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US 8,014,894 B2Granted
Method of surface manufacture with an apex decentered from a spindle axis
AssigneeNovartis AG
InventorsStephen Kendig, Cornelius Daniel Niculas, Jason Emanuele Molinari, Nelson David Baity
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Abstract
The present invention is related to manufacturing surfaces with an axis decentered from the spindle axis. In particular, the present invention is related to compensating for tool geometry in cutting processes that involve an oscillating tool.
Claims12
A method for cutting a surface with the apex of a part decentered from the spindle axis in a lathing process comprising:
- aligning a decentralized apex with a spindle axis;
- defining a central axis as a radial distance from the spindle axis;
- characterizing part design as a series of points;
- translating the series of points into a stacked elevational map;
- storing the stacked elevational map as a first mini-file;
- compensating for tool geometry;
- creating a second mini-file with the geometry-compensated values;
- transmitting the second mini-file to a computer numerical control lathe;
- and
- cutting a rotating part material with an oscillating tool according to the second mini-file.
7 more elements
A method for compensating for diamond tool geometry comprising:
- creating a representation of a part surface as a spiral and defining meridians within the spiral;
- calculating the X and Z locations;
- calculating the desired position of a diamond tool relative to the surface point to be cut;
- compensating for the diamond tool radius to determine proper tool position to generate recalculated points;
- and
- calculating a geometry-compensated zero meridian.
3 more elements
Dependencies are inferred from the claim text.