Development of a 50W Class Direct Diode Laser System for Materials Processing and its Processing Characteristics(Physics, Processes, Instruments & Measurements)
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A 50W class high energy density diode laser system was developed by the optical combination of four 15W diode arrays. The beam diameter at the focal point was 264μm, and a mean energy density of 60kW/cm^2 was achieved. Cutting and welding characteristics were investigated for mild steel. Mild steel plates 0.1mm thick could be cut at a cutting speed of 6mm/s and a penetration depth of 0.2mm on α 0.4mm thick specimen was achieved at a welding speed of 1mm/s without surface treatment or an assist gas.
- Transactions of JWRI
Transactions of JWRI 27(2), 21-26, 1998-12