JPH09262689A - Joint welding method - Google Patents
Joint welding methodInfo
- Publication number
- JPH09262689A JPH09262689A JP7501096A JP7501096A JPH09262689A JP H09262689 A JPH09262689 A JP H09262689A JP 7501096 A JP7501096 A JP 7501096A JP 7501096 A JP7501096 A JP 7501096A JP H09262689 A JPH09262689 A JP H09262689A
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- plate
- welding
- joint
- shaped member
- shaped
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は鋼構造物の突合せ継
手、角継手、Ｔ継手、十字継手及びはめ込み継手等の溶
接に適用される溶接方法に関し、特に、継手の前加工及
び組立を低コストで実施することができると共に、継手
強度を向上することができる継手の溶接方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a welding method applied to welding butt joints, corner joints, T joints, cruciform joints, and fitting joints of steel structures. The present invention relates to a method for welding a joint, which can be carried out in the above and can improve the joint strength.
【０００２】[0002]
【従来の技術】図８は従来のＴ継手の開先部を示す正面
図である。図８に示すように、垂直の鋼板１と水平の鋼
板２とは垂直に交差するように正面視でＴ字型に組み立
てられており、鋼板２の先端面２ｂは、鋼板１の表面に
当接している。2. Description of the Related Art FIG. 8 is a front view showing a groove portion of a conventional T-joint. As shown in FIG. 8, the vertical steel plate 1 and the horizontal steel plate 2 are assembled in a T-shape in a front view so as to vertically intersect with each other, and the front end surface 2 b of the steel plate 2 contacts the surface of the steel plate 1. Touching.
【０００３】図８に示すように組み立てられたＴ継手に
おいては、いわゆる隅肉溶接により部分溶込み溶接を実
施するものである。このように、Ｔ継手において、要求
される継手強度が比較的低い場合には、一方の部材（鋼
板２）の先端面２ｂを他方の部材（鋼板１）の表面に沿
うように平坦に切断するのみで、開先を加工することが
できる。In the T joint assembled as shown in FIG. 8, partial penetration welding is carried out by so-called fillet welding. As described above, in the case where the required joint strength is relatively low in the T joint, the tip surface 2b of one member (steel plate 2) is cut flat along the surface of the other member (steel plate 1). A groove can be machined only by using this.
【０００４】しかしながら、このような開先部を有する
Ｔ継手においては、部材（鋼板２）の加工は容易である
が、溶接時において、所望の溶込み深さを確保すること
が困難であるので、高い継手強度を得ることはできな
い。そこで、一般的に、鋼構造物等においては、突合せ
継手、角継手及びＴ継手等を溶接する場合に、良好な溶
込み深さを確保し、所望の継手強度を得るために、少な
くとも一方の部材に傾斜した切欠きを形成した後、継手
を組み立てて溶接している。However, in a T-joint having such a groove portion, although the member (steel plate 2) can be easily processed, it is difficult to secure a desired penetration depth during welding. , High joint strength cannot be obtained. Therefore, generally, in a steel structure or the like, at the time of welding a butt joint, a corner joint, a T joint, etc., in order to secure a good penetration depth and obtain a desired joint strength, at least one of After forming the slanted notch in the member, the joint is assembled and welded.
【０００５】図９は従来のＴ継手の他の開先部の形状を
示す正面図である。図９に示すＴ継手においては、鋼板
４の片端面において、その上面から端面に至るように、
傾斜した切欠き４ａが形成されている。そして、図８に
示す継手と同様に、垂直の鋼板３と水平の鋼板４とが垂
直に交差するように正面視でＴ字型に組み立てられてい
て、その開先端にレ形の開先部５が形成されていると共
に、鋼板４の先端面４ｂが鋼板３の表面に当接してい
る。FIG. 9 is a front view showing the shape of another groove portion of the conventional T-joint. In the T-joint shown in FIG. 9, on one end surface of the steel plate 4, from the upper surface to the end surface,
An inclined notch 4a is formed. Then, similarly to the joint shown in FIG. 8, the vertical steel plate 3 and the horizontal steel plate 4 are assembled in a T-shape in a front view so as to vertically intersect with each other, and the groove-shaped groove portion is formed at the open end thereof. 5 is formed, and the front end surface 4b of the steel plate 4 is in contact with the surface of the steel plate 3.
【０００６】このように、継手の開先端に傾斜した切欠
き４ａが形成されていると、溶接時において深い溶込み
が得られ、これにより、高い継手強度を得ることができ
る。As described above, when the inclined notch 4a is formed at the open end of the joint, deep penetration can be obtained at the time of welding, whereby high joint strength can be obtained.
【０００７】[0007]
【発明が解決しようとする課題】しかしながら、図９に
示すような開先部５を加工する場合、一方の部材（鋼板
４）の端面４ｂを、他方の部材（鋼板３）に沿うように
平坦に切断する工程と、切欠き４ａを形成する工程との
２工程が必要となるという問題点がある。従って、レ形
の開先部５を形成するためには、図８に示すように、単
に部材（鋼板２）の先端面２ｂを他の部材（鋼板１）に
沿うように平坦に切断するのみの場合と比較して、２倍
又はそれ以上の加工コストが必要となる。However, when processing the groove portion 5 as shown in FIG. 9, the end surface 4b of one member (steel plate 4) is flattened along the other member (steel plate 3). There is a problem in that two steps, that is, the step of cutting into two and the step of forming the notch 4a are required. Therefore, in order to form the groove-shaped groove 5, as shown in FIG. 8, the tip surface 2b of the member (steel plate 2) is simply cut flat along the other member (steel plate 1). In comparison with the above case, the processing cost is double or more.
【０００８】更に、傾斜した開先部（傾斜開先部）が形
成された部材を溶接する場合、単層で十分な適正量の余
盛りを得るための溶接条件の設定が比較的困難である。
即ち、ルート部（鋼板４の端面４ｂと鋼板３との接触部
分）において、溶融金属の溶け落ちが発生しない条件で
溶接すると、余盛りが不足することがあり、十分な余盛
りを得るための溶接条件を設定すると、溶融金属の溶け
落ちが発生しやすくなる。Furthermore, when welding a member having an inclined groove portion (inclined groove portion), it is relatively difficult to set welding conditions for obtaining a sufficient amount of a sufficient amount of extra layer in a single layer. .
That is, if welding is performed at the root portion (the contact portion between the end surface 4b of the steel plate 4 and the steel plate 3) under the condition that the molten metal does not burn through, the excess amount may be insufficient, so that a sufficient excess amount may be obtained. When the welding conditions are set, melt-through of molten metal easily occurs.
【０００９】また、図８に示すように、傾斜した開先部
（傾斜開先部）を形成しない場合、一般的に、溶込みを
深くするためには、部材間にルートギャップを設けると
いう方法が適用されている。そこで、均一な適正幅のル
ートギャップを維持するためには、継手の両部材の組立
工程において、ギャップを計測調整しながら仮付け溶接
するか、又は部材間にスペーサを配置する必要がある。Further, as shown in FIG. 8, in the case where an inclined groove portion (inclined groove portion) is not formed, a root gap is generally provided between members in order to deepen the penetration. Has been applied. Therefore, in order to maintain the root gap with a uniform and appropriate width, it is necessary to perform tack welding while measuring and adjusting the gap or to dispose a spacer between the members in the process of assembling both members of the joint.
【００１０】しかしながら、このような方法を使用する
場合、溶接線が直線でない継手においては、均一にギャ
ップを形成することが困難である。また、部分溶込み状
態となったときに、鋼板２の未溶接の先端面２ｂと鋼板
１との接触部分が存在しないか、又は接触部分が少なく
なるので、溶接によって収縮変形が発生し、寸法精度が
低下してしまう。更に、継手部材の組立工程が煩雑にな
り、スペーサ等を使用する場合には、このような継手部
材以外の部材が必要となるため、コストアップとなって
しまう。また、継手形状によっては、適切なルートギャ
ップを維持することは極めて困難となる。However, when such a method is used, it is difficult to form a uniform gap in a joint where the welding line is not straight. Further, when the partial penetration state is reached, there is no contact portion between the unwelded tip surface 2b of the steel sheet 2 and the steel sheet 1 or the contact portion is small, so shrinkage deformation occurs due to welding, and the dimensions The accuracy will be reduced. Further, the process of assembling the joint member becomes complicated, and when a spacer or the like is used, a member other than such a joint member is required, resulting in an increase in cost. Further, depending on the joint shape, it is extremely difficult to maintain an appropriate root gap.
【００１１】本発明はかかる問題点に鑑みてなされたも
のであって、溶接母材の煩雑な組み立て作業が不要であ
り、開先部の形成又は部材の組み立て等に必要なコスト
を上昇させることなく、容易に溶接開先部を加工するこ
とができると共に、良好な溶込み深さを得ることがで
き、これにより、継手強度を高め、優れた寸法精度で溶
接することができる継手の溶接方法を提供することを目
的とする。The present invention has been made in view of the above problems, and does not require complicated assembling work of the welding base material, and increases the cost required for forming the groove portion or assembling the members. The welding method of a joint that can easily process the welding groove portion and can obtain a good penetration depth, thereby increasing the joint strength and performing welding with excellent dimensional accuracy. The purpose is to provide.
【００１２】[0012]
【課題を解決するための手段】本発明に係る継手の溶接
方法は、２つの部材を溶接して接合する継手の溶接方法
において、前記２つの部材の少なくとも一方の部材の開
先端に凹凸面を形成して、前記凹凸面を他方の部材に当
接させて溶接することを特徴とする。A welding method for a joint according to the present invention is a welding method for a joint in which two members are welded and joined to each other, and an uneven surface is formed on an open tip of at least one of the two members. It is formed, and the uneven surface is brought into contact with the other member and welded.
【００１３】この一方の部材は板状部材であり、この板
状部材の端面に前記凹凸面を有することが好ましい。This one member is a plate-shaped member, and it is preferable that the end face of this plate-shaped member has the uneven surface.
【００１４】また、板状部材の端面に前記板状部材に対
して直交する方向に複数本の溝状の凹部を形成し、前記
凹部により凹凸面が形成されていてもよい。更に、この
溝状の凹部は板状部材に直交する方向に対して６０°以
下に傾斜して形成されていることが好ましい。Further, a plurality of groove-shaped recesses may be formed in the end surface of the plate-shaped member in a direction orthogonal to the plate-shaped member, and the recessed and projected surface may be formed by the recesses. Further, it is preferable that the groove-shaped recess is formed so as to be inclined at 60 ° or less with respect to the direction orthogonal to the plate-shaped member.
【００１５】更にまた、前記一方の部材は、前記凹凸面
からこれに隣接する面に至る傾斜した切欠きが形成され
ていてもよい。Furthermore, the one member may be formed with an inclined notch extending from the uneven surface to the surface adjacent thereto.
【００１６】また、前記凹凸面は凹部及び凸部が一定間
隔で交互に形成されているものであって、凹部の空間体
積が凸部の体積の２倍未満のとき、前記板状部材の板厚
をｔ（ｍｍ）とすると、隣接する凸部間の距離を２乃至
２０ｍｍ、凹部の深さを（０．０８×ｔ）乃至（０．６
×ｔ）ｍｍとすることが好ましく、凹部の空間体積が凸
部の体積の２倍以上、凸部の幅が５ｍｍ以下であると
き、凹部の深さを０．５乃至３ｍｍ、隣接する凸部間の
距離を５０ｍｍ以下とすることが好ましい。Further, the concave and convex surface has concave portions and convex portions alternately formed at regular intervals, and when the space volume of the concave portions is less than twice the volume of the convex portions, the plate of the plate-like member is formed. If the thickness is t (mm), the distance between adjacent convex portions is 2 to 20 mm, and the depth of the concave portions is (0.08 × t) to (0.6).
Xt) mm is preferable, and when the space volume of the concave portion is twice or more the volume of the convex portion and the width of the convex portion is 5 mm or less, the depth of the concave portion is 0.5 to 3 mm, and the adjacent convex portions are The distance between them is preferably 50 mm or less.
【００１７】本発明方法においては、２つの部材の少な
くとも一方の部材の開先端に凹凸面を形成し、その凹凸
面を他方の部材に当接させて溶接するので、凹部が局部
的なルートギャップとなり、仮溶接又はスペーサ等によ
りルートギャップを維持する必要が無く、溶接のための
部材の組立が容易になる。また、凹凸面の凸部は熱容量
が小さく、溶接熱により比較的容易に溶融するので、凹
部が有するルートギャップとしての作用により、溶込み
深さを深くすることができると共に、凸部の存在により
溶融金属の溶け落ちを防止することができ、これによ
り、継手強度を向上させることができる。In the method of the present invention, since the uneven surface is formed on the open tip of at least one of the two members and the uneven surface is brought into contact with the other member and welded, the concave portion has a local root gap. Therefore, it is not necessary to maintain the root gap by provisional welding or spacers, which facilitates the assembly of members for welding. Further, since the convex portion of the uneven surface has a small heat capacity and is relatively easily melted by the welding heat, it can deepen the penetration depth by the action as the root gap of the concave portion and the presence of the convex portion. It is possible to prevent the molten metal from being burnt through, and thereby improve the joint strength.
【００１８】更に、凹凸面の形成と部材の切断とを同時
に実施することができるので、低コストで開先部を加工
することができる。Furthermore, since the formation of the uneven surface and the cutting of the member can be performed at the same time, the groove portion can be processed at low cost.
【００１９】更にまた、部分溶込み溶接を実施する場
合、未溶接部分が他方の部材に当接しているので、溶接
収縮を少なくすることができ、これにより、溶接後の寸
法精度を高めることができる。Furthermore, when performing partial penetration welding, since the unwelded portion is in contact with the other member, it is possible to reduce the welding shrinkage, thereby improving the dimensional accuracy after welding. it can.
【００２０】また、本発明方法において、板状部材の端
面に凹凸を形成し、この端面を他方の部材に当接させて
Ｔ継手を組み立てて溶接すると、凹凸面の凹凸の加工及
び継手の組立が容易になり、凹凸面から隣接する面に至
る切欠きを形成すると、溶接時において深い溶込みが得
られる。Further, in the method of the present invention, when unevenness is formed on the end surface of the plate-like member, the end surface is brought into contact with the other member, and a T-joint is assembled and welded, the unevenness of the uneven surface is machined and the joint is assembled. When the notch is formed from the uneven surface to the adjacent surface, deep penetration can be obtained during welding.
【００２１】更に、板状部材の表面から裏面に至る溝状
の凹部を板状部材の端面に形成すると、凹凸面を更に一
層容易に加工することができ、この溝状の凹部を板状部
材に直交する方向に対して傾斜させて形成すると、溶融
金属の溶け落ちを防止する効果が高められる。この傾斜
角度は板状部材に直交する方向に対して６０°を超える
と、溝状の凹部の加工が困難になると共に、溶融金属の
溶け落ちを防止する効果はそれ以上向上しなくなる。従
って、板状部材の表面から裏面に至る溝状の凹部を傾斜
させて形成する場合、その傾斜角度は板状部材に直交す
る方向に対して６０°以下であることが好ましい。Further, if a groove-shaped recess extending from the front surface to the back surface of the plate-shaped member is formed on the end surface of the plate-shaped member, the uneven surface can be processed more easily. When it is formed so as to be inclined with respect to the direction orthogonal to, the effect of preventing the molten metal from burning through is enhanced. If this inclination angle exceeds 60 ° with respect to the direction orthogonal to the plate-shaped member, it becomes difficult to process the groove-shaped recess, and the effect of preventing the molten metal from melting through is no longer improved. Therefore, when the groove-shaped concave portion extending from the front surface to the back surface of the plate-shaped member is formed to be inclined, the inclination angle is preferably 60 ° or less with respect to the direction orthogonal to the plate-shaped member.
【００２２】更にまた、凹部及び凸部が一定間隔で交互
に形成されていて、凹部の空間体積が凸部の体積の２倍
未満である場合、隣接する凸部間の距離が２ｍｍ未満で
あると、加工が煩雑になるので好ましくない。一方、凸
部間の距離が２０ｍｍを超えると、溶け落ちが発生しや
すくなる。Furthermore, when the concave portions and the convex portions are alternately formed at regular intervals and the space volume of the concave portions is less than twice the volume of the convex portions, the distance between the adjacent convex portions is less than 2 mm. If so, processing becomes complicated, which is not preferable. On the other hand, if the distance between the convex portions exceeds 20 mm, burn-through easily occurs.
【００２３】また、凹部の深さが板状部材の板厚ｔ（ｍ
ｍ）に対して（０．０８×ｔ）ｍｍ未満であると、所望
の溶込み深さを得ることができず、凹部の深さが（０．
６×ｔ）ｍｍを超えると、溶融金属の溶け落ちが発生す
る。従って、凹部の空間体積が凸部の体積の２倍未満の
とき、隣接する凸部間の距離を２乃至２０ｍｍ、凹部の
深さを（０．０８×ｔ）乃至（０．６×ｔ）ｍｍとする
ことが好ましい。Further, the depth of the concave portion depends on the plate thickness t (m
If it is less than (0.08 × t) mm with respect to (m), the desired penetration depth cannot be obtained and the depth of the recess is (0.
If it exceeds 6 × t) mm, melt-through of molten metal occurs. Therefore, when the space volume of the concave portion is less than twice the volume of the convex portion, the distance between the adjacent convex portions is 2 to 20 mm, and the depth of the concave portion is (0.08 × t) to (0.6 × t). It is preferably mm.
【００２４】一方、凹部及び凸部が一定間隔で交互に形
成されていて、凹部の空間体積が凸部の体積の２倍以上
であると共に、凸部の幅が５ｍｍ以下である場合、隣接
する凸部間の距離が５０ｍｍを超えると、溶融金属の溶
け落ちが発生しやすくなる。On the other hand, when the concave portions and the convex portions are alternately formed at regular intervals and the space volume of the concave portions is more than twice the volume of the convex portions and the width of the convex portions is 5 mm or less, they are adjacent to each other. If the distance between the protrusions exceeds 50 mm, melt-through of the molten metal is likely to occur.
【００２５】また、凹部の深さが０．５ｍｍ未満である
と、所望の溶込み深さを得ることができず、凹部の深さ
が３ｍｍを超えると、溶融金属の溶け落ちが発生しやす
くなる。従って、凹部の空間体積が凸部の体積の２倍以
上、凸部の幅が５ｍｍ以下であるとき、凹部の深さを
０．５乃至３ｍｍ、凸部間の距離を５０ｍｍ以下とする
ことが好ましい。If the depth of the recess is less than 0.5 mm, the desired penetration depth cannot be obtained, and if the depth of the recess exceeds 3 mm, melt-through of molten metal easily occurs. Become. Therefore, when the space volume of the concave portions is at least twice the volume of the convex portions and the width of the convex portions is 5 mm or less, the depth of the concave portions may be 0.5 to 3 mm and the distance between the convex portions may be 50 mm or less. preferable.
【００２６】[0026]
【発明の実施の形態】以下、本発明の実施例について添
付の図面を参照して具体的に説明する。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.
【００２７】図１（ａ）は本発明の実施例に係る継手の
溶接方法を説明するための継手を示す斜視図であり、
（ｂ）はその平面図、（ｃ）はその正面図である。FIG. 1 (a) is a perspective view showing a joint for explaining a welding method of the joint according to the embodiment of the present invention.
(B) is the top view, (c) is the front view.
【００２８】図１に示すように、板状部材１２の一方の
端面には、板状部材１２の表面から裏面に延びるよう
に、等間隔に複数の溝状の凹部１２ａが形成されてお
り、この凹部１２ａを形成することにより、隣接する凹
部１２ａ間に凸部１２ｂが形成されている。従って、図
１（ｂ）に示すように、板状部材１２の一方の端面にお
いては、凹部１２ａと凸部１２ｂとが交互に配置され、
平面視で波形の凹凸面１２ｃが形成されている。そし
て、垂直の板状部材１１の表面に水平の板状部材１２の
凹凸面１２ｃが当てられ、板状部材１１と板状部材１２
とが垂直に交差するように正面視でＴ字型に組み立てら
れている。As shown in FIG. 1, a plurality of groove-shaped recesses 12a are formed at equal intervals on one end surface of the plate member 12 so as to extend from the front surface to the back surface of the plate member 12, By forming the concave portions 12a, the convex portions 12b are formed between the adjacent concave portions 12a. Therefore, as shown in FIG. 1B, the concave portions 12a and the convex portions 12b are alternately arranged on one end surface of the plate-shaped member 12,
The corrugated uneven surface 12c is formed in a plan view. Then, the uneven surface 12c of the horizontal plate-shaped member 12 is applied to the surface of the vertical plate-shaped member 11, and the plate-shaped member 11 and the plate-shaped member 12 are
It is assembled in a T shape when viewed from the front so that and intersect vertically.
【００２９】このように継手１０を組み立てた後、板状
部材１２の凹凸面１２ｃに沿って溶接する。そうする
と、板状部材１２の凸部１２ｂは熱容量が小さいので、
溶接熱により比較的容易に溶融する。また、凸部１２ｂ
が板状部材１１の表面に接触するか又は近接し、凹部１
２ａが局部的に板状部材１１と１２とのルートギャップ
としての役割を果たすので、深い溶込みを得ることがで
きる。即ち、凹部１２ａと凸部１２ｂとの相互効果によ
り、所望の溶込み深さ及び所望の余盛りを得ることがで
きる。After the joint 10 is assembled in this manner, the plate-shaped member 12 is welded along the uneven surface 12c. Then, since the convex portion 12b of the plate member 12 has a small heat capacity,
Melts relatively easily due to welding heat. Also, the convex portion 12b
Contact or approach the surface of the plate-like member 11,
Since 2a locally serves as a root gap between the plate members 11 and 12, a deep penetration can be obtained. That is, a desired penetration depth and a desired extra depth can be obtained by the mutual effect of the concave portion 12a and the convex portion 12b.
【００３０】また、本実施例においては、板状部材１２
の一方の端面の切断加工と凹部の形成とを同時に実施す
ることができるので、１工程のみで所望の開先を得るこ
とができ、開先の加工コストを低くすることができる。
更に、部材の組立が容易であり、スペーサ等が不要であ
るので、そのためのコストアップを防止することができ
る。Further, in the present embodiment, the plate member 12
Since it is possible to simultaneously cut one end face and form the recess, it is possible to obtain a desired groove in only one step, and it is possible to reduce the processing cost of the groove.
Further, since the members can be easily assembled and the spacer or the like is not necessary, it is possible to prevent the cost increase for that purpose.
【００３１】更にまた、ルート部（板状部材１２の凸部
１２ｂと板状部材１１との接触部分）において、未溶接
部分を極めて小さくし、完全溶込み溶接に近い溶接部を
得ようとする場合においては、凸部１２ｂが存在するこ
とにより、溶融金属の溶け落ちの発生を防止することが
できる。一方、部分溶込み溶接をする場合、凸部１２ｂ
における未溶接部分が板状部材１１に当接しているの
で、溶接による収縮変形が小さくなる。Furthermore, in the root portion (the contact portion between the convex portion 12b of the plate-shaped member 12 and the plate-shaped member 11), the unwelded portion is made extremely small so as to obtain a welded portion close to complete penetration welding. In some cases, the presence of the convex portion 12b can prevent the molten metal from being burned down. On the other hand, when performing partial penetration welding, the convex portion 12b
Since the non-welded portion of the sheet abuts on the plate-like member 11, shrinkage deformation due to welding is reduced.
【００３２】本実施例においては、Ｔ継手の例について
示したが、例えば、突合せ継手、角継手、十字継手及び
はめ込み継手においても同様の効果を得ることができ
る。また、レ形及びＶ形等の傾斜開先部を有する継手に
おいても、両部材の接触面（ルート面）に同様の加工を
施すことができる。Although the example of the T-joint is shown in the present embodiment, the same effect can be obtained in a butt joint, a corner joint, a cross joint and a fitting joint, for example. Further, also in a joint having an inclined groove portion such as a V-shape and a V-shape, the same processing can be performed on the contact surface (root surface) of both members.
【００３３】[0033]
【実施例】以下、本発明に係る溶接方法を使用して得ら
れた溶接継手の実施例についてその比較例と比較して具
体的に説明する。EXAMPLES Examples of welded joints obtained by using the welding method according to the present invention will be specifically described below in comparison with comparative examples.
【００３４】先ず、本発明に係る溶接方法及び従来の溶
接方法によりＴ継手を溶接し、溶込み深さ比較試験を実
施した。First, a T-joint was welded by the welding method according to the present invention and the conventional welding method, and a penetration depth comparison test was carried out.
【００３５】図２は溶込み深さ比較試験に使用したＴ継
手の形状及びサイズを示す正面図である。また、図３
（ａ）は本発明の実施例に係る溶接方法において使用し
た板状部材の形状及びサイズを示す平面図であり、
（ｂ）はその正面図である。FIG. 2 is a front view showing the shape and size of the T-joint used in the penetration depth comparison test. FIG.
(A) is a plan view showing the shape and size of the plate-like member used in the welding method according to the embodiment of the present invention,
(B) is the front view.
【００３６】比較例としては、図２に示すように、板厚
が１４ｍｍの板状部材１３と板厚が１２ｍｍである板状
部材１４とを準備し、垂直に配置された板状部材１３と
水平に配置された板状部材１４とが垂直に交差するよう
に、板状部材１３の表面に板状部材１４の平坦な端面１
４ａを当てて組み立てたＴ継手を使用した。なお、板状
部材１４は、その上面が板状部材１３の端面１３ａから
１２ｍｍの位置になるように配置した。As a comparative example, as shown in FIG. 2, a plate-shaped member 13 having a plate thickness of 14 mm and a plate-shaped member 14 having a plate thickness of 12 mm were prepared, and the plate-shaped member 13 arranged vertically was prepared. The flat end surface 1 of the plate-shaped member 14 is formed on the surface of the plate-shaped member 13 so that the plate-shaped member 14 arranged horizontally intersects vertically.
The T-joint assembled by applying 4a was used. The plate-shaped member 14 was arranged so that its upper surface was located 12 mm from the end surface 13 a of the plate-shaped member 13.
【００３７】また、実施例としては、板状部材１４の代
わりに波形の凹凸面１５ｃを有する板状部材１５を使用
した。即ち、図３に示すように、板状部材１５は、ガス
切断によって、一方の端面に、板状部材１５の表面から
裏面に延びるように、等間隔に複数本の溝状の凹部１５
ａ及び凸部１５ｂを交互に形成したものであり、板状部
材１４の表面に板状部材１５の凸部１５ｂを当接させて
継手を組み立てた。本実施例においては、板状部材１５
の板厚を１２ｍｍとし、隣接する凸部１５ｂの間隔を５
ｍｍ、各凹部１５ａの深さを２．５ｍｍとした。As an example, instead of the plate member 14, a plate member 15 having a corrugated uneven surface 15c was used. That is, as shown in FIG. 3, the plate-shaped member 15 is provided with a plurality of groove-shaped recesses 15 at equal intervals on one end face by gas cutting so as to extend from the front surface to the back surface of the plate-shaped member 15.
a and convex portions 15b are alternately formed, and the joint is assembled by bringing the convex portions 15b of the plate member 15 into contact with the surface of the plate member 14. In this embodiment, the plate member 15
The thickness of 12 mm, and the distance between adjacent protrusions 15b is 5
mm, and the depth of each recess 15a was 2.5 mm.
【００３８】このような２種類のＴ継手に対して同一の
溶接条件によって溶接し、溶接後に、溶接部から断面マ
クロを採取し、未溶接部分のルート厚さを測定すること
により、溶込み深さを評価した。但し、溶接は直径が
１．４ｍｍのワイヤを使用し、自動ＣＯ2 溶接とした。
溶接条件を下記表１に示し、評価結果を下記表２に示
す。Welding under the same welding conditions for such two types of T joints, after welding, a macro section is taken from the welded portion, and the root thickness of the unwelded portion is measured to determine the penetration depth. Was evaluated. However, welding was performed using a wire having a diameter of 1.4 mm and automatic CO 2 welding.
The welding conditions are shown in Table 1 below, and the evaluation results are shown in Table 2 below.
【００３９】[0039]
【表１】 [Table 1]
【００４０】[0040]
【表２】 [Table 2]
【００４１】上記表１及び２に示すように、本実施例方
法によって溶接すると、いずれの溶接条件においても、
比較例と比較して、未溶接部分のルート長さが減少し
た。即ち、溶込み深さが増大し、良好な溶接継手を得る
ことができた。As shown in Tables 1 and 2 above, when welding is performed by the method of this embodiment, under any welding condition,
Compared with the comparative example, the root length of the unwelded part was reduced. That is, the penetration depth was increased and a good welded joint could be obtained.
【００４２】次いで、本発明に係る溶接方法及び従来の
溶接方法によりＴ継手を溶接し、曲げ疲労試験を実施し
た。この曲げ疲労試験においては、図３に示す板状部材
１５を適用した継手を実施例Ｎｏ．７とし、図２に示す
形状及びサイズの継手を比較例Ｎｏ．８、傾斜開先部を
有するＴ継手を比較例Ｎｏ．９とした。Next, the T-joint was welded by the welding method according to the present invention and the conventional welding method, and a bending fatigue test was carried out. In this bending fatigue test, a joint to which the plate member 15 shown in FIG. 7, and the joint having the shape and size shown in FIG. Comparative Example No. 8 is a T-joint having an inclined groove. It was set to 9.
【００４３】図４は曲げ疲労試験に使用した傾斜開先部
を有するＴ継手の形状及びサイズを示す正面図である。
図４に示すように、板状部材１７は一方の端面におい
て、その上面から端面に至るように、傾斜した切欠き１
７ａを形成した。そして、板厚が１４ｍｍである板状部
材１６を準備し、板状部材１６と板状部材１７とが垂直
に交差するように、切欠き１７ａにより形成された板状
部材１７の端面１７ｂを、板状部材１６の表面に当てる
ように正面視でＴ字型に組み立てた。従って、板状部材
１６と板状部材１７との間の切欠き１７ａの部分は、レ
形の傾斜開先部１８となっている。FIG. 4 is a front view showing the shape and size of a T-joint having an inclined groove used in a bending fatigue test.
As shown in FIG. 4, the plate-shaped member 17 has a notch 1 that is inclined at one end face so as to reach from the upper surface to the end face.
7a was formed. Then, the plate member 16 having a plate thickness of 14 mm is prepared, and the end surface 17b of the plate member 17 formed by the notch 17a is formed so that the plate member 16 and the plate member 17 intersect vertically. It was assembled in a T-shape in a front view so as to hit the surface of the plate member 16. Therefore, the portion of the notch 17 a between the plate-shaped member 16 and the plate-shaped member 17 is a rectangular inclined groove portion 18.
【００４４】この曲げ疲労試験において使用した図４に
示す継手においては、レ形の傾斜開先部１８の開先角度
を４５°とし、板状部材１７の板厚を１２ｍｍ、先端面
１７ｂの板厚方向の幅を３ｍｍとした。In the joint shown in FIG. 4 used in this bending fatigue test, the groove angle of the R-shaped inclined groove portion 18 was set to 45 °, the plate thickness of the plate member 17 was set to 12 mm, and the plate of the tip surface 17b was set to 12 mm. The width in the thickness direction was 3 mm.
【００４５】このような３種類の継手を溶接して、曲げ
疲労試験用の試験片とし、疲労限を比較した。但し、溶
接条件として、実施例Ｎｏ．７及び比較例Ｎｏ．８につ
いては、上記表１に示す溶接条件記号Ｃの条件を使用し
て溶接し、比較例Ｎｏ．９については、溶融金属の溶け
落ちを考慮して２層仕上げとした。比較例Ｎｏ．９の継
手に対する溶接時の溶接条件を下記表３に示す。Welded these three kinds of joints to make a test piece for bending fatigue test, and compared the fatigue limits. However, as welding conditions, Example No. 7 and Comparative Example No. For No. 8, Comparative Example No. 8 was welded using the condition of the welding condition symbol C shown in Table 1 above. For No. 9, a two-layer finish was used in consideration of burn-through of the molten metal. Comparative Example No. The welding conditions at the time of welding the joint of No. 9 are shown in Table 3 below.
【００４６】[0046]
【表３】 [Table 3]
【００４７】図５（ａ）は曲げ疲労試験用の試験片の形
状及びサイズを示す側面図であり、（ｂ）はその正面図
である。図５においては、図２及び４の板状部材１３及
び１６を部材Ｄとし、板状部材１４、１５及び１７を部
材Ｅとして説明する。FIG. 5 (a) is a side view showing the shape and size of a test piece for a bending fatigue test, and FIG. 5 (b) is a front view thereof. In FIG. 5, the plate-shaped members 13 and 16 of FIGS. 2 and 4 are described as a member D, and the plate-shaped members 14, 15 and 17 are described as a member E.
【００４８】前述の如く、部材Ｄと部材Ｅとは垂直に交
差するようにＴ字型に組み立てられて溶接されており、
開先部には溶接金属２０が形成されている。部材Ｄ及び
Ｅは、その長手方向の長さを１２０ｍｍ、幅を５０ｍｍ
とした。また、部材Ｄには、４カ所に、これを貫通する
固定孔１９が設けられており、これらの固定孔１９に固
定ジグ（図示せず）を挿入し、この固定ジグを固定器
（図示せず）に締着することにより部材Ｄが固定される
ようになっている。更に、部材Ｅには、部材Ｄ側の端面
から２０ｍｍ離れた位置において、板幅中央の表面及び
裏面に、歪みゲージ２３が貼付されている。As described above, the member D and the member E are assembled in a T shape so as to intersect with each other vertically and welded,
Weld metal 20 is formed in the groove. Members D and E have a longitudinal length of 120 mm and a width of 50 mm.
And Further, the member D is provided with fixing holes 19 penetrating therethrough at four places, and fixing jigs (not shown) are inserted into these fixing holes 19, and the fixing jigs are fixed by a fixing device (not shown). The member D is fixed by tightening it. Further, the member E has a strain gauge 23 attached to the front surface and the back surface at the center of the plate width at a position 20 mm away from the end surface on the member D side.
【００４９】このように作製された試験片において、部
材Ｄを固定した後、部材Ｅの溶接されていない端部２５
に対して、部材Ｄに平行方向に繰り返し応力を印加し
て、歪みゲージ２３にかかる歪から繰り返し曲げ応力を
設定し、応力振幅１６ｋｇｆ／ｍｍ2 における破断繰り
返し数を比較した。この曲げ疲労試験の評価結果を下記
表４に示す。In the thus-prepared test piece, after fixing the member D, the unwelded end 25 of the member E
On the other hand, a repetitive stress was applied to the member D in the parallel direction, a repetitive bending stress was set based on the strain applied to the strain gauge 23, and the number of repetitive fractures at a stress amplitude of 16 kgf / mm 2 was compared. The evaluation results of this bending fatigue test are shown in Table 4 below.
【００５０】[0050]
【表４】 [Table 4]
【００５１】上記表４に示すように、実施例Ｎｏ．７は
比較例と比較して、破断繰り返し数が増加した。即ち、
本発明方法により溶接することによって、溶接継手の曲
げ疲労強度を高めることができる。As shown in Table 4 above, Example No. In No. 7, the number of repeated breaks increased as compared with the comparative example. That is,
By welding with the method of the present invention, the bending fatigue strength of the welded joint can be increased.
【００５２】次いで、軟鋼製の２枚の板状部材を準備
し、一方の板状部材の端面に種々の幅及び高さを有する
凹凸面を形成した後、この凹凸面を他方の板状部材の端
面に当てて継手を組み立て、この突合せ継手を溶接して
ビードの外観及び溶込み状況を評価した。但し、凹凸面
においては、凹部の空間体積が凸部の体積の２倍未満と
なるように形成した。また、板状部材は１２ｍｍと２５
ｍｍの２種の板厚のものを使用し、板厚が１２ｍｍの板
状部材についてはＭＡＧ溶接、板厚が２５ｍｍの板状部
材についてはサブマージアーク溶接により溶接した。Next, two plate-shaped members made of mild steel are prepared, and an uneven surface having various widths and heights is formed on the end surface of one plate-shaped member, and then this uneven surface is used for the other plate-shaped member. The joint was assembled by contacting the end face of No. 1 and the butt joint was welded to evaluate the appearance and penetration of the bead. However, on the uneven surface, the space volume of the concave portion was formed to be less than twice the volume of the convex portion. In addition, the plate-shaped members are 12 mm and 25
The two plate thicknesses of 2 mm were used. The plate member having a plate thickness of 12 mm was welded by MAG welding, and the plate member having a plate thickness of 25 mm was welded by submerged arc welding.
【００５３】このときの溶接条件を下記表５に示し、板
厚が１２ｍｍの板状部材におけるビードの外観及び溶込
み形状の評価結果を下記表６、板厚が２５ｍｍの板状部
材におけるビードの外観及び溶込み形状の評価結果を下
記表７に示す。なお、下記表６及び７において、○（合
格）は平坦な開先の突合せ溶接の溶込み深さと比較し
て、板厚の１０％以上溶込み深さが増大すると共に、表
面にアンダーフィルが発生せず、溶融金属の溶け落ちが
発生しなかったものである。また、△は溶接の位置によ
って不合格の部分があったもの、×は溶込み深さが合格
の基準を満足しなかったもの、××は溶融金属の溶け落
ちが発生したものを示し、−は凹凸面を加工するための
工程が煩雑になるため、実施しなかったことを示す。The welding conditions at this time are shown in Table 5 below. The appearance of the bead in the plate-shaped member having a plate thickness of 12 mm and the evaluation results of the penetration shape are shown in Table 6 below and the results of the bead in the plate-shaped member having a plate thickness of 25 mm are shown. The evaluation results of the appearance and the penetration shape are shown in Table 7 below. In Tables 6 and 7 below, ◯ (pass) indicates that the penetration depth is increased by 10% or more of the plate thickness and the underfill is formed on the surface as compared with the penetration depth of the butt welding with a flat groove. It did not occur, and melt-through of the molten metal did not occur. Further, △ indicates that there was a rejected part depending on the welding position, × indicates that the penetration depth did not satisfy the acceptance criteria, and XX indicates that burn-through of the molten metal occurred, − Indicates that the process for processing the uneven surface was complicated, and therefore was not performed.
【００５４】[0054]
【表５】 [Table 5]
【００５５】[0055]
【表６】 [Table 6]
【００５６】[0056]
【表７】 [Table 7]
【００５７】上記表６に示すように、板状部材の板厚が
１２ｍｍの場合、凹部の深さが０．５ｍｍ以上であると
共に、ピッチが２ｍｍ以上であると、溶込み深さが増大
し、凹部の深さが１０ｍｍ以上になると、溶融金属の溶
け落ちが発生した。As shown in Table 6 above, when the plate member has a plate thickness of 12 mm and the recesses have a depth of 0.5 mm or more and the pitch is 2 mm or more, the penetration depth increases. When the depth of the recesses was 10 mm or more, the molten metal melted down.
【００５８】一方、上記表７に示すように、板状部材の
板厚が２５ｍｍの場合、凹部の深さが１５ｍｍの範囲ま
で良好な溶接継手を得ることができるピッチが存在し
た。また、ピッチが３０ｍｍ以上になると、溶接線方向
において溶け込み深さが大きく変動した。On the other hand, as shown in Table 7 above, when the plate thickness of the plate member was 25 mm, there was a pitch at which a good welded joint could be obtained up to a depth of the recess of 15 mm. Further, when the pitch was 30 mm or more, the penetration depth varied greatly in the welding line direction.
【００５９】これらの結果より、良好な溶接継手を得る
ための凹部の深さは板厚に依存し、凹凸面における凹部
の深さが部材の板厚の６０％までであると、所望の溶込
み深さが得られると共に、溶融金属の溶け落ちを防止す
ることができる。From these results, the depth of the recess for obtaining a good welded joint depends on the plate thickness, and if the depth of the recess on the uneven surface is up to 60% of the plate thickness of the member, the desired melting is obtained. The penetration depth can be obtained, and the molten metal can be prevented from passing through.
【００６０】更に、凹凸面の形状を変化させた板状部材
を準備し、この凹凸面を他の板状部材に当接させて継手
を組み立て、この突合せ継手を溶接することによって、
ビードの外観及び溶込み状況を評価した。なお、凹凸面
を形成する板状部材としては１２ｍｍと２５ｍｍの２種
の板厚のものを準備し、板厚が１２ｍｍの板状部材につ
いてはＭＡＧ溶接、板厚が２５ｍｍの板状部材について
はサブマージアーク溶接を適用し、上記表５に示す溶接
条件に準じて溶接した。Further, by preparing a plate-shaped member in which the shape of the uneven surface is changed, the uneven surface is brought into contact with another plate-shaped member to assemble a joint, and this butt joint is welded.
The appearance and penetration of the beads were evaluated. As the plate-like member forming the uneven surface, two types of plate thicknesses of 12 mm and 25 mm are prepared. For the plate-like member having a plate thickness of 12 mm, MAG welding, and for the plate-like member having a plate thickness of 25 mm, Submerged arc welding was applied and welding was performed according to the welding conditions shown in Table 5 above.
【００６１】図６（ａ）は本実施例において使用した板
状部材の形状を示す平面図であり、（ｂ）はその正面図
である。図６に示すように、板状部材２１の端面には板
状部材２１の表面から裏面に至る凸部２１ｂが等間隔に
形成されていて、隣接する凸部２１ｂ間に幅広の凹部２
１ａが形成されている。FIG. 6A is a plan view showing the shape of the plate member used in this embodiment, and FIG. 6B is a front view thereof. As shown in FIG. 6, convex portions 21b extending from the front surface to the rear surface of the plate-shaped member 21 are formed at equal intervals on the end surface of the plate-shaped member 21, and the wide concave portions 2 are formed between the adjacent convex portions 21b.
1a is formed.
【００６２】図６に示すような形状の凹凸面を有する板
状部材２１を使用した場合、凹部２１ａの深さＤが０．
５乃至３ｍｍであるとき、凸部の幅Ｗを５ｍｍ以下に設
定すると、隣接する凸部間の距離Ｐが５０ｍｍ程度であ
っても、ビードの外観及び溶込み状況の評価結果が合格
となった。When the plate-like member 21 having an uneven surface having a shape as shown in FIG. 6 is used, the depth D of the recess 21a is 0.
When the width W of the convex portion is set to 5 mm or less when the distance is 5 to 3 mm, the appearance result of the bead and the penetration state are acceptable even if the distance P between the adjacent convex portions is about 50 mm. .
【００６３】図７は本実施例において使用した板状部材
の他の形状を示す斜視図である。図７に示すように、板
状部材２２は、その端面に板状部材２２の上面から裏面
に延びるように、等間隔に複数本の溝状の凹部２２ａが
形成されており、この凹部２２ａを形成することによ
り、隣接する凹部２２ａ間に凸部２２ｂが形成されてい
る。従って、板状部材２２の端面においては、凹部２２
ａと凸部２２ｂとが交互に配置されて波形となっている
が、図３に示す板状部材１５と異なり、凹部２２ａ及び
凸部２２ｂは板状部材２２に直交する方向に対して傾斜
して形成されている。FIG. 7 is a perspective view showing another shape of the plate member used in this embodiment. As shown in FIG. 7, the plate-shaped member 22 is formed with a plurality of groove-shaped recesses 22a at equal intervals on its end face so as to extend from the upper surface to the back surface of the plate-shaped member 22. By forming, the convex portions 22b are formed between the adjacent concave portions 22a. Therefore, in the end face of the plate member 22, the recess 22
Although a and convex portions 22b are alternately arranged to form a waveform, unlike the plate member 15 shown in FIG. 3, the concave portions 22a and the convex portions 22b are inclined with respect to the direction orthogonal to the plate member 22. Is formed.
【００６４】この傾斜した凹部２２ａの傾斜角度を２０
乃至７０°の範囲で変化させて種々の溶接電流で溶接し
た結果、従来の平坦な開先部を溶接した場合と比較し
て、深い溶込みを得ることができた。また、本実施例は
溝状の凹部２２ａを板状部材に直交する方向に形成した
場合（傾斜角０°）と比較して、溶接電流を高くして
も、溶融金属の溶け落ちが発生しにくくなった。The inclination angle of the inclined concave portion 22a is set to 20.
As a result of welding with various welding currents while changing the angle in the range of 70 ° to 70 °, a deeper penetration could be obtained as compared with the case of welding a conventional flat groove. Further, in the present embodiment, as compared with the case where the groove-shaped concave portion 22a is formed in the direction orthogonal to the plate-shaped member (inclination angle 0 °), even if the welding current is increased, melt-through of the molten metal occurs. It became difficult.
【００６５】従って、このような形状の凹凸面を有する
板状部材２２は、完全溶込みに近い溶込みが要求される
継手に対して有効である。但し、溝状の凹部２２ａの傾
斜角が６０°を超えると、凹凸面の加工が困難になると
共に、溶融金属の溶け落ちを防止する効果は向上しなく
なる。Therefore, the plate-like member 22 having the uneven surface having such a shape is effective for a joint which requires a near-complete penetration. However, when the inclination angle of the groove-shaped concave portion 22a exceeds 60 °, it becomes difficult to process the uneven surface, and the effect of preventing the molten metal from melting through is not improved.
【００６６】[0066]
【発明の効果】以上詳述したように、本発明によれば、
継手の少なくとも一方の部材の開先端に凹凸面を形成し
ているので、傾斜開先を形成することなく深い溶込みで
継手強度が高い溶接継手を得ることができると共に、溶
融金属の溶け落ちを防止することができ、これにより、
容易に溶接のための加工及び組立を低コストで実施する
ことができる。また、凸部が他方の部材に当接している
ので、部分溶込み溶接の場合でも溶接収縮を防止するこ
とができ、溶接後の寸法精度を高めることができる。更
に、この凹凸面を板状部材の端面に形成し、板状部材の
表面から裏面に至るように溝状の凹部を形成すると、更
に一層加工及び組立が容易になり、凹凸面における凹部
の深さ及び凸部間の距離を適切に規制することにより、
更に一層良好な溶接継手を得ることができると共に、継
手強度を向上させることができる。As described in detail above, according to the present invention,
Since the concavo-convex surface is formed at the open tip of at least one member of the joint, it is possible to obtain a welded joint with high joint strength by deep penetration without forming an inclined groove and to prevent melted metal from eroding. Can be prevented by this
Processing and assembly for welding can be easily performed at low cost. Further, since the convex portion is in contact with the other member, it is possible to prevent welding shrinkage even in the case of partial penetration welding, and it is possible to improve dimensional accuracy after welding. Furthermore, by forming this concave-convex surface on the end face of the plate-shaped member and forming a groove-shaped concave portion extending from the front surface to the back surface of the plate-shaped member, processing and assembly are further facilitated, and the depth of the concave portion on the concave-convex surface is increased. By properly controlling the distance between the protrusion and the convex portion,
It is possible to obtain a better welded joint and to improve the joint strength.
【図１】（ａ）は本発明の実施例に係る継手の溶接方法
を説明するための継手を示す斜視図であり、（ｂ）はそ
の平面図、（ｃ）はその正面図である。1A is a perspective view showing a joint for explaining a welding method of a joint according to an embodiment of the present invention, FIG. 1B is a plan view thereof, and FIG. 1C is a front view thereof.
【図２】溶込み深さ比較試験に使用したＴ継手の形状及
びサイズを示す正面図である。FIG. 2 is a front view showing the shape and size of a T-joint used in a penetration depth comparison test.
【図３】（ａ）は本発明の実施例に係る溶接方法におい
て使用した板状部材の形状及びサイズを示す平面図であ
り、（ｂ）はその正面図である。3A is a plan view showing the shape and size of a plate-shaped member used in the welding method according to the embodiment of the present invention, and FIG. 3B is a front view thereof.
【図４】曲げ疲労試験に使用した傾斜開先部を有するＴ
継手の形状及びサイズを示す正面図である。FIG. 4 is a diagram showing a T having an inclined groove used in a bending fatigue test.
It is a front view which shows the shape and size of a joint.
【図５】（ａ）は曲げ疲労試験用の試験片の形状及びサ
イズを示す側面図であり、（ｂ）はその正面図である。5A is a side view showing the shape and size of a test piece for bending fatigue test, and FIG. 5B is a front view thereof.
【図６】（ａ）は本実施例において使用した板状部材の
形状を示す平面図であり、（ｂ）はその正面図である。6A is a plan view showing the shape of a plate-like member used in this embodiment, and FIG. 6B is a front view thereof.
【図７】本実施例において使用した板状部材の他の形状
を示す斜視図である。FIG. 7 is a perspective view showing another shape of the plate member used in this embodiment.
【図８】従来のＴ継手の開先形状を示す正面図である。FIG. 8 is a front view showing a groove shape of a conventional T-joint.
【図９】従来のＴ継手の他の開先形状を示す正面図であ
る。FIG. 9 is a front view showing another groove shape of the conventional T-joint.
１、２、３、４；鋼板 ４ａ；切欠き ５、１８；開先部 １０；継手 １１、１２、１３、１４、１５、１６、１７、２１、２
２；板状部材 １２ａ、１５ａ、２１ａ、２２ａ；凹部 １２ｂ、１５ｂ、２１ｂ、２２ｂ；凸部 １９；固定孔 ２０；溶接金属 ２３；歪みゲージ1, 2, 3, 4; Steel plate 4a; Notch 5, 18; Groove portion 10; Joint 11, 12, 13, 14, 15, 16, 17, 21, 2
2; plate-shaped members 12a, 15a, 21a, 22a; concave portions 12b, 15b, 21b, 22b; convex portion 19; fixing hole 20; weld metal 23; strain gauge
Claims (7)
接方法において、前記２つの部材の少なくとも一方の部
材の開先端に凹凸面を形成して、前記凹凸面を他方の部
材に当接させて溶接することを特徴とする継手の溶接方
法。1. A welding method of a joint for welding and joining two members, wherein an uneven surface is formed at an open tip of at least one member of the two members, and the uneven surface is brought into contact with the other member. A method for welding a joint, characterized in that the welding is performed.
板状部材の端面に前記凹凸面を有することを特徴とする
請求項１に記載の継手の溶接方法。2. The method of welding a joint according to claim 1, wherein the one member is a plate-shaped member, and the end surface of the plate-shaped member has the uneven surface.
して直交する方向に複数本の溝状の凹部を形成し、前記
凹部により凹凸面が形成されていることを特徴とする請
求項２に記載の継手の溶接方法。3. An end surface of the plate-shaped member is formed with a plurality of groove-shaped recesses in a direction orthogonal to the plate-shaped member, and the recesses and projections form an uneven surface. Item 3. A method for welding a joint according to Item 2.
直交する方向に対して６０°以下に傾斜した複数本の溝
状の凹部を形成し、前記凹部により凹凸面が形成されて
いることを特徴とする請求項２に記載の継手の溶接方
法。4. A plurality of groove-shaped concave portions inclined at 60 ° or less with respect to a direction orthogonal to the plate-shaped member are formed on an end surface of the plate-shaped member, and the concave-convex surface is formed by the concave portions. The welding method of the joint according to claim 2, wherein
に隣接する面に至る傾斜した切欠きが形成されているこ
とを特徴とする請求項１乃至４のいずれか１項に記載の
継手の溶接方法。5. The joint according to claim 1, wherein the one member is formed with an inclined notch extending from the uneven surface to a surface adjacent to the uneven surface. Welding method.
交互に形成されているものであって、凹部の空間体積が
凸部の体積の２倍未満のとき、前記板状部材の板厚をｔ
（ｍｍ）とすると、隣接する凸部間の距離を２乃至２０
ｍｍ、凹部の深さを（０．０８×ｔ）乃至（０．６×
ｔ）ｍｍとすることを特徴とする請求項３又は４に記載
の継手の溶接方法。6. The concave-convex surface has concave portions and convex portions alternately formed at regular intervals, and when the space volume of the concave portions is less than twice the volume of the convex portions, the plate of the plate-shaped member is formed. Thickness is t
(Mm), the distance between adjacent protrusions is 2 to 20.
mm, the depth of the recess is (0.08 × t) to (0.6 ×
t) mm is set, The welding method of the joint of Claim 3 or 4 characterized by the above-mentioned.
交互に形成されているものであって、凹部の空間体積が
凸部の体積の２倍以上、凸部の幅が５ｍｍ以下であると
き、凹部の深さを０．５乃至３ｍｍ、凸部間の距離を５
０ｍｍ以下とすることを特徴とする請求項３又は４に記
載の継手の溶接方法。7. The concave-convex surface has concave portions and convex portions that are alternately formed at regular intervals, and the space volume of the concave portions is at least twice the volume of the convex portions and the width of the convex portions is 5 mm or less. In some cases, the depth of the concave portions is 0.5 to 3 mm, and the distance between the convex portions is 5 mm.
It is 0 mm or less, The welding method of the joint of Claim 3 or 4 characterized by the above-mentioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07501096A JP3606294B2 (en) | 1996-03-28 | 1996-03-28 | Welding method for joints |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP07501096A JP3606294B2 (en) | 1996-03-28 | 1996-03-28 | Welding method for joints |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09262689A true JPH09262689A (en) | 1997-10-07 |
| JP3606294B2 JP3606294B2 (en) | 2005-01-05 |
Family
ID=13563800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP07501096A Expired - Fee Related JP3606294B2 (en) | 1996-03-28 | 1996-03-28 | Welding method for joints |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3606294B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015025317A (en) * | 2013-07-29 | 2015-02-05 | 山下 三男 | Stainless steel grating |
| JP2019128036A (en) * | 2018-01-25 | 2019-08-01 | 株式会社不二工機 | Flow-control valve |
| KR20200046683A (en) * | 2018-10-25 | 2020-05-07 | 대우조선해양 주식회사 | Method for producing marine inclined block |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722940B (en) * | 2015-04-01 | 2017-07-21 | 上海汽车变速器有限公司 | The optimization welding method and structure of gear and conjunction gear |
-
1996
- 1996-03-28 JP JP07501096A patent/JP3606294B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015025317A (en) * | 2013-07-29 | 2015-02-05 | 山下 三男 | Stainless steel grating |
| JP2019128036A (en) * | 2018-01-25 | 2019-08-01 | 株式会社不二工機 | Flow-control valve |
| KR20200046683A (en) * | 2018-10-25 | 2020-05-07 | 대우조선해양 주식회사 | Method for producing marine inclined block |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3606294B2 (en) | 2005-01-05 |
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