Invention Grant
- Patent Title: Method and apparatus for three-dimensional additive manufacturing with a high energy high power ultrafast laser
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Application No.: US14324066Application Date: 2014-07-03
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Publication No.: US09643361B2Publication Date: 2017-05-09
- Inventor: Jian Liu
- Applicant: Jian Liu
- Agency: Taboada Law Firm, PLLC
- Agent John M. Taboada
- Main IPC: B29C67/00
- IPC: B29C67/00 ; B22F3/105 ; B28B1/00 ; B33Y30/00 ; B33Y10/00 ; B33Y50/02 ; B23K26/0622 ; B23K26/342

Abstract:
Methods and systems for three-dimensional additive manufacturing of samples are disclosed, including generating electromagnetic radiation from an ultrashort pulse laser, wherein the electromagnetic radiation comprises a wavelength, a pulse repetition rate, a pulse width, a pulse energy, and an average power; focusing the electromagnetic radiation into a focal region; using a powder delivery system comprising a powder vessel, a roller, and a receptacle to deposit one or more powders from the powder vessel into a receptacle at the focal region of the electromagnetic radiation and to spread the one or more powders in the receptacle into a fabrication powder bed; and using a computer to adjust the micro and macro pulses, macro pulse repetition rate, and the average power of the ultrashort pulse laser. The samples may be made with micron and/or submicron level precision and/or feature size and may be made using high temperature materials. Other embodiments are described and claimed.
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