Kinematic coupling method and system for aligning sand mold cores and the like and other soft objects and surfaces
US5769554A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 8, 1996 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Aug 8, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/32311
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.