Improvement of Technology and Quality-Control of 3DCP (2022-04)¶

10.1007/978-3-031-14623-7_7

Mukhametrakhimov Rustem, Ziganshina Liliya
Contribution - Proceedings of the International Scientific Conference on Socio-Technical Construction and Civil Engineering, pp. 83-97

Abstract

Relevance of the problem being solved is caused by the imperfection of 3DCP products, which is expressed in the formation of defects and deviations, one of the reasons for which is the lack of a quality control system for 3DCP. The purpose of the research is to develop the sequence of operations and control tools for the additive manufacturing (3DCP). Influence of the features of CAD-model preparation, rheological and technological characteristics of the mixture (mobility and yield strength) on the quality of construction products printed on a 3D printer has been studied. It is necessary to take into account the features in the formation of the G-code of a CAD-model to obtain products on a 3D printer with the required length: elongation of the sample by an amount caused by the spreading of the raw mixture, as well as elongation of the sample by the distance from the center of gravity of the extruded raw mixture to its face in the initial and end positions of the nozzle. Nonmobile mixtures are characterized mainly by the formation of defects in the form of geometry violation, violation of linearity, gaps between layers and along the layer length, thickness variation, and the absence of spreading. More mobile mixtures are characterized by a greater degree of formation of defects in the form of geometry violations, violation of linearity, thickness variation, spreading, however, there are no defects as gaps between layers and along the length of the layer. The dependence of the geometric deviations of the length of printed sample, which is a multilayer strip, on the yield strength of the mixture, under constant 3D printing modes, is expressed by a linear function △l =−0.5276 · τ_0 + 168.31. Based on the identified features of 3DCP, the main provisions for the organization and implementation of quality control of 3DCP are proposed, which establish the sequence of operations and means of control during the production of works. Significance of the obtained results for the construction industry is to reduce the defects in 3DCP products by improving the quality control system in additive manufacturing, taking into account the influence of the features of CAD-modeling, rheological and technological characteristics of the mixture, as well as the sequence of operations and control tools during incoming, operational and acceptance control.

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BibTeX

@inproceedings{mukh_ziga.2023.IoTaQCo3,
  author            = "Rustem Kh. Mukhametrakhimov and Liliya Ziganshina",
  title             = "Improvement of Technology and Quality-Control of 3DCP",
  doi               = "10.1007/978-3-031-14623-7_7",
  year              = "2023",
  volume            = "291",
  pages             = "83--97",
  booktitle         = "Proceedings of the International Scientific Conference on Socio-Technical Construction and Civil Engineering",
  editor            = "Nikolai Ivanovich Vatin",
}

Formatted Citation

IEEE

R. K. Mukhametrakhimov and L. Ziganshina, “Improvement of Technology and Quality-Control of 3DCP”, in Proceedings of the International Scientific Conference on Socio-Technical Construction and Civil Engineering, 2023, vol. 291, pp. 83–97. doi: 10.1007/978-3-031-14623-7_7.

CMOS

Mukhametrakhimov, Rustem Kh., and Liliya Ziganshina. “Improvement of Technology and Quality-Control of 3DCP”. In Proceedings of the International Scientific Conference on Socio-Technical Construction and Civil Engineering, edited by Nikolai Ivanovich Vatin, 291:83–97, 2023. https://doi.org/10.1007/978-3-031-14623-7_7.