Method of milling repeatable exit holes in ink-jet nozzles
US6749285B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2002 |
| Grant date | Jun 15, 2004 |
| Priority date | — |
| Expiry date | Oct 8, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/47
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of laser milling an aperture in a workpiece for use with manufacturing ink-jet nozzles includes initially illuminating a surface of the workpiece with a laser beam at a point within an outer perimeter of a desired aperture and a distance away from the outer perimeter sufficient to substantially avoid initial ablation of the outer perimeter. The laser beam is driven substantially in the direction of the outer perimeter at a variable rate controlled to avoid deformation of the outer perimeter. Material of the workpiece is ablated in a pattern designed to substantially remove material within the outer perimeter, thereby forming the aperture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.