EP2923778A3 - Method for the manufacturing holes with a countersink in a plate-like material - Google Patents
Method for the manufacturing holes with a countersink in a plate-like material Download PDFInfo
- Publication number
- EP2923778A3 EP2923778A3 EP15160455.0A EP15160455A EP2923778A3 EP 2923778 A3 EP2923778 A3 EP 2923778A3 EP 15160455 A EP15160455 A EP 15160455A EP 2923778 A3 EP2923778 A3 EP 2923778A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- shaped material
- countersink
- hole
- shaped
- 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.)
- Withdrawn
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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/04—Stamping using rigid devices or tools for dimpling
-
- 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
-
- 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
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Punching Or Piercing (AREA)
- Drilling And Boring (AREA)
Abstract
Die Erfindung betrifft ein Verfahren zur Herstellung von angesenkten Löchern (12) in einem plattenförmigen Material (14), bei dem in dem plattenförmigen Material (14) in einem Vorstanzschritt mit einem Vorstanzstempel (24) ein Vorloch (16) ausgestanzt wird, welches mehrere über den Umfang verteilt und radial nach außen gerichteten Nasen (18) aufweist, und auf einem gemeinsamen fiktiven Kreisumfang liegen, und bei dem in einem Ansenkschritt in das Vorloch (16) mit einem Ansenkstempel (42) eine Ansenkung (34) eingebracht wird, wodurch die vorgestanzte, sternförmige Schnittkontur (17) zumindest teilweise in eine sich von einer Oberseite (35) des plattenförmigen Materials (14) zur Unterseite (37) des plattenförmigen Materials (14) hin erstreckende, konische Ansenkfläche (32) übergeführt wird. The invention relates to a method for producing countersunk holes (12) in a plate-shaped material (14), in which a pre-hole (16) is punched out in the plate-shaped material (14) in a pre-punching step with a pre-punch (24) distributed circumferentially and radially outwardly directed lugs (18), and lie on a common notional circumference, and in which in a counterbore in the pre-hole (16) with a serration (42) a countersink (34) is introduced, whereby the prepunched, star-shaped sectional contour (17) at least partially in a from a top (35) of the plate-shaped material (14) to the bottom (37) of the plate-shaped material (14) extending towards conical Ansenkfläche (32) is transferred.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014103975.0A DE102014103975B4 (en) | 2014-03-24 | 2014-03-24 | Method, punching tool and leveling tool for the production of countersunk holes in a plate-shaped material |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2923778A2 EP2923778A2 (en) | 2015-09-30 |
EP2923778A3 true EP2923778A3 (en) | 2016-03-16 |
Family
ID=52780851
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15160455.0A Withdrawn EP2923778A3 (en) | 2014-03-24 | 2015-03-24 | Method for the manufacturing holes with a countersink in a plate-like material |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2923778A3 (en) |
DE (1) | DE102014103975B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118002691B (en) * | 2024-04-09 | 2024-07-23 | 江苏南方精工股份有限公司 | Stamping method and die for bending and stretching products |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0879656A1 (en) * | 1997-05-20 | 1998-11-25 | FERCO INTERNATIONAL Ferrures et Serrures de Bâtiment, Société Anonyme | Device for making, by pressing a frustroconical hole in a metal strip material in particular, a lock casing |
AT4432U1 (en) * | 1999-04-27 | 2001-07-25 | Hydro Aluminium Komponenten Gm | METHOD FOR PRODUCING SUNNEL HOLES AND TOOL FOR EXERCISING THE METHOD |
FR2870145A1 (en) * | 2004-05-11 | 2005-11-18 | Ferco Int Usine Ferrures | Metallic part e.g. locking cross-arm selvedge, has countersunk hole formed by two punching-stamping operations and comprising sectional chamfer communicating with polygonal hole which includes several sides |
EP2532452A1 (en) * | 2011-06-10 | 2012-12-12 | TRUMPF Werkzeugmaschinen GmbH + Co. KG | Method and tool for punching and straightening sheet metal |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2308440A1 (en) | 1975-04-21 | 1976-11-19 | Ferco Int Usine Ferrures | Countersink for sheet metal circular holes - has oversize pilot hole drilled or punched and countersink produced by deforming hole edges |
JPS52132490A (en) | 1976-04-30 | 1977-11-07 | Yoshitaka Nakanishi | Method of sinking counter sink in plate blank |
DE3116765C1 (en) * | 1981-04-28 | 1990-10-04 | Rohde & Schwarz GmbH & Co KG, 8000 München | Tool for making countersunk holes or pass holes in a sheet on a punching machine |
-
2014
- 2014-03-24 DE DE102014103975.0A patent/DE102014103975B4/en active Active
-
2015
- 2015-03-24 EP EP15160455.0A patent/EP2923778A3/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0879656A1 (en) * | 1997-05-20 | 1998-11-25 | FERCO INTERNATIONAL Ferrures et Serrures de Bâtiment, Société Anonyme | Device for making, by pressing a frustroconical hole in a metal strip material in particular, a lock casing |
AT4432U1 (en) * | 1999-04-27 | 2001-07-25 | Hydro Aluminium Komponenten Gm | METHOD FOR PRODUCING SUNNEL HOLES AND TOOL FOR EXERCISING THE METHOD |
FR2870145A1 (en) * | 2004-05-11 | 2005-11-18 | Ferco Int Usine Ferrures | Metallic part e.g. locking cross-arm selvedge, has countersunk hole formed by two punching-stamping operations and comprising sectional chamfer communicating with polygonal hole which includes several sides |
EP2532452A1 (en) * | 2011-06-10 | 2012-12-12 | TRUMPF Werkzeugmaschinen GmbH + Co. KG | Method and tool for punching and straightening sheet metal |
Also Published As
Publication number | Publication date |
---|---|
DE102014103975B4 (en) | 2018-12-20 |
EP2923778A2 (en) | 2015-09-30 |
DE102014103975A1 (en) | 2015-09-24 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: B21D 28/34 20060101ALI20160205BHEP Ipc: B21D 28/26 20060101ALI20160205BHEP Ipc: B21D 22/04 20060101AFI20160205BHEP Ipc: B21D 28/24 20060101ALI20160205BHEP |
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