Pengaruh Perubahan Geometri Heat sink Terhadap Karakteristik Perpindahan Panas Mosquito Hotend Fdm 3D Printer

Fadhlurrohman, Rafi (2024) Pengaruh Perubahan Geometri Heat sink Terhadap Karakteristik Perpindahan Panas Mosquito Hotend Fdm 3D Printer. Masters thesis, Institut Teknologi Sepuluh Nopember.

Text 6007231014-Master_Thesis.pdf - Accepted Version Restricted to Repository staff only until 1 April 2026. Download (5MB) | Request a copy

Abstract

Teknologi 3D Printing menjadi salah satu metode manufaktur yang berkembang untuk saat ini. Proses FDM 3D Printing berawal dari filamen yang masuk ke dalam daerah liquifier melalui throat dengan menggunakan mekanisme feed filament. Pada proses ini sering terjadi permasalahan yaitu clogging pada komponen hotend. Fenomena clogging terjadi akibat filamen yang lebih dulu meleleh sebelum mencapai melting zone. Pada penelitian ini akan dilakukan studi numerik untuk meninjau terkait distribusi temperatur heat sink pada Mosquito Hotend, serta pengaruh variasi geometri heat sink pada hotend. Berdasarkan hasil simulasi, didapatkan bahwa terjadi peningkatan temperatur pada filamen pada daerah cold zone akibat heat sink yang sudah memiliki temperatur yang cukup tinggi. Hal ini meningkatkan posisi dan jarak transition zone, sehingga memperbesar kemungkinan terjadinya clogging. Distribusi temperatur yang terjadi secara asimetris menyebabkan proses pelelehan yang tidak merata dari filamen. Berdasarkan variasi geometri, performa fin bentuk circular lebih baik dalam mendisipasikan panas dibanding geometri normal dan rectangular. Hal ini dipengaruhi oleh kecepatan aliran pada circular fin lebih cepat dibanding geometri lainnya, sehingga memberikan performa disipasi panas yang lebih baik.
=================================================================================================================================
Technology of 3D Printing is one of the growing manufacturing methods today. The FDM 3D Printing process starts with the filament entering the liquifier area through the throat using a filament feed mechanism. In this process, problems often occur, namely clogging in hotend components. The clogging phenomenon occurs due to the filament melting before reaching the melting zone. In this research, a numerical study will be conducted to review the heat sink temperature distribution on the Mosquito Hotend, as well as the effect of heat sink geometry variations on the hotend. Based on the simulation results, it is found that there is an increase in filament temperature in the cold zone region due to the heat sink which already has a high enough temperature. This increases the position and distance of the transition zone, thus increasing the possibility of clogging. Asymmetrical temperature distribution causes uneven melting of the filament. Based on geometry variation, circular fin shape performs better in dissipating heat than normal and rectangular geometry. This is influenced by the flow velocity on the circular fin is faster than other geometries, thus providing better heat dissipation performance.

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	3D Printing, FDM, Heat sink
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers T Technology > TJ Mechanical engineering and machinery > TJ265.E23 Thermodynamics.
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21101-(S2) Master Thesis
Depositing User:	Rafi Fadhlurrohman
Date Deposited:	09 Feb 2024 18:05
Last Modified:	09 Feb 2024 18:05
URI:	http://repository.its.ac.id/id/eprint/106636

Actions (login required)

View Item