The green laser welder is designed to weld copper, gold and other
materials with high reflectance. Thanks to its wavelength of 532nm,
its flexible use of small fibers and its considerable change in
resonator design, green laser welding is a unique solution.
Application samples using CuSn6 show penetrations of up to
1.26mm deep in non-coated sheets.
Green Laser Welding Benefits:
For solder-less joining of semiconductor substrate
SHG laser can weld copper wire directly onto a semiconductor substrate without using solder
Combination of YAG fundamental laser and SHG laser realizes welding of thick copper plates; which is difficult to weld by a conventional way
SHG laser is the best solution for welding copper and gold.
Copper and gold are materials with high reflectance so that those are known as hard-to-weld materials
Wavelength of SHG laser is 532nm which is a half of fundamental laser (1064nm) and that makes laser absorptance to copper and gold 4.5 to 20 times higher than fundamental laser
Even copper and gold does not reflect SHG laser
Green Laser Welding Applications
Typical green laser welding examples are sensors, radar components, battery housing, conductors for thin film cells, pacemaker cases, insulin pump cases, etc.