Additive Technologies and Materials for Realization of Elastic Elements

Besnea, Daniel; Rizescu, Dana; Rizescu, Ciprian Ion; Dinu, Elena; Constantin, Victor; Moraru, Edgar

doi:10.1007/978-3-319-96358-7_7

Cited by 6 publications

(5 citation statements)

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“…Nowatorskie podejście do indywidualnego dopasowywania okularów do twarzy zaproponowano w pracy [3], a wytworzenie produktu odbywać się może z wykorzystaniem druku 3D. Przykładowo w pracy [4] opisano sposób wykonania opraw okularów z materiałów ABS i PLA z użyciem technologii addytywnej FDM. W artykule [5] opisano wyniki doświadczalnych badań wytrzymałości okularów ochronnych w aspek-cie zapewnienia ochrony wzroku w sytuacjach wypadkowych.…”

Section: Wprowadzenieunclassified

Methodology of selected strength tests of glasses frames

Bąk,

Jagiełowicz,

Połowniak

et al. 2023

Mechanik

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Section: Wprowadzenieunclassified

Methodology of selected strength tests of glasses frames

Bąk,

Jagiełowicz,

Połowniak

et al. 2023

Mechanik

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“…Within each of these subcategories, there are varieties of springs to choose from. To resist torsion, compressive, or tensile loads, wire springs are often constructed as helical springs using either square or round wire [3]. Although helical springs can have cross-section wires that are circular, rectangular, or square, the circular cross-section is the one that is most frequently utilized.…”

Section: Introductionmentioning

confidence: 99%

Development of a computational system to design a helical spring

Kamil,

Abdulshaheed,

Kadhom

2024

IRASE

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Springs are the most basic mechanical elements used in transmission mechanisms. The rapid development of the computer and cellular industry has encouraged spring manufacturers to develop the industry to produce very small springs. Most computer-aided design programs for mechanical parts provide the possibility of designing these parts, as these programs include different types of decisions. All these decisions require coordinates for geometric data as well as metadata. The paper aims to develop software programs to design and analyze springs as one of the most significant mechanical elements used. This paper aims to develop a design software of a helical spring system, where this software is built using a computer program in the language of Visual Basic Version 5. When the user enters data into the system, the system will perform a series of complex calculations in the system, then provide a detailed report on all the engineering dimensions of the spring, and test its efficiency. The output of the software shows the required spring wire parameters. The software was tested with test data from the open literature, and the required wire spring parameters were obtained.

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“…Some authors have evaluated which factors allow achieving the best rankings in all hedonic, tactile and visual assessments of FDM 3D printed parts [17]; in the tactile and visual evaluations, the authors conclude that the pieces with the highest scores are those with the lowest values of surface roughness. On the other hand, the surface finish is crucial when printed parts are in contact with human skin, as is the case with frame glasses [18].…”

Section: Introductionmentioning

confidence: 99%

“…However, there are people with such a facial morphology that they cannot find glasses in the optical shops. By means of 3D printing, it is possible to manufacture customized frames [30], in biodegradable materials such as PLA [18]. One of the most important specifications of a frame glasses is the surface finish, for aesthetic reasons and to reduce friction with the skin of the user.…”

Section: Introductionmentioning

confidence: 99%

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Use of Data Mining Techniques for the Prediction of Surface Roughness of Printed Parts in Polylactic Acid (PLA) by Fused Deposition Modeling (FDM): A Practical Application in Frame Glasses Manufacturing

et al. 2020

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In the present work, ten data mining algorithms have been used to generate models capable of predicting the surface roughness of parts printed on polylactic acid (PLA) by using fused deposition modeling (FDM). The models have been trained using experimental data measured on 27 horizontal (XY) and 27 vertical (XZ) specimens, printed using different values for the parameters studied (layer height, extrusion temperature, print speed, print acceleration and flow). The models generated by multilayer perceptron (MLP) and logistic model trees (LMT) have obtained the best results in a cross-validation. Although it does not obtain such optimal results, the J48 algorithm (C4.5) allows the generation of models in the form of a decision tree. These trees permit to determine which print parameters have an influence on the surface roughness. For XY specimens, the surface roughness measured in the direction parallel to the extrusion path (Ra,0,XY ) depends on the flow, the print temperature and the layer height; in the direction perpendicular to the extrusion path, the surface roughness (Ra,90,XY) depends only on the flow. For XZ specimens, the surface roughness measured in the direction parallel to the extrusion path (Ra,0,XZ) depends only on the print speed; in the direction perpendicular to the extrusion path (Ra,90,XZ), it depends on the layer height and the extrusion temperature. According to the study carried out, the most suitable set up provides values of Ra,0,XY, Ra,90,XY, Ra,0,XZ and Ra,90,XZ equal to 0.46, 1.18, 0.45 and 11.54, respectively. A practical application of this work is the manufacture of PLA frame glasses using FDM.

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Additive Technologies and Materials for Realization of Elastic Elements

Cited by 6 publications

References 0 publications

Methodology of selected strength tests of glasses frames

Methodology of selected strength tests of glasses frames

Development of a computational system to design a helical spring

Use of Data Mining Techniques for the Prediction of Surface Roughness of Printed Parts in Polylactic Acid (PLA) by Fused Deposition Modeling (FDM): A Practical Application in Frame Glasses Manufacturing

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