JPS5461066A - Flange working method for hole portion of sheet material - Google Patents
Flange working method for hole portion of sheet materialInfo
- Publication number
- JPS5461066A JPS5461066A JP12753977A JP12753977A JPS5461066A JP S5461066 A JPS5461066 A JP S5461066A JP 12753977 A JP12753977 A JP 12753977A JP 12753977 A JP12753977 A JP 12753977A JP S5461066 A JPS5461066 A JP S5461066A
- Authority
- JP
- Japan
- Prior art keywords
- sheet material
- hole
- flange
- roller
- mandrel
- 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.)
- Granted
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
Abstract
PURPOSE: To give the flange work to the hole portion of sheet material at high accuracy in a short time, by inserting the expander to the punched hole on purpose to plastically work the surface of the hole so as to form the flange.
CONSTITUTION: When a power is supplied to the expander 3 under a condition that the sheet material 1 is unset, the mandrel 4 and the roller 5 rotate respectively in the arrowed direction. Then, the sheet material 1, in which a lower hole 2 is bored, is inserted from the small diameter side of the mandrel 4 into the rotating expander 3; hereby, since the axis of the roller 5 is tilting against the axis of the mandrel 4, the inner surface of the hole 2 of sheet material 1 is gradually expanded by the roller 5, and forms the flange; finally, the sheet material 1 comes out of the right end of the roller 5, and the work is completed. According to this method, the hardness of neighborhood of the hole is greatly improved, so that the mechanical strength and the resistance to wear of the inner surface of the flange are also improved
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12753977A JPS6033570B2 (en) | 1977-10-26 | 1977-10-26 | Flange processing method for plate holes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12753977A JPS6033570B2 (en) | 1977-10-26 | 1977-10-26 | Flange processing method for plate holes |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5461066A true JPS5461066A (en) | 1979-05-17 |
JPS6033570B2 JPS6033570B2 (en) | 1985-08-03 |
Family
ID=14962506
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12753977A Expired JPS6033570B2 (en) | 1977-10-26 | 1977-10-26 | Flange processing method for plate holes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6033570B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5813416A (en) * | 1981-07-15 | 1983-01-25 | Hitachi Ltd | Flange working device for hole in plate material |
CN106238539A (en) * | 2016-10-12 | 2016-12-21 | 中国科学院金属研究所 | A kind of device and method in turned-out straight flange hole processed on complex-curved hollow closing part |
-
1977
- 1977-10-26 JP JP12753977A patent/JPS6033570B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5813416A (en) * | 1981-07-15 | 1983-01-25 | Hitachi Ltd | Flange working device for hole in plate material |
JPH0119971B2 (en) * | 1981-07-15 | 1989-04-13 | Hitachi Ltd | |
CN106238539A (en) * | 2016-10-12 | 2016-12-21 | 中国科学院金属研究所 | A kind of device and method in turned-out straight flange hole processed on complex-curved hollow closing part |
Also Published As
Publication number | Publication date |
---|---|
JPS6033570B2 (en) | 1985-08-03 |
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