Apparatus for producing a piston

US9718122B2 · kind B2 · utility

Assignee

• Mahle International GmbH · DE

Inventor

• Michael Mittelstaedt · Bad Dürrheim, DE

Key dates

• Filing date: Apr 15, 2015
• Grant date: Aug 1, 2017
• Expiry date: Oct 1, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22C23/00
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

An apparatus for producing a piston may include a casting mold having an axially open cavity defining a surrounding cavity wall, the cavity wall being profiled to receive an annular core to define a cooling duct geometry. A core holding device may be adjustable in an axial direction for introducing the core into the casting mold. The core holding device may include a gripping device for gripping the core. The gripping device may include a plurality of spreadable first grippers. The plurality of first grippers may be adjustable at least between a first position, in which the plurality of first grippers are arranged in a radially inner position, and a second position, in which the plurality of first grippers transition radially outwards in relation to the first position and support the core.