405 nm Laser vs UV LED in Resin 3D Printing: Which Light Source Is Better?
Both 405 nm lasers and UV LEDs are widely used in resin 3D printing because they match the absorption peak of common photoinitiators. Laser systems provide higher beam quality, which enables finer resolution and better focus control. UV LED systems are cheaper and simpler, which makes them popular in consumer and desktop printers. The choice […]
Why Is Copper So Difficult to Laser Weld? (Problems and Solutions)
Copper is widely used in EV batteries and power electronics. But manufacturers often struggle to weld it reliably. High reflectivity and thermal conductivity cause unstable melt pools and welding defects. Copper is difficult to laser weld because it reflects infrared light and rapidly dissipates heat. Stable welding requires high power density, optimized parameters, and often […]
