JPS55161520A - Forming method for cavity - Google Patents
Forming method for cavityInfo
- Publication number
- JPS55161520A JPS55161520A JP7095079A JP7095079A JPS55161520A JP S55161520 A JPS55161520 A JP S55161520A JP 7095079 A JP7095079 A JP 7095079A JP 7095079 A JP7095079 A JP 7095079A JP S55161520 A JPS55161520 A JP S55161520A
- Authority
- JP
- Japan
- Prior art keywords
- work
- center part
- thin paper
- cavity
- center
- 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
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To make possible the formation of the cavity without soiling the working apparatus, by interposing thin paper between the work and the center, and by carrying out the pressure welding work.
CONSTITUTION: The work 12 is caught between the chucks 11, 11', and the moving part 1 provided with the center part 5 is brought near the base 9 to which the work 12 is set. Hereupon, the center part 5 is pressure welded to one end face of the work 12 as the thin paper 15 is being interposed between the center part 5 and the work 12. As a result, the specified cavity is formed in one end face of the work 12 by the plastic deformation. The thin paper 15 is disintegrated into fine fibers which act as the lubricant without leaving any indent of fibers on the work 12. By this lubricating action, the abrasion of the center part 5 is restricted, and besides, the pressure welding between the center part 5 and the work 12 is restrained. Next, the moving part 1 is relatively separated from the base 9, and both are returned to each initial position. Hereupon, no tension generates between the center part 5 and the work 12 because of the action of the thin paper 15 as the releasing agent.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7095079A JPS55161520A (en) | 1979-06-05 | 1979-06-05 | Forming method for cavity |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7095079A JPS55161520A (en) | 1979-06-05 | 1979-06-05 | Forming method for cavity |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55161520A true JPS55161520A (en) | 1980-12-16 |
Family
ID=13446285
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7095079A Pending JPS55161520A (en) | 1979-06-05 | 1979-06-05 | Forming method for cavity |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55161520A (en) |
-
1979
- 1979-06-05 JP JP7095079A patent/JPS55161520A/en active Pending
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