Through Transmission Laser Spot Welding for PMMA, PVC
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Through transmission laser spot welding is an important welding technology due to its wide use in the field of welding. A 3D CNC laser machine provided by 1064 nm diode laser was used. Two types of polymers (PMMA and PVC) were welded for different (thicknesses, laser welding time, and specimens clamping pressure) at a laser power of 3.29 W. Fourier Transform Infrared Spectroscopy scanning and transparency for each polymer were done. Tensile strength and microstructure examination for each welding point were examined. It is observed that the best laser welding time for all welded pieces was 5 s...
Through transmission laser spot welding is an important welding technology due to its wide use in the field of welding. A 3D CNC laser machine provided by 1064 nm diode laser was used. Two types of polymers (PMMA and PVC) were welded for different (thicknesses, laser welding time, and specimens clamping pressure) at a laser power of 3.29 W. Fourier Transform Infrared Spectroscopy scanning and transparency for each polymer were done. Tensile strength and microstructure examination for each welding point were examined. It is observed that the best laser welding time for all welded pieces was 5 sec for investigated pieces. The welding process for PMMA groups was accomplished. It is observed that the welding strength increased with increasing laser time and the clamping pressure till (5sec, 5 bar) respectively. For 2.50 mm thick, the best condition for laser welding time and clamping pressure was ( 4 sec, and 5 bar) respectively. While for 6.00 mm thick, the best condition for laser welding time and clamping pressure was ( 5 sec, and 5 bar) respectively. Similar results were obtained for PVC groups at thicknesses (1.00, and 0.70) mm.
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