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Technical Brief

Tool Path Planning for Directional Freezing Based 3D Printing of Nano Materials

[+] Author and Article Information
Chi Zhou

Department of Industrial and Systems Engineering, University at Buffalo, the State University of New York, Buffalo, NY 14260, U.S.A.
chizhou@buffalo.edu

Guanglei Zhao

Department of Industrial and Systems Engineering, University at Buffalo, the State University of New York, Buffalo, NY 14260, U.S.A.
guanglei@buffalo.edu

Dong Lin

Department of Industrial and Manufacturing Systems Engineering, Kansas State University, Manhattan, KS 66506, U.S.A
dongl@ksu.edu

1Corresponding author.

ASME doi:10.1115/1.4038452 History: Received June 12, 2017; Revised September 15, 2017

Abstract

As an emerging and effective nano-manufacturing technology, the directional freezing based 3D printing can form 3-Dimensional (3D) nano-structures with complex shapes and superior functionalities, and thus has received ever increasing publicity in the past years. One of the key challenges in this process is the proper heat management, since the heat induced melting and solidification process significantly affects the functional integrity and structural integrity of the printed structure. A novel approach for heat prediction out of modeling and optimization is introduced in this study. Based on the prediction, we propose a heuristic tool path planning method. The simulation results demonstrate that the tool path planning highly affects the spatial and temporal temperature distribution of the being printed part and the optimized tool path planning can effectively improve the uniformity of the temperature distribution which will consequently enhance the performance of the fabricated nano-structures.

Copyright (c) 2017 by ASME
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