Removing a casting from a mold

US4802525A · kind A · utility

Assignee

• Dornier Medizintechnik GmbH · DE

Inventors

• Gerold Heine · Oberuhldingen, DE
• Joachim Stark · Berlin, DE

Key dates

• Filing date: Dec 5, 1986
• Grant date: Feb 7, 1989
• Expiry date: Dec 5, 2006

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D29/008
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A mold or parts of the mold are removed from a casting following solidification and cooling by immersing the casting with mold or mold particles still attached in a liquid such as oil or water and focusing shock waves onto interface portions to obtain ablation and spalling of the mold material to be removed from the casting.