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US 4,802,525 AGranted
Removing a casting from a mold
AssigneeDornier Medizintechnik GmbH
InventorsGerold Heine, Joachim Stark
Life of this patent
Estimating the term…
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.
Claims4
Method for removing the mold or parts of the mold from a casting following solidification and cooling comprising the steps of
- immersing the casting with mold or mold particles still attached in a liquid;
- and
- generating and focusing shock waves by means of a curved transducer onto interface portions between the mold and mold parts on one hand and the casting on the other hand, to obtain ablation and spalling of the mold material to be removed from the casting.
Dependencies are inferred from the claim text.