JP2002035964A - Friction stir welding method and tool for lap joint - Google Patents
Friction stir welding method and tool for lap jointInfo
- Publication number
- JP2002035964A JP2002035964A JP2001150245A JP2001150245A JP2002035964A JP 2002035964 A JP2002035964 A JP 2002035964A JP 2001150245 A JP2001150245 A JP 2001150245A JP 2001150245 A JP2001150245 A JP 2001150245A JP 2002035964 A JP2002035964 A JP 2002035964A
- Authority
- JP
- Japan
- Prior art keywords
- stir welding
- tool
- friction stir
- lap joint
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は器物、蓋物又は板材
同士等の重ね継手の摩擦撹拌接合方法及びそれに使用さ
れる摩擦撹拌接合用工具に関し、特に圧力容器、燃料タ
ンク、鉄道車両又は自動車等の重ね継手の摩擦撹拌接合
方法及びそれに使用される摩擦撹拌接合用工具に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for friction stir welding of lap joints such as articles, lids and plate materials, and a tool for friction stir welding used therefor, and more particularly to a pressure vessel, a fuel tank, a railway vehicle or an automobile. The present invention relates to a friction stir welding method for a lap joint and a friction stir welding tool used for the method.
【０００２】[0002]
【従来の技術】従来、器物、蓋物又は板材同士等の重ね
継手を作製する場合には、複数の板材を貫通するような
形となるアーク溶接若しくはレーザ溶接等の溶融溶接又
は抵抗シーム溶接等が使用されている。しかし、これら
の材料の溶融を伴う接合方法は、溶接金属部にブローホ
ール又は割れ等の欠陥が生じやすいという欠点がある。
また、板材間の界面形状に継手の品質が左右されること
が多い。更に、これらの接合方法は気密性又は液密性等
の点で不安が大きい。2. Description of the Related Art Conventionally, when a lap joint such as a vessel, a lid, or a sheet material is produced, fusion welding such as arc welding or laser welding or resistance seam welding or the like, which penetrates a plurality of sheet materials. It is used. However, the joining method involving melting of these materials has a disadvantage that defects such as blowholes or cracks are apt to occur in the weld metal portion.
In addition, the quality of the joint often depends on the shape of the interface between the plate materials. Furthermore, these joining methods have great anxiety in terms of airtightness or liquid tightness.
【０００３】これに対して、重ね継手に素材を溶融しな
い摩擦撹拌接合（ＦＳＷ）を適用することにより、安定
した性能を持つ継手を作製することが可能となる。図４
（ａ）は従来の摩擦撹拌接合工具により接合された突合
せ継手を示す模式図、（ｂ）は同じく下板の板厚が上板
の板厚よりも厚い重ね継手を示す模式図、（ｃ）は上板
及び下板の板厚が等しい重ね継手を示す模式図、（ｄ）
は上板の板厚が下板の板厚よりも厚い重ね継手を示す模
式図である。On the other hand, by applying friction stir welding (FSW) that does not melt the material to the lap joint, it is possible to manufacture a joint having stable performance. FIG.
(A) is a schematic diagram showing a butt joint joined by a conventional friction stir welding tool, (b) is a schematic diagram showing a lap joint in which the lower plate is thicker than the upper plate, and (c). Is a schematic view showing a lap joint in which the upper plate and the lower plate have the same plate thickness, (d)
FIG. 4 is a schematic view showing a lap joint in which the thickness of the upper plate is larger than the thickness of the lower plate.
【０００４】この摩擦撹拌接合に使用される摩擦撹拌接
合用工具（以下、ツールという）２０は、円柱状の基部
１０と、この基部１０の端面の中心に形成された円筒状
のピン部１５とからなる。また、ピン部１５が形成され
ている基部１０の面の縁部をショルダ部１３という。こ
のツール２０を回転させつつ、板材１に接触させ、ツー
ル２０と板材１との間の摩擦熱により板材１、２を加熱
して軟化させ、ツール２０を２枚の板材１、２に向けて
押圧することにより、ツール２０を板材１、２中に進入
させる。そして、ツール２０を回転させつつ所定の溶接
線に沿って移動させる。これにより、板材１及び２は摩
擦撹拌接合される。突合せ継手又は重ね継手を形成す
る。[0004] A friction stir welding tool (hereinafter, referred to as a tool) 20 used for the friction stir welding includes a cylindrical base 10 and a cylindrical pin 15 formed at the center of an end face of the base 10. Consists of The edge of the surface of the base 10 on which the pin 15 is formed is referred to as a shoulder 13. The tool 20 is rotated and brought into contact with the plate 1, and the plates 1 and 2 are heated and softened by frictional heat between the tool 20 and the plate 1, and the tool 20 is directed toward the two plates 1 and 2. The pressing causes the tool 20 to enter the plate materials 1 and 2. Then, the tool 20 is moved along a predetermined welding line while rotating. Thereby, the plate materials 1 and 2 are subjected to friction stir welding. Form a butt or lap joint.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、摩擦撹
拌接合方法により突合せ継手又は重ね継手を接合した場
合でも、ツールのピン部１５の形状が円筒に近い形状で
あるため、図４（ａ）乃至（ｄ）に示すように、接合撹
拌部３はピン部１５の圧入方向に対して板材１、２の幅
が狭くなるような断面形状となる。即ち、板材１、２の
幅方向の断面形状は下底が短辺になる台形状となる。However, even when the butt joint or the lap joint is joined by the friction stir welding method, the shape of the pin portion 15 of the tool is a shape close to a cylinder, so that FIGS. As shown in d), the joining and stirring unit 3 has a cross-sectional shape in which the width of the plate materials 1 and 2 becomes narrower in the press-fit direction of the pin unit 15. That is, the cross-sectional shape of the plate materials 1 and 2 in the width direction has a trapezoidal shape in which the lower base has a shorter side.
【０００６】このため、重ね継手において、板材１、２
の板厚差が大きく板材１、２の界面４が全接合厚に対し
てかなり下側に位置する場合、即ち、図４（ｄ）に示す
ように、上側の板材１の板厚が下側の板材２の板厚より
も厚い場合に、図４（ｂ）に示す重ね継手と比較して接
合界面が著しく狭くなる虞がある。このため、重ね継手
の強度を保持することができなくなる虞がある。For this reason, in the lap joint, the plate materials 1, 2
Is large and the interface 4 between the plate materials 1 and 2 is located considerably lower than the total bonding thickness, that is, as shown in FIG. In the case where the thickness of the plate material 2 is larger than that of the lap joint shown in FIG. For this reason, there is a possibility that the strength of the lap joint cannot be maintained.
【０００７】本発明はかかる問題点に鑑みてなされたも
のであって、板材の界面において十分な撹拌接合領域を
得ることができ、継手強度を高くすることができる重ね
継手の溶接撹拌接合方法及び摩擦撹拌接合用工具を提供
することを目的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a method for welding and agitating a lap joint capable of obtaining a sufficient agitation welding area at the interface between the plate members and increasing the joint strength. An object of the present invention is to provide a tool for friction stir welding.
【０００８】[0008]
【課題を解決するための手段】本発明に係る重ね継手の
摩擦撹拌接合方法は、アルミニウム又はアルミニウム合
金からなる１対の部材の接合すべき部分を重ね合わせ、
この重ね合わせ部を表面にネジが形成されたツールによ
り摩擦撹拌接合する方法において、前記ツールは基端側
から先端側に向けて径が大きくなる部分を有することを
特徴とすることを特徴とする。SUMMARY OF THE INVENTION A friction stir welding method for a lap joint according to the present invention comprises the steps of:
In the method of friction stir welding the overlapped portion using a tool having a thread formed on the surface, the tool has a portion whose diameter increases from a base end side to a tip end side. .
【０００９】本発明においては、先端側から基端側に向
けて径が大きくなる部分を有するツールを使用して摩擦
撹拌接合している。このため、部材の接合時に十分な撹
拌領域を得ることができるので、接合面積を大きくする
ことができる。従って、継手強度が高い重ね継手を得る
ことができる。In the present invention, friction stir welding is performed using a tool having a portion whose diameter increases from the distal end toward the proximal end. For this reason, a sufficient stirring area can be obtained at the time of joining the members, so that the joining area can be increased. Therefore, a lap joint having high joint strength can be obtained.
【００１０】この場合、前記ツールは径が最大の位置か
ら先端側に向けて径が小さくなる部分を有することが好
ましい。In this case, it is preferable that the tool has a portion whose diameter decreases from the position where the diameter is maximum toward the distal end side.
【００１１】本発明に係る他の重ね継手の摩擦撹拌接合
方法は、アルミニウム又はアルミニウム合金からなる１
対の部材の接合すべき部分を重ね合わせ、この重ね合わ
せ部を表面にネジが形成されたツールにより摩擦撹拌接
合する方法において、前記ツールはその先端に前記部材
の裏面に接触する張り出し部を有することを特徴とす
る。[0011] Another friction stir welding method for a lap joint according to the present invention is a method for welding a lap joint made of aluminum or an aluminum alloy.
In a method in which portions to be joined of a pair of members are overlapped, and the overlapped portion is friction stir welded with a tool having a thread formed on the surface, the tool has an overhanging portion at its tip which comes into contact with the back surface of the member. It is characterized by the following.
【００１２】本発明においては、先端部の部材の裏面に
接触する張り出し部が形成されたツールを使用して摩擦
撹拌接合している。このため、部材の接合時に裏面側か
らも部材は加熱されて塑性流動するので十分な撹拌領域
を得ることができる。これにより、接合面積を大きくす
ることができるので、継手強度が高い重ね継手を得るこ
とができる。In the present invention, friction stir welding is performed using a tool provided with an overhanging portion that contacts the back surface of the member at the tip end. Therefore, when the members are joined, the members are also heated and plastically flow from the back side, so that a sufficient stirring area can be obtained. As a result, the joining area can be increased, and a lap joint having high joint strength can be obtained.
【００１３】前記部材は、例えば、フランジ部を有し、
このフランジ部を重ね合わせて摩擦撹拌接合することが
できる。The member has, for example, a flange portion,
The flange portions can be overlapped to perform friction stir welding.
【００１４】本発明に係る重ね継手の摩擦撹拌接合用工
具は、基部と、前記基部から突出し表面にネジが形成さ
れたピン部とを有し、前記ピン部は基端側から先端側に
向けて径が大きくなる部分を有することを特徴とする。[0014] A friction stir welding tool for a lap joint according to the present invention has a base portion and a pin portion projecting from the base portion and having a thread formed on a surface, and the pin portion is directed from the base end side to the tip end side. It is characterized by having a portion having a large diameter.
【００１５】本発明に係る他の重ね継手の摩擦撹拌接合
用工具は、基部と、前記基部から突出し表面にネジが形
成されたピン部と、前記ピン部の先端部に設けられ接合
すべき部分の裏面に接触する張り出し部とを有すること
を特徴とする。[0015] Another friction stir welding tool for a lap joint according to the present invention is a base, a pin protruding from the base and having a thread formed on a surface, and a portion provided at a tip end of the pin and to be joined. And a projecting portion that contacts the rear surface of
【００１６】[0016]
【発明の実施の形態】以下、本発明の実施例に係る重ね
継手の摩擦撹拌接合方法及び重ね継手の摩擦撹拌接合用
工具について添付の図面を参照して詳細に説明する。図
１（ａ）は本発明の第１の実施例に係る重ね継手の摩擦
撹拌接合用工具を示す模式図、（ｂ）は本実施例の摩擦
撹拌接合工具により作製された重ね継手を示す断面図で
ある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for friction stir welding of a lap joint and a tool for friction stir welding of a lap joint according to an embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1A is a schematic view showing a friction stir welding tool for a lap joint according to a first embodiment of the present invention, and FIG. 1B is a cross-sectional view showing a lap joint produced by the friction stir welding tool of the present embodiment. FIG.
【００１７】本実施例の摩擦撹拌接合用工具は、図４
（ａ）に示す従来のツール２０と比較してピン部１１の
形状が異なり、それ以外の構成は従来のツール２０と同
一であり、その詳細な説明は省略する。本実施例のツー
ル２０においては、ピン部１１が先端に向かうにつれて
直径が太くなっており、先端部が太径部である。このよ
うにピン部１１において基端部よりも先端部側の直径を
太くすることにより、撹拌接合領域を広げることができ
る。FIG. 4 shows a friction stir welding tool according to this embodiment.
The shape of the pin portion 11 is different from that of the conventional tool 20 shown in (a), the other configuration is the same as that of the conventional tool 20, and the detailed description thereof is omitted. In the tool 20 of the present embodiment, the diameter increases as the pin portion 11 moves toward the distal end, and the distal end portion is a large diameter portion. In this way, by increasing the diameter of the pin portion 11 on the distal end side from the base end portion, it is possible to widen the stir welding region.
【００１８】次に、本実施例のツール２０を使用して上
側の板材１の板厚が下側の板材２よりも厚い重ね継手を
接合した場合について説明する。なお、この重ね継手は
ピン部１１が圧入される板材２の裏面にパッキング材
（図示せず）を設けて接合したものである。本実施例に
おいては、図４（ａ）に示す従来の摩擦撹拌接合方法と
同様にして接合することができ、重ね継手を形成するこ
とができる。この場合、図１（ｂ）に示すように、従来
のように撹拌接合領域３の形状が台形状ではなく、板材
１の表面が一番幅広く徐々に幅が狭くなり板材１の中心
部で一番幅が狭くなって、そこから接合界面に向けて幅
が広くなり、接合界面から板材２の裏面に向かって幅が
狭くなる形状をしている。即ち、拡散接合領域界面３０
がテーパ状ではなく、曲線になっている。裏面側の領域
３の幅が狭くなるのは、パッキング材により冷却されて
しまうためである。このように、接合界面の面積を大き
くすることができるので、重ね継手の所定の強度を保持
することができる。また、ピン部１１の太径部は板材
１、２の界面４と整合する位置に形成されていることが
好ましい。これにより、更に一層接合面積を大きくする
ことができるので、継手の強度を更に一層向上させるこ
とができる。Next, a case where a lap joint in which the thickness of the upper plate 1 is larger than that of the lower plate 2 using the tool 20 of the present embodiment will be described. The lap joint is formed by providing a packing material (not shown) on the back surface of the plate material 2 into which the pin portion 11 is press-fitted and joined. In this embodiment, joining can be performed in the same manner as the conventional friction stir welding method shown in FIG. 4A, and a lap joint can be formed. In this case, as shown in FIG. 1 (b), the shape of the stir welding region 3 is not trapezoidal as in the prior art, but the surface of the plate material 1 is the widest and gradually narrows. The width becomes narrower, the width increases from there to the bonding interface, and the width decreases from the bonding interface toward the back surface of the plate material 2. That is, the diffusion bonding region interface 30
Are not tapered but curved. The reason why the width of the region 3 on the back surface side is reduced is that the region 3 is cooled by the packing material. As described above, since the area of the joint interface can be increased, the predetermined strength of the lap joint can be maintained. Further, it is preferable that the large diameter portion of the pin portion 11 is formed at a position matching the interface 4 between the plate materials 1 and 2. As a result, the joint area can be further increased, so that the strength of the joint can be further improved.
【００１９】図２は本発明の第２の実施例に係る摩擦撹
拌接合工具を示す模式図である。なお、図１（ａ）及び
（ｂ）に示す第１の実施例と同一構成物には同一符号を
付しその詳細な説明は省略する。本実施例は、第１の実
施例と比較してピン部１１ａの途中に太径部が形成され
ている点が異なり、それ以外の構成は第１の実施例の構
成と同様である。本実施例のピン部１１ａは、基端部か
ら太径部までの長さがｔ1、太径部から先端までの長さ
がｔ2である。本実施例においても、ツール２０を使用
して、第１の実施例と同様に板材１、２を接合し、重ね
継手を形成することができる。FIG. 2 is a schematic view showing a friction stir welding tool according to a second embodiment of the present invention. The same components as those in the first embodiment shown in FIGS. 1A and 1B are denoted by the same reference numerals, and detailed description thereof will be omitted. This embodiment is different from the first embodiment in that a large-diameter portion is formed in the middle of the pin portion 11a, and the other configuration is the same as that of the first embodiment. Pin portion 11a of this embodiment, t 1 is the length from the base end to the large diameter portion, is t 2 the length from the large-diameter portion to the tip. Also in this embodiment, the lap joint can be formed by joining the plate materials 1 and 2 using the tool 20 in the same manner as in the first embodiment.
【００２０】また、基端部の直径がＤ、太径部の直径が
１．２Ｄである。この基端部から太径部までの長さｔ1
及び太径部から先端までの長さｔ2は、重ね継手を構成
する板材１、２の板厚ｔ1及びｔ2に対応している。即
ち、接合時に板材１、２の界面４と太径部との位置が一
致する。これにより、接合面積を更に大きくすることが
でき、強度が更に高い重ね継手を作製することができ
る。本実施例においては、例えば重ね継手の総板厚が３
ｍｍで、板材１の板厚ｔ1が２ｍｍ、板材２の板厚ｔ2が
１ｍｍのとき、ピン部１１の基端部の直径Ｄは５ｍｍで
あり、ピン部１１の太径部の直径は６ｍｍである。The diameter of the base end is D, and the diameter of the large diameter part is 1.2D. Length t 1 from the base end to the large diameter part
And length t 2 from the large diameter portion to the tip corresponds to the plate thickness t 1 and t 2 of the plate members 1 and 2 constituting a lap joint. That is, at the time of joining, the position of the interface 4 between the plate materials 1 and 2 and the large-diameter portion coincide. Thereby, the joining area can be further increased, and a lap joint having higher strength can be manufactured. In this embodiment, for example, the total thickness of the lap joint is 3
mm, the thickness t 1 of the plate 1 is 2 mm, and the thickness t 2 of the plate 2 is 1 mm, the diameter D of the base end of the pin 11 is 5 mm, and the diameter of the large diameter of the pin 11 is 6 mm.
【００２１】図３（ａ）は本発明の第３の実施例に係る
摩擦撹拌接合工具を示す模式図、（ｂ）は本実施例の摩
擦撹拌接合工具により作製された重ね継手を示す断面図
である。なお、図１（ａ）及び（ｂ）に示す第１の実施
例と同一構成物には同一符号を付しその詳細な説明は省
略する。本実施例は、第１の実施例と比較してピン部１
１ｂの形状が従来のツールのピン部１５と同一形状であ
り、また、ピン部１１ｂの先端に張り出し部１４が設け
られている点が異なり、それ以外の構成は第１の実施例
の構成と同一である。この張り出し部１４はパッキング
材の代わりに設けられているものであり、接合する板材
１、２の裏面に接触するように配置されている。張り出
し部１４はツール２０が回転すると回転し、板材２の裏
面を摩擦して板材２を裏面側から塑性流動させるもので
ある。FIG. 3A is a schematic view showing a friction stir welding tool according to a third embodiment of the present invention, and FIG. 3B is a cross-sectional view showing a lap joint produced by the friction stir welding tool of this embodiment. It is. The same components as those in the first embodiment shown in FIGS. 1A and 1B are denoted by the same reference numerals, and detailed description thereof will be omitted. This embodiment is different from the first embodiment in that
1b has the same shape as the pin portion 15 of the conventional tool, and is different in that an overhang portion 14 is provided at the tip of the pin portion 11b, and other configurations are the same as those of the first embodiment. Identical. The overhang portion 14 is provided instead of the packing material, and is arranged so as to contact the back surfaces of the plate materials 1 and 2 to be joined. The overhanging portion 14 rotates when the tool 20 rotates, and rubs the back surface of the plate material 2 to plastically flow the plate material 2 from the back surface side.
【００２２】本実施例のツール２０を使用して、第１の
実施例と同様に上側の板材１の板厚が下側の板材２より
も厚い重ね継手を接合した場合について説明する。この
場合も、第１の実施例と同様にして板材１、２を接合す
ることができ、これにより、図３（ｂ）に示すように、
重ね継手を形成することができる。本実施例において
は、張り出し部１４の回転による摩擦熱により板材２の
裏面が加熱されて塑性流動される。このため、撹拌接合
領域界面３１は直線状ではなく、重ね継手の板厚方向の
中央部付近において撹拌接合領域３の幅が狭くなるよう
な、継手の板厚中央部付近で屈曲した界面３１となる。
このように、接合界面において十分な接合幅を得ること
ができる。これにより、接合面積を大きくすることがで
きるので、強度が高い重ね継手を作製することができ
る。A description will be given of a case where a lap joint in which the thickness of the upper plate 1 is larger than the thickness of the lower plate 2 using the tool 20 of the present embodiment as in the first embodiment. Also in this case, the plate materials 1 and 2 can be joined in the same manner as in the first embodiment, and as a result, as shown in FIG.
A lap joint can be formed. In the present embodiment, the back surface of the plate 2 is heated by frictional heat generated by the rotation of the overhang portion 14 and plastically flows. For this reason, the interface 31 of the stir welding region is not linear, and the interface 31 bent near the center of the joint thickness such that the width of the stir welding region 3 becomes narrow near the center of the lap joint in the plate thickness direction. Become.
Thus, a sufficient bonding width can be obtained at the bonding interface. As a result, the joining area can be increased, and a lap joint having high strength can be manufactured.
【００２３】いずれの本実施例においても、２枚の板材
を重ね合わせた重ね継手を作製したが、本発明はこれに
限定されるものではなく、フランジ部を有する部材を重
ね合わせ、このフランジ部を接合することもできる。な
お、本発明の重ね継手の摩擦撹拌接合用工具の用途とし
ては、例えば圧力容器、燃料タンク、鉄道車両又は自動
車等である。また、本発明において、重ね継手に使用さ
れる板材としては、例えば５０００系又は６０００系等
のアルミニウム合金材である。In each of the embodiments, a lap joint in which two plate members are overlapped was manufactured. However, the present invention is not limited to this. A member having a flange portion is overlapped and Can also be joined. The application of the friction stir welding tool for a lap joint according to the present invention is, for example, a pressure vessel, a fuel tank, a railway vehicle or an automobile. In the present invention, the plate material used for the lap joint is, for example, a 5000 series or 6000 series aluminum alloy material.
【００２４】また、いずれの実施例においても、ツール
２０の回転方向を逆回転方向に回転させたが、順回転方
向に回転させても接合することができる。この場合、ツ
ール２０による塑流動領域の対流が抑制されるので、板
材１、２の界面４が若干亀裂状に上方に巻き込まれるこ
とが防止され、重ね継手の強度低下を抑制することがで
きる。In each embodiment, the tool 20 is rotated in the reverse rotation direction, but the tool 20 can be joined by rotating in the forward rotation direction. In this case, the convection of the plastic flow region by the tool 20 is suppressed, so that the interface 4 between the plate materials 1 and 2 is prevented from being slightly upwardly caught in a crack shape, and a decrease in the strength of the lap joint can be suppressed.
【００２５】また、本発明においては、ツール２０は、
例えば工具鋼又は高速度工具鋼からなるものであり、板
材の種類によっては、ツール２０の表面にコーティング
をしてもよい。In the present invention, the tool 20 comprises:
For example, it is made of tool steel or high-speed tool steel. Depending on the type of plate material, the surface of the tool 20 may be coated.
【００２６】[0026]
【発明の効果】以上詳述したように本発明によれば、先
端側から基端側に向けて径が大きくなる部分を有するツ
ールを使用して摩擦撹拌接合している。このため、部材
の接合時に十分な撹拌領域を得ることができるので、接
合面積を大きくすることができる。従って、継手強度が
高い重ね継手を得ることができる。As described in detail above, according to the present invention, friction stir welding is performed using a tool having a portion whose diameter increases from the distal end toward the proximal end. For this reason, a sufficient stirring area can be obtained at the time of joining the members, so that the joining area can be increased. Therefore, a lap joint having high joint strength can be obtained.
【００２７】また、本発明によれば、先端部の部材の裏
面に接触する張り出し部が形成されたツールを使用して
摩擦撹拌接合しているので、部材の接合時に裏面側から
も部材は加熱されて塑性流動されるので、十分な撹拌領
域を得ることができる。これにより、接合面積を大きく
することができるので、継手強度が高い重ね継手を得る
ことができる。Further, according to the present invention, since the friction stir welding is performed using the tool having the overhanging portion in contact with the back surface of the member at the tip end, the member can be heated even from the back surface side when the members are joined. As a result, a sufficient stirring area can be obtained. As a result, the joining area can be increased, and a lap joint having high joint strength can be obtained.
【図１】（ａ）は本発明の第１の実施例に係る重ね継手
の摩擦撹拌接合用工具を示す模式図、（ｂ）は本実施例
の摩擦撹拌接合工具により作製された重ね継手を示す断
面図である。FIG. 1A is a schematic view showing a friction stir welding tool for a lap joint according to a first embodiment of the present invention, and FIG. 1B is a view showing a lap joint produced by the friction stir welding tool of the embodiment. FIG.
【図２】本発明の第２の実施例に係る摩擦撹拌接合工具
を示す模式図である。FIG. 2 is a schematic view showing a friction stir welding tool according to a second embodiment of the present invention.
【図３】（ａ）は本発明の第３の実施例に係る摩擦撹拌
接合工具を示す模式図、（ｂ）は本実施例の摩擦撹拌接
合工具により作製された重ね継手を示す断面図である。FIG. 3A is a schematic view illustrating a friction stir welding tool according to a third embodiment of the present invention, and FIG. 3B is a cross-sectional view illustrating a lap joint manufactured by the friction stir welding tool according to the present embodiment. is there.
【図４】（ａ）は従来の摩擦撹拌接合工具により接合さ
れた突合せ継手を示す模式図、（ｂ）は同じく下板の板
厚が上板の板厚よりも厚い重ね継手を示す模式図、
（ｃ）は上板及び下板の板厚が等しい重ね継手を示す模
式図、（ｄ）は上板の板厚が下板の板厚よりも厚い重ね
継手を示す模式図である。FIG. 4 (a) is a schematic diagram showing a butt joint joined by a conventional friction stir welding tool, and FIG. 4 (b) is a schematic diagram showing a lap joint in which the lower plate is also thicker than the upper plate. ,
(C) is a schematic diagram showing a lap joint in which the upper plate and the lower plate have the same plate thickness, and (d) is a schematic diagram showing a lap joint in which the plate thickness of the upper plate is greater than the plate thickness of the lower plate.
１、２；板材 ３；撹拌接合領域 ４、５；界面 １０；基部 １１、１１ａ、１１ｂ、１５；ピン部 １２；ネジ部 １３；ショルダ部 １４；張り出し部 ３０、３１；摩擦撹拌接合界面 1, 2; plate material 3: stir welding region 4, 5; interface 10; base portion 11, 11a, 11b, 15; pin portion 12; screw portion 13; shoulder portion 14; overhang portion 30, 31; friction stir welding interface
Claims (6)
なる１対の部材の接合すべき部分を重ね合わせ、この重
ね合わせ部を表面にネジが形成されたツールにより摩擦
撹拌接合する方法において、前記ツールは基端側から先
端側に向けて径が大きくなる部分を有することを特徴と
することを特徴とする重ね継手の摩擦撹拌接合方法。1. A method of friction stir welding a pair of members made of aluminum or an aluminum alloy to be joined by using a tool having a thread formed on a surface thereof. A friction stir welding method for a lap joint, characterized by having a portion having a diameter increasing from a side to a tip side.
に向けて径が小さくなる部分を有することを特徴とする
請求項１に記載の重ね継手の摩擦撹拌接合方法。2. The friction stir welding method for a lap joint according to claim 1, wherein the tool has a portion whose diameter decreases from a position where the diameter is maximum toward a tip end side.
なる１対の部材の接合すべき部分を重ね合わせ、この重
ね合わせ部を表面にネジが形成されたツールにより摩擦
撹拌接合する方法において、前記ツールはその先端に前
記部材の裏面に接触する張り出し部を有することを特徴
とする重ね継手の摩擦撹拌接合方法。3. A method in which a pair of members made of aluminum or an aluminum alloy to be joined are overlapped, and the overlapped portion is friction stir welded by a tool having a thread formed on a surface thereof, wherein the tool has a tip end. A lap joint for friction stir welding.
ンジ部を重ね合わせて摩擦撹拌接合することを特徴とす
る請求項１乃至３のいずれか１項に記載の重ね継手の摩
擦撹拌接合方法。4. The friction stir welding method for a lap joint according to claim 1, wherein the member has a flange portion, and the flange portions are overlapped and subjected to friction stir welding. .
が形成されたピン部とを有し、前記ピン部は基端側から
先端側に向けて径が大きくなる部分を有することを特徴
とする重ね継手の摩擦撹拌接合用工具。5. A semiconductor device comprising: a base portion; and a pin portion projecting from the base portion and having a thread formed on a surface thereof, wherein the pin portion has a portion whose diameter increases from a base end side to a tip end side. For friction stir welding of lap joints.
が形成されたピン部と、前記ピン部の先端部に設けられ
接合すべき部分の裏面に接触する張り出し部とを有する
ことを特徴とする重ね継手の摩擦撹拌接合用工具。6. A base portion, a pin portion projecting from the base portion and having a thread formed on a surface thereof, and an overhang portion provided at a tip end portion of the pin portion and in contact with a back surface of a portion to be joined. For friction stir welding of lap joints.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001150245A JP2002035964A (en) | 2000-05-19 | 2001-05-21 | Friction stir welding method and tool for lap joint |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000149130 | 2000-05-19 | ||
| JP2000-149130 | 2000-05-19 | ||
| JP2001150245A JP2002035964A (en) | 2000-05-19 | 2001-05-21 | Friction stir welding method and tool for lap joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002035964A true JP2002035964A (en) | 2002-02-05 |
Family
ID=26592281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001150245A Pending JP2002035964A (en) | 2000-05-19 | 2001-05-21 | Friction stir welding method and tool for lap joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002035964A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6510975B2 (en) * | 2000-05-31 | 2003-01-28 | Showa Denko K.K. | Friction agitation joining tool and friction agitation joining method using the same |
| JP2006212651A (en) * | 2005-02-02 | 2006-08-17 | Sumitomo Light Metal Ind Ltd | Friction stir spot welding method, and rotary tool for friction stir spot welding used for it |
| US7392771B2 (en) | 2003-01-28 | 2008-07-01 | Honda Motor Co., Ltd. | Cylinder block and cylinder sleeve, method of producing cylinder block and cylinder sleeve by friction stir welding, and friction stir welding method |
| JP2009061510A (en) * | 2008-12-25 | 2009-03-26 | Nippon Sharyo Seizo Kaisha Ltd | Tool for friction stir joining |
| EP2316604A1 (en) | 2009-10-29 | 2011-05-04 | Mitsubishi Heavy Industries, Ltd. | Friction stir welding apparatus for overlapped joints |
| JP2012091231A (en) * | 2012-01-10 | 2012-05-17 | Mitsubishi Heavy Ind Ltd | Friction stir joining apparatus for lap joining |
| CN103521912A (en) * | 2013-10-10 | 2014-01-22 | 天津大学 | Friction stir welding tool for overlap joint |
| DE102012025140A1 (en) * | 2012-12-21 | 2014-06-26 | Eads Deutschland Gmbh | Friction stir tool, manufacturing method thereof and friction stir process |
| CN104400215A (en) * | 2014-11-26 | 2015-03-11 | 哈尔滨工业大学 | Stirring head for friction stir overlap welding for reducing size of interface defect and welding method thereof |
| JP2015066574A (en) * | 2013-09-27 | 2015-04-13 | 三菱重工業株式会社 | Friction agitation tool, friction agitation junction apparatus, friction agitation junction method, and junction material |
| CN104625394A (en) * | 2015-02-12 | 2015-05-20 | 江苏烁石焊接科技有限公司 | Single-shoulder stirring head used for welding metal clad plates |
| CN108356406A (en) * | 2018-04-17 | 2018-08-03 | 安徽工程大学 | A kind of titanium alloy surface agitating friction modification stirring-head |
-
2001
- 2001-05-21 JP JP2001150245A patent/JP2002035964A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6510975B2 (en) * | 2000-05-31 | 2003-01-28 | Showa Denko K.K. | Friction agitation joining tool and friction agitation joining method using the same |
| US7392771B2 (en) | 2003-01-28 | 2008-07-01 | Honda Motor Co., Ltd. | Cylinder block and cylinder sleeve, method of producing cylinder block and cylinder sleeve by friction stir welding, and friction stir welding method |
| JP2006212651A (en) * | 2005-02-02 | 2006-08-17 | Sumitomo Light Metal Ind Ltd | Friction stir spot welding method, and rotary tool for friction stir spot welding used for it |
| JP2009061510A (en) * | 2008-12-25 | 2009-03-26 | Nippon Sharyo Seizo Kaisha Ltd | Tool for friction stir joining |
| EP2316604A1 (en) | 2009-10-29 | 2011-05-04 | Mitsubishi Heavy Industries, Ltd. | Friction stir welding apparatus for overlapped joints |
| CN102049610A (en) * | 2009-10-29 | 2011-05-11 | 三菱重工业株式会社 | Friction stir welding apparatus for overlapped joints |
| JP2011092971A (en) * | 2009-10-29 | 2011-05-12 | Mitsubishi Heavy Ind Ltd | Friction stir welding apparatus for lap joint |
| US8104664B2 (en) | 2009-10-29 | 2012-01-31 | Mitsubishi Heavy Industries, Ltd. | Friction stir welding apparatus for overlapped joints |
| JP2012091231A (en) * | 2012-01-10 | 2012-05-17 | Mitsubishi Heavy Ind Ltd | Friction stir joining apparatus for lap joining |
| DE102012025140A1 (en) * | 2012-12-21 | 2014-06-26 | Eads Deutschland Gmbh | Friction stir tool, manufacturing method thereof and friction stir process |
| JP2015066574A (en) * | 2013-09-27 | 2015-04-13 | 三菱重工業株式会社 | Friction agitation tool, friction agitation junction apparatus, friction agitation junction method, and junction material |
| CN103521912A (en) * | 2013-10-10 | 2014-01-22 | 天津大学 | Friction stir welding tool for overlap joint |
| CN103521912B (en) * | 2013-10-10 | 2015-11-25 | 天津大学 | A kind of friction stir welding tools for lap joint |
| CN104400215A (en) * | 2014-11-26 | 2015-03-11 | 哈尔滨工业大学 | Stirring head for friction stir overlap welding for reducing size of interface defect and welding method thereof |
| CN104400215B (en) * | 2014-11-26 | 2016-03-23 | 哈尔滨工业大学 | A kind of agitating friction overlap welding method reducing boundary defect size |
| CN104625394A (en) * | 2015-02-12 | 2015-05-20 | 江苏烁石焊接科技有限公司 | Single-shoulder stirring head used for welding metal clad plates |
| CN108356406A (en) * | 2018-04-17 | 2018-08-03 | 安徽工程大学 | A kind of titanium alloy surface agitating friction modification stirring-head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Watanabe et al. | Joining of aluminum alloy to steel by friction stir welding | |
| JP3897391B2 (en) | Friction stir welding method for metal joining members | |
| JP2002035964A (en) | Friction stir welding method and tool for lap joint | |
| JP2000246465A (en) | Tool for friction agitation joining | |
| JP2002035962A (en) | Friction stir welding method for lap joint | |
| JP2672182B2 (en) | Joining method for steel-based materials and aluminum-based materials | |
| JP3296417B2 (en) | Friction stir welding method | |
| JP3290608B2 (en) | Friction stir welding method | |
| JP2007209987A (en) | Friction stir welding method | |
| JP2002248582A (en) | Friction stir welding method | |
| JPH10249551A (en) | Jig for friction-agitation joining and friction-agitation joining method using the jig | |
| JP3825140B2 (en) | Friction stir welding method | |
| CN107876966B (en) | It is a kind of to reduce Friction Stir Welding to the welding method of lap joint defect | |
| JP2006205190A (en) | Method of joining dissimilar metals | |
| JPH08141755A (en) | Friction welding method for different kinds of metallic material | |
| JP3482523B2 (en) | Friction joining method | |
| JP2003236682A (en) | Method for joining pipe-like members | |
| JP3283439B2 (en) | Jig for friction stir welding | |
| JPH1158040A (en) | Friction-stirring-joining method for different kind of metal-made works | |
| JP2002283070A (en) | Friction stir welding method for different kinds of metallic materials | |
| JP2002096182A (en) | Bonding method, revolving tool and joining body by friction heating | |
| JP2002224858A (en) | Joining method for different thickness joint | |
| JP6794945B2 (en) | Joining method | |
| JP6777020B2 (en) | Joining method | |
| JP2004066331A (en) | Friction agitation welding method of different kind of metal |