Abstract: Welding of copper using laser have proven to be very challenging because of high reflectivity, high thermal conductivity and high heat capacity. Many methods have been developed to weld copper, ranging from ultrasonic welding to Infra-Red laser welding. The copper welding methods using ultrasonic welding and Infra-Red laser welding, however have many shortcomings and limitations. But a new developed technique of welding copper using blue laser has proved to eliminate most of these shortcomings and limitations. Here a study is presented to describe the details regarding this newly developed technique of welding copper using blue laser.

Keywords: Blue laser, laser source, visible spectrum, copper.

| DOI: 10.17148/IARJSET.2022.9129