Micro-Laser Welding of Plastics for the Applications in Micro-Fluidic Devices
This study aims to investigate laser welding process for the bonding of micro-fluidic devices. PMMA was selected for the investigation. The devices consist of an opaque substrate with micro-channels and a transparent cover. The welding process was optimized according to laser power, welding speed and clamping pressure. The cross-sectional analysis, flow and pressure tests, as well as the lap-shear test were conducted on the samples welded with the optimized process parameters. The results show that the laser welding can meet the requirements for bonding the plastic micro-fluidic devices.
Jianhong Zhao, Masanori Kunieda, Guilin Yang and Xue-Ming Yuan
G. J. Bi et al., "Micro-Laser Welding of Plastics for the Applications in Micro-Fluidic Devices", Key Engineering Materials, Vols. 447-448, pp. 745-749, 2010