Comparison of diode lasers with conventional lasers State-of-the -art co laser High power diode laser (example 2 kW) (example 2 kW) large(1-3 m) e compact(0,02 ma) heavy 1000-3000 kg d light(10 kg +75 kg +150 kg) high energy consumption(efficiency 3- 10%) efficient(30-50%) high running costs d 1/10 of running costs possible P beam quality too low ROFINE SINAR LASER 4/2000-RSL-6
4/2000 - RSL - 6 Comparison of diode lasers with conventional lasers High power diode laser (example 2 kW) State-of-the-art CO2 laser (example 2 kW) • large (1 - 3 m³) • heavy 1000-3000 kg • high energy consumption (efficiency 3 - 10 %) • high running costs G compact (0,02 m³) G light (10 kg + 75 kg + 150 kg) G efficient (30 - 50 %) G 1/10 of running costs possible H beam quality too low
Welding with HPDL: Comparison with Conventional Lasers EEEx9 3.5 NdYAG. 700 W HLDL, 700 W cw =2x104Wcm2 I=2x 10/? 881:g“8:餐 Ls时 intensity in Wunf Dicke im m welding speed for Nd: YAG and HPDi ROFINE SINAR LASER 4/2000-RSL-7
4/2000 - RSL - 7 Welding with HPDL: Comparison with Conventional Lasers 0 0,5 1 1,5 2 2,5 3 3,5 4 4,5 5 0 0,25 0,5 0,75 1 1,25 1,5 1,75 2 2,25 2,5 2,75 3 Dicke im mm Schweißgeschwindigkeit in m/min NdYAG, 700 W cw I = 2 x 106 W/cm² HLDL, 700 W cw I = 2 x 104 W/cm² welding speed for Nd:YAG and HPDL
Diode Lasers in Comparison with Conventional Lasers (today) values based on 1e2(86% criterion 1.000 Q●● 8。895 ExEE苍 Lamp pumped Nd: YAG lasers Diode pumped Nd: YAG lasers 10 Disc lasers CO, lasers Solid state lasers 0.1 1.000 10.000 Industrial available ● Diode lasers ROFIN ZI SINAR°4 LASER 4/2000-RSL-8
4/2000 - RSL - 8 Diode Lasers in Comparison with Conventional Lasers (today) 1 10 100 1.000 10.000 0.1 1 10 100 1.000 CO2 lasers Solid state lasers Diode lasers Diode pumped Nd:YAG lasers Disc lasers Lamp pumped Nd:YAG lasers Laser power [W] Beam parameter product [mm x mrad] Fiber coupled diode lasers Diode lasers Industrial available Values based on 1/e² (86% criterion)
Parameter field for the Materials processing with Lasers 1000 Hardeni For F-number =4 Reme Brazing Clade E×EEoo 10 Soldering Deep Penetration Welding Printing Technolo utting E arking Limit of today diode lasers 0.1 1000 Laser power w ROFINE SINAR By P. Loosen Fraunhofer-Institut fur Lasertechnik LASER 4/2000-RSL.9
4/2000 - RSL - 9 Parameter field for the Materials Processing with Lasers By P.Loosen, Fraunhofer-Institut für Lasertechnik 1 10 100 1.000 10.000 Laser power [W] 0.1 1 10 100 1.000 Beam parameter product [mm x mrad] Drilling Marking Printing Technology Polymer Welding Soldering Cutting non-metals Brazing Hardening Remelting Cladding Limit of todays diode lasers Deep Penetration Welding Cutting Welding Sintering For F-number = 4