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Problematika prostřihování otvoru dvouvrstvým polotovarem / Hole punching problematics of two layered sheet metal

The thesis is focussed on project of a tool – a hot working clipping punch, where the hole is punched in the upsetting ends of stabilizer. We talk about punching of a two layered semi-finished product, in which burr is formed at the layer interface, which is undesirable from the point of the customer requirement. The stabilizer is mounted in the car chassis, where it is fastened to the axle with screws. The literature study is focused on the theory and problems of punching. In the practical part, several design solutions of cutter faces are discussed, from which three types of face shape were selected. This was associated with a change in the design of the ejector. Two tool materials were selected for comparison. The cutters were tested on an automatic forming centre. Finally, after summarizing and evaluating all the practical experiments, an optimal solution of a tool designed for punching a hole with a two layered semi-finished product is proposed.

Identiferoai:union.ndltd.org:nusl.cz/oai:invenio.nusl.cz:416437
Date January 2020
CreatorsKvapil, Štěpán
ContributorsPeterková, Eva, Císařová, Michaela
PublisherVysoké učení technické v Brně. Fakulta strojního inženýrství
Source SetsCzech ETDs
LanguageCzech
Detected LanguageEnglish
Typeinfo:eu-repo/semantics/masterThesis
Rightsinfo:eu-repo/semantics/restrictedAccess

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