Kinematic coupling method and system for aligning sand mold cores and the like and other soft objects and surfaces
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United States of America Patent
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Jun 23, 1998
Grant Date -
N/A
app pub date -
Aug 8, 1996
filing date -
Aug 8, 1996
priority date (Note) -
Expired
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Abstract
The invention embraces the incorporation of kinematic fixturing elements into cores as for the precise casting of components, where typically the cores are much softer than metal, and typically the cores are sacrificial (they are destroyed during the casting process) whereby kinematic coupling grooves are located in each of the to-be-mated surfaces of a pair of core elements, such that when a ball is placed in each of the pairs of grooves, and the elements are brought together, even with coarse axial location of the ball in the grooves, very precise relative location of the two cores is obtained; and then, when a clamping force is applied to the cores, the balls create deformation of the core grooves, and the surfaces on the two cores come together into intimate contact.
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