Invention Grant
- Patent Title: Deep-drawing device
- Patent Title (中): 深拉设备
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Application No.: US12448941Application Date: 2008-01-10
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Publication No.: US08424356B2Publication Date: 2013-04-23
- Inventor: Ikuo Tanabe , Hiroyuki Sugai
- Applicant: Ikuo Tanabe , Hiroyuki Sugai
- Applicant Address: JP Niigata
- Assignee: Nagaoka University of Technology
- Current Assignee: Nagaoka University of Technology
- Current Assignee Address: JP Niigata
- Agency: Rader, Fishman & Grauer PLLC
- Priority: JP2007-007695 20070117
- International Application: PCT/JP2008/050205 WO 20080110
- International Announcement: WO2008/087888 WO 20080724
- Main IPC: B21D37/16
- IPC: B21D37/16

Abstract:
A deep drawing apparatus is provided in which a sheet material is subjected to optimal heating and cooling, whereby the limiting draw ratio is increased and a product can be worked more deeply, and uniformity of the sheet thickness of the product can be controlled. This apparatus includes: a punch 2 for subjecting a sheet material 9 to deep drawing; a die 3, used along with the punch, for forming the sheet material and subject the same to deep drawing; an anti-wrinkling component 4 for preventing wrinkling around the periphery of the forming portion in the sheet material; an induction heating coil 5 for directly heating the sheet material at a portion supported by the anti-wrinkling component; a heating controller 6 for controlling the amount of heating of the sheet material by the induction heating coil; and cooling means 21 to 23 for cooling the sheet material at the portion formed by the punch.
Public/Granted literature
- US20100116015A1 DEEP-DRAWING DEVICE Public/Granted day:2010-05-13
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