JP2003117667A - Ultrasonic welding equipment of tube - Google Patents
Ultrasonic welding equipment of tubeInfo
- Publication number
- JP2003117667A JP2003117667A JP2001352393A JP2001352393A JP2003117667A JP 2003117667 A JP2003117667 A JP 2003117667A JP 2001352393 A JP2001352393 A JP 2001352393A JP 2001352393 A JP2001352393 A JP 2001352393A JP 2003117667 A JP2003117667 A JP 2003117667A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- ultrasonic
- welding section
- semi
- section
- 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
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本装置は、管材の接合部を局
部的に溶着、又は溶接する超音波溶接装置。
【０００２】
【従来の技術】従来、管材の溶接方法は、アーク溶接、
テグ溶接、又はガス溶接等があるが、管材及び溶加材を
加熱溶解させて接合させる熱源溶接のために、作動ガ
ス、シールドガスの使用は溶接する必須要素であった。
熱源型溶接の欠点は、加熱溶解による接合部分の材質組
織の粗大化を発生させ、材質の劣化を誘因させてブロー
ホールやピット現象を発生させたり、溶接部分の管材表
面に酸化皮膜を発生させたり、風の影響も受けやすく、
溶接部分の品質の均一化を保持するのが困難であった。
以上の現象を未然に防ぐため、シールドガスの放出は絶
対条件であったし、微細な操作も必要であった。下記に
公知技術、周知技術を列記する。
【０００３】超音波溶接方法には、管材封止方法（例え
ば特開昭６１−１８６１８３参照）、管材封止装置（例
えば特開昭６１−１８６１８４参照）、又はヒートハイ
プ封止部構造（例えば特開平５−３２２４６３参照）が
ある。更に、短管溶接方法には超音波接合方法（例えば
平３−１１４６８３）がある。しかし、長物管材の溶接
装置が簡易軽量で、狭い作業空間での溶接に適合する溶
接装置は皆無であった。更に、溶接できる部材の板厚や
管厚にも制限があった。
【０００４】電気ロウ付機には、ソルディＥＣ−４００
等が慣用技術として市販されているが、溶接時間が長く
大量生産の溶接には不向きであった。
【０００５】
【発明が解決しようとする課題】この装置は、上記従来
技術の問題点を解決することを課題とする。より特定す
れば、熱源型溶接方法の必須要素であるシールドガスや
作動ガスを排除しても溶接できる装置の開発を目的とす
る。更に、溶接する管材の内外の面に発生する酸化皮膜
及びスラグを除去し、溶接の安定を図り、簡易軽量で移
動可能な管材溶接装置を提供することを課題とする。
【０００６】
【課題を解決するための手段】本装置は、上記目的を解
決するために、下記の構成からなる。
【０００７】下端部に管材を挟む、半円筒形の挟み口
（２９）を形成した超音波溶接部門（１）を造成し、連
成する超音波部柄（３）を具備する。又、超音波部柄
（３）の任意の場所に掛止具（３１）を設ける。
【０００８】超音波溶接部門（１）は、上端部に超音波
振動部（５）を形成する。その構成は、一部に超音波振
動子（１１）を設け、共振増幅させるホーンＡ（１
２）、ホーンＢ（１３）を接合させ、半円筒形の挟み口
（２９）の中心部分に位置する超音波振動端子（７）を
共振させる。
【０００９】又、超音波溶接部門（１）は、下端部の半
円筒形の挟み口（２９）部分の中心部に位置する超音波
振動端子（７）から区別された近傍に、半円筒形の予熱
発生部（９）を屈設する。隣接する両端に半円筒形の加
圧形状記憶合金部（８）を屈設する。又、加圧形状記憶
合金部（８）の先端部分に伸縮材（２２）を装着させ
る。
【００１０】上端部に管材を挟む、半円筒形の挟み口
（２９）を形成した溶接部門（２）を造成し、連成する
溶接部柄（４）を具備する。又、溶接部柄（４）の一端
に回転自在に作動する締付装置（６）を係着させる。更
に、締付装置（６）の一部分に係合孔（３０）を設け
る。
【００１１】溶接部門（２）は、上端部の半円筒形の挟
み口（２９）部分の中心部に位置した半円筒形の予熱発
生部（９）を屈設させる。又、隣接する両端に半円筒形
の加圧形状記憶合金部（８）を屈設する。又、加圧形状
記憶合金部（８）の先端部分に伸縮材（２２）を装着さ
せる。
【００１２】超音波溶接部門（１）に内蔵された超音波
振動子（１１）は、超音波発振器（１５）より導線（１
８）も以て、振動子用導線端子台（２５）を介して接続
される。
【００１３】超音波溶接部門（１）と溶接部門（２）に
各々内蔵される予熱発生部（８）は、熱源発生器（１
６）より導線（１７）で以て、予熱用導線端子台（２
５）を介して接続される。
【００１４】超音波溶接部門（１）と溶接部門（２）
は、係止具（２８）に以て一対に挟扼する。
【００１５】
【発明の実施の形態】本装置は、超音波溶接部門（１）
と溶接部門（２）が係止具（２８）を介し、管材を上下
から一対に挟扼し溶接する装置である。
【００１６】図によって説明すれば、超音波溶接部門
（１）は、下端部に管材を挟む半円筒形の挟み口（２
９）を形成し、上端部に超音波振動部（５）を具備し、
その構成は、一部に超音波振動子（１１）を設け、共振
増幅させるホーンＡ（１２）、ホーンＢ（１３）を介し
て、半円筒形の挟み口（２９）に位置する超音波振動端
子（７）を共振させ、超音波振動を発生させることがで
きる。
【００１７】溶接部門（２）は上端部に管材を挟む半円
筒形の挟み口（２９）を形成し、半円筒形の挟み口の中
心部に位置する半円筒形の予熱発生部（９）を屈設す
る。又、隣接する両端に半円筒形の加圧形状記憶合金部
（８）を屈設し、先端部に伸縮材（２２）を装着させ、
管外径に適合した接着面を保持する。
【００１８】超音波溶接部門（１）と連成する超音波部
柄（３）に掛止具（３１）を設け、溶接部門（２）と連
成する溶接部柄（４）に締付装置（６）を係着させ、そ
の一端にある係合孔（３０）と掛止具（３１）を掛合さ
せ、締付装置を駆動させて超音波溶接部門（１）と溶接
部門（２）の両装置に、任意の押付け加圧を与えること
ができる。
【００１９】超音波溶接部門（１）に内蔵した超音波振
動端子（７）は振動端子枠（２４）にネジで嵌入され、
管材（１４）、管継手（２０）の管外径に対応して応動
する。更に、締付装置（６）の締付駆動と連動し、超音
波振動端子（７）の先端に任意の押付け加圧を与えるこ
とができる。
【００２０】超音波溶接部門（１）と溶接部門（２）に
内蔵した予熱発生部（９）は、熱源発生器（１６）で発
生する熱源を導線（１７）で以て伝導され、任意の温度
に発熱励起する。更に、発熱励起した熱と超音波振動の
摩擦熱が干渉し、加熱された熱が管材に伝幡され、溶接
が促進される。
【００２１】超音波溶接部門（１）と溶接部門（２）に
内蔵された加圧形状記憶合金部（８）は、予熱発生部
（９）で発生する熱を吸収して、熱膨張の変態応力を発
揮し加圧形状記憶合金部（８）が伸びて、管材Ａ（１
４）、管継手（２０）に押付け加圧を発生させることが
できる。
【００２２】加圧形状記憶合金部（８）の先端部分に装
着した伸縮材（２２）は、加熱によって膨張し、押付け
加圧を発生させる加圧形状記憶合金部（８）の過度の加
圧を低減することができる。
【００２３】図４により、弾性体（１０）はコイルばね
を装着させることで、管外径の変動に対応して、予熱発
生部（９）を管材Ａ（１４）に圧着させることができ
る。
【００２４】図３により、管材Ａ（１４）に加圧形状記
憶合金部（８）の先端部分に装着した伸縮材（２２）は
石綿を装着させることで、加圧形状記憶合金部（８）が
発生させる過度の押付け加圧を低減させることができ
る。
【００２５】図３により、超音波振動端子（７）は振動
端子枠（２４）内の上端にコイルばねを挿設した下端に
挿着され、管外径に適合した圧着ができ、超音波振動を
伝動することができる。
【００２６】
【発明の効果】以上の説明の通り、本装置は熱源型溶接
方法では必須要素であったシールドガス及び作動ガスを
排除しても溶接可能であり、尚かつ、超音波の振動作用
及び摩擦熱で被管材の表裏面の酸化皮膜の発生を除去
し、有機物を除去して、溶接による材質の脆化を防ぎ、
溶接に適合した条件を充す簡易な溶接装置を提供するこ
とである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultrasonic welding apparatus for locally welding or welding joints of pipes. [0002] Conventionally, pipe welding methods are arc welding,
There are Teg welding, gas welding, and the like. However, for heat source welding in which a pipe material and a filler material are heated and melted and joined, the use of a working gas and a shield gas is an essential element to be welded.
The disadvantages of heat source welding are that the material structure of the joints becomes coarser due to melting by heating, which causes deterioration of the material, causing blowholes and pits, and the formation of an oxide film on the pipe surface of the welded parts. And are easily affected by the wind,
It was difficult to keep the quality of the welded parts uniform.
In order to prevent the above phenomena, the release of the shielding gas was an absolute condition, and a fine operation was required. The publicly known technology and the publicly known technology are listed below. [0003] The ultrasonic welding method includes a tube material sealing method (for example, see Japanese Patent Application Laid-Open No. 61-186183), a tube material sealing device (for example, see Japanese Patent Application Laid-Open No. 61-186184), or a heat-hype sealing structure (for example, Japanese Patent Application Laid-Open No. 5-322463). Further, there is an ultrasonic joining method (for example, flat 3-114683) as a short pipe welding method. However, the welding equipment for long pipe materials is simple and lightweight, and there is no welding equipment suitable for welding in a narrow work space. Furthermore, there were restrictions on the plate thickness and tube thickness of the members that can be welded. [0004] Electric brazing machines include Soldy EC-400.
Are commercially available as conventional techniques, but the welding time is long and is not suitable for mass production welding. [0005] An object of the present invention is to solve the above-mentioned problems of the prior art. More specifically, an object of the present invention is to develop an apparatus capable of welding even when a shielding gas or a working gas, which is an essential element of a heat source type welding method, is eliminated. It is another object of the present invention to provide a simple and lightweight tube material welding device which removes an oxide film and a slag generated on inner and outer surfaces of a tube material to be welded, stabilizes welding, and is movable. The present invention has the following configuration to attain the above object. [0007] An ultrasonic welding section (1) having a semi-cylindrical pinch (29) formed at a lower end thereof and having a semi-cylindrical pinch (29) is formed, and an ultrasonic part (3) is provided. Also, a hook (31) is provided at an arbitrary position of the ultrasonic pattern (3). The ultrasonic welding section (1) forms an ultrasonic vibrating section (5) at the upper end. The configuration is such that a horn A (1) is provided with a part of an ultrasonic vibrator (11) for resonance amplification.
2) The horn B (13) is joined, and the ultrasonic vibration terminal (7) located at the center of the semi-cylindrical pinch (29) resonates. The ultrasonic welding section (1) has a semi-cylindrical shape near the ultrasonic vibration terminal (7) located at the center of the semi-cylindrical pinch (29) at the lower end. The preheating generating section (9) is bent. A semi-cylindrical pressurized shape memory alloy part (8) is bent at adjacent two ends. Also, an elastic member (22) is attached to the tip of the pressed shape memory alloy part (8). A welding section (2) having a semi-cylindrical pinch (29) formed at the upper end thereof and having a semi-cylindrical pinch (29) is formed, and a welding section (4) is provided. In addition, a tightening device (6) that is rotatably operated is attached to one end of the weld pattern (4). Further, an engagement hole (30) is provided in a part of the tightening device (6). The welding section (2) deflects a semi-cylindrical preheating section (9) located at the center of the semi-cylindrical pinch (29) at the upper end. Further, a semi-cylindrical pressurized shape memory alloy part (8) is bent at adjacent two ends. Also, an elastic member (22) is attached to the tip of the pressed shape memory alloy part (8). The ultrasonic vibrator (11) incorporated in the ultrasonic welding section (1) is connected to a lead wire (1) by an ultrasonic oscillator (15).
8) is also connected via the conductor terminal block for vibrator (25). The preheating generator (8) incorporated in each of the ultrasonic welding section (1) and the welding section (2) includes a heat source generator (1).
6) With the wire (17), use the preheating wire terminal block (2).
5). Ultrasonic welding department (1) and welding department (2)
Are clamped in pairs by a locking member (28). DESCRIPTION OF THE PREFERRED EMBODIMENTS The present apparatus is used in an ultrasonic welding section (1).
And a welding section (2), which clamps and welds a pair of pipes from above and below via a fastener (28). Referring to the drawing, the ultrasonic welding section (1) is provided with a semi-cylindrical pinch (2) for holding a pipe at the lower end.
9) is formed, and an ultrasonic vibration part (5) is provided at an upper end part;
The configuration is such that an ultrasonic vibrator (11) is provided in a part, and the ultrasonic vibration located at the semi-cylindrical pinch (29) via a horn A (12) and a horn B (13) for resonance amplification. The terminal (7) can resonate and generate ultrasonic vibration. The welding section (2) forms a semi-cylindrical pinch (29) at the upper end for sandwiching the tube material, and a semi-cylindrical preheating section (9) located at the center of the semi-cylindrical pinch. Bend. In addition, a semi-cylindrical pressurized shape memory alloy part (8) is bent at the adjacent both ends, and an elastic material (22) is attached to the tip part,
Keep the adhesive surface suitable for the outside diameter of the tube. A hook (31) is provided on an ultrasonic part (3) coupled with the ultrasonic welding section (1), and a fastening device is provided on a welding part (4) coupled with the welding section (2). (6) is engaged, the engaging hole (30) at one end thereof is engaged with the hook (31), and the tightening device is driven to drive the ultrasonic welding section (1) and the welding section (2). Arbitrary pressing pressure can be applied to both devices. The ultrasonic vibration terminal (7) built in the ultrasonic welding section (1) is screwed into the vibration terminal frame (24),
It responds according to the outer diameter of the pipe (14) and the pipe joint (20). Further, in conjunction with the tightening drive of the tightening device (6), an arbitrary pressing pressure can be applied to the tip of the ultrasonic vibration terminal (7). The preheating generating section (9) incorporated in the ultrasonic welding section (1) and the welding section (2) conducts the heat source generated by the heat source generator (16) by the conducting wire (17), and is arbitrarily selected. Exothermic excitation to temperature. Further, the heat excited by the heat and the frictional heat of the ultrasonic vibration interfere with each other, and the heated heat is transmitted to the tube material, thereby facilitating welding. The pressurized shape memory alloy section (8) built in the ultrasonic welding section (1) and the welding section (2) absorbs the heat generated in the preheat generating section (9) and transforms the thermal expansion. By exerting stress, the pressurized shape memory alloy part (8) expands and the pipe material A (1
4) A pressing force can be generated on the pipe joint (20). The elastic member (22) attached to the distal end portion of the pressed shape memory alloy part (8) expands due to heating, and excessively pressurizes the pressed shape memory alloy part (8) to generate pressing force. Can be reduced. As shown in FIG. 4, the preheat generating portion (9) can be pressed against the tube material A (14) in response to the change in the tube outer diameter by mounting the coil spring on the elastic member (10). As shown in FIG. 3, the elastic material (22) attached to the distal end portion of the pressurized shape memory alloy part (8) is attached to the pipe material A (14) by asbestos, so that the pressurized shape memory alloy part (8) The excessive pressing force generated by the above can be reduced. According to FIG. 3, the ultrasonic vibrating terminal (7) is inserted into the lower end of the vibrating terminal frame (24) in which a coil spring is inserted into the upper end, and can be crimped to fit the outer diameter of the tube. Can be transmitted. As described above, the present apparatus can be welded even if the shield gas and the working gas, which are essential elements in the heat source type welding method, are eliminated, and the ultrasonic vibration action And the generation of oxide film on the front and back surfaces of the pipe material is removed by frictional heat, organic matter is removed, and material embrittlement due to welding is prevented,
An object of the present invention is to provide a simple welding device that satisfies conditions suitable for welding.
【図面の簡単な説明】 【図１】本発明の斜視図 【図２】本発明の平面図 【図３】Ａ−Ａ断面図 【図４】本発明の側面図 【符号の説明】 １ 超音波溶接部門 ２ 溶接部門 ３ 超音波部柄 ４ 溶接部柄 ５ 超音波振動部 ６ 締付装置 ７ 超音波振動端子 ８ 加圧形状記憶合金部 ９ 予熱発生部 １０ 弾性体 １１ 超音波振動子 １２ ホーンＡ １３ ホーンＢ １４ 管材Ａ １５ 超音波発生器 １６ 熱源発生器 １７ 導線 １８ 導線 １９ 管材Ｂ ２０ 管継手 ２１ フランジ ２２ 伸縮材 ２３ 内部導線 ２４ 振動端子枠 ２５ 予熱用導線端子台 ２６ 内部導線 ２７ 振動子用導線端子台 ２８ 係止具 ２９ 半円筒形の挟み口 ３０ 係合孔 ３１ 掛止具[Brief description of the drawings] FIG. 1 is a perspective view of the present invention. FIG. 2 is a plan view of the present invention. FIG. 3 is a sectional view taken along line AA. FIG. 4 is a side view of the present invention. [Explanation of symbols] 1 Ultrasonic welding section 2 Welding section 3 Ultrasound pattern 4 Weld pattern 5 Ultrasonic vibrator 6 Tightening device 7 Ultrasonic vibration terminal 8 Pressed shape memory alloy part 9 Preheating generator 10 Elastic body 11 Ultrasonic vibrator 12 Horn A 13 Horn B 14 Tube material A 15 Ultrasonic generator 16 Heat source generator 17 conductor 18 conductor 19 Tube material B 20 pipe fittings 21 Flange 22 Elastic material 23 Internal conductor 24 Vibration terminal frame 25 Preheating wire terminal block 26 Internal conductor 27 Conductor terminal block for vibrator 28 Latch 29 Semi-cylindrical pinch 30 Engagement hole 31 Hook
Claims (1)
端部に管材を挟む半円筒形の挟み口を形成して、中心部
に位置する超音波振動端子を共振させる機能を有した超
音波溶接部門を具備し、 ｂ） 更に、超音波溶接部門に連成する超音波部柄を形
成し、その一部に掛止具を具有し、 ｃ） 他方、上端部に管材を挟む半円筒形の挟み口を形
成し、中心部に半円筒形の予熱発生部を屈設し、予熱発
生部に近接する両端に半円筒形の加圧形状記憶合金部を
屈設する。 ｄ） 又、加圧形状記憶合金部の先端部分に伸縮材を装
着させた溶接部門を構成し、更に、溶接部門と連成する
溶接部柄を形成し、溶接部柄の一端に締付装置を係着さ
せ、締付装置の一部分に係合孔を具備し、 ｅ） 超音波溶接部門と溶接部門は係止具を介して、管
材を上下から一対に挟扼し、溶接部柄に係着させる締付
装置の一部分に設けた係合孔を、超音波部柄の掛止具に
係合させ、締付装置を駆動させることにより、超音波溶
接部門と溶接部門に押付け加圧を与えるよう構成する。 以上の構成よりなる管材超音波溶接装置。Claims: a) An ultrasonic vibration terminal is formed at an upper end portion, and a semi-cylindrical pinching opening is formed at a lower end portion to sandwich a tube material. B) further comprising an ultrasonic welding section having a function of causing the ultrasonic welding section to resonate with the ultrasonic welding section, and having a hooking tool in a part thereof; c) A semi-cylindrical pinching opening that sandwiches the tube material is formed at the upper end, a semi-cylindrical preheating generating part is bent at the center, and a semi-cylindrical pressurized shape memory alloy part is placed at both ends close to the preheating generating part. Bend. d) In addition, a welding section in which an elastic material is attached to the distal end portion of the pressurized shape memory alloy section is formed, and further, a welding pattern connected to the welding section is formed, and a fastening device is attached to one end of the welding pattern. And e) the ultrasonic welding section and the welding section clamp a pair of pipes from above and below via a fastener to engage the welding pattern. An engaging hole provided in a part of the fastening device to be fastened is engaged with a hook of the ultrasonic pattern, and the fastening device is driven to apply pressing pressure to the ultrasonic welding section and the welding section. The configuration is as follows. A tube material ultrasonic welding apparatus having the above configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001352393A JP2003117667A (en) | 2001-10-15 | 2001-10-15 | Ultrasonic welding equipment of tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001352393A JP2003117667A (en) | 2001-10-15 | 2001-10-15 | Ultrasonic welding equipment of tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003117667A true JP2003117667A (en) | 2003-04-23 |
Family
ID=19164577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001352393A Pending JP2003117667A (en) | 2001-10-15 | 2001-10-15 | Ultrasonic welding equipment of tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003117667A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007253164A (en) * | 2006-03-20 | 2007-10-04 | Denso Corp | Ultrasonic welding method and equipment, and ultrasonically welded tube |
| CN103071882A (en) * | 2013-01-10 | 2013-05-01 | 四川长虹电器股份有限公司 | Fast centering installing and clamping device |
| KR101882688B1 (en) * | 2017-02-01 | 2018-07-27 | 동명대학교산학협력단 | Ultrasonic bonding apparatus |
| CN111391331A (en) * | 2020-02-26 | 2020-07-10 | 神通科技集团股份有限公司 | Glove box ultrasonic welding equipment capable of quickly changing mold |
-
2001
- 2001-10-15 JP JP2001352393A patent/JP2003117667A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007253164A (en) * | 2006-03-20 | 2007-10-04 | Denso Corp | Ultrasonic welding method and equipment, and ultrasonically welded tube |
| JP4650309B2 (en) * | 2006-03-20 | 2011-03-16 | 株式会社デンソー | Ultrasonic bonding method and ultrasonic bonding apparatus |
| CN103071882A (en) * | 2013-01-10 | 2013-05-01 | 四川长虹电器股份有限公司 | Fast centering installing and clamping device |
| KR101882688B1 (en) * | 2017-02-01 | 2018-07-27 | 동명대학교산학협력단 | Ultrasonic bonding apparatus |
| CN111391331A (en) * | 2020-02-26 | 2020-07-10 | 神通科技集团股份有限公司 | Glove box ultrasonic welding equipment capable of quickly changing mold |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3752380A (en) | Vibratory welding apparatus | |
| JP2015509850A (en) | Method of welding parts using low thermal conductivity tool and vibration welder with high mechanical properties and corresponding vibration welder | |
| JP2004174546A (en) | Method of joining metallic member | |
| US7819302B2 (en) | Aluminum end caps ultrasonically welded to end of aluminum tube | |
| JP2003117667A (en) | Ultrasonic welding equipment of tube | |
| US5921460A (en) | Method of soldering materials supported on low-melting substrates | |
| JP2984225B2 (en) | Ultrasonic welding equipment | |
| JP2003300259A (en) | Method for connecting a plurality of plastic films | |
| JP4015069B2 (en) | Linear heater for heat seal device and heat seal device | |
| US20200016685A1 (en) | Method and apparatus to form a workpiece employing vibration welding | |
| JP2004243402A (en) | Metal foil joining method, and metal foil connecting device | |
| JPH1177337A (en) | Method for joining metallic thin sheet | |
| JP4650309B2 (en) | Ultrasonic bonding method and ultrasonic bonding apparatus | |
| JPH10296461A (en) | Ultrasonic vibration welding method | |
| JP2014166646A (en) | Solid-phase welding method for metal workpiece | |
| JP2003320462A (en) | Method for projection welding and projection for resistance welding | |
| KR101386966B1 (en) | A torch for TIG welding machine | |
| JP2005288457A (en) | Ultrasonic joining method for different kinds of metals and ultrasonic joined structure | |
| WO2024048642A1 (en) | Brazing device and method for brazing assembly | |
| KR101012146B1 (en) | Ultrasonic fusioer | |
| JP6957054B1 (en) | Rivet joining method and joining processing equipment | |
| JP7382116B2 (en) | Joining method | |
| JP2004337888A (en) | Method for working reinforcing bar, method for manufacturing anchor bar, and anchor bar | |
| JP4471266B2 (en) | Method for joining metal members | |
| JP2023016355A (en) | Joint method |