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US 8,077,894 B2Granted
Feature protection for stereo lithographic manufacturing processes
AssigneeSiemens Hearing Instruments, Inc.
InventorsFred McBagonluri, Oleg Saltykov, Salman Parsi
Life of this patent
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Abstract
To prevent stereo lithography (SLA) support structures for parts fabricated in an SLA apparatus from interfering with features in the parts, a structural shield such as a dome may be place around the feature and then discarded at the conclusion of the SLA process.
Claims4
A method for fabricating a hearing instrument shell comprising at least one aperture, using stereo lithography, comprising:
- generating a model of the shell for a stereo lithography fabrication apparatus;
- determining the location of at least one aperture in the model of the shell;
- selectively adding a structural shield covering the aperture;
- providing the model to the stereo lithography fabrication apparatus;
- fabricating the shell with the stereo lithography fabrication apparatus;
- and
- removing the structural shield.
4 more elements
Dependencies are inferred from the claim text.