JPS566742A - Swaging method - Google Patents
Swaging methodInfo
- Publication number
- JPS566742A JPS566742A JP8024879A JP8024879A JPS566742A JP S566742 A JPS566742 A JP S566742A JP 8024879 A JP8024879 A JP 8024879A JP 8024879 A JP8024879 A JP 8024879A JP S566742 A JPS566742 A JP S566742A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- thickness
- ratio
- swaging
- gas
- 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
- Forging (AREA)
Abstract
PURPOSE: To enable the precision working of a pipe which has hitherto been difficult to work, with good roughness of the inside surface, by swaging the pipe of ≤0.08 in the ratio between the thickness and outside diameter of the pipe by filling gas or oil in its inside hole.
CONSTITUTION: In the method of swaging a pipe of ≤0.08 in the ratio t/D between the thickness (t) and outside diameter Dϕ of the pipe which has hitherto been difficult to swage, both ends 2, 2' of the pipe 1 are crushed to 2a, 2a' and dry gas or gas or air or the fluid 4 such as water or oil is filled in its inside hole 3, whereby said pipe is swaged. As a result, the roughness of the inside surface is made good by the fluid; moreover, working to a uniform thickness may be done and the reduction ratio may be made higher.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8024879A JPS566742A (en) | 1979-06-27 | 1979-06-27 | Swaging method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8024879A JPS566742A (en) | 1979-06-27 | 1979-06-27 | Swaging method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS566742A true JPS566742A (en) | 1981-01-23 |
Family
ID=13713013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8024879A Pending JPS566742A (en) | 1979-06-27 | 1979-06-27 | Swaging method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS566742A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60121028A (en) * | 1983-12-02 | 1985-06-28 | Ngk Spark Plug Co Ltd | Method of swaging of heat generating tube of sheath glow plug |
-
1979
- 1979-06-27 JP JP8024879A patent/JPS566742A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60121028A (en) * | 1983-12-02 | 1985-06-28 | Ngk Spark Plug Co Ltd | Method of swaging of heat generating tube of sheath glow plug |
JPH0347940B2 (en) * | 1983-12-02 | 1991-07-22 | Ngk Spark Plug Co |
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