Laser cutting nozzle and laser cutting method
US11084124B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 2018 |
| Grant date | Aug 10, 2021 |
| Priority date | — |
| Expiry date | Jun 5, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/38
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A laser cutting nozzle includes an inner nozzle and an outer nozzle. The inner nozzle exhibits a tube shape having a through hole on an axis and having a diameter decreasing on a first end portion side and includes a notch extending in the axis direction along an outer peripheral surface on a second end portion side. The outer nozzle is fitted to the outer peripheral surface of the inner nozzle and includes a vent passage including the notch and communicating between the first end portion and the second end portion in the axis direction. A minimum flow cross-sectional area of the vent passage matches an opening area of the notch in an end surface on the second end portion side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.