FR2449509A1 - Deep hole forming tool using plastic deformation - has rotatable bit on axle inclined to axis of support shaft and defining imaginary sphere - Google Patents
Deep hole forming tool using plastic deformation - has rotatable bit on axle inclined to axis of support shaft and defining imaginary sphereInfo
- Publication number
- FR2449509A1 FR2449509A1 FR7904701A FR7904701A FR2449509A1 FR 2449509 A1 FR2449509 A1 FR 2449509A1 FR 7904701 A FR7904701 A FR 7904701A FR 7904701 A FR7904701 A FR 7904701A FR 2449509 A1 FR2449509 A1 FR 2449509A1
- Authority
- FR
- France
- Prior art keywords
- axis
- imaginary sphere
- plastic deformation
- support shaft
- hole forming
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B39/00—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor
- B24B39/02—Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zone; Accessories therefor designed for working internal surfaces of revolution
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The appts. is used to machine deep holes in metal pieces by a process of plastic deformation. The tool has a rotatable bit (1) mounted on an axle (4) projecting from the end of a shaft (5), the axle being inclined to the axis of the shaft and the active surface of the bit defining an imaginary sphere. The active surface may comprise elements projecting from the general surface, being arranged in plane sections angled to the axis of the head. The elements may be arranged to form a helicoidal line, being rigidly or elastically mounted on the head. Alternatively the active surface may be smooth band defining an imaginary sphere, or may comprise a series of independently rotatable discs (11). The head mounting may permit its radial displacement relative to the shaft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7904701A FR2449509A1 (en) | 1979-02-23 | 1979-02-23 | Deep hole forming tool using plastic deformation - has rotatable bit on axle inclined to axis of support shaft and defining imaginary sphere |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7904701A FR2449509A1 (en) | 1979-02-23 | 1979-02-23 | Deep hole forming tool using plastic deformation - has rotatable bit on axle inclined to axis of support shaft and defining imaginary sphere |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2449509A1 true FR2449509A1 (en) | 1980-09-19 |
FR2449509B1 FR2449509B1 (en) | 1982-11-19 |
Family
ID=9222386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7904701A Granted FR2449509A1 (en) | 1979-02-23 | 1979-02-23 | Deep hole forming tool using plastic deformation - has rotatable bit on axle inclined to axis of support shaft and defining imaginary sphere |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2449509A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB542401A (en) * | 1940-10-07 | 1942-01-07 | Nat Acme Co | Improvements in methods and means for burnishing spherical seats |
FR1242523A (en) * | 1959-11-30 | 1960-09-30 | Foote Burt Co | Burnishing head |
-
1979
- 1979-02-23 FR FR7904701A patent/FR2449509A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB542401A (en) * | 1940-10-07 | 1942-01-07 | Nat Acme Co | Improvements in methods and means for burnishing spherical seats |
FR1242523A (en) * | 1959-11-30 | 1960-09-30 | Foote Burt Co | Burnishing head |
Also Published As
Publication number | Publication date |
---|---|
FR2449509B1 (en) | 1982-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |