Portoacă Alexandra Ileana, Ripeanu Razvan George, Diniță Alin, Tănase Maria
Mechanical Engineering Department, Petroleum-Gas University of Ploiești, 100680 Ploiești, Romania.
Polymers (Basel). 2023 Aug 16;15(16):3419. doi: 10.3390/polym15163419.
In recent years, there has been a growing interest in the field of 3D printing technology. Among the various technologies available, fused deposition modeling (FDM) has emerged as the most popular and widely used method. However, achieving optimal results with FDM presents a significant challenge due to the selection of appropriate process parameters. Therefore, the objective of this research was to investigate the impact of process parameters on the tribological and frictional behavior of acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA) 3D-printed parts. The design of experiments (DOE) technique was used considering the input design parameters (infill percentage and layer thickness) as variables. The friction coefficient values and the wear were determined by experimental testing of the polymers on a universal tribometer employing plane friction coupling. Multi-response optimization methodology and analysis of variance (ANOVA) were used to highlight the dependency between the coefficient of friction, surface roughness parameters, and wear on the process parameters. The optimization analysis revealed that the optimal 3D printing input parameters for achieving the minimum coefficient of friction and linear wear were found to be an infill percentage of 50% and layer thickness of 0.1 mm (for ABS material), and an infill percentage of 50%, layer thickness of 0.15 mm (for PLA material). The suggested optimization methodology (which involves minimizing the coefficient of friction and cumulative linear wear) through the optimized parameter obtained provides the opportunity to select the most favorable design conditions contributing to a more sustainable approach to manufacturing by reducing overall material consumption.
近年来，人们对3D打印技术领域的兴趣与日俱增。在现有的各种技术中，熔融沉积建模（FDM）已成为最受欢迎且应用最广泛的方法。然而，由于要选择合适的工艺参数，要通过FDM获得最佳结果面临重大挑战。因此，本研究的目的是调查工艺参数对丙烯腈丁二烯苯乙烯（ABS）和聚乳酸（PLA）3D打印部件的摩擦学和摩擦行为的影响。考虑输入设计参数（填充率和层厚）作为变量，采用实验设计（DOE）技术。通过在采用平面摩擦耦合的通用摩擦磨损试验机上对聚合物进行实验测试来确定摩擦系数值和磨损情况。使用多响应优化方法和方差分析（ANOVA）来突出摩擦系数、表面粗糙度参数和磨损与工艺参数之间的相关性。优化分析表明，实现最小摩擦系数和线性磨损的最佳3D打印输入参数为：填充率50%、层厚0.1毫米（用于ABS材料），以及填充率50%、层厚0.15毫米（用于PLA材料）。通过获得的优化参数所建议的优化方法（即最小化摩擦系数和累积线性磨损）提供了选择最有利设计条件的机会，有助于通过减少整体材料消耗实现更可持续的制造方法。
