Invention Grant
- Patent Title: Forging method for producing a piston or piston skirt
- Patent Title (中): 用于生产活塞或活塞裙的锻造方法
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Application No.: US13533604Application Date: 2012-06-26
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Publication No.: US08904634B2Publication Date: 2014-12-09
- Inventor: Wolfgang Iβler
- Applicant: Wolfgang Iβler
- Applicant Address: DE
- Assignee: Mahle International GmbH
- Current Assignee: Mahle International GmbH
- Current Assignee Address: DE
- Agency: Rader, Fishman & Grauer PLLC
- Priority: DE102011078145 20110627
- Main IPC: B23P15/10
- IPC: B23P15/10 ; B21K1/18 ; F02F3/00

Abstract:
A forging method for producing a piston skirt having two skirt walls and two box walls connecting the skirt walls may include forging, to the piston skirt, the skirt walls at least slightly conically towards the outside of the piston skirt via a first forging die. The box walls may be forged to the piston skirt, wherein each box wall has a hub inside and a hub outside. The box walls may be moulded via a second forging die, wherein the hub outside of each box wall runs at least one of substantially parallel to the piston axis and slightly sloping to an outside of their hub inside towards a free end of the piston skirt to the outside. The skirt walls may be drawn, simultaneously with moulding of the box walls, into a position that is approximately parallel to the piston axis.
Public/Granted literature
- US20130036608A1 FORGING METHOD FOR PRODUCING A PISTON OR PISTON SKIRT Public/Granted day:2013-02-14
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