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- Title
Využití aditivní technologie 3D tisku s možností povrchové úpravy součásti pro stroje na sklizeň a manipulaci s cukrovou řepou.
- Authors
Votava, Jiří; Lozrt, Jaroslav; Henzl, Radovan; Dostál, Petr; Čupera, Jiří
- Abstract
Sugar beet harvesting machinery and individual post-harvest lines are subject to considerable abrasive and erosive wear due to the interaction of solid and loose particles. For this reason, tests were performed not only using materials that are able to withstand the increased abrasive load, but also technologies that can respond flexibly to the demand of predominantly complex components or assemblies. The presented experiment compares the mechanical test results of a standard PA6 polyamide with samples produced using additive 3D printing technology. The filament chosen for the production of the samples was in the form of polylactide filaments PLA and polyethylene terephthalate glycol PETG. Both materials underwent post processing treatment in the form of chemical smoothing. Mechanical testing was performed according to EN ISO 2039-1 (ball indentation) and Charpy hammer bending impact test EN 10045-1. As for the abrasive wear stress test, the grinding jar method was opted for. The used abrasive medium was ceramic grit with a fraction size of 10 mm; that is a relatively aggressive abrasive medium that causes significant micro-roughening, mainly in softer materials. The reason this medium was chosen are its similar abrasive characteristics to soil particles with higher skeletonisation. Based on the results obtained, the tests show a good correlation. They clearly confirmed the effect of chemical smoothing of the surface layers on the reduction of the abrasive wear of the tested materials. However, it is important to note that all tests were carried out under ideal laboratory conditions where well-defined physical conditions are applied to the samples. For this reason, real operating conditions are irreplaceable.
- Subjects
FRETTING corrosion; SUGAR beets; THREE-dimensional printing; HARVESTING equipment; CONVEYING machinery
- Publication
Listy Cukrovarnicke a Reparske, 2023, Vol 139, Issue 11, p348
- ISSN
1210-3306
- Publication type
Article