JPS61296925A - Forming method for precise cylinder - Google Patents
Forming method for precise cylinderInfo
- Publication number
- JPS61296925A JPS61296925A JP13881485A JP13881485A JPS61296925A JP S61296925 A JPS61296925 A JP S61296925A JP 13881485 A JP13881485 A JP 13881485A JP 13881485 A JP13881485 A JP 13881485A JP S61296925 A JPS61296925 A JP S61296925A
- Authority
- JP
- Japan
- Prior art keywords
- cylindrical body
- shape
- joining parts
- cylindrical
- outer side
- 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
- 238000005452 bending Methods 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 1
- 230000002093 peripheral Effects 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
Abstract
PURPOSE: To form a cylinder in precise cylindrical shape by shrinking the cylindrical body obtd. by bending a short sheet and by expanding in cylindrical shape the cylindrical body after bending both joining parts to the inner side and welding said joining parts.
CONSTITUTION: The cylindrical body 6 in the shape of its both end parts being bent to the outer side more than the center part of the outer side face 6a and the bend starting part 7 and bend finishing part 8 of both joining parts being slightly expanded to the outer side as well as obtd. by passing a short sheet 5 in the gas of the driving rolls 1, 2, 3 and adjusting roll 4 of a roll forming machine. Said cylindrical body 6 is then shrinked with its compression by sliding divided dies 10a, 10b in the arrow mark radial direction and made in cylindrical shape. Both joining parts 7, 8 are made in flat shape, etc. and in the shape recessed to the inner side by the pressing member 11 fitted to the recessed part 10c formed on the inner peripheral wall of the divided die 10a of one part moreover. The seam part 9 of both joining part 7, 8 in said shape is then welded over the whole length. Thereafter the cylindrical body 6 is fitted to the outer periphery of a segment 15, a cone 16 is pushed in along the inner side slope face 15a of the segment 15 and the cylindrical body 6 is expanded.
COPYRIGHT: (C)1986,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13881485A JPS61296925A (en) | 1985-06-24 | 1985-06-24 | Forming method for precise cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13881485A JPS61296925A (en) | 1985-06-24 | 1985-06-24 | Forming method for precise cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61296925A true JPS61296925A (en) | 1986-12-27 |
Family
ID=15230865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13881485A Pending JPS61296925A (en) | 1985-06-24 | 1985-06-24 | Forming method for precise cylinder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61296925A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010184808A (en) * | 2009-02-13 | 2010-08-26 | Seiko Epson Corp | Method of manufacturing carrier roller, carrier roller, carrying unit and printer |
| JP2014151359A (en) * | 2013-02-13 | 2014-08-25 | Chuo Spring Co Ltd | Method of manufacturing annular member |
| JP2018103231A (en) * | 2016-12-27 | 2018-07-05 | 株式会社富士機械工作所 | Shell manufacturing apparatus and shell manufacturing method |
| US11183373B2 (en) | 2017-10-11 | 2021-11-23 | Honeywell International Inc. | Multi-patterned sputter traps and methods of making |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55156618A (en) * | 1979-05-22 | 1980-12-05 | Nippon Kokan Kk <Nkk> | Manufacture of thick-walled steel pipe |
| JPS55156619A (en) * | 1979-05-22 | 1980-12-05 | Nippon Kokan Kk <Nkk> | Manufacture of thick-walled steel pipe |
-
1985
- 1985-06-24 JP JP13881485A patent/JPS61296925A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55156618A (en) * | 1979-05-22 | 1980-12-05 | Nippon Kokan Kk <Nkk> | Manufacture of thick-walled steel pipe |
| JPS55156619A (en) * | 1979-05-22 | 1980-12-05 | Nippon Kokan Kk <Nkk> | Manufacture of thick-walled steel pipe |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010184808A (en) * | 2009-02-13 | 2010-08-26 | Seiko Epson Corp | Method of manufacturing carrier roller, carrier roller, carrying unit and printer |
| JP2014151359A (en) * | 2013-02-13 | 2014-08-25 | Chuo Spring Co Ltd | Method of manufacturing annular member |
| JP2018103231A (en) * | 2016-12-27 | 2018-07-05 | 株式会社富士機械工作所 | Shell manufacturing apparatus and shell manufacturing method |
| US11183373B2 (en) | 2017-10-11 | 2021-11-23 | Honeywell International Inc. | Multi-patterned sputter traps and methods of making |
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