JPS55120441A - Production of hollow part - Google Patents
Production of hollow partInfo
- Publication number
- JPS55120441A JPS55120441A JP2780079A JP2780079A JPS55120441A JP S55120441 A JPS55120441 A JP S55120441A JP 2780079 A JP2780079 A JP 2780079A JP 2780079 A JP2780079 A JP 2780079A JP S55120441 A JPS55120441 A JP S55120441A
- Authority
- JP
- Japan
- Prior art keywords
- point
- moving blade
- cutting
- moves
- blank
- 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 prevent the deformation at the cut face by so turning a cutting tool as to offcenter with respect to the barrel part thereby cutting the blank in the circumferential direction.
CONSTITUTION: When an eccentric gear is rotated 90°, the center O of a moving blade moves to the O' point and the A point of an outer moving blade and the B point of an inner moving blade 18 move to the A', B' points respectively, thereby cutting in the barrel part of the blank 3. At the same time, the outer moving blade at the C point also moves to the C' point and the cutting loci of the moving blades are shown by the shaded portion a. Further, when the eccentric gear is rotated 180° and the axial center O is moved to O", the A point of the outer moving blade moves to A" and also the D point of the inner moving blade 18 moves to D' point. In this way, when the area cutting in the barrel part of the blank 3 becomes 50% as shown in the shaded portions a, b, c, the remaining portions are separated and cut as rupture face by cracking.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2780079A JPS55120441A (en) | 1979-03-10 | 1979-03-10 | Production of hollow part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2780079A JPS55120441A (en) | 1979-03-10 | 1979-03-10 | Production of hollow part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55120441A true JPS55120441A (en) | 1980-09-16 |
Family
ID=12231045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2780079A Pending JPS55120441A (en) | 1979-03-10 | 1979-03-10 | Production of hollow part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55120441A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013512109A (en) * | 2009-11-30 | 2013-04-11 | ハテブル ウムフオルマシネン アクチエンゲゼルシャフト | Method for manufacturing molded part with through hole |
-
1979
- 1979-03-10 JP JP2780079A patent/JPS55120441A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013512109A (en) * | 2009-11-30 | 2013-04-11 | ハテブル ウムフオルマシネン アクチエンゲゼルシャフト | Method for manufacturing molded part with through hole |
| US9545660B2 (en) | 2009-11-30 | 2017-01-17 | Hatebur Umformmaschinen Ag | Method for producing a formed part furnished with a through hole |
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