碳纤维长纤3D打印的连续性路径规划算法

Continuous Path Planning Algorithm for Carbon Fiber Composite Material 3D Printing

碳纤维长纤复合材料3D打印过程中,由于纤维连续性的特点,需要对其成型路径进行合理规划,减少断点跳转。传统三维模型切片处理的方式是顺序往返直线填充,所生成路径的跳转点较多,不适合连续性纤维3D打印。针对问题,提出方向可调的“Z”字填充算法,采用填充角度动态可调的平行线扫描填充方式,并将相关联交线按照奇偶原则连接,减少跳转,实现路径连续最大化。不同形状三维模型切片处理实验表明新算法能够减少3D打印路径跳转率60%以上,满足长纤维3D打印连续性的要求,为碳纤维长纤3D打印的应用奠定了基础。

In the process of carbon fiber composite material 3D printing,a reasonable path planning is indispensable to reduce breakpointsdue to the characteristics of the long fiber continuity.The traditional three-dimensional slicing using the straight parallel scanlines filling algorithmleads to more breakpoints,so it is not suitable for carbon fiber composite material 3D printing.For this problem,the direction adjustable‘Z’filling algorithm is put forward,which uses the filling algorithm of dynamical adjustable angle of parallel scanlines and connects the associated cross-connection lines by the odd-even rule to reduce breakpoints.Different three-dimensional slicing experiments reveal the new algorithm reduces the breakpoints rate up to 60%,which can meet the requirements of long fiber 3D printing and also laid the foundation for the carbon fiber 3D printing applications.