Kinematic coupling method and system for aligning sand mold core

Details Kinematic coupling method and system for aligning sand mold core Kinematic coupling method and system for aligning sand mold core

1996-08-08

1998-06-23

Knight, Anthony

Joints and connections

With adjunctive protector, broken parts retainer, repair,...

Position or guide means

164137, 249165, 403 90, B22D 3304, B41B 1160, F16B 502

Patent

active

057695547

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.

REFERENCES:
patent: 628578 (1899-07-01), Eisele
patent: 3039157 (1962-06-01), Bobenmyer
patent: 4674551 (1987-06-01), Kawai et al.
patent: 5098432 (1992-03-01), Wagenknecht
patent: 5253966 (1993-10-01), Clemens et al.

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