一种电子增材制造喷墨打印精度的协同控制方法OA

Electronic additive manufacturing technology possesses significant application value in high-precision microelectronics manufacturing.However,the improvement of printing quality is always restricted by the droplet placement inaccuracies caused by speed fluctuations.To address this issue,a collaborative control strategy based on LinuxCNC,termed S-shaped speed planning+fixed-distance injection(SSP-FDI),was proposed.By optimizing the traditional trapezoidal speed algorithm in numerical control systems into an S-shaped speed algorithm,mechani-cal shock can be effectively reduced.Simultaneously,by adopting a fixed-distance triggering mode,the droplet spacing can be accurately controlled,thus mitigating the impact of speed fluctuations on placement accuracy.More-over,an experimental platform integrating five-axis motion control and electronic inkjet printing technology was in-dependently developed,and the corresponding control system was developed.Finally,comparative experiments in-volving multi-angle polylines and electrode printing were designed.The results demonstrate that,as compared with the traditional trapezoidal speed planning+fixed frequency injection(TSP-FFI)strategy,SSP-FDI strategy signifi-cantly reduces droplet placement errors.In a 20 mm×20 mm rectangular electrode printing experiment with a sub-strate temperature of 100℃,the maximum surface roughness of compensated electrodes decreases to 6 µm.Across five substrate temperature groups,the surface roughness of printed samples shows an average reduction of 18.79%and an average resistivity reduction of 18.70%.These findings indicate that the proposed LinuxCNC-based colla-borative control strategy effectively improves the printing quality for complex trajectories,offering a novel technical solution to high-precision additive manufacturing of electronic devices.