SE8801846D0 - IMPROVED LONG WEARING PUNCH - Google Patents
IMPROVED LONG WEARING PUNCHInfo
- Publication number
- SE8801846D0 SE8801846D0 SE8801846A SE8801846A SE8801846D0 SE 8801846 D0 SE8801846 D0 SE 8801846D0 SE 8801846 A SE8801846 A SE 8801846A SE 8801846 A SE8801846 A SE 8801846A SE 8801846 D0 SE8801846 D0 SE 8801846D0
- Authority
- SE
- Sweden
- Prior art keywords
- punching
- improved long
- long wearing
- edge
- punch
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/34—Perforating tools; Die holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The tool for use with a punching press for punching holes in workpieces has an elongate body having first and second ends. The first end is for releasable engagement by the punching press and the second end has a working surface to engage the workpiece to be punched. - The working surface comprises at least first and second punching edges formed on said second end of the body; and disposed in axially spaced relationship. The first punching edge is formed on the leading end of the second end of the body and the second punching edge having a dia. less than the dia. of the first punching edge.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8801846A SE8801846L (en) | 1988-05-17 | 1988-05-17 | Punch tool for metal - has pair of punching edges separated by annular groove on front of body |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8801846A SE8801846L (en) | 1988-05-17 | 1988-05-17 | Punch tool for metal - has pair of punching edges separated by annular groove on front of body |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8801846D0 true SE8801846D0 (en) | 1988-05-17 |
SE8801846L SE8801846L (en) | 1989-11-18 |
Family
ID=20372347
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8801846A SE8801846L (en) | 1988-05-17 | 1988-05-17 | Punch tool for metal - has pair of punching edges separated by annular groove on front of body |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE8801846L (en) |
-
1988
- 1988-05-17 SE SE8801846A patent/SE8801846L/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
SE8801846L (en) | 1989-11-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8801846-0 Effective date: 19901004 |