PROCEDURE FOR DIMENSIONALLY ACCURATE SINTERING OF A SHAPED PIECE
First Claim
1. Procedure for dimensionally accurate sintering of a shaped piece (10) manufactured from a blank comprising porous ceramic material, especially a dental bridge, whereby during the sintering the shaped piece remains connected via at least one first connection (20, 22, 24) like a rib, to a support (14), that is manufactured from the blank, characterized in that the support (14) is manufactured as a section that at least in sections surrounds the shaped piece (10) by materials removal processing from the blank, whereby after the manufacture, the support, first, is connected via the at least one first connection (20, 22, 24, 34, 36) with the shaped piece, and second, via at least one second connection (16, 18, 30, 32) with the residual blank (12) that in sections is separated from the support.
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Accused Products
Abstract
A procedure for dimensionally accurate sintering of a shaped piece manufactured from a blank of porous ceramic material, in which during the sintering, the shaped piece remains connected via at least one first connection like a rib, with a support that is manufactured from the blank. To ensure with simple procedural steps and simple design measures that the geometry does not change during sintering, the invention provides that the support is manufactured as a section of the blank that at least in sections surrounds the shaped piece by materials removal processing from the blank, and after the manufacture, the support, for one, is connected via the at least one first connection with the shaped piece, and for another, via at least one second connection with the residual blank that in sections is separated from the support.
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Citations
28 Claims
- 1. Procedure for dimensionally accurate sintering of a shaped piece (10) manufactured from a blank comprising porous ceramic material, especially a dental bridge, whereby during the sintering the shaped piece remains connected via at least one first connection (20, 22, 24) like a rib, to a support (14), that is manufactured from the blank, characterized in that the support (14) is manufactured as a section that at least in sections surrounds the shaped piece (10) by materials removal processing from the blank, whereby after the manufacture, the support, first, is connected via the at least one first connection (20, 22, 24, 34, 36) with the shaped piece, and second, via at least one second connection (16, 18, 30, 32) with the residual blank (12) that in sections is separated from the support.
- 13. Residual blank (12) as part of a blank comprising porous ceramic material with a shaped piece (10) manufactured from the blank by materials removal, that is configured to be integral with the residual blank, wherein the shaped piece (10) is connected via at least one first connection (20, 22, 24, 34, 36) with a support (14) manufactured by materials removal from the blank and at least in sections surrounding at an interval the shaped piece, which for its part is connected with it at an interval by at least one second connection (16, 18, 30, 32) at an interval to the residual blank (12).
Specification