Vanaei Hamid Reza, Khelladi Sofiane, Tcharkhtchi Abbas
Léonard de Vinci Pôle Universitaire, Research Center, 92916 Paris La Défense, France.
Arts et Métiers Institute of Technology, CNAM, LIFSE, HESAM University, 75013 Paris La Défense, France.
Materials (Basel). 2022 Oct 15;15(20):7193. doi: 10.3390/ma15207193.
Several process variables can be taken into account to optimize the fused filament fabrication (FFF) process, a promising additive manufacturing technique. To take into account the most important variables, a numerical-experimental roadmap toward the optimization of the FFF process, by taking into account some physico-chemical and mechanical characteristics, has been proposed to implement the findings through the thermal behavior of materials. A response surface methodology (RSM) was used to consider the effect of liquefier temperature, platform temperature, and print speed. RSM gave a confidence domain with a high degree of crystallinity, Young's modulus, maximum tensile stress, and elongation at break. Applying the corresponding data from the extracted zone of optimization to the previously developed code showed that the interaction of parameters plays a vital role in the rheological characteristics, such as temperature profile of filaments during deposition. Favorable adhesion could be achieved through the deposited layers in the FFF process. The obtained findings nurture motivations for working on the challenges and bring us one step closer to the optimization objectives in the FFF process to solve the industrial challenges.
为优化熔丝制造（FFF）工艺（一种很有前景的增材制造技术），可以考虑几个工艺变量。为考虑最重要的变量，已提出一条通过考虑一些物理化学和机械特性来优化FFF工艺的数值实验路线图，以便通过材料的热行为来落实研究结果。采用响应面方法（RSM）来考量液化器温度、平台温度和打印速度的影响。RSM给出了一个具有高结晶度、杨氏模量、最大拉伸应力和断裂伸长率的置信域。将从优化提取区域获得的相应数据应用于先前开发的代码表明，参数之间的相互作用在流变特性（如沉积过程中长丝的温度分布）中起着至关重要的作用。在FFF工艺中，通过沉积层可以实现良好的附着力。所获得的研究结果激发了应对挑战的动力，并使我们在解决工业难题方面朝着FFF工艺的优化目标又迈进了一步。
