Invention Grant
- Patent Title: Laser drilling and machining enhancement using gated CW and short pulsed lasers
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Application No.: US17040155Application Date: 2019-03-22
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Publication No.: US11712750B2Publication Date: 2023-08-01
- Inventor: Sonny S. Ly , Jeffrey D. Bude , Gabriel Mark Guss , Wesley John Keller , Raluca A. Negres , Alexander M. Rubenchik , Nan Shen
- Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
- Applicant Address: US CA Livermore
- Assignee: Lawrence Livermore National Security, LLC
- Current Assignee: Lawrence Livermore National Security, LLC
- Current Assignee Address: US CA Livermore
- Agency: Harness, Dickey & Pierce, P.L.C.
- International Application: PCT/US2019/023523 2019.03.22
- International Announcement: WO2019/183445A 2019.09.26
- Date entered country: 2020-09-22
- Main IPC: B23K26/0622
- IPC: B23K26/0622 ; B23K26/382 ; B23K26/06 ; H01S3/23

Abstract:
The present disclosure relates to a laser system for processing a material. The system may make use of a laser configured to intermittently generate a first laser pulse of a first duration and a first average power, at a spot on a surface of the material being processed, and a second laser pulse having a second duration and a second peak power. The second duration may be shorter than the first duration by a factor of at least 100, and directed at the spot. The second laser pulse is generated after the first laser pulse is generated. The first laser pulse is used to heat the spot on the surface of the material, while the second laser pulse induces a melt motion and material ejection of molten material from the melt pool.
Public/Granted literature
- US20210001427A1 LASER DRILLING AND MACHINING ENHANCEMENT USING GATED CW AND SHORT PULSED LASERS Public/Granted day:2021-01-07
Information query
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