WO2005056212A1 - Lochstempel zum herstellen von lochungen in der wandung von mit innenhochdruck beaufschlagten hohlen bauteilen - Google Patents
Lochstempel zum herstellen von lochungen in der wandung von mit innenhochdruck beaufschlagten hohlen bauteilen Download PDFInfo
- Publication number
- WO2005056212A1 WO2005056212A1 PCT/EP2004/013014 EP2004013014W WO2005056212A1 WO 2005056212 A1 WO2005056212 A1 WO 2005056212A1 EP 2004013014 W EP2004013014 W EP 2004013014W WO 2005056212 A1 WO2005056212 A1 WO 2005056212A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- punch
- wall
- pressure
- internal high
- hollow parts
- Prior art date
Links
- 238000004080 punching Methods 0.000 abstract description 6
- 238000007493 shaping process Methods 0.000 abstract 3
- 230000000694 effects Effects 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000007598 dipping method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/035—Deforming tubular bodies including an additional treatment performed by fluid pressure, e.g. perforating
-
- 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
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
Definitions
- the invention relates to the design of punches for producing perforations in the walls of hollow components, the component being pressurized by a medium when punching inside.
- a method and a device for cutting out a section from a wall of a hollow body produced by the hydroforming process is known, the cutout being made immediately after the hydroforming with the help of an externally on the outer surface of the hollow body attacking punch.
- the driven punch punches through the internal high-pressure forming tool.
- a generic tool is described in DE 199 34 663 AI.
- the punch is tapered obliquely towards the cutting edge in its area that dips into the component to be punched.
- the material is compressed in the area of the hole wall in accordance with the tapered outer contour of the punch and the hole is immediately sealed by the punch.
- the punch can be moved slowly and asynchronously to one another.
- the quality of the perforations and the process reliability increase considerably.
- the system expenditure can be kept correspondingly low since the tools can be made simpler and more compact. So there are no complex measures to achieve synchronized processes such as tool bridges or electronic path controls.
- FIG. 1 Schematic representation of a punch before punching
- FIG. 1 Schematic representation of a punch after punching
- FIG. 1 shows a partial section of a hollow component 2, preferably produced using the internal high-pressure forming process and still subjected to internal high-pressure, the outer contour of which rests on the inner wall of an internal high-pressure forming tool 4.
- a punch 1 is arranged to be movable in the direction of the arrow, preferably by means of a hydraulic drive (not shown).
- the punch 1 In its area dipping into the component 2, the punch 1 is designed to taper conically towards the cutting edge 3.
- the taper angle is greater than 0 ° and is at most 30 °, but preferably 1 ° to 3 °.
- the cutting edge 3 of the punch 1 is slightly set back relative to the inner mold wall of the internal high-pressure forming tool 4. To make the perforation, the punch 1 is moved in the direction of the component 2, the cutting edge 3 severing the component wall.
- Rich of punch 1 compresses the material in the area of the hole wall 5 and it comes to a simultaneous
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002549547A CA2549547A1 (en) | 2003-12-13 | 2004-11-17 | Punch for producing holes in the wall of hollow parts subjected to the action of internal high-pressure |
US10/582,476 US20070271979A1 (en) | 2003-12-13 | 2004-11-17 | Punch For Producing Holes In The Wall Of Hollow Parts Subjected To The Action Of Internal High Pressure |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10358500A DE10358500B4 (de) | 2003-12-13 | 2003-12-13 | Lochstempel zum Herstellen von Lochungen in der Wandung von mit Innenhochdruck beaufschlagten hohlen Bauteilen |
DE10358500.1 | 2003-12-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005056212A1 true WO2005056212A1 (de) | 2005-06-23 |
Family
ID=34672720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/013014 WO2005056212A1 (de) | 2003-12-13 | 2004-11-17 | Lochstempel zum herstellen von lochungen in der wandung von mit innenhochdruck beaufschlagten hohlen bauteilen |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070271979A1 (de) |
CA (1) | CA2549547A1 (de) |
DE (1) | DE10358500B4 (de) |
WO (1) | WO2005056212A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8459077B2 (en) * | 2005-02-15 | 2013-06-11 | Nsk Ltd. | Manufacturing method for metal member with through hole |
DE102015114074B4 (de) | 2015-08-25 | 2018-07-26 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Vorrichtung und Verfahren zum Trennen eines Werkstückes |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4930384A (en) * | 1988-02-24 | 1990-06-05 | Sanko Industries Limited | Die for notching hollow tubing |
DE4322063C1 (de) * | 1993-07-02 | 1994-08-18 | Schaefer Maschbau Wilhelm | Verfahren und Vorrichtung zum Ausschneiden eines Ausschnittes aus einer Wandung eines nach dem Innhochdruck-Umformverfahren hergestellten Hohlkörpers |
US5666840A (en) * | 1996-06-13 | 1997-09-16 | General Motors Corporation | Method for piercing two aligned holes in a hydroformed tube |
DE29801715U1 (de) * | 1998-02-03 | 1998-04-09 | Schwitzgebel Egon | Vorrichtung zum Stanzen von Werkstücken |
US6591648B1 (en) * | 2002-06-24 | 2003-07-15 | Greenville Tool & Die Company | Method of stamping and piercing a tube |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2317791A (en) * | 1942-04-04 | 1943-04-27 | Miller George Henry | Punch and die |
US3327516A (en) * | 1964-07-22 | 1967-06-27 | Carroll W Hoshour | Percussion tool holder |
DE19719426B4 (de) * | 1997-05-12 | 2005-06-16 | Dr. Meleghy Hydroforming Gmbh & Co. Kg | Verfahren und Vorrichtung zum Herstellen eines Hohlkörpers |
DE19934663A1 (de) * | 1999-07-23 | 2001-01-25 | Anton Bauer Werkzeug Und Masch | Vorrichtung zum Lochen von Werkstücken beim Innenhochdruckumformen |
US6658908B1 (en) * | 2002-08-20 | 2003-12-09 | General Motors Corporation | Punch for piercing and sealing hydroformed parts |
US7159426B1 (en) * | 2005-09-27 | 2007-01-09 | Gm Global Technology Operations, Inc. | Quick change assembly for hydroforming punches |
US7204113B1 (en) * | 2006-09-29 | 2007-04-17 | Gm Global Technology Operations, Inc. | Punch for hydroforming die |
US7293442B1 (en) * | 2007-03-26 | 2007-11-13 | Gm Global Technology Operations, Inc. | Method for hydroforming a ring-shaped tubular structure |
-
2003
- 2003-12-13 DE DE10358500A patent/DE10358500B4/de not_active Expired - Fee Related
-
2004
- 2004-11-17 US US10/582,476 patent/US20070271979A1/en not_active Abandoned
- 2004-11-17 CA CA002549547A patent/CA2549547A1/en not_active Abandoned
- 2004-11-17 WO PCT/EP2004/013014 patent/WO2005056212A1/de active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4930384A (en) * | 1988-02-24 | 1990-06-05 | Sanko Industries Limited | Die for notching hollow tubing |
DE4322063C1 (de) * | 1993-07-02 | 1994-08-18 | Schaefer Maschbau Wilhelm | Verfahren und Vorrichtung zum Ausschneiden eines Ausschnittes aus einer Wandung eines nach dem Innhochdruck-Umformverfahren hergestellten Hohlkörpers |
US5666840A (en) * | 1996-06-13 | 1997-09-16 | General Motors Corporation | Method for piercing two aligned holes in a hydroformed tube |
DE29801715U1 (de) * | 1998-02-03 | 1998-04-09 | Schwitzgebel Egon | Vorrichtung zum Stanzen von Werkstücken |
US6591648B1 (en) * | 2002-06-24 | 2003-07-15 | Greenville Tool & Die Company | Method of stamping and piercing a tube |
Also Published As
Publication number | Publication date |
---|---|
DE10358500A1 (de) | 2005-08-11 |
US20070271979A1 (en) | 2007-11-29 |
CA2549547A1 (en) | 2005-06-23 |
DE10358500B4 (de) | 2007-09-20 |
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