Method for forming a hole and method for forming nozzle in orifice plate of printing head
US5811019A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 1996 |
| Grant date | Sep 22, 1998 |
| Priority date | — |
| Expiry date | Mar 26, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for a hole inclined relative to the direction of thickness of a workpiece by light energy. A groove is formed in an energy-concentrated portion of a plate as a workpiece for opening on a major surface of a plate operating as a light energy irradiated surface for forming an irregular surface portion. The light energy is illuminated on this irregular surface portion from the major surface of the plate in an oblique direction relative to the direction of thickness of the plate. The irregular surface portion of the workpiece is formed integrally with the workpiece by injection molding. The irregular surface portion may also be formed by sand-blasting, chemical etching or by an abrasive brush. The light energy is a laser, especially an excimer laser. The workpiece may be formed of an inorganic material, an organic material or a metallic material. The hole of a larger angle of inclination is formed by employing the light energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.