Characterisation of geometrical and physical properties of a stainless steel denture framework manufactured by single-point incremental forming

Milutinović, Mladomir (author), Lendjel, Robert (author), Baloš, Sebastian (author), Labus Zlatanović, Danka (author), Sevšek, Luka (author), Pepelnjak, Tomaž (author)

In recent years, numerous scientific and technological innovations have been introduced in the fields of medicine and dentistry. The application of computer-based engineering techniques has enabled significant improvement in the design and performance of biomedical components, including implants and prostheses. Innovative and flexible manufacturing methods, such as single point incremental forming (SPIF), allow the cost-effective production of these "custom-made" components. The SPIF technology has been employed to manufacture a metal denture base plate (framework) of a complete maxillary (upper) denture to replace a traditional prosthodontic procedure based on a lost-wax technique, which is time-consuming and requires much manual work. Stainless steel sheet of quality X6Cr17 and thickness of 0.5 mm was adopted due to its biocompatibility, good mechanical properties, and reasonable price. The SPIF process was completely designed in a digital environment with a focus on achieving high quality and accuracy of the part followed by experimental verification. For validation, the formed part was compared in terms of the geometry and mechanical strength with the reference one fabricated using the lost-wax technique. The results obtained confirmed the high dimensional accuracy and good strength of the SPIF-made part. The experimental investigations also included analysis of sheet thinning, surface roughness, and microstructure.

• Language: English
• Keywords: single point incremental forming, denture base plate, finite element method, FEM, sheet thinning, microstructure
• Work type: Article
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Year: 2021
• Number of pages: Str. 605-623
• Numbering: Vol. 10
• PID: 20.500.12556/RUL-138451
• UDC: 519.61:658.5(045)
• ISSN on article: 2238-7854
• DOI: 10.1016/j.jmrt.2020.12.014
• COBISS.SI-ID: 45026819
• Publication date in RUL: 21.07.2022

Record is a part of a journal

• Title: Journal of materials research and technology
• Shortened title: J. mater. res. technol.
• Publisher: Elsevier
• ISSN: 2238-7854
• COBISS.SI-ID: 519699737

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: inkrementalno preoblikovanje, osnovna plošča totalne proteze, metoda končnih elementov, MKE, tanjšanje pločevine, mikrostruktura

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0248
• Name: Inovativni izdelovalni sistemi in procesi

• Funder: ARRS - Slovenian Research Agency
• Project number: J2-2511
• Name: Prilagodljivo utrjevanje površin avstenitnih jekel s procesi kriogenega preoblikovanja