Coordination Control of Positioning and Deposition in Layered Manufacturing

In fused-deposition (FD)-based layered manufacturing processes, the fabrication of functional part requires very high layer quality, which demands not only positioning precision but also deposition accuracy. Current FD techniques cannot realize an accurate deposition due to the lack of interaction between the positioning process and the deposition process. To achieve a high degree of deposition accuracy, a coordination controller is proposed, which tracks the variation of the X-Y table speed in real time and regulates the material flow rate accordingly. The simulation results demonstrate the effectiveness of the proposed approach