 The present invention has been made paying attention to the above-described circumstances, and an object of the present invention is to provide a method of welding corner joints in which both plate materials can be aligned accurately and easily.
　本発明は上述の問題を解決するためのものであり、以下の特徴を有する方法である。 The present invention is for solving the above-mentioned problems, and is a method having the following characteristics.
　本発明は、一方の板部材に他方の板部材を突き合わせて角継手を形成して溶接を行う角継手の溶接方法であり、前記一方の板部材の端面に端面加工を施す工程と、その端面加工に合せて前記他方の板部材の突き合わせを行って角継手を形成する工程と、を有することを特徴とする。 The present invention is a welding method of a corner joint that performs welding by forming a corner joint by abutting the other plate member to one plate member, and performing an end face processing on an end face of the one plate member; A step of matching the other plate member in accordance with processing to form a corner joint.
　本発明の他の特徴は、前記角継手の溶接方法において、前記角継手に対してレーザ溶接を行うことである。 Another feature of the present invention is that laser welding is performed on the corner joint in the corner joint welding method.
　本発明の他の特徴は、前記角継手の溶接方法において、前記端面加工が、前記他方の板部材が位置決め容易な形状である。 Another feature of the present invention is that the end face processing is a shape in which the other plate member can be easily positioned in the welding method of the corner joint.
　本発明の他の特徴は、前記角継手の溶接方法において、前記角継手において前記一方の板部材の露出幅と、前記他方の板部材の露出幅とが同じとなるように、前記端面加工が施されることである。 Another feature of the present invention is that, in the welding method of the corner joint, the end face machining is performed so that the exposed width of the one plate member and the exposed width of the other plate member in the corner joint are the same. Is to be applied.
　本発明の他の特徴は、前記角継手の溶接方法において、前記角継手に対し常に一定の位置と一定の角度でレーザ照射することである。 Another feature of the present invention is that, in the welding method of the corner joint, laser irradiation is always performed at a certain position and a certain angle with respect to the corner joint.
本発明に係わる端面加工された板部材の実施形態を示す図であり、（ａ）は、板部材の斜視図であり、（ｂ）は、板部材の側面図であり、（ｃ）は、端面加工された板部材の端部の拡大図である。BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows embodiment of the plate member by which the end surface processing concerning this invention was carried out, (a) is a perspective view of a plate member, (b) is a side view of a plate member, (c) is It is an enlarged view of the edge part of the plate member by which the end surface process was carried out. 本発明に係わる角継手の溶接方法の一実施形態の動作フローチャートである。It is an operation | movement flowchart of one Embodiment of the welding method of the corner joint concerning this invention. 板部材１の両辺において切り欠きを形成する方法の一例を断面で示した説明図である。It is explanatory drawing which showed in cross section an example of the method of forming a notch in both sides of the plate member 1. FIG. 板材の板厚ｈと、切り欠き７の所定の幅寸法ｃおよび所定の深さ寸法ｄとの具体例を示すテーブル図である。It is a table figure which shows the specific example of board thickness h of a board | plate material, the predetermined width dimension c of the notch 7, and the predetermined depth dimension d. 端面加工が施された一方の板部材１と同じ板厚の他方の板部材１３の側面図である。It is a side view of the other board member 13 of the same board thickness as the one board member 1 to which end surface processing was given. 一方の板部材１の切り欠き７に、他方の板部材１３の端部９を組み込んで直角の角継手合わせを行う説明図であり、（ａ）は、切り欠き７に端部９を組む込む様子を示した説明図であり、（ｂ）は、一方の板部材１に他方の板部材１３が係合した状態を示す説明図である。It is explanatory drawing which integrates the edge part 9 of the other board member 13 in the notch 7 of one board member 1, and performs a right angle | corner corner joint alignment, (a) incorporates the edge part 9 in the notch 7. FIG. It is explanatory drawing which showed a mode, (b) is explanatory drawing which shows the state which the other board member 13 engaged with the one board member 1. As shown in FIG. レーザ光による角継手溶接の説明図であり、（ａ）は、角継手にレーザ光を照射している様子を示した説明図であり、（ｂ）は、角継手溶接により形成されたＲ面を示す説明図である。It is explanatory drawing of the corner joint welding by a laser beam, (a) is explanatory drawing which showed a mode that the laser beam was irradiated to a corner joint, (b) is R surface formed by the corner joint welding It is explanatory drawing which shows. 一方の板部材１の切り欠き７ａに、他方の板部材１３の端部９を組み込んで直角の角継手合わせとした変形例の説明図であり、（ａ）は、切り欠き７ａに端部９を組む込む様子を示した説明図であり、（ｂ）は、一方の板部材１に他方の板部材１３が係合した状態を示す説明図である。It is explanatory drawing of the modification which made the notch 7a of the one board member 1 and the edge part 9 of the other board member 13 assembled the right angle corner joint, (a) is the edge part 9 in the notch 7a. FIG. 5B is an explanatory view showing a state in which the other plate member 13 is engaged with one plate member 1. 一方の板部材１の切り欠き７ａに、他方の板部材１３の端部９ａを組み込んで直角以外の角継手合わせとした変形例の説明図であり、（ａ）は、切り欠き７ａに端部９ａを組む込む様子を示した説明図であり、（ｂ）は、一方の板部材１に他方の板部材１３が係合した状態を示す説明図である。It is explanatory drawing of the modification which incorporated the edge part 9a of the other board member 13 in the notch 7a of the one board member 1, and made the corner joint alignment other than a right angle, (a) is an edge part in the notch 7a. It is explanatory drawing which showed a mode that 9a was assembled, (b) is explanatory drawing which shows the state which the other plate member 13 engaged with the one plate member 1. FIG. 従来の１/３引きの角継手溶接の概略説明図である。It is a schematic explanatory drawing of the conventional 1/3 pull corner joint welding.
　以下、図面を用いて本発明を実施した実施形態を説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
　本願発明は、２つの部材を付き合わせて角継手溶接を行う場合に、一方の部材の端面に端面加工を施して、その端面加工部分に、他方の部材の端部を角継手合わせを行うようにしたものである。 In the present invention, when corner joint welding is performed by attaching two members together, end face processing is performed on the end face of one member, and the end of the other member is corner joint matched to the end face processed portion. It is a thing.
　まず、一方の部材の端面加工の実施形態から説明する。 First, an embodiment of end face processing of one member will be described.
　図１は、本発明に係わる端面加工された板部材の実施形態を示す図であり、（ａ）は、板部材の斜視図であり、（ｂ）は、板部材の側面図であり、（ｃ）は、端面加工された板部材の端部の拡大図である。 FIG. 1 is a view showing an embodiment of a plate member having an end face processed according to the present invention, (a) is a perspective view of the plate member, (b) is a side view of the plate member, c) is an enlarged view of an end portion of a plate member subjected to end face processing.
　図１（ａ）、（ｂ）に示すように、この板部材１は、長方形状となっており、長手方向の両辺３、５に端面加工が施されている。この端面加工は、後述するように、他方の板部材１３が位置決め容易な形状となっている。 As shown in FIGS. 1 (a) and 1 (b), the plate member 1 has a rectangular shape, and end faces are processed on both sides 3 and 5 in the longitudinal direction. As will be described later, this end face processing is such that the other plate member 13 is easily positioned.
　図１（ｃ）に示すように、この板部材１の両辺３、５においては、所定の深さ寸法ｄおよび所定の幅寸法ｃだけ切り欠き７が入れられている。この切り欠き７に、他方の板部材１３の端部９が組み込まれて直角の角継手合わせが行われる（図６参照）。 As shown in FIG. 1 (c), notches 7 are cut in both sides 3 and 5 of the plate member 1 by a predetermined depth dimension d and a predetermined width dimension c. The end portion 9 of the other plate member 13 is incorporated into the notch 7, and right angle corner joint matching is performed (see FIG. 6).
　次に、図２を参照して、本発明に係わる角継手の溶接方法の一実施形態について説明する。 Next, with reference to FIG. 2, an embodiment of a welding method for a corner joint according to the present invention will be described.
　図２は、本発明に係わる角継手の溶接方法の一実施形態の動作フローチャートである。 FIG. 2 is an operation flowchart of one embodiment of the method of welding corner joints according to the present invention.
　ステップ１０１において、一方の板部材１の端部に端面加工を施して用意する。 In step 101, the end portion of one plate member 1 is prepared by performing end face processing.
　板部材１の両辺３、５において切り欠きを形成する方法の一例を説明する。ここでは、複数枚の板部材１を形成する方法を採用する。 An example of a method for forming notches on both sides 3 and 5 of the plate member 1 will be described. Here, a method of forming a plurality of plate members 1 is employed.
　図３は、板部材１の両辺３、５において切り欠きを形成する方法の一例を断面で示した説明図である。 FIG. 3 is an explanatory view showing, in section, an example of a method for forming a notch on both sides 3 and 5 of the plate member 1.
　図３に示すように、長尺の板材の所定部分に、例えば、パンチングマシンで切り欠き金型等を使用したプレーナー加工により所定幅の溝部１１を形成する。ここで、溝部１１の所定幅Ｗが、切り欠き７の所定の幅寸法ｃの２倍の幅となり、溝部１１の深さが、切り欠き７の所定の深さ寸法ｄとなるように形成する。この実施形態では、切り欠き７の所定の幅寸法ｃおよび所定の深さ寸法ｄは、板部材１の板厚の半分（１/２）に設定されている。 As shown in FIG. 3, a groove 11 having a predetermined width is formed in a predetermined portion of a long plate material by, for example, a planar processing using a notch die or the like with a punching machine. Here, the predetermined width W of the groove 11 is twice the predetermined width c of the notch 7, and the depth of the groove 11 is the predetermined depth d of the notch 7. . In this embodiment, the predetermined width dimension c and the predetermined depth dimension d of the notch 7 are set to half (1/2) the plate thickness of the plate member 1.
　なお、溝部１１の所定幅および深さは、後述するように、一方の板部材１および他方の板部材１３の板厚によって変更される。 In addition, the predetermined width and depth of the groove part 11 are changed by the plate thickness of the one plate member 1 and the other plate member 13 as described later.
　すなわち、一方の板部材１の露出幅Ｂと、他方の板部材１３の露出幅Ｄとが同じとなるように設定することができる（図７（ａ）参照）。 That is, the exposed width B of one plate member 1 and the exposed width D of the other plate member 13 can be set to be the same (see FIG. 7A).
　そして、図３に示すように、レーザ切断加工等により溝部１１の真ん中Ａで切り分ける。このようにして、両辺３、５において切り欠きが形成された板部材１が複数枚出来上がる。 Then, as shown in FIG. 3, it is cut at the middle A of the groove 11 by laser cutting or the like. In this way, a plurality of plate members 1 having notches formed on both sides 3 and 5 are completed.
　図４は、板材の板厚ｈと、切り欠き７の所定の幅寸法ｃおよび所定の深さ寸法ｄとの具体例を示すテーブル図である。 FIG. 4 is a table showing specific examples of the plate thickness h, the predetermined width dimension c and the predetermined depth dimension d of the notch 7.
　次に、ステップ１０３において、一方の板部材１に組合せる他方の板部材１３を用意する。 Next, in step 103, the other plate member 13 to be combined with one plate member 1 is prepared.
　図５は、端面加工が施された一方の板部材１と同じ板厚の他方の板部材１３の側面図である。 FIG. 5 is a side view of the other plate member 13 having the same plate thickness as the one plate member 1 subjected to end face processing.
　すなわち、この実施形態では、図５に示すように、一方の板部材１と同じ板厚の他方の板部材１３が用意される。 That is, in this embodiment, as shown in FIG. 5, the other plate member 13 having the same plate thickness as the one plate member 1 is prepared.
　なお、後述するように、他方の板部材１３の板厚を、一方の板部材１の板厚と異なる板厚とすることもできる。 As will be described later, the plate thickness of the other plate member 13 may be different from the plate thickness of the one plate member 1.
　ステップ１０５において、一方の板部材１の切り欠き７に、他方の板部材１３の端部９を組み込んで（係合して）角継手合わせを行う。 In Step 105, corner joint alignment is performed by incorporating (engaging) the end 9 of the other plate member 13 into the notch 7 of the one plate member 1.
　図６は、一方の板部材１の切り欠き７に、他方の板部材１３の端部９を組み込んで直角の角継手合わせを行う説明図であり、（ａ）は、切り欠き７に端部９を組み込む様子を示した説明図であり、（ｂ）は、一方の板部材１に他方の板部材１３が係合した状態を示す説明図である。 FIG. 6 is an explanatory view in which the end portion 9 of the other plate member 13 is assembled into the notch 7 of one plate member 1 to perform a right angle corner joint, and (a) is an end portion of the notch 7. 9 is an explanatory view showing a state in which 9 is incorporated, and FIG. 9B is an explanatory view showing a state in which the other plate member 13 is engaged with one plate member 1.
　まず、図６（ａ）に示すように、一方の板部材１の切り欠き７に他方の板部材１３の端部９を位置合わせしながら、切り欠き７に端部９を組み込む。 First, as shown in FIG. 6 (a), the end 9 is assembled into the notch 7 while aligning the end 9 of the other plate member 13 with the notch 7 of the one plate member 1.
　この組み込み作業において、板部材１および板部材１３が長尺の板材である場合でも、一方の板部材１の切り欠き７を目安にして、その切り欠き７に他方の板部材１３の端部９が収まるように位置合わせすれば良いので、双方の板部材の位置合わせが簡単になる。 In this assembling operation, even when the plate member 1 and the plate member 13 are long plate members, the notch 7 of one plate member 1 is used as a guide, and the end 9 of the other plate member 13 is inserted into the notch 7. Therefore, the positioning of both plate members can be simplified.
　それにより、一方の板部材１の端部と他方の板部材１３の端部９との重ね量も、板部材１、１３の長さ方向で均一となり、正確な位置合わせが達成できる。 Thereby, the overlapping amount of the end portion of one plate member 1 and the end portion 9 of the other plate member 13 is also uniform in the length direction of the plate members 1 and 13, and accurate alignment can be achieved.
　また、切り欠き７に端部９が組み込まれているため、一度位置合わせすれば、簡単にはその合わせ位置がずれたりせず、仮止め作業をする必要も無くなる。 Also, since the end portion 9 is incorporated in the notch 7, once the alignment is performed, the alignment position is not easily shifted, and there is no need for temporary fixing work.
　この実施形態の場合、図１（ｃ）に示すように、一方の板部材１の切り欠き７が、板部材１の板厚の半分（１/２）の深さ寸法ｄで、板部材１の板厚の半分（１/２）の幅寸法ｃで形成されている。 In the case of this embodiment, as shown in FIG. 1 (c), the notch 7 of one plate member 1 has a depth dimension d that is half (1/2) the plate thickness of the plate member 1, and the plate member 1. The width dimension c is half (1/2) of the plate thickness.
　そのため、一方の板部材１の端部と他方の板部材１３の端部９との重ね量は、深さ方向および幅方向共に、板部材１の板厚の半分（１/２）の寸法となる。 Therefore, the overlapping amount of the end portion of one plate member 1 and the end portion 9 of the other plate member 13 is half the thickness (1/2) of the plate thickness of the plate member 1 in both the depth direction and the width direction. Become.
　次に、ステップ１０７において、レーザ照射により角継手の溶接を行う。 Next, in step 107, corner joints are welded by laser irradiation.
　なお、この実施形態では、直角の角継手を例にとって説明したが、直角以外の角継手でも良い。 In this embodiment, a right angle corner joint has been described as an example, but a corner joint other than a right angle may be used.
　図７は、レーザ光による角継手溶接の説明図であり、（ａ）は、角継手にレーザ光を照射している様子を示した説明図であり、（ｂ）は、角継手溶接により形成されたＲ面を示す説明図である。 FIG. 7 is an explanatory view of corner joint welding by laser light, (a) is an explanatory view showing a state in which the corner joint is irradiated with laser light, and (b) is formed by corner joint welding. It is explanatory drawing which shows the made R surface.
　図７（ａ）に示すように、角継手に向かって所定の照射角でファイバレーザによるレーザ光ＬＢを照射して角継手の溶接が行われる。ここで、所定の照射角は４５°となっている。 As shown in FIG. 7A, the corner joint is welded by irradiating the laser beam LB by the fiber laser at a predetermined irradiation angle toward the corner joint. Here, the predetermined irradiation angle is 45 °.
　このような角継手溶接によれば、重ね量が均一となるため、照射されたファイバレーザが裏側へ抜けてしまうことなく、図７（ｂ）に示すように、十分に均一なＲ面Ｇが形成される。 According to such a corner joint welding, since the overlap amount becomes uniform, the irradiated fiber laser does not escape to the back side, and a sufficiently uniform R surface G is formed as shown in FIG. 7B. It is formed.
　すなわち、図７（ａ）に示すように、一方の板部材１と他方の板部材１３とは同じ板厚であり、双方の重ね量は、図１（ｃ）で説明したように、板厚の１/２となっている。そのため、図７（ａ）に示すように、角継手における一方の板部材１の露出幅Ｂ（寸法ｄと同じ）と、他方の板部材１３の露出幅Ｄ（寸法ｃと同じ）とは、同じ板厚の１/２（もしくは、ほぼ１/２）となる。 That is, as shown in FIG. 7 (a), one plate member 1 and the other plate member 13 have the same plate thickness, and the overlapping amount of both is the plate thickness as described in FIG. 1 (c). 1/2. Therefore, as shown in FIG. 7A, the exposed width B (same as dimension d) of one plate member 1 and the exposed width D (same as dimension c) of the other plate member 13 in the corner joint are: It will be 1/2 (or almost 1/2) of the same plate thickness.
　また、図７（ａ）に示すように、角継手における一方の板部材１の露出幅Ｂと、他方の板部材１３の露出幅Ｄとは、同じ板厚の１/２となるので、溶融幅Ｅも、従来の１/２引きあるいは１/３引きのものより小さくできる。 Further, as shown in FIG. 7 (a), the exposed width B of one plate member 1 and the exposed width D of the other plate member 13 in the corner joint are 1/2 of the same plate thickness. The width E can also be made smaller than that of the conventional 1/2 pulling or 1/3 pulling.
　上述のように、この実施形態によれば、一方の板部材１に切り欠き７を設け、その切り欠き７を目安にして、その切り欠き７に他方の板部材１３の端部９が収まるように位置合わせしているので、双方の板部材の位置合わせが簡単かつ正確になり、一方の板部材１の端部と他方の板部材１３の端部９との重ね量も、板部材１、１３の長さ方向で均一となり、正確な位置合わせが達成できる。 As described above, according to this embodiment, the notch 7 is provided in one plate member 1, and the end 9 of the other plate member 13 is accommodated in the notch 7 using the notch 7 as a guide. Therefore, the positioning of both plate members is simple and accurate, and the amount of overlap between the end portion of one plate member 1 and the end portion 9 of the other plate member 13 is also the plate member 1, It becomes uniform in the length direction of 13, and accurate alignment can be achieved.
　さらに、角継手における一方の板部材１の露出幅Ｂと、他方の板部材１３の露出幅Ｄとが同じとなるように、切り欠き７を形成しているので、均一なＲ面Ｇが形成でき、照射位置および照射角度を変える必要なく、角継手に対し常に一定の位置と一定の角度でレーザ照射すれば良いこととなる。すなわち、この実施形態では、常に角継手の中央部分に４５°で照射すれば良いので、不毛な操作や制御が不要になる。 Furthermore, since the notch 7 is formed so that the exposed width B of one plate member 1 and the exposed width D of the other plate member 13 in the corner joint are the same, a uniform R surface G is formed. It is possible to irradiate laser at a constant position and a constant angle with respect to the corner joint without changing the irradiation position and the irradiation angle. That is, in this embodiment, since it is only necessary to always irradiate the central part of the corner joint at 45 °, it is not necessary to perform barren operations and controls.
　また、１/２引や１/３引きに比べ、溶接箇所の部材量が多くなるため高出力でも抜けにくくなる。それによって大きなＲ面の外観の作成も可能になる。 Also, compared to 1/2 drawing or 1/3 drawing, the amount of material at the welded portion increases, so it is difficult to pull out even at high output. This also makes it possible to create a large R-surface appearance.
　前記実施形態によれば、両板材の位置合わせが正確かつ容易に行え、かつ、均一なＲ面Ｇを形成して十分な溶接強度を得ることができる。 According to the above embodiment, both plate materials can be accurately and easily aligned, and a uniform R surface G can be formed to obtain sufficient welding strength.
　この発明は前述の発明の実施の形態に限定されることなく、適宜な変更を行うことにより、その他の態様で実施し得るものである。 The present invention is not limited to the embodiment of the invention described above, and can be implemented in other modes by making appropriate modifications.
　この実施形態では、双方の板部材の板厚を同じとしたが、本発明は、双方の板部材の板厚が異なる場合も適応できる。 In this embodiment, the plate thickness of both plate members is the same, but the present invention can also be applied to cases where the plate thicknesses of both plate members are different.
　例えば、一方の板部材１の板厚を１.２ｍｍとし、他方の板部材１３の板厚を１.６ｍｍとした場合、一方の板部材１の露出幅Ｂと、他方の板部材１３の露出幅Ｄとが共に０.６ｍｍとなるように、一方の板部材１の切り欠き７の幅寸法ｃを、１ｍｍ（深さ寸法ｄを０.６ｍｍ）と設定する。 For example, when the plate thickness of one plate member 1 is 1.2 mm and the plate thickness of the other plate member 13 is 1.6 mm, the exposed width B of one plate member 1 and the exposure of the other plate member 13 are set. The width dimension c of the notch 7 of one plate member 1 is set to 1 mm (depth dimension d is 0.6 mm) so that the width D is both 0.6 mm.
　また、一方の板部材１の板厚を１.２ｍｍとし、他方の板部材１３の板厚を１.６ｍｍとした場合、一方の板部材１の露出幅Ｂと、他方の板部材１３の露出幅Ｄとが同じ幅である０.７ｍｍとなるように、一方の板部材１の切り欠き７の幅寸法ｃを、０.９ｍｍ（深さ寸法ｄを０.５ｍｍ）と設定することもできる。 When the plate thickness of one plate member 1 is 1.2 mm and the plate thickness of the other plate member 13 is 1.6 mm, the exposed width B of one plate member 1 and the exposure of the other plate member 13 are set. The width dimension c of the notch 7 of the one plate member 1 can be set to 0.9 mm (depth dimension d is 0.5 mm) so that the width D is equal to 0.7 mm. .
　ただし、レーザ溶接におけるファイバレーザの裏側へ抜けを考慮すると、一方の板部材１の切り欠き７の深さ寸法ｄは、一方の板部材１の板厚の半分に近い所定値であることが望ましい。 However, in consideration of the dropout of the fiber laser in laser welding, the depth dimension d of the notch 7 of one plate member 1 is preferably a predetermined value close to half the plate thickness of one plate member 1. .
　前記角継手の溶接方法の実施形態によれば、両板材の位置合わせが正確かつ容易に行え、かつ、均一なＲ面Ｇを形成して十分な溶接強度を得ることができる。 According to the embodiment of the method for welding corner joints, it is possible to accurately and easily align both plate materials, and to form a uniform R surface G to obtain sufficient welding strength.
　また、この実施形態の場合、直角の角継手となっていたが、本発明は、直角以外の角継手にも適用できる。 In the case of this embodiment, the rectangular joint is a right angle, but the present invention can also be applied to a corner joint other than a right angle.
　すなわち、この実施形態の場合、切り欠きが直角の角継手となっていたが、本願発明は、切り欠きが鈍角形状等であっても、他方の板部材が位置決め容易に形成されていれば良い。 That is, in the case of this embodiment, the notch is a rectangular joint with a right angle, but the present invention only requires that the other plate member be easily formed even if the notch has an obtuse angle shape or the like. .
　以下に、切り欠きが鈍角形状の場合の変形例について説明する。 Hereinafter, a modified example in the case where the notch has an obtuse angle shape will be described.
　図８は、一方の板部材１の切り欠き７ａに、他方の板部材１３の端部９を組み込んで直角の角継手合わせとした変形例の説明図であり、（ａ）は、切り欠き７ａに端部９を組む込む様子を示した説明図であり、（ｂ）は、一方の板部材１に他方の板部材１３が係合した状態を示す説明図である。 FIG. 8 is an explanatory view of a modified example in which the end portion 9 of the other plate member 13 is incorporated into the notch 7a of one plate member 1 to form a right angle corner joint, and (a) is a notch 7a. It is explanatory drawing which showed a mode that the edge part 9 was assembled | attached to (2), (b) is explanatory drawing which shows the state which the other plate member 13 engaged with the one plate member 1. FIG.
　この変形例では、図８に示すように、一方の板部材１の切り欠き７ａが鈍角形状となっており、その切り欠き７ａに、他方の板部材１３が係合するようになっている。 In this modification, as shown in FIG. 8, the notch 7a of one plate member 1 has an obtuse shape, and the other plate member 13 is engaged with the notch 7a.
　この変形例によっても、一方の板部材１の切り欠き７ａを目安にして、その切り欠き７ａに他方の板部材１３の端部９が収まるように位置合わせしているので、双方の板部材の位置合わせが簡単かつ正確になり、一方の板部材１の端部と他方の板部材１３の端部９との重ね量も、板部材１、１３の長さ方向で均一となり、正確な位置合わせが達成できる。 Also in this modified example, the notch 7a of one plate member 1 is used as a guide, and the end 9 of the other plate member 13 is aligned with the notch 7a. Positioning is simple and accurate, and the amount of overlap between the end of one plate member 1 and the end 9 of the other plate member 13 is also uniform in the length direction of the plate members 1 and 13, so that accurate alignment is achieved. Can be achieved.
　さらに、角継手における一方の板部材１の露出幅と、他方の板部材１３の露出幅とが同じとなるように、切り欠き７ａを形成しているので、均一なＲ面Ｇが形成でき、照射位置および照射角度を変える必要なく、例えば常に中央に４５°で照射すれば良いので、不毛な操作や制御が不要になる。 Furthermore, since the notch 7a is formed so that the exposed width of one plate member 1 and the exposed width of the other plate member 13 in the corner joint are the same, a uniform R surface G can be formed, There is no need to change the irradiation position and the irradiation angle, and for example, it is only necessary to always irradiate at 45 ° in the center.
　図９は、一方の板部材１の切り欠き７ａに、他方の板部材１３の端部９ａを組み込んで直角以外の角継手合わせを行った場合の変形例の説明図であり、（ａ）は、切り欠き７ａに端部９ａを組む込む様子を示した説明図であり、（ｂ）は、一方の板部材１に他方の板部材１３が係合した状態を示す説明図である。 FIG. 9 is an explanatory diagram of a modified example in which the end 9a of the other plate member 13 is incorporated into the notch 7a of one plate member 1 and corner joints other than a right angle are aligned, (a) FIG. 8 is an explanatory view showing a state in which the end portion 9a is assembled in the notch 7a, and FIG. 9 (b) is an explanatory view showing a state in which the other plate member 13 is engaged with one plate member 1. FIG.
　この変形例では、図９に示すように、一方の板部材１の切り欠き７ａが鈍角形状となっており、その切り欠き７ａに、他方の板部材１３の鋭角に加工した端部９ａが係合し、鋭角の角継手を形成するようになっている。 In this modification, as shown in FIG. 9, the notch 7a of one plate member 1 has an obtuse angle shape, and the notched portion 7a has an end 9a machined into an acute angle of the other plate member 13. In combination, an acute angle joint is formed.
　この変形例によっても、一方の板部材１の切り欠き７ａを目安にして、その切り欠き７ａに他方の板部材１３の端部９ａが収まるように位置合わせしているので、双方の板部材の位置合わせが簡単かつ正確になり、一方の板部材１の端部と他方の板部材１３の端部９との重ね量も、板部材１、１３の長さ方向で均一となり、正確な位置合わせが達成できる。 Also in this modified example, the notch 7a of one plate member 1 is used as a guide, and the end 9a of the other plate member 13 is aligned with the notch 7a. Positioning is simple and accurate, and the amount of overlap between the end of one plate member 1 and the end 9 of the other plate member 13 is also uniform in the length direction of the plate members 1 and 13, so that accurate alignment is achieved. Can be achieved.
　さらに、角継手における一方の板部材１の露出幅と、他方の板部材１３の露出幅とが同じとなるように、切り欠き７ａを形成しているので、均一なＲ面Ｇが形成でき、照射位置および照射角度を変える必要なく、例えば常に中央に４５°で照射すれば良いので、不毛な操作や制御が不要になる。 Furthermore, since the notch 7a is formed so that the exposed width of one plate member 1 and the exposed width of the other plate member 13 in the corner joint are the same, a uniform R surface G can be formed, There is no need to change the irradiation position and the irradiation angle, and for example, it is only necessary to always irradiate at 45 ° in the center.
　本発明によれば、両板材の位置合わせが正確かつ容易に行える。 According to the present invention, both plate materials can be aligned accurately and easily.

Claims (5)

  1. 　一方の板部材に他方の板部材を突き合わせて角継手を形成して溶接を行う角継手の溶接方法であって、前記一方の板部材の端面に端面加工を施す工程と、その端面加工に合せて前記他方の板部材の突き合わせを行って角継手を形成する工程と、を有することを特徴とする角継手の溶接方法。 A welding method for a corner joint in which a corner plate is formed by abutting the other plate member against one plate member and welding is performed. A step of abutting the other plate member to form a corner joint.
  2. 　請求項１に記載の角継手の溶接方法において、前記角継手に対してレーザ溶接を行う。 2. The welding method for a corner joint according to claim 1, wherein laser welding is performed on the corner joint.
  3. 　請求項１に記載の角継手の溶接方法において、前記端面加工は、前記他方の板部材が位置決め容易な形状である。 The corner joint welding method according to claim 1, wherein the end face processing has a shape in which the other plate member can be easily positioned.
  4. 　請求項１に記載の角継手の溶接方法において、前記角継手において前記一方の板部材の露出幅と、前記他方の板部材の露出幅とが同じとなるように、前記端面加工が施される。 The corner joint welding method according to claim 1, wherein the end face processing is performed so that the exposed width of the one plate member and the exposed width of the other plate member are the same in the square joint. .
  5. 　請求項２に記載の角継手の溶接方法において、前記角継手に対し常に一定の位置と一定の角度でレーザ照射する。
          3. The method for welding corner joints according to claim 2, wherein laser irradiation is always performed on the corner joints at a constant position and at a constant angle.
PCT/JP2019/017381 2018-05-09 2019-04-24 Laser welding method for corner joint WO2019216217A1 (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015092456A (en) * 2013-10-01 2015-05-14 住友電気工業株式会社 Encapsulated type power storage device, and manufacturing method of the same
WO2015072010A1 (en) * 2013-11-15 2015-05-21 日立オートモティブシステムズ株式会社 Prismatic battery

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015092456A (en) * 2013-10-01 2015-05-14 住友電気工業株式会社 Encapsulated type power storage device, and manufacturing method of the same
WO2015072010A1 (en) * 2013-11-15 2015-05-21 日立オートモティブシステムズ株式会社 Prismatic battery

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