Piezoelectric sensor based smart-die structure for predicting the onset of failure during die casting operations
US8833174B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Apr 14, 2008 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | Jan 16, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/42
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An in-situ apparatus is provided for monitoring the state of stress/strain and cracking in a die surface. The apparatus may also be used to facilitate the prudent removal of the die from the surface so that it may be repaired before catastrophic failure occurs. Accordingly, the yield of a process used to generate die cast structures may be greatly increased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.