基于磁场连续可调光固化成型机的磁场形式研究

Research on Magnetic Field Form of Continuous Adjustable Light Curing Molding Machine Based on Magnetic Field

基于光固化打印磁性复合材料对各向异性磁性物质的定向排布需要,提出三种不同磁场实现方式的装置,并对不同磁场实现方式的磁性特征进行数值模拟及实验研究,结果表明:矩形永磁体可实现磁性物质在XY平面的规则排列,环形永磁体仅能实现在Z轴方向的规则排列,通电螺线管可以实现任意平面的规则排列,而可调节磁场方向的通电螺线管制备工艺困难,因此选择矩形永磁体作为磁性装置,并通过实验验证了矩形永磁体的仿真结果,同时进行打印实验,打印后磁性碳纤维沿磁感应线方向规则排列。该文针对不同磁场形式的数值模拟与实验探究可为光固化成型工艺中磁性纤维的排布提供理论基础。

Based on the need for directional arrangement of anisotropic magnetic materials in the process of photo curing printing magnetic composites,three devices with different magnetic fields are proposed in this paper,then numerical simulation and experimental research on the magnetic characteristics of different magnetic fields are conducted.The results show that the rectangular permanent magnet can achieve regular arrangement of magnetic carbon fibers in the XY plane,while the annular permanent magnet can only achieve regular arrangement in Z axis;the energized solenoid can realize the regular arrangement on any plane,however,the preparation process of the energized solenoid with adjustable magnetic field direction is difficult.Therefore,the rectangular permanent magnet is selected as the magnetic device,and simulation results of the rectangular permanent magnet are then verified by experiments.At the same time,the printing experiment is carried out.After printing,the magnetic carbon fibers are arranged regularly along the direction of the magnetic induction curve.The numerical simulation and experimental investigation of different magnetic fields in this paper can provide a theoretical basis for the arrangement of magnetic fibers in the UV curing process.