Visible laser welding of electronic packaging, automotive electrics, battery and other components
AssigneeNuburu, Inc.
InventorsJean Michel Pelaprat, Mark S. Zediker, Mathew Finuf
Life of this patent
Estimating the term…
Abstract
A visible light laser system and operation for welding materials together. A blue laser system and operation for welding conductive elements, and in particular thin conductive elements, together for use in energy storage devices, such as battery packs.
Claims41
A method of welding two pieces of metal together, the method comprising:
- associating a first piece of metal with a second piece of metal;
- directing a laser beam toward the first and second pieces of metal;
- wherein the laser beam has a wavelength in the range of about 400 nm to about 500 nm;
- wherein the pieces of metal absorb from about 40% to about 75% of the laser beam;
- and, whereby the pieces are welding together.
A method of welding to pieces of metal together, the method comprising:
- associating a first piece of metal with a second piece of metal;
- directing a laser beam toward the first and second pieces of metal;
- wherein the laser beam has a wavelength in the range of about 400 nm to about 500 nm;
- wherein the first piece of metal comprises aluminum;
- and, whereby the pieces are welding together.
A method of joining two metal components, using a blue laser beam, the method comprising:
- a. providing a source of a 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 scanning devices and focusing optics so that the laser beam can be directed in a pattern and at a predetermined laser intensity;
- c. the laser beam and at least one of the first or second components having an absorptivity that is at least about 45%;
- d. delivering the laser beam to the target location to weld the first and second components together, 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.
A method of joining two metal components, using a blue laser beam, wherein the laser intensity at the weld site does not need to be appreciably changed, the method comprising:
- a. providing a source of a laser beam having a predetermined wavelength to a weld site, the weld site including a first component to be joined and a second component to be joined;
- b. providing scanning devices and focusing optics so that the laser beam can be directed in a pattern and at a predetermined intensity;
- c. delivering the laser beam to the weld site to weld the first and second components together,
- d. wherein the intensity remains essentially the same from the starting of the weld through its completion;
- and,
- e. and, wherein at least 45% of the laser beam energy is utilized to form the weld.
Dependencies are inferred from the claim text.