405 nm Laser vs UV LED in Resin 3D Printing: Which Light Source Is Better?
Resin 3D printing depends on precise light curing, but the type of light source strongly affects accuracy, speed, and system cost. Many designers underestimate this choice. 실제로, both 405 nm lasers and UV LEDs can cure photopolymer resins effectively. 하지만, lasers provide higher beam quality and resolution, while LEDs offer lower cost and simpler […]
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 […]
