JPS5964125A - Pipe cutting method by electromagnetic force - Google Patents
Pipe cutting method by electromagnetic forceInfo
- Publication number
- JPS5964125A JPS5964125A JP57174120A JP17412082A JPS5964125A JP S5964125 A JPS5964125 A JP S5964125A JP 57174120 A JP57174120 A JP 57174120A JP 17412082 A JP17412082 A JP 17412082A JP S5964125 A JPS5964125 A JP S5964125A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- cutting
- coil
- dies
- cut
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/14—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces applying magnetic forces
Abstract
Description
【発明の詳細な説明】
本発明は、電磁力によシバイブを切断する方法に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of cutting a shivive using electromagnetic force.
電磁力を利用した街繋加工即ち電磁成形は、液中放雷、
成形や１３発成形などと共に高エネルギ速度加工法と呼
ばれ、極めて何時間に加工エネルギが投入されて数百１
ＬＢｅｃ以内に加工が終了するだけでなく、高精度加工
、袢合加に、低コスト加工（特に多品種少量生産）等に
適するという特徴を備えている。さらに、電磁成形に１
よ、非接触で被加工物に圧力を伝えることができるとい
う特性が＋、’、−１ｊ 自動化も可能な加工法であ
る。Machining processing that uses electromagnetic force, that is, electromagnetic forming, is a process that uses liquid lightning,
Along with molding and 13-shot molding, it is called a high energy speed machining method, and the machining energy is input in extremely many hours, resulting in hundreds of milliseconds.
Not only can machining be completed within LBec, but it is also suitable for high-precision machining, joining, and low-cost machining (particularly high-mix, low-volume production). In addition, 1 for electromagnetic forming.
The characteristic of being able to transmit pressure to the workpiece without contact is +, ', -1j It is a processing method that can be automated.
・１
番の結果、その欠点をｍ極的に活用してパイプを瞬時に
、Ｌかも比較的正確に切断できることを俯めた。・As a result of No. 1, I expected that I could take advantage of this shortcoming and cut the pipe instantaneously and relatively accurately.
本発明をよ、このような知見に基づいて電、磁力によシ
バイブを切断する方法を提供しようとするものであり、
切断すべきパイプにおける切断位置に切断用コイルを内
挿し、このパイプの外（ｒｉｌｌ Ｋ 、切断線に沿い
一対の鋭利な肩部をもった型を配設し、切断用コイルに
電気的エネルギを供給してパイプを膨出変形させるに際
し、その電気的エネルギ量を、型の肩部に対向するパイ
プの切断線に沿って切断に必要な応力が発生する範囲内
釦設定し、而して切断用コイルとパイプとの間に生じる
電磁力ルエを？続し、この切断用コイル１に２次コイル
とみなされる切断すべきパイプ２が設値される。Based on this knowledge, the present invention aims to provide a method for cutting shivive using electric or magnetic force.
A cutting coil is inserted at the cutting position in the pipe to be cut, a mold with a pair of sharp shoulders is placed outside the pipe along the cutting line, and electrical energy is applied to the cutting coil. When supplying the pipe to bulge and deform it, set the amount of electrical energy within the range that generates the stress necessary for cutting along the cutting line of the pipe facing the shoulder of the mold, and then cut the pipe. The electromagnetic force generated between the cutting coil and the pipe is connected, and the pipe 2 to be cut, which is regarded as a secondary coil, is set to the cutting coil 1.
なお、図中、ＲＩＬ、、Ｒ２Ｌ２、及びＲ，Ｌ、は、そ
れぞれ切断用コイル１、パイプ２、及び切断用コイル１
を除いた回路のインピーダンスを表わしている。In addition, in the figure, RIL, R2L2, and R, L are cutting coil 1, pipe 2, and cutting coil 1, respectively.
It represents the impedance of the circuit excluding .
また、３けギヤップスイッチ、４は接地スイッチをそれ
ぞれ示している。Further, 3 indicates a gap switch, and 4 indicates a ground switch.
第２図は、上目己マＩ施装置のＰ９休的な構成例を示す
もので、コイルスタンド５上の４’Ｊ） Ｆ（ｒ用コイ
ル１にパイプ２を挿嵌すると共恍、パイプ２の外（Ｉｌ
ｌに、雷、気４′Ｉ（抗、じん性、ヤング率が大きい材
料で作製した一対の型６ａ、６ｂをスベーザ８を介して
配設しせておくこともできるが、スベーザ８の内側空間
を大気に開放するように、支柱状のスベーザを用い、外
型９を省略することもできる。Fig. 2 shows an example of the P9 suspension configuration of the upper-mesh machining device. Outside of 2 (Il
A pair of molds 6a and 6b made of a material with high resistance, toughness, and Young's modulus can be placed in the spacer 8 through the spacer 8; In order to open the space to the atmosphere, it is also possible to use a pillar-like spacer and omit the outer mold 9.
上記構成を有する装置は、電磁成形と同様の原理に基づ
いてパイプの切断を行うものである。従りて、コンデン
サＣＫ蓄えた電気的エネルギを７次コイルとしての切断
用コイル１に供給すると、パイプ２が２次コイルとなっ
てそれに誘導電流が生じ、磁界の変化に対応してコイル
１とパイプ２との間に反発力が生じ、パイプ２の切断個
所が一対の型６ｇ 、 ６６０間に膨出し、パイプ２が
第≠図に示すように切断される。The apparatus having the above configuration cuts pipes based on the same principle as electromagnetic forming. Therefore, when the electrical energy stored in the capacitor CK is supplied to the cutting coil 1 as the seventh coil, the pipe 2 becomes a secondary coil and an induced current is generated in the coil 1 and the coil 1 in response to the change in the magnetic field. A repulsive force is generated between the pipe 2 and the pipe 2, and the cut portion of the pipe 2 bulges between the pair of molds 6g and 660, and the pipe 2 is cut as shown in the figure.
一′範囲によって決められる。即ち、型間用ＭＡ ／が
小さい場合には、切断のために非常に大きな力が必要と
なるため、充電エネルギが不足して切断できないという
事態が生じる。この場合においても、コンデンサＣＫ蓄
える充電エネルギを増大すれば切断回前であるが、その
ためにはコイル１の耐久性（機械的耐久性及び電気的絶
縁性）も増大しなければならず、而して、コイルの耐久
性の増大釦は限度があるため、実際上、ある限度より小
さい型間用Ｎｔでパイプ２をＬＴＩ断するのけ不可能で
ある。Determined by the 1' range. That is, when the inter-mold MA / is small, a very large force is required for cutting, and a situation arises in which charging energy is insufficient and cutting is not possible. In this case as well, if the charging energy stored in the capacitor CK is increased, the number of disconnections can be reduced, but in order to do so, the durability (mechanical durability and electrical insulation) of the coil 1 must also be increased. However, since the coil durability increasing button has a limit, it is actually impossible to LTI cut the pipe 2 with Nt between molds smaller than a certain limit.
また、上ｎＣとをよ逆に、ｗ１間距Ｉ！ｌｆ ｌが大き
い場合には、パイプ２が膨出変形して切断されない。こ
の′Ｉ！％において、充電エネルギをさらに増加すれば
、ダクタンス１：’（、２／ＩＴＴのものを用い、電源
と成形用コイル１とを結ぶケーブルとして、耐圧４Ｑ
］ｃＶ 、インダクタンス０．１６μＨ／Ｗ、、、直流
抵抗２ｔｎΩ／ｍのものを用いた。さらに、第−図及び
第３図に示した型をそれぞれ用い、型間距離ｌを２〜６
０門の間で窄化させた。その結果は第５図及び第を図に
示される。Also, reversing the upper nC, the distance between w1 I! If lf l is large, the pipe 2 will bulge and deform and will not be cut. This 'I! %, if the charging energy is further increased, a cable with a ductance of 1:'(, 2/ITT is used, and a withstand voltage of 4Q is used as the cable connecting the power supply and the forming coil 1.
] cV, an inductance of 0.16 μH/W, and a DC resistance of 2 tnΩ/m. Furthermore, using the molds shown in Fig. 3 and Fig. 3, the distance l between the molds was set to 2 to 6.
It was narrowed between 0 gates. The results are shown in FIGS.
第５図及び第２図は、パイプ２を切断線に沿って一対の
型６ａ 、 ６ｂで拘束し、型間距離ｌを変えて行った
結果を示すもので、第５図は充電エネルギと直径増加率
との関係を、＠を図は充電エネルギと張出し部の立ち上
り角度との関係をそれぞれ示何によシバイブが破］Ｄす
ることもあったが、ｌ＝ＧＯｍｍとした場合には３．０
ｋＪＧＣおいてパイプ２が破損した。Figures 5 and 2 show the results obtained by restraining the pipe 2 along the cutting line with a pair of molds 6a and 6b and varying the distance l between the molds. The figure shows the relationship between the charging energy and the rising angle of the overhang, respectively.There was a case where Shivibe was broken]D, but when l=GOmm, 3. 0
Pipe 2 was damaged at kJGC.
このように本発明の方法によれば、従来から存する電磁
成形の装置と鋭利な肩部をもった型を使ることかできる
。Thus, according to the method of the present invention, conventional electromagnetic forming equipment and molds with sharp shoulders can be used.
第１図をよ本発明の実施装貿の等価回路図、第２図はそ
の実施装釘の構成例を示す部分切欠斜視図、第３図はそ
の型の部分断面図、第７図はパイプの切断状態を示す正
面図、第５図及び第２図は木発第３図
Ｎ璽
１３５−
第５図
第６図
危ｔｘ−和し〜（ＫＪ）Fig. 1 is an equivalent circuit diagram of an implementation of the present invention, Fig. 2 is a partially cutaway perspective view showing an example of the structure of the nail for implementation, Fig. 3 is a partial sectional view of the type, and Fig. 7 is a diagram of the pipe. The front view, Figure 5 and Figure 2 show the cut state, and Figure 5 and Figure 2 are from Kibo.
Claims (1)
を内挿し、このパイプの外側に、切断線に沿い一対の鋭
利な肩部をもった型を配設し、切」三コイルに’ＦＩｆ
気的エネルギを供給して イブを変形させるに際し、そ
の電気的エネルギ匍を１、 肩部に対向するパイプの切
断線に沿って切断中 ４１ 顛必要な応力が発生する範囲内に設定し、而して：ｌ扁
’［用コイルとパイプとの間に生じる電磁力によ）・
１ ｂ”、’、；＜イブを切断することを特徴とする電磁力
によるパイプの切断方法。[Claims] 1. A cutting coil is inserted into the cutting position of the pipe to be cut, and a die with a pair of sharp shoulders is placed outside the pipe along the cutting line. 'FIf on three coils
When supplying electrical energy to deform the eve, the electrical energy is set within a range that generates the necessary stress during cutting along the cutting line of the pipe facing the shoulder. ：l-bian' [due to the electromagnetic force generated between the coil and the pipe]・
1. A method for cutting a pipe using electromagnetic force, which is characterized by cutting a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57174120A JPS5964125A (en) | 1982-10-01 | 1982-10-01 | Pipe cutting method by electromagnetic force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57174120A JPS5964125A (en) | 1982-10-01 | 1982-10-01 | Pipe cutting method by electromagnetic force |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5964125A true JPS5964125A (en) | 1984-04-12 |
| JPS6140488B2 JPS6140488B2 (en) | 1986-09-09 |
Family
ID=15972987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57174120A Granted JPS5964125A (en) | 1982-10-01 | 1982-10-01 | Pipe cutting method by electromagnetic force |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5964125A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004028720A1 (en) * | 2002-09-27 | 2004-04-08 | Kabushiki Kaisha Kobe Seiko Sho | Process for producing tubular ring with beads and die for use therein |
| US6751994B2 (en) | 2002-05-28 | 2004-06-22 | Magna International Inc. | Method and apparatus for forming a structural member |
-
1982
- 1982-10-01 JP JP57174120A patent/JPS5964125A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6751994B2 (en) | 2002-05-28 | 2004-06-22 | Magna International Inc. | Method and apparatus for forming a structural member |
| WO2004028720A1 (en) * | 2002-09-27 | 2004-04-08 | Kabushiki Kaisha Kobe Seiko Sho | Process for producing tubular ring with beads and die for use therein |
| US7487655B2 (en) | 2002-09-27 | 2009-02-10 | Kobe Steel, Ltd | Process for producing tubular ring with beads and die for use therein |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6140488B2 (en) | 1986-09-09 |
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