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

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

Povzetek

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.

Ključne besede

single point incremental forming;denture base plate;finite element method (FEM);sheet thinning;microstructure;

Podatki

Jezik:	Angleški jezik
Leto izida:	2021
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UL FS - Fakulteta za strojništvo
UDK:	519.61:658.5(045)
COBISS:	45026819
ISSN:	2238-7854
Št. ogledov:	51
Št. prenosov:	19
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

Sekundarni jezik:	Slovenski jezik
Sekundarni povzetek:	V zadnjih letih so bile na področju medicine in zobozdravstva uvedene številne znanstvene in tehnološke novosti. Uporaba računalniško podprtih inženirskih tehnik je omogočila znatno izboljšanje zasnove in delovanja biomedicinskih komponent, vključno z vsadki in protezami. Inovativne in prilagodljive proizvodne metode, kot je enotočkovno inkrementalno preoblikovanje (SPIF), omogočajo stroškovno učinkovito izdelavo teh komponent izdelanih po meri. Tehnologija SPIF je bila uporabljena za izdelavo kovinske osnovne plošče (ogrodja) celotne maksilarne (zgornje) proteze, ki nadomešča tradicionalni protetični postopek. Ta temelji na "lost-wax" tehniki, ki je dolgotrajna in zahteva veliko ročnega dela. Zaradi biokompatibilnosti, dobrih mehanskih lastnosti in ugodne cene je bila izbrana pločevina iz nerjavečega jekla kakovosti X6Cr17 debeline 0,5 mm. Proces SPIF je bil v celoti zasnovan v digitalnem okolju s poudarkom na doseganju visoke kakovosti in natančnosti dela, čemur je sledila eksperimentalna verifikacija. Za potrditev smo preoblikovanec primerjali glede na geometrijo in mehansko trdnost z referenčnim izdelkom, izdelanim v "lost-wax" tehniki. Dobljeni rezultati so potrdili visoko dimenzijsko natančnost in dobro trdnost izdelka preoblikovanega s SPIF. Eksperimentalne raziskave so vključevale tudi analizo tanjšanja pločevine, hrapavosti površin in mikrostrukture.
Sekundarne ključne besede:	inkrementalno preoblikovanje;osnovna plošča totalne proteze;metoda končnih elementov (MKE);tanjšanje pločevine;mikrostruktura;
Vrsta dela (COBISS):	Članek v reviji
Strani:	str. 605-623
Zvezek:	ǂVol. ǂ10
Čas izdaje:	Jan.-Feb. 2021
DOI:	10.1016/j.jmrt.2020.12.014
ID:	15964555