Numerical simulation of temperature distribution during the first stage of the friction stir alloying process

• Autorzy: Nosal P. , Ganczarski A.

Identyfikatory

DOI

10.4467/2353737XCT.18.109.8804

Warianty tytułu

PL

Symulacja numeryczna dystrybucji temperatury podczas pierwszej fazy procesu stopowania tarciowego z mieszaniem materiału

• Języki publikacji: EN

Abstrakty

EN

This work demonstrates the numerical modelling of thermal dispersion accompanying the first stage of the friction stir alloying process. It is very important to recognise the temperature field in the modified workpiece in order to identify the zones where the physical material properties are changing. The temperature gradient leads to a drop of yield strength of the material and, as a consequence, the occurrence of the possibility of plastic flow around the tool. An attempt has been made to analyse the axisymmetric thermal problem described by a Fourier equation with an internal heat source in which the heat is derived only from work of frictional forces occurring between the workpiece and the tool material. The example under consideration focuses on the production of an Al-TiC composite using FSA technology. Macrostructure images of the composite and the simulation results confirm the correctness of the applied mathematical model, where the obtained temperature field corresponds with specific FSA zones.

PL

Praca dotyczy numerycznego modelowania rozkładu temperatury towarzyszącej pierwszej fazie procesu stopowania tarciowego z mieszaniem materiału. Bardzo ważne jest określenie pola temperatury w modyfikowanym materiale w celu identyfikacji obszarów, gdzie właściwości fizyczne materiału ulegają zmianie. Występujący gradient temperatury powoduje obniżenie granicy plastyczności, czego konsekwencją jest umożliwienie plastycznego płynięcia materiału wokół narzędzia mieszającego. Podjęto próbę analizy obrotowo symetrycznego problemu opisanego równaniem typu Fouriera z wewnętrznym źródłem ciepła, gdzie generowane ciepło pochodzi jedynie od pracy sił tarcia występujących pomiędzy materiałem bazowym a materiałem narzędzia. Rozważany problem skupiał się na analizie procesu wytwarzania kompozytu Al-TiC za pomocą technologii FSA . Zdjęcia makrostruktury kompozytu oraz wyniki symulacji numerycznej potwierdzają poprawność zastosowanego modelu matematycznego, a otrzymane pole temperatury nawiązuje do stref właściwych dla procesu FSA.

Słowa kluczowe

EN

FSA; temperature field; Al-TiC composite

PL

FSA; rozkład temperatury; kompozyt Al-TiC

• Wydawca: Wydawnictwo Politechniki Krakowskiej im. Tadeusza Kościuszki
• Czasopismo: Technical Transactions
• Rocznik: 2018
• Tom: Vol. 115, iss. 7
• Strony: 179--190
• Opis fizyczny: Bibliogr. 29 poz., wz., tab., wykr., il.

Twórcy

autor

Nosal P.

• Institute of Applied Mechanics, Faculty of Mechanical Engineering, Cracow University of Technology

autor

Ganczarski A.

• Institute of Applied Mechanics, Faculty of Mechanical Engineering, Cracow University of Technology

Bibliografia

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Uwagi

EN

Section "Mechanics"

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).