Real-Time Cooling Rate Characterization in Fused Deposition Modeling Using a Non-Contact Infrared Temperature Sensor
DOI:
https://doi.org/10.61952/jlabw.v2i3.566Keywords:
Thyroid Hormones, Chronic Kidney Disease (CKD), Renal Failure, Hemodialysis, Thyroid Dysfunction, Kidney FunctionAbstract
Temperature history during the Fused Deposition Modeling (FDM) process is a critical factor influencing the cooling dynamics of the extruded filament, interlayer adhesion, and final part quality. Traditional contact-based sensors such as K-type thermocouples face limitations including low sampling rate and interference with the process, making them unsuitable for capturing rapid solidification events of materials like PLA. This study presents a real-time experimental investigation of the cooling rate of polylactic acid (PLA) during fused deposition modeling (FDM) using a non-contact infrared sensor, the MLX90614 infrared temperature sensor. A low-cost Arduino-based data acquisition system was developed to monitor the transient thermal behavior of the deposited filament immediately after extrusion. The sensor was positioned in a trailing configuration relative to the nozzle to capture post-deposition temperature evolution without interfering with the printing process. Cooling rate was quantified using numerical differentiation of time-resolved temperature data. The results reveal a highly transient cooling regime characterized by steep initial thermal gradients followed by asymptotic decay. The findings highlight the critical role of early-stage cooling in governing interlayer bonding and provide a practical framework for thermal monitoring and process optimization in FDM.
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