JPS55109523A - Electromagnetic forming apparatus - Google Patents
Electromagnetic forming apparatusInfo
- Publication number
- JPS55109523A JPS55109523A JP1643379A JP1643379A JPS55109523A JP S55109523 A JPS55109523 A JP S55109523A JP 1643379 A JP1643379 A JP 1643379A JP 1643379 A JP1643379 A JP 1643379A JP S55109523 A JPS55109523 A JP S55109523A
- Authority
- JP
- Japan
- Prior art keywords
- inductance
- coil
- impedance
- coupling
- degree
- 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
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To prevent the fracture of the coil, by detecting the inductance of the coil as it is set to the work to be formed, and by controlling the impact electric power to be supplied.
CONSTITUTION: The discrimination and control circuit 7 detects and discriminates the inductance, that is the impedance, of the coil 3 as it is inserted into the material pipe 1 to be formed. The inductance of the coil 3 varies with the degree of coupling between the forming coil 3 and the material pipe 1; if the degree of coupling is small, the inductance is small, and if the degree of coupling is large, the inductance is large. The value of inductance is discriminated by the circuit 7 which then controls the discharge energy of the capacitor 5; if the detected impedance is smaller than the reference value, the charging switch 8 is broken according to the output of discrimination. That is, the circuit 7 produces the output "1" for the impedance higher than the reference value, and the output "0" for the impedance lower than the reference value.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1643379A JPS55109523A (en) | 1979-02-15 | 1979-02-15 | Electromagnetic forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1643379A JPS55109523A (en) | 1979-02-15 | 1979-02-15 | Electromagnetic forming apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55109523A true JPS55109523A (en) | 1980-08-23 |
| JPS6247611B2 JPS6247611B2 (en) | 1987-10-08 |
Family
ID=11916090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1643379A Granted JPS55109523A (en) | 1979-02-15 | 1979-02-15 | Electromagnetic forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55109523A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4598464A (en) * | 1983-01-24 | 1986-07-08 | Ateliers De Constructions Electriques De Charleroi | Process for the manufacture of collectors of direct current electric machines |
| CN103480709A (en) * | 2013-09-09 | 2014-01-01 | 大连理工大学 | Pulse electromagnetic device for assisting line heating |
| CN113245431A (en) * | 2021-06-15 | 2021-08-13 | 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) | Magnetic collector and electromagnetic pulse forming device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3017536U (en) * | 1995-04-28 | 1995-10-31 | 直義 嘉山 | Building structures and packing used for them |
-
1979
- 1979-02-15 JP JP1643379A patent/JPS55109523A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4598464A (en) * | 1983-01-24 | 1986-07-08 | Ateliers De Constructions Electriques De Charleroi | Process for the manufacture of collectors of direct current electric machines |
| CN103480709A (en) * | 2013-09-09 | 2014-01-01 | 大连理工大学 | Pulse electromagnetic device for assisting line heating |
| CN113245431A (en) * | 2021-06-15 | 2021-08-13 | 北京理工大学深圳汽车研究院(电动车辆国家工程实验室深圳研究院) | Magnetic collector and electromagnetic pulse forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6247611B2 (en) | 1987-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW364218B (en) | Method of charging a secondary battery and apparatus for the same | |
| JPS5786569A (en) | Ignition detective circuit | |
| EA199900818A1 (en) | METHOD OF ELECTROCHEMICAL PREPARATION | |
| MY120430A (en) | Battery protection circuit | |
| JPS55109523A (en) | Electromagnetic forming apparatus | |
| JPS53109154A (en) | Higher harmonic remover | |
| JPS55164428A (en) | System for electric discharge machining | |
| JPS54119195A (en) | Electric discharge processing device | |
| JPS54115975A (en) | Ignition device for oil burner | |
| JPS56119318A (en) | Electric discharge machining apparatus | |
| JPS5731477A (en) | Pulse arc welding machine | |
| JPS5680613A (en) | Starting up method of waste treating arc furnace | |
| JPS5478573A (en) | Power consumption control method for electric dust collector | |
| JPS56100234A (en) | Cooking utensil | |
| JPS5513923A (en) | Capacitor operated welding transformer for resistance welding machine | |
| JPS564064A (en) | Disconnection monitoring apparatus for heater | |
| JPS55145171A (en) | Arc-breaking method of glow discharge device using high frequency electric supply source and its apparatus | |
| JPS5719154A (en) | Device equipped with high-frequency contactless arc igniting mechanism | |
| JPS5572660A (en) | Condenser discharge type igniter provided with overrevolution preventive means | |
| JPS6485577A (en) | Power supply for sputter ion pump | |
| JPS5660919A (en) | Control method of high-voltage generator | |
| JPS54155142A (en) | Capacitor type resistance welding machine | |
| JPS54106819A (en) | Generating control system | |
| JPS54124231A (en) | Inverter starting method | |
| JPS54113551A (en) | High frequency defreezing device |