Synchronized material deposition rate control with path velocity on fused filament fabrication machines
Synchronized material deposition rate control with path velocity on fused filament fabrication machines
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DOI：
10.1016/j.addma.2017.05.011
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发表时间：
2018-01-01
影响因子：
11
通讯作者：
Altintas, Yusuf
中科院分区：
文献类型：
--
作者：
Ertay, Deniz Sera;Yuen, Alexander;Altintas, Yusuf
增材制造（AM）技术用于使用热塑性挤出机或基于激光和电子束的金属沉积方法的部件的三维（3D）打印。本文提出了一种集成的方法来规划切向路径速度，材料沉积速率和温度控制的挤出材料是沿着曲线路径沉积。沿路径的切向速度沿着被平滑和优化，同时考虑加热器和挤出机的能力，以及进料驱动器的加加速度、加速度和速度限制。挤出速率被控制成与切向路径速度成比例，同时通过自适应地控制供应到加热器的电流来将沉积的热塑性材料的温度保持在期望的温度。实验证明的算法导致更均匀的材料沉积在尖锐的曲率，从而提高了打印零件的尺寸精度。所提出的方法可以扩展到基于激光和电子束的金属印刷应用。(C)2017爱思唯尔B.V.保留所有权利。
Additive manufacturing (AM) technologies are used in three dimensional (3D) printing of parts using thermo-plastic extruders, or laser and electron beam based metal deposition methods. This paper presents an integrated methodology for planning of tangential path velocity, material deposition rate and temperature control of the extruded material which is deposited along curved paths. The tangential velocity along the path is smoothed and optimized while respecting the heater's and extruder's capacities, as well as the feed drives' jerk, acceleration and velocity limits. The extrusion rate is controlled proportional to the tangential path velocity while keeping the temperature of the deposited thermoplastic material at the desired temperature by adaptively controlling current supply to the heater. The experimentally proven algorithm leads to more uniform material deposition at sharp curvatures and resulting improved dimensional accuracy of printed parts. The proposed methodology can be extended to laser and electron beam based metal printing applications. (C) 2017 Elsevier B.V. All rights reserved.