Abstract

Fused deposition modeling (FDM) is an additive manufacturing (AM) technique that has emerged as a suitable application in different areas, including machine design and manufacturing. The main advantages of this method over conventional methods include that it is faster and produces less material waste. Besides, AM offers computer-aided design and manufacturing but does not include any limitations on the product's geometry and does not require any extra tools. End milling is a conventional manufacturing process used for profiling, slotting, and facing. In this study, at the point of overcoming the weaknesses of AM surface quality, it was investigated whether the cast polymer's surface quality could be reached with hybrid manufacturing (AM + milling). For this reason, the parts produced by FDM were subjected to end milling, and the effect of cutting depth, feed rate, and rotation speed on surface quality and chip type were investigated. The results obtained are compared with the results of the milling operation of cast polyamide. For all results, surface quality increases with a rising feed rate. In general, the surface quality obtained by milling parts produced using FDM is low, but each manufacturing technique is affected differently by the end milling conditions. Low rotation speed and high feed rates should be preferred to obtain the desired surface quality from FDM printed polyamide parts.

摘要

熔融沉积建模 (FDM) 是一种增材制造 (AM) 技术，已成为不同领域的合适应用，包括机器设计和制造。这种方法与传统方法相比的主要优点包括速度更快，产生的材料浪费更少。此外，AM 提供计算机辅助设计和制造，但对产品的几何形状没有任何限制，也不需要任何额外的工具。端铣是一种用于仿形、开槽和端面的传统制造工艺。在这项研究中，在克服增材制造表面质量的弱点上，研究了混合制造（增材制造+铣削）是否可以达到浇铸聚合物的表面质量。为此，FDM 生产的零件经过端铣，并研究了切削深度、进给速度和转速对表面质量和切屑类型的影响。将所得结果与浇铸聚酰胺的铣削操作结果进行比较。对于所有结果，表面质量随着进给速率的提高而提高。一般来说，使用 FDM 生产的铣削零件获得的表面质量较低，但每种制造技术受端铣削条件的影响不同。为了从 FDM 打印的聚酰胺部件获得所需的表面质量，应首选低转速和高进给速率。使用 FDM 生产的铣削零件获得的表面质量较低，但每种制造技术受端铣削条件的影响不同。为了从 FDM 打印的聚酰胺部件获得所需的表面质量，应首选低转速和高进给速率。使用 FDM 生产的铣削零件获得的表面质量较低，但每种制造技术受端铣削条件的影响不同。为了从 FDM 打印的聚酰胺部件获得所需的表面质量，应首选低转速和高进给速率。