Title:
LASER PROCESSING DEVICE CAPABLE OF CONTROLLING LIGHT BEAM INCIDENT ANGLE, AND LASER PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2022/022067
Kind Code:
A1
Abstract:
A laser processing device capable of controlling a light beam incident angle, and a laser processing method. The device comprises a laser generation unit and a hollow unit (5). The laser generation unit emits a light beam having a focal length of F and an axial direction of E, and the light beam passes through the hollow unit (5) and then is incident on the surface of a workpiece (8); the hollow unit (5) is provided with a first reflecting mirror (6A) and a second reflecting mirror (6B); the light beam emitted by the laser generation unit irradiates a first reflecting mirror surface, irradiates a second reflecting mirror surface after being reflected by the first reflecting mirror surface, and irradiates the surface of the workpiece (8) after being reflected by the second reflecting mirror surface; a light beam incident angle can be adjusted and controlled by adjusting the inclination of the first reflecting mirror surface and/or the inclination of the second reflecting mirror surface, such that laser processing at any light beam incident angle can be achieved, and in particular, large-angle light beam incidence can be achieved, and taper-controllable rotary laser processing can be achieved when the hollow unit (5) rotates.
Inventors:
ZHANG WENWU (CN)
ZHANG TIANRUN (CN)
ZHANG PENG (CN)
ZHANG TIANRUN (CN)
ZHANG PENG (CN)
Application Number:
PCT/CN2021/098782
Publication Date:
February 03, 2022
Filing Date:
June 08, 2021
Export Citation:
Assignee:
NINGBO INSTITUTE OF MATERIALS TECH & ENGINEERING CAS (CN)
NINGBO III LASERS TECH CO LTD (CN)
NINGBO III LASERS TECH CO LTD (CN)
International Classes:
B23K26/082; B23K26/06; B23K26/064
Foreign References:
| CN111872548A | 2020-11-03 | |||
| CN213318327U | 2021-06-01 | |||
| US4822974A | 1989-04-18 | |||
| JP2003117008A | 2003-04-22 | |||
| CN109702330A | 2019-05-03 | |||
| US6444948B1 | 2002-09-03 | |||
| US6362454B1 | 2002-03-26 |
Attorney, Agent or Firm:
NINGBO YUANWEI INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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