Technológ - Ročník 17.; Číslo 2/2025

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Opotrebenie strižníkov a ich ostrenie
(University of Žilina, 2025) Moravec, Ján; Melo, Borislav
The paper focuses on the issue of shear wear. Theoretical foundations are presented and an analysis of the issue of sharpening the active parts of the shear tool is also described. Sharpening the shears themselves is an important part of repairing shear tools and their required starting position before setting them on the press.
Ručné obrábanie kovov pilovaním
(University of Žilina, 2025) Moravec, Ján
The presented contribution focuses on the field of manual metal processing using filing technology. Knowledge about the production of files, the geometry of file teeth are presented. Some selected findings from the subject area are presented.
Tvárnenie plechu veľkou uvoľnenou energiou
(University of Žilina, 2025) Moravec, Ján; Melo, Borislav
The paper analyzes an unconventional method of forming sheet metal parts with high energy release. Published diagrams and images together with a physical description of the process illustrate how this technology can be applied to form large-sized sheet metal parts at low production costs. The text presents important mathematical equations that are part of the physical description together with technological parameters. A brief economic evaluation is presented in the conclusion.