scholarly journals Finite element analysis of the thermal behavior of a RepRap 3D printer liquefier

Mechatronics ◽  
2016 ◽  
Vol 36 ◽  
pp. 119-126 ◽  
Author(s):  
R. Jerez-Mesa ◽  
J.A. Travieso-Rodriguez ◽  
X. Corbella ◽  
R. Busqué ◽  
G. Gomez-Gras
Optik ◽  
2020 ◽  
Vol 208 ◽  
pp. 164128 ◽  
Author(s):  
Mobin Majeed ◽  
Murat Vural ◽  
Sufian Raja ◽  
M. Bilal Naim Shaikh

2018 ◽  
Vol 15 (2) ◽  
pp. 663-665 ◽  
Author(s):  
Nor Aiman Sukindar ◽  
Mohd Khairol Anuar Mohd Ariffin ◽  
B.T. Hang Tuah Baharudin ◽  
Che Nor Aiza Jaafar ◽  
Mohd Idris Shah Ismail

Open-source 3D printer has been widely used for fabricating three dimensional products. However, this technology has some drawbacks that need to be improved such as accuracy of the finished parts. One of the factors affecting the final product is the ability of the machine to extrude the material consistently, which is related to the flow behavior of the material inside the liquefier. This paper observes the pressure drop along the liquefier by manipulating the nozzle die angle from 80° to 170° using finite element analysis (FEA) for polymethylmethacrylate (PMMA) material. When the pressure drop along the liquefier is varied, the printed product also varies, thus providing less accuracy in the finished parts. Based on the FEA, it was found that 130° was the optimum die angle (convergent angle) for extruding PMMA material using open-source 3D printing.


2019 ◽  
Vol 257 ◽  
pp. 02004
Author(s):  
Zhenhai Huang ◽  
Tingchun Shi ◽  
Xiuyan Yue

In view of the forming accuracy of the 3D printer, the paper, from the structure of the printer itself, discussed the influence on the precision of the printer via improving the structure of 3D printer. A typical 3D printer, such as a common type of FDM, was selected, and SOLIDWORKS software was used for solid modeling, after establishing the model, the finite element analysis was carried out on the whole structure model to obtain the deformation characteristics and the main vibration model of the printer. On the basis of finite element analysis, the influence of the level shaft bearing diameter, material properties and symmetry of the parts on the overall mechanical properties of the printer was discussed respectively. On this basis, the overall structure of the machine has been optimized and achieved remarkable results.


Optik ◽  
2020 ◽  
Vol 207 ◽  
pp. 163760 ◽  
Author(s):  
Junfeng Li ◽  
Zhengying Wei ◽  
Lixiang Yang ◽  
Bokang Zhou ◽  
Yunxiao Wu ◽  
...  

2016 ◽  
Vol 36 (3) ◽  
pp. 95
Author(s):  
Diego Manuel Medina Carril ◽  
José Gonzalo Carrillo Baeza ◽  
Ruben Dominguez Maldonado ◽  
Francis Aviles Cetina

The thermal behavior of an absorber plate in a solar collector is investigated using finite element analysis. The thermal behavior and efficiency of two absorber plate geometries are studied, using a typical solar collector with a rectangular profile as reference, and a proposed absorber plate with curved geometry. An analysis of the most important parameters involved in the design of the absorber plate was carried out, indicating that the curved geometry of the absorber plate yields an average efficiency ~25% higher than the conventional rectangular geometry. The results suggest that a curved profile made of materials such as aluminum with thermal conductivity higher than 200W/m°C, plate thickness of the order of 2-3mm and with a large density of tubes per unit area of the collector´s plate greatly benefits the thermal efficiency of the solar collector.


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