JPS5785618A - Forming method for cylindrical workpiece - Google Patents
Forming method for cylindrical workpieceInfo
- Publication number
- JPS5785618A JPS5785618A JP55159429A JP15942980A JPS5785618A JP S5785618 A JPS5785618 A JP S5785618A JP 55159429 A JP55159429 A JP 55159429A JP 15942980 A JP15942980 A JP 15942980A JP S5785618 A JPS5785618 A JP S5785618A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- work
- thickness
- difference
- controlled
- 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 Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To improve accuracy of plate thickness and shape of a thin cylinder after working by detecting the thickness and gap between the mandrel of a work immediately after forming by a roll for final working and controlling the amount of projection and roll speed of the said roll.
CONSTITUTION: The thickness of a work 1 immediately after forming by a roll 43 for final working is detected by a thickness meter 6 and the amount of projection of the roll 43 is controlled by an oil pressure cylinder 123 based on the difference from a set value. Pressure force of other rolls 41, 42 is detected by load cells 121, 122 and the force is controlled to make it equal to that of the roll 43. Next, an imaginary clearance that represents the difference between the outer diameter of the work 1 and a mandrel 2 is calculated from a measured value of a clearance detector 7 provided at the center of rollers 41W43. Relative speed of the roll 43 to the work 1 is controlled by a servo amplifier 84 according to the difference between the imaginary clearance and set value.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55159429A JPS5785618A (en) | 1980-11-14 | 1980-11-14 | Forming method for cylindrical workpiece |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55159429A JPS5785618A (en) | 1980-11-14 | 1980-11-14 | Forming method for cylindrical workpiece |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5785618A true JPS5785618A (en) | 1982-05-28 |
Family
ID=15693544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55159429A Pending JPS5785618A (en) | 1980-11-14 | 1980-11-14 | Forming method for cylindrical workpiece |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5785618A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1348498A2 (en) * | 2002-03-22 | 2003-10-01 | K.K.Endo Seisakusho | Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same |
US7229398B2 (en) | 2002-11-27 | 2007-06-12 | Dymco Limited | Circular-shaped metal structure and method of fabricating the same |
-
1980
- 1980-11-14 JP JP55159429A patent/JPS5785618A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1348498A2 (en) * | 2002-03-22 | 2003-10-01 | K.K.Endo Seisakusho | Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same |
EP1348498A3 (en) * | 2002-03-22 | 2003-12-17 | K.K.Endo Seisakusho | Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same |
US7963016B2 (en) | 2002-03-22 | 2011-06-21 | K.K. Endo Seisakusho | Circular-shaped metal structure, method of fabricating the same, and apparatus for fabricating the same |
US7229398B2 (en) | 2002-11-27 | 2007-06-12 | Dymco Limited | Circular-shaped metal structure and method of fabricating the same |
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