JPS5758926A - Method and apparatus for forming cylindrical work - Google Patents
Method and apparatus for forming cylindrical workInfo
- Publication number
- JPS5758926A JPS5758926A JP55133047A JP13304780A JPS5758926A JP S5758926 A JPS5758926 A JP S5758926A JP 55133047 A JP55133047 A JP 55133047A JP 13304780 A JP13304780 A JP 13304780A JP S5758926 A JPS5758926 A JP S5758926A
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- diameter
- working part
- working
- workpiece
- 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
- Metal Extraction Processes (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To obtain a highly accurate thin cylinder stably in drawing system tube spinning by drawing a cylindrical material made smaller in diameter than the outer diameter of the meandrel in axial direction of the mandrel and expanding, and thereby reducing floating up of the workpiece.
CONSTITUTION: A deep drawing part 1b smaller in diameter than a spinned part 1a is formed in a mandrel 1, and 1≥ drawing rolls 10 are arranged around it rotatably. The workpiece 4 is set to the andrel 1 and deep-drawn by the pressure of a roll 10 at a working part 1b in front (oposite to the direction of drawing) of a working part 1a. After that, it is expanded to the mandrel diameter of the working part 1a and undergoes shear spinning. In consequence, the material 4 flows along the mandrel as expanding is made after drawing, and the gap between the material 4 and the working part 1a can be made to almost zero. That is, the gap can be kept constant even if the accuracy of the inner diameter of previous working or round- ness is not sufficient.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55133047A JPS5758926A (en) | 1980-09-26 | 1980-09-26 | Method and apparatus for forming cylindrical work |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55133047A JPS5758926A (en) | 1980-09-26 | 1980-09-26 | Method and apparatus for forming cylindrical work |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5758926A true JPS5758926A (en) | 1982-04-09 |
Family
ID=15095563
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55133047A Pending JPS5758926A (en) | 1980-09-26 | 1980-09-26 | Method and apparatus for forming cylindrical work |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5758926A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007325420A (en) * | 2006-06-01 | 2007-12-13 | Chugoku Electric Power Co Inc:The | Rotary ivy-like plant entwinement prevention apparatus |
JP2008012549A (en) * | 2006-07-04 | 2008-01-24 | Nissan Motor Co Ltd | Apparatus and method of working fine shape, and sliding member |
JP2012245551A (en) * | 2011-05-30 | 2012-12-13 | Chuo Motor Wheel Co Ltd | Method for forming rim |
-
1980
- 1980-09-26 JP JP55133047A patent/JPS5758926A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007325420A (en) * | 2006-06-01 | 2007-12-13 | Chugoku Electric Power Co Inc:The | Rotary ivy-like plant entwinement prevention apparatus |
JP2008012549A (en) * | 2006-07-04 | 2008-01-24 | Nissan Motor Co Ltd | Apparatus and method of working fine shape, and sliding member |
JP2012245551A (en) * | 2011-05-30 | 2012-12-13 | Chuo Motor Wheel Co Ltd | Method for forming rim |
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