Influence investigation of technological conditions of 3D-printing on antiadhesion properties of master-model surfaces

2021 ◽  
Vol 0 (9) ◽  
pp. 8-12
Author(s):  
A. O. Dvoryankin ◽  
◽  
I. S. Nefyolov ◽  
N. I. Baurova ◽  
◽  
...  

It is shown that one of the promising methods to prepare a master-model for the casting production of engineering industry products is FDM 3D-printing. The influence of technological conditions of 3D-printing on antiadhesion properties of surfaces has been studied. By experiments it was found out that for 3D-printing of master-models it was necessary to have conditions in which the parameter of filling percent was more than 60%. Recommendations for the use of 3D-printing methods for production of casting molds are given.

2021 ◽  
Vol 0 (9) ◽  
pp. 17-21
Author(s):  
O. A. Dvoryankin ◽  
◽  
N. I. Baurova ◽  

Analysis of 3D-printing methods used in the molding production to manufacture master-models has been carried out. The technology was selected, which allowed one to make high-precision parts, combining the molding and the 3D-printing. Factors effecting on the quality of 3D-models printed by this technology were analyzed. Experimental studied for determination of the printing parameter influence (layer thickness, filling percentage, printing velocity) on ultimate strength of specimens made of ABS-plastic were carried out.


2019 ◽  
Author(s):  
Sueli Mukai ◽  
Eduardo Mukai ◽  
Jamil Awad Shibli DDS ◽  
GABRIELA GIRO

Abstract Objective: The aim of the present study was to evaluate the reproducibility and precision of two types of surgical guides, obtained by using 3D printing and milling methods. Methods: A virtual model was developed, which allowed the virtual design of surgical guide project that were milled (n = 10) or 3D printing (n = 10). Surgical guides were digitally oriented and overlapped on the virtual model that had generated them. For milling guides, it was used the Sirona Dentsply system, while 3D printing guides were produced at the Perfactory P4K Life Series, the EnvisionTEC's E-Guide Tint. In this way, average mismatches from the master model were determined. Moreover, coefficients of variation, root mean square deviations, and mismatches during an overlap were evaluated after obtaining individual misalignments for each guide, in order to verify the reproducibility of the guides and the precision of the methods for obtaining the guides Results: The evaluations showed that both groups presented the same degree of mismatch during overlap, with no statistically significant differences between the groups. However, the intragroup evaluation for misalignment, 3D printing surgical guides had a higher coefficient of variation than the milled guides, since a statistically significant difference was observed between groups in the RMS of the guide from the master model. Conclusions: Milling of the guides resulted in smaller misalignments from the master model.


2018 ◽  
Vol 206 ◽  
pp. 01008
Author(s):  
Kang Tan

Construction 3D printing is becoming a significant force driving the transformation of civil engineering industry, but facing many problems for its immaturity. At the same time, the development of artificial intelligence and other advanced technology, especially BIM and virtual reality technology, provides new methods for solving these problems. Based on the defects of construction 3D printing and the advantages of these technology, this paper proposes a framework that combines artificial intelligence with construction 3D printing in five aspects: materials for 3D printing, automation design for 3D printing, digital construction for 3D printing, robots for 3D printing and BIM platform system for 3D printing. BIM platform system associates with the other aspects to work together efficiently during the life cycle of construction.


Nature ◽  
2013 ◽  
Vol 494 (7436) ◽  
pp. 174-174 ◽  
Author(s):  
Michael Pawlyn
Keyword(s):  

Nature ◽  
2020 ◽  
Vol 588 (7839) ◽  
pp. 594-595
Author(s):  
Cameron Darkes-Burkey ◽  
Robert F. Shepherd
Keyword(s):  

Author(s):  
Thomas Birtchnell ◽  
William Hoyle
Keyword(s):  

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