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首页> 外文期刊>Journal of The institution of engineers (India), Series C >FDM Process Parameter Optimization by Taguchi Technique for Augmenting the Mechanical Properties of Nylon–Aramid Composite Used as Filament Material
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FDM Process Parameter Optimization by Taguchi Technique for Augmenting the Mechanical Properties of Nylon–Aramid Composite Used as Filament Material

机译：FDM工艺参数优化Taguchi技术用于增强用作灯丝材料的尼龙 - 芳纶复合材料的机械性能

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Fused deposition modelling (FDM) is one such technique of additive manufacturing (AM) that deposits the extruded thermoplastic material layer by layer to build the desired part. The study is focused on the introduction of new thermoplastic material that widens the application of FDM process and also to use the part for functional purpose rather than just the prototype. Nylon is used as the feed filament material for FDM due to its higher mechanical properties and wear resistant characteristics that are often used as sliding bearing. The properties of nylon are further enhanced by adding the aramid short fibres. In this investigation, the process parameter optimization of FDM process is performed by using Gray Taguchi technique for the quality and mechanical characteristics enhancement. Layer thickness, print temperature, raster angle, infill part density and infill pattern style were considered as the influencing factors for optimization. Mechanical properties including tensile strength, flexural strength, impact strength and compression strength (responses) were studied for the designed experiments which were conducted according to ASTM standards. Analysis of variance was performed using Minitab 18 software to understand the signal-to-noise ratio for the respective objective. The overall combined objective is framed by providing equal importance to all the four responses. From the analysis, the following factors were identified as the optimum settings, layer thickness of 0.4?mm, print temperature of 300?°C, infill part density of 90%, raster angle of 90° and infill pattern style of rectilinear. The results from the test sample printed at the determined optimum setting has exhibited tensile strength of 51.455?MPa, flexural strength as 98.164?MPa impact strength of 0.637?MJ/sq m, compressive strength as 19.42?MPa. The test result of the parts printed from pure nylon as per the prescribed standard setting exhibited tensile strength of 48?MPa, flexural strength as 80.5?MPa, impact strength as 0.51?MJ/sq m and compression strength as 18.12?MPa. A significant increase by 7.2% in tensile strength, 22.7% in flexural strength, 27.4% in impact strength and 7.5% in compressive strength were noticed. From the investigation, it was possible to conclude that even short fibre composites can also be used as FDM raw materials and valid predictions can be made using regression equations with very less error and is justified by experimental trails.
机译：熔融沉积建模（FDM）是一种添加剂制造（AM）的一种这种技术，其沉积挤出的热塑性材料层通过层沉积以构建所需的部分。该研究专注于引入新的热塑性材料，这些热塑性材料扩展了FDM过程的应用，也可以使用该部件来用于功能目的而不是原型。由于其较高的机械性能和耐磨特性，尼龙用作FDM的FDM，并且耐磨性地用作滑动轴承。通过加入芳族聚酰胺短纤维进一步增强尼龙的性质。在本研究中，通过使用Gray Taguchi技术进行FDM工艺的过程参数优化，以进行质量和机械特性增强。层厚度，打印温度，光栅角，填充部分密度和填充图案样式被认为是优化的影响因素。研究了根据ASTM标准进行的设计实验，研究了包括拉伸强度，弯曲强度，冲击强度和压缩强度（响应）的机械性能。使用Minitab 18软件进行差异分析，以了解各目标的信噪比。整体联合目标是通过对所有四项响应提供平等重视的框架。从分析中，下列因素被识别为最佳设置，层厚度为0.4ΩΩ·mm，打印温度为300Ω·℃，填充部分密度为90％，射门角度为90°和填充图案的直线图案样式。在确定的最佳设定下印刷的测试样品的结果表现出51.455Ω·mpa的拉伸强度，弯曲强度为98.164Ω·mpa冲击强度为0.637μm/ sq m，压缩强度为19.42μm≤mpa。根据规定的标准设置从纯尼龙印刷的部件的测试结果表现出48ΩMPa的拉伸强度，弯曲强度为80.5Ωmpa，冲击强度为0.51Ω/ sq m和压缩强度为18.12μm≤mpa。抗拉强度的显着增加7.2％，弯曲强度22.7％，冲击强度为27.4％，抗压强度为7.5％。从调查中，可以得出结论，即使是短纤维复合材料也可以用作FDM原材料，并且可以使用具有极少误差的回归方程来制造有效预测，并且通过实验迹线是合理的。

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