JPS5677088A - Manufacture of complex electric contact point by cold pressure welding - Google Patents
Manufacture of complex electric contact point by cold pressure weldingInfo
- Publication number
- JPS5677088A JPS5677088A JP15422979A JP15422979A JPS5677088A JP S5677088 A JPS5677088 A JP S5677088A JP 15422979 A JP15422979 A JP 15422979A JP 15422979 A JP15422979 A JP 15422979A JP S5677088 A JPS5677088 A JP S5677088A
- Authority
- JP
- Japan
- Prior art keywords
- diameter
- joined
- short wire
- contact point
- projected
- 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
Abstract
PURPOSE: To make it possible to obtain a satisfactory joined face by reducing the diameter of a butt surface of a wire to be joined by pressing to a smaller diameter than the diameter of the wire so that the pressure may be concentrated to said joining surface of reduced diameter.
CONSTITUTION: Projected part 1a is formed at the sheared part of short wire material 1 of a base metal, and, on the other hand, another projected part 1b is also formed at the sheared part of short wire material of a precious metal. Then both short wire materials 1 and 2 are put into metallic mold 5 having a tubular cavity, so that free face of projected parts 1a and 1b collide with each other. Then both short wire materials are pressed from the outside, respectively, so that projected parts 1a and 1b may expand and fill up the cavity. The joined contact point thus obtained has a contact part of the same diameter having an adhered face and shank part. By the procedure mentioned above, many complex contact points can be obtained with good adhering faces.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15422979A JPS5677088A (en) | 1979-11-30 | 1979-11-30 | Manufacture of complex electric contact point by cold pressure welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15422979A JPS5677088A (en) | 1979-11-30 | 1979-11-30 | Manufacture of complex electric contact point by cold pressure welding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5677088A true JPS5677088A (en) | 1981-06-25 |
| JPS6252676B2 JPS6252676B2 (en) | 1987-11-06 |
Family
ID=15579665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15422979A Granted JPS5677088A (en) | 1979-11-30 | 1979-11-30 | Manufacture of complex electric contact point by cold pressure welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5677088A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017051603A1 (en) * | 2015-09-25 | 2017-03-30 | 株式会社日立産機システム | Metal bonding wire, manufacturing method for same, transformer and rotating machine having same, and die |
-
1979
- 1979-11-30 JP JP15422979A patent/JPS5677088A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017051603A1 (en) * | 2015-09-25 | 2017-03-30 | 株式会社日立産機システム | Metal bonding wire, manufacturing method for same, transformer and rotating machine having same, and die |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6252676B2 (en) | 1987-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS5317265A (en) | Tight adhesion method between metallic part and insulating material | |
| JPS5677088A (en) | Manufacture of complex electric contact point by cold pressure welding | |
| JPS5428744A (en) | Process for joining aluminum, aluminum alloy and steel | |
| JPS57146444A (en) | Joining structure of two metallic members | |
| JPS5756124A (en) | Forming methof for flanged outer ring in uniform-speed universal joint | |
| JPS5689374A (en) | Joining method of sintered metal | |
| JPS57149081A (en) | Ultrasonic welding device | |
| JPS54128473A (en) | Jointing method | |
| JPS5441232A (en) | Metallic material covering method | |
| DE3563461D1 (en) | Lithium base ternary alloy with a high melting point, process for manufacturing the alloy and application of the alloy | |
| JPS6418245A (en) | Ceramic substrate having metal pin and its manufacture | |
| JPS5368160A (en) | Electron tube cathode and its manufacture | |
| JPS5768289A (en) | Arc welding method | |
| JPS53110081A (en) | Method of manufacturing composite strip | |
| JPS57134229A (en) | Manufacture of joint | |
| JPS5586684A (en) | Bonding method of metal | |
| JPS57139485A (en) | Connecting method of metallic material | |
| JPS53142358A (en) | Manufacture of metallic composite wire | |
| JPS555140A (en) | Partial insert fabrication method | |
| JPH067968A (en) | Joining method for billets | |
| JPS5336721A (en) | Metal pipe having grooves on both surfaces and its preparation method | |
| JPS5458654A (en) | Electric welding method for dissimiliar metal | |
| JPS5214140A (en) | Preparation method of the central electrode for the spark plug | |
| JPS54100905A (en) | Preparation of sintered composite body | |
| JPS56154271A (en) | Production of center electrode of ignition plug |