JPS6028587B2 - Flash butt welding method - Google Patents
Flash butt welding methodInfo
- Publication number
- JPS6028587B2 JPS6028587B2 JP5465181A JP5465181A JPS6028587B2 JP S6028587 B2 JPS6028587 B2 JP S6028587B2 JP 5465181 A JP5465181 A JP 5465181A JP 5465181 A JP5465181 A JP 5465181A JP S6028587 B2 JPS6028587 B2 JP S6028587B2
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- butt welding
- welding method
- movable electrode
- welded
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/04—Flash butt welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Description
【発明の詳細な説明】
この発明は、圧薮部の品質を向上するようにしたフラッ
シュバット溶接方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a flash butt welding method that improves the quality of a depressed part.
それぞれ電力が供給された二つの被溶接体を接触させ、
発生したアークで被熔接体を加熱熔触させて押圧し各被
熔接体を庄接するフラッシュ溶接は、従来つぎのように
行われていた。Two objects to be welded, each supplied with electric power, are brought into contact,
Flash welding, in which the objects to be welded are heated and melted by a generated arc and pressed to join each object to be welded, has conventionally been performed as follows.
第１図において、１は固定電極、２は可動電極、３は溶
接変圧器で各電極１，２に接続されている。In FIG. 1, 1 is a fixed electrode, 2 is a movable electrode, and 3 is a welding transformer connected to each electrode 1, 2.
４は可動電極２と連結された油圧シリンダ、５は油圧シ
リンダ４と運されたシリンダストッパ、６は油圧シリン
グ４と連結された油圧サ−ボ、７，８はそれぞれ各電極
１，２に取付けられた被溶接体である。4 is a hydraulic cylinder connected to the movable electrode 2, 5 is a cylinder stopper carried with the hydraulic cylinder 4, 6 is a hydraulic servo connected to the hydraulic cylinder 4, and 7 and 8 are attached to each electrode 1 and 2, respectively. This is the object to be welded.
このように構成されたものにおいて、各電極１，２間は
所定の寸法１で、油圧サーボ６の駆動で可動電極２が固
定電極１に向って移動される。In this structure, the distance between each electrode 1 and 2 is a predetermined dimension 1, and the movable electrode 2 is moved toward the fixed electrode 1 by the drive of the hydraulic servo 6.
つぎに第１図によるフラッシュ溶接について説明する。
図の状態で瀦圧サーボ６を所定の方向に駆動すると、油
圧シリンダ４を介して可動電極２が固定電極１の方向に
移動され、両被溶接体７，８の接触でフラッシュが発生
し、これによって各被溶接体７，８の各端部は加熱溶融
され、第２図に示すように、フラッシュ開始点Ｓから時
間の経過とともに両被溶接体７，８を押圧変形させなが
ら可動電極２が移動される。可動電極２の移動が定の距
離すなわち第２図のアプセット点Ｕになると、油圧サー
ボ６により油圧シリンダ４に供給される油圧が急速に高
められ、両被溶接体７，８間を圧接するアブセット工程
に入るとともに、各電極１，２に印加している電圧をし
や断する。これによって、フラッシュ工程で加熱熔融さ
れている両被溶接体７，８は、第２図に示すアプセット
量だけ圧接される。このアプセツト量は、シリンダスト
ツパ５によって油圧シリンダ４が機械的に停止される位
置で決定される。このため、アプセットの最終位置にお
けるアプセット力が零となるので、圧鞍部が冷却される
ときに収縮力などの応力が発生しても、無加圧の状態に
なる。したがって、溶接の信頼性が低下するという欠点
があった。この発明は上記欠点を解消するためになされ
たもので、アプセツトの最終位置で圧接部に発生した応
力の方向に可動電極が追従して動作できるようにしたフ
ラッシュバット溶接方法を提供する。Next, flash welding according to FIG. 1 will be explained.
When the pressure servo 6 is driven in a predetermined direction in the state shown in the figure, the movable electrode 2 is moved in the direction of the fixed electrode 1 via the hydraulic cylinder 4, and a flash is generated due to contact between the two objects to be welded 7 and 8. As a result, each end of each object to be welded 7, 8 is heated and melted, and as shown in FIG. is moved. When the movable electrode 2 moves a certain distance, that is, to the upset point U in FIG. At the beginning of the process, the voltage applied to each electrode 1, 2 is cut off. As a result, both objects 7 and 8, which have been heated and melted in the flash process, are pressed together by the amount of upset shown in FIG. 2. This offset amount is determined by the position at which the hydraulic cylinder 4 is mechanically stopped by the cylinder stopper 5. Therefore, the upsetting force at the final position of the upsetting becomes zero, so even if stress such as contractile force is generated when the pressure saddle section is cooled, the pressure-free state is maintained. Therefore, there was a drawback that the reliability of welding was reduced. The present invention has been made to solve the above-mentioned drawbacks, and provides a flash butt welding method in which a movable electrode can follow the direction of the stress generated in the pressure welding part at the final position of the upset.
以下図に基づいて説明する。第３図において、１〜４、
６〜８は従来と同様で、可動電極２は油圧シリンダ４で
固定電極１の方向に駆動される。第３図によるフラッシ
ュバット溶接は、第４図に示すように、フラッシュ工程
を経てＵ点からアプセット工程に移るときに電圧がしや
断され、油圧シリンダ４の駆動力で可動電極２を固定電
極１の方向に押圧する押圧力で両被溶接材７，８の圧接
がなされ、溶融部の変形で圧嬢部の冷却が行なわれる。
このとき、圧綾部に冷却による収応力が発生すると、こ
の応力の方向に可動電極２が移動し、圧嬢部に押圧力が
加えられる。この発明によれば、アプセットの最終位置
で圧鞍部に発生した応力の方向に可動電極を追従して動
作させるようにしたので、圧嬢部の品質を向上する。This will be explained below based on the figures. In Figure 3, 1 to 4,
6 to 8 are similar to the conventional one, and the movable electrode 2 is driven in the direction of the fixed electrode 1 by the hydraulic cylinder 4. As shown in FIG. 4, in the flash butt welding shown in FIG. The two materials to be welded 7 and 8 are pressed together by the pressing force in one direction, and the pressed portion is cooled by deformation of the molten portion.
At this time, when an accommodation stress is generated in the compression part due to cooling, the movable electrode 2 moves in the direction of this stress, and a pressing force is applied to the compression part. According to this invention, since the movable electrode is operated to follow the direction of the stress generated in the indentation section at the final position of upset, the quality of the indentation section is improved.
第１図は従釆の溶接装置の正面図、第２図は第１図の動
作を説明する説明図、第３図は発明の実施例を示す正面
図、第４図は第３図の動作を説明する説明図である。
図において、１は固定電極、２は可動電極、７，８はそ
れぞれ被溶接体である。なお各図中同一符号は同一又は
相当部分を示す。第１図
第２図
第３図
第４図Figure 1 is a front view of the secondary welding device, Figure 2 is an explanatory diagram explaining the operation of Figure 1, Figure 3 is a front view of an embodiment of the invention, and Figure 4 is the operation of Figure 3. FIG. In the figure, 1 is a fixed electrode, 2 is a movable electrode, and 7 and 8 are objects to be welded. Note that the same reference numerals in each figure indicate the same or equivalent parts. Figure 1 Figure 2 Figure 3 Figure 4
Claims (1)
体を所定のアプセツト量で圧接してフラツシユ溶接する
フラツシユバツト溶接方法において、上記可動電極が上
記アプセツト量を移動した後、上記可動電極を上記固定
電極の方向に移動させることを特徴とするフラツシユバ
ツト溶接方法。1. In a flash butt welding method in which objects to be welded, which are held by a fixed electrode and a movable electrode, are pressed together by a predetermined upset amount and are flash welded, after the movable electrode has moved the above upset amount, the movable electrode is moved to the fixed position. A flash butt welding method characterized by moving in the direction of the electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5465181A JPS6028587B2 (en) | 1981-04-10 | 1981-04-10 | Flash butt welding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5465181A JPS6028587B2 (en) | 1981-04-10 | 1981-04-10 | Flash butt welding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57168786A JPS57168786A (en) | 1982-10-18 |
| JPS6028587B2 true JPS6028587B2 (en) | 1985-07-05 |
Family
ID=12976679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5465181A Expired JPS6028587B2 (en) | 1981-04-10 | 1981-04-10 | Flash butt welding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6028587B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101350649B1 (en) * | 2012-02-29 | 2014-01-13 | 최혜영 | Apple ice wine using concentrated juice and making process thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT6690U3 (en) * | 2003-11-06 | 2004-11-25 | Plasser Bahnbaumasch Franz | PROCESS FOR WELDING RAILS OF A TRAIL |
-
1981
- 1981-04-10 JP JP5465181A patent/JPS6028587B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101350649B1 (en) * | 2012-02-29 | 2014-01-13 | 최혜영 | Apple ice wine using concentrated juice and making process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57168786A (en) | 1982-10-18 |
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