JPS579536A - Chamfering or rounding method and die used in said method - Google Patents
Chamfering or rounding method and die used in said methodInfo
- Publication number
- JPS579536A JPS579536A JP8210580A JP8210580A JPS579536A JP S579536 A JPS579536 A JP S579536A JP 8210580 A JP8210580 A JP 8210580A JP 8210580 A JP8210580 A JP 8210580A JP S579536 A JPS579536 A JP S579536A
- Authority
- JP
- Japan
- Prior art keywords
- die
- workpiece
- groove
- steel pipes
- tapered
- 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
- Forging (AREA)
Abstract
PURPOSE: To chamfer or round the edge of the end face of a workpiece through plastic working without cutting the same by relatively strongly pressing a die and the cut surface of the workpiece thereby chamfering or rounding the end edge of the workpiece.
CONSTITUTION: This method is adaptable to round steel pipes, square steel pipes, oval steel pipes, channel materials, etc., wherein the end face wall part 1 of a workpiece P is inserted into the groove 2 of a die D, and both are relatively and strongly pressed, whereby the edge of the workpiece P is chamfered or rounded. The die D includes a male die and a female die; the die D which is the male die removes the circumference by end-face cutting in a manner as to leave the part 3 enclosed by the groove 2, thereby forming a tapered bulged circumferential surface 4. The die D which is the female die forms a tapered hole 5 which is larger than the outside diameter of the workpiece P and of which the bottom diameter conforms to the outside diameter of the work piece P. It engraves the groove 2 on the front surface in the depth thereof, thereby forming the tapered surface 6 of the tapered hole 5.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8210580A JPS579536A (en) | 1980-06-19 | 1980-06-19 | Chamfering or rounding method and die used in said method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8210580A JPS579536A (en) | 1980-06-19 | 1980-06-19 | Chamfering or rounding method and die used in said method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS579536A true JPS579536A (en) | 1982-01-19 |
Family
ID=13765126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8210580A Pending JPS579536A (en) | 1980-06-19 | 1980-06-19 | Chamfering or rounding method and die used in said method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS579536A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919035A (en) * | 1982-07-22 | 1984-01-31 | Toshiba Corp | Chamfering device |
| JPS63309024A (en) * | 1987-04-17 | 1988-12-16 | サントル・ナシオナル・デチュド・スパシアル | Time standard apparatus with substantially constant stability for short term and long term time measurement |
| JPH02179326A (en) * | 1988-12-28 | 1990-07-12 | Ishizaki Press Kogyo Kk | Metal plate forming method |
-
1980
- 1980-06-19 JP JP8210580A patent/JPS579536A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5919035A (en) * | 1982-07-22 | 1984-01-31 | Toshiba Corp | Chamfering device |
| JPS6336854B2 (en) * | 1982-07-22 | 1988-07-21 | Tokyo Shibaura Electric Co | |
| JPS63309024A (en) * | 1987-04-17 | 1988-12-16 | サントル・ナシオナル・デチュド・スパシアル | Time standard apparatus with substantially constant stability for short term and long term time measurement |
| JPH02179326A (en) * | 1988-12-28 | 1990-07-12 | Ishizaki Press Kogyo Kk | Metal plate forming method |
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