Abstract
This paper presents a comparison of the impact of milling technology in the computer numerically controlled (CNC) machining centre and selective laser sintering (SLS) and on the structure and properties of solid Ti6Al4V alloy. It has been shown that even small changes in technological conditions in the SLS manufacturing variant significantly affect changes from two to nearly two and a half times in tensile and bending strengths. Both the tensile and bending strength obtained in the most favourable manufacturing variant by the SLS method is over 25% higher than in the case of cast materials subsequently processed by milling. Plug-and-play SLS conditions provide about 60% of the possibilities. Structural, tribological and electrochemical tests were carried out. In vitro biological tests using osteoblasts confirm the good tendency for the proliferation of live cells on the substrate manufactured under the most favourable SLS conditions. The use of SLS additive technology for the manufacturing of dental implants and abutments made of Ti6Al4V alloy in combination with the digitisation of dental diagnostics and computer-aided design and manufacture of computer-aided design/manufacturing (CAD/CAM) following the idea of Dentistry 4.0 is the best choice of technology for manufacturing of prosthetic and implant devices used in dentistry.
Highlights
Contemporary dentistry requires extensive engineering support consisting of the synergistic use of extensive knowledge in the field of material engineering, manufacturing engineering, and tissue engineering covered by the current stage of Industry 4.0 of the industrial revolution [1,2,3,4,5,6,7]
Industry 4.0 is associated with systematically implemented cyber-physical systems
Charts of of tensile tensile stress versus elongation for individual micro specimens manufactured under different conditions. (a)
Summary
Contemporary dentistry requires extensive engineering support consisting of the synergistic use of extensive knowledge in the field of material engineering, manufacturing engineering, and tissue engineering covered by the current stage of Industry 4.0 of the industrial revolution [1,2,3,4,5,6,7]. 4.0 model, resulting directly from the original reports introducing this approach [2,3,4,5], proved to be incomplete Criticism of this model led to the development of the authors’ extended holistic model Industry 4.0 [1,6,7,10]. This model is located in the current one appropriately extended as one of the four components of the technological plane This technological plane contains materials, technological machines and devices, as well as technological processes together with additive methods that cannot be considered as the only ones needed in modern industry. As part of this approach, Processes 2020, 8, 664; doi:10.3390/pr8060664 www.mdpi.com/journal/processes
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