US 12,220,764 B2
Visible laser welding of electronic packaging, automotive electrics, battery and other components
Jean Michel Pelaprat, Oak Park, IL (US); Mark S. Zediker, Castle Rock, CO (US); and Mathew Finuf, Parker, CO (US)
Assigned to Nuburu, Inc., Centennial, CO (US)
Filed by NUBURU, INC., Centennial, CO (US)
Filed on Apr. 28, 2017, as Appl. No. 15/581,928.
Claims priority of provisional application 62/329,830, filed on Apr. 29, 2016.
Prior Publication US 2017/0341144 A1, Nov. 30, 2017
Int. Cl. B23K 26/06 (2014.01); B22F 10/36 (2021.01); B23K 26/08 (2014.01); B23K 26/082 (2014.01); B23K 26/14 (2014.01); B23K 26/22 (2006.01); B23K 26/244 (2014.01); B23K 26/32 (2014.01); B23K 26/323 (2014.01); B23K 26/70 (2014.01); B22F 10/25 (2021.01); B22F 12/00 (2021.01); B22F 12/44 (2021.01); B23K 101/36 (2006.01); B23K 103/00 (2006.01); B23K 103/04 (2006.01); B23K 103/10 (2006.01); B23K 103/12 (2006.01); B23K 103/18 (2006.01)
CPC B23K 26/14 (2013.01) [B22F 10/36 (2021.01); B23K 26/0648 (2013.01); B23K 26/0665 (2013.01); B23K 26/082 (2015.10); B23K 26/0876 (2013.01); B23K 26/22 (2013.01); B23K 26/244 (2015.10); B23K 26/323 (2015.10); B23K 26/702 (2015.10); B22F 10/25 (2021.01); B22F 12/22 (2021.01); B22F 12/44 (2021.01); B23K 26/32 (2013.01); B23K 2101/36 (2018.08); B23K 2103/04 (2018.08); B23K 2103/10 (2018.08); B23K 2103/12 (2018.08); B23K 2103/18 (2018.08); B23K 2103/42 (2018.08)] 24 Claims
OG exemplary drawing
 
1. A method of joining two metal components, using a blue laser beam, the method comprising:
a. providing a source of a blue laser beam having a predetermined wavelength to a target location, the target location including a first component to be joined and a second component to be joined;
b. providing a scanning device and focusing optics configured to deliver the blue laser beam in a pattern and at a predetermined laser intensity to the target location, wherein the predetermined laser intensity defines a laser beam energy;
c. the blue laser beam and at least one of the first or second components having an absorptivity that is at least about 45%;
d. delivering the blue laser beam in the pattern and the predetermined laser intensity to the target location to weld the first and second components together; thereby forming a weld between the first and second components; wherein at least 45% of the laser beam energy is utilized to form the weld; and,
e. wherein the weld has a resistivity of about 0.1 mΩ to about 250 mΩ.