Invention Grant
- Patent Title: Method and deep-drawing apparatus for the deep drawing of metal sheets
- Patent Title (中): 金属板深拉深的方法和深冲设备
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Application No.: US12161913Application Date: 2007-01-16
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Publication No.: US08341996B2Publication Date: 2013-01-01
- Inventor: Torsten Hallfeldt , Raymund Pflitsch , Carsten Greisert , Juergen Wesemann
- Applicant: Torsten Hallfeldt , Raymund Pflitsch , Carsten Greisert , Juergen Wesemann
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Tung & Associates
- Agent Raymond L. Coppiellie
- Priority: DE102006003268 20060124
- International Application: PCT/EP2007/050372 WO 20070116
- International Announcement: WO2007/085550 WO 20070802
- Main IPC: B21D22/00
- IPC: B21D22/00

Abstract:
A method and a deep-drawing apparatus for the deep drawing of a metal sheet by means of a press, a table, a drawing punch, and also a drawing die and a counterpressure plate interacting with the drawing die, which together form a flow path for the metal sheet, wherein at least one drawing strip movable relative to the counterpressure plate is pushed transversely through the flow path of the metal sheet in order to deflect the metal sheet during a drawing phase (first deflection phase) and the drawing strip, for a stop phase, is pushed by a further short distance transversely through the flow path (F) (second deflection stage), wherein a deflection increased once again inhibits the flow of the metal sheet during the second deflection stage, and wherein the metal sheet is essentially plastically formed at the end of the deep-drawing operation, wherein the degree of deflection required during the first deflection stage is set by means of an interchangeable distance piece which is arranged between the counterpressure plate and the drawing strip and serves as a limit stop. Independently thereof, the degree of deflection required during the second deflection stage can be set by further distance elements which are arranged between the table and the drawing strips.
Public/Granted literature
- US20090301163A1 Method and Deep-Drawing Apparatus for the Deep Drawing of Metal Sheets Public/Granted day:2009-12-10
Information query