Modeling and flow analysis of FDM based dual extruder

Abstract

The creation of solid items in three dimensions through the utilization of computer-aided design (CAD) software is the process known as additive manufacturing. The FDM (Fused Deposition Modeling) process is one type of additive manufacturing (AM) process, and the extruder is the most important part of that process. In particular, the design of a multi-material extruder is an example of a typical problem. The purpose of this study is to make an attempt to design a multi-material extruder that can mix materials and colors at the printhead of an FDM process printer. Additionally, a CFD study is carried out with the modeled component in order to comprehend the thermal properties. During material flow in the mixing chamber, a typical temperature distribution and flow analysis can be found. Various fluid flow rates (0.2, 0.5, and 1 mm/sec) were utilized in order to conquer these challenges. According to the findings, the optimal parameters for mixing of PLA and ABS materials are good at a flow rate of 0.5 mm/sec and a simulation time of 50 s.