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Single-Spark Analysis of Electro-Discharge Deposition Process

机译：放电沉积过程的单火花分析

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摘要

Electro-discharge deposition (EDD) process is one of the newly developing, nonlithographic additive manufacturing methods to fabricate 3D microproducts. The advantage of the EDD process is that 3D microcomponents can be manufactured from the materials which are electrically conductive in nature. In this paper, a comprehensive attempt to develop a thermophysical model for single discharge deposition process has been reported. Experiments are designed and conducted by central composite design (CCD) and the obtained results are compared with simulation results. Parametric analysis is carried out to study the effects of EDD process parameters like current, pulse-on time, and duty factor on height, width, and weight of deposition. The objective of this research work is to simulate and predict the material deposition mechanism of EDD process in a single pulse. Simulation results are compared with experimental results and it is found that the developed model can predict results which are closer to experimental results. It is concluded from the results that the thermophysical model can be further modified to establish EDD process with optimum process parameters.
机译：放电沉积（EDD）工艺是一种新兴的非光刻增材制造方法，用于制造3D微产品。 EDD工艺的优势在于，可以用自然导电的材料制造3D微型组件。在本文中，已经报道了为单次放电沉积过程开发热物理模型的综合尝试。通过中央复合设计（CCD）设计和进行实验，并将获得的结果与仿真结果进行比较。进行参数分析以研究EDD工艺参数（例如电流，脉冲接通时间和占空比）对沉积的高度，宽度和重量的影响。这项研究工作的目的是在单个脉冲中模拟和预测EDD工艺的材料沉积机理。将仿真结果与实验结果进行比较，发现开发的模型可以预测更接近实验结果的结果。结果表明，可以进一步修改热物理模型以建立具有最佳工艺参数的EDD工艺。

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