Apparatus for piercing brittle materials with high velocity abrasive-laden waterjets
US4934111A · kind A · utility
46Cited by
15References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1989 |
| Grant date | Jun 19, 1990 |
| Priority date | — |
| Expiry date | Feb 9, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/0591
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An abrasivejet system for cutting brittle materials is disclosed. One feature of the disclosed system is a jet-producing nozzle assembly which includes means for inducing turbulence in the jet-forming liquid during the period in which the jet initially impacts on the brittle material so that impact stress on the material is reduced. A second disclosed feature is a supplementary suction device, preferable in the form of a second nozzle dimensioned for maximum suction, which maintains a generally constant feed rate of abrasive into the cutting nozzle assembly during the turbulence-inducing phase of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.