Casting device and method for using same
AssigneeFraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.
InventorsFRANZ-JOSEF WOESTMANN, MICHAEL HEUSER, MATTHIAS BUSSE
Life of this patent
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Abstract
A casting device having a casting mold and a core for producing a helical casting is described. The may have an expendable core that can be dissolved after the casting process. Advantageous effects of the device and process can be achieved by virtue of the fact that the female mold for accommodating the helical casting during the casting process is formed completely within the outer contour of the core, the female mold being delimited by the core and, at the peripheral boundary surfaces of the female mold, by the casting mold.
Claims26
1-25. (canceled)
A casting device with a casting mould and with a core for the manufacture of a spiral-shaped casting,
- wherein the core is designed as a lost core which can be disintegrated after the casting,
- wherein a female mould for receiving the spiral-shaped casting on casting is formed completely within the outer contour of the core, wherein the female mould on the one hand is delimited by the core as well as on the other hand at its peripheral-side delimitation surfaces by the casting mould.
The casting device according to claim to 26, wherein the mould part comprises the same material as the core.
A method for the use of a casting device, comprising:
- providing a core designed as a lost core which can be disintegrated after the casting,
- wherein a female mould for receiving the spiral-shaped casting on casting is formed completely within the outer contour of the core,
- wherein the female mould on the one hand is delimited by the core as well as on the other hand at its peripheral-side delimitation surfaces by the casting mould,
- wherein the core is expanded or contracted by way of temperature change in a manner such that it is adapted to the size of the casting mould in an exactly fitting manner.
Dependencies are inferred from the claim text.