On the FEM simulation of joining by forming operations

• Autorzy: Fratini L. , Micari F.

Warianty tytułu

PL

Symulacja metodą elementów skończonych procesów FSW i LFW

• Języki publikacji: EN

Abstrakty

EN

Solid state welding processes are increasing their application in industrial environments due to their strong advantages with respect to traditional fusion techniques. Advanced FEM tools are requested in order to carry out a detailed engineering of the processes and to get quantitative results useful for the set up of the processes. Also basic investigations regarding process mechanics and material flow are important in order to fully understand the fundamental aspects of the processes and the bonding conditions at the interface of the specimens to be welded. In the paper Friction Stir Welding (FSW) and Linear Friction Welding (LFW) operations are considered and numerical results derived from FE models of the two processes are shown. The proposed results give the idea of the potentialities of the numerical tool for the two considered processes and in particular furnish interesting information on the actual bonding conditions at the welding zone.

PL

W artykule przedstawiono możliwości metody elementów skończonych (MES) w zakresie modelowania procesów spajania przez odkształcenie. Szczególny nacisk położono na procesy zgrzewania tarciem z mieszaniem zgrzewanych materiałów (ang. Friction Stir Welding FSW) i liniowego spajania tarciem (ang. Linear Friction Welding LFW). Liczba zastosowań procesów spajania w stanie stałym szybko rośnie, ze względu na liczne zalety tych procesów w przemyśle w stosunku do tradycyjnych metod spajania. Zaawansowane modele MES są potrzebne dla przeprowadzenia dokładnej analizy tych procesów i uzyskania ilościowych wyników, które są użyteczne dla zaprojektowania technologii spajania. Badania mechanicznych aspektów procesów spajania oraz płynięcia materiału w tym procesie są również istotne dla pełnego zrozumienia podstaw tych procesów i warunków łączenia się materiałów. W artykule omówiono procesy FSW i LFW i przedstawiono wyniki symulacji MES dla tych procesów. Zaprezentowane wyniki pokazują możliwości numerycznego modelowania w zakresie wspierania projektowania procesów spajania, ze szczególnym uwzględnieniem warunków łączenia się materiałów w strefie spajania.

Słowa kluczowe

EN

FSW; LFW; material flow

• Wydawca: Wydawnictwa AGH
• Czasopismo: Computer Methods in Materials Science
• Rocznik: 2010
• Tom: Vol. 10, No. 4
• Strony: 249--258
• Opis fizyczny: Bibliogr. 33 poz., rys.

Twórcy

autor

Fratini L.

autor

Micari F.

• Dipartimento di Tecnologia Meccanica, Vialew delle Scienze 90128 Palermo, Italy,

Bibliografia

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