New Methodology for Predicting the Cracking Phenomenon in the Radial Extrusion Process of Hollow Parts with a Flange

• Autorzy: Winiarski Grzegorz , Samołyk Grzegorz

Identyfikatory

DOI

10.12913/22998624/163108

• Języki publikacji: EN

Abstrakty

EN

The selected issue of flange cracking in the radial extrusion process of hollow parts has been discussed in this paper. The researches were carried out based on numerical calculations in the Deform 3D software and experimental tests, which were carried out using pipe billets made of aluminum alloy EN AW 6063. A new methodology has been developed that allows to determine the place and approximate moment of material cohesion loss. This is determined from the results of the FEM calculation only, and does not require calibration tests. The method is based on a detailed analysis of the state of stress, state of strain in the forging, and is focused on identifying zones with an uneven distribution of the mentioned parameters. Determination of characteristic zones with a zero increase in the strain effective value makes it possible to determine, with a high approximation, the maximum (due to the phenomenon of cracking) diameter of the flange. The results of numerical calculations showed a high agreement with the results of experimental tests, in which the maximum diameter of the flange was determined.

Słowa kluczowe

EN

extrusion; cold forming; cracking; flanging; hollowed parts

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2023
• Tom: Vol. 17, no 3
• Strony: 64--72
• Opis fizyczny: Bibliogr. 28 poz., fig., tab.

Twórcy

autor

Winiarski Grzegorz

• Lublin University of Technology, 38D Nadbystrzycka Str., 20-618 Lublin, Poland

• https://orcid.org/0000-0001-5286-6285

autor

Samołyk Grzegorz

• Lublin University of Technology, 38D Nadbystrzycka Str., 20-618 Lublin, Poland

• https://orcid.org/0000-0003-0604-5587

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).