Since its introduction in 2017, the blue industrial laser has changed the game for metal-processing applications. The blue laser made its first mark by demonstrating an unmatched capability to rapidly produce high-quality copper welds. Advances in power and brightness quickly followed that initial success, bringing high-quality and speed to processing of stainless steel, aluminum, brass, and many other reflective metals. Technical advances now also make it easy to integrate the blue laser with standard industrial scanning systems and other automated production facilities. The advantages in speed and quality enable new efficiencies in consumer electronics, battery fabrication, and emobility applications.