Dynamical Modelling and Analysis of Non-Linear Cold Processes of Metal Forming

• Autorzy: Kukiełka L.
• Konferencja: French-Polish Seminar of Mechanics (18 ; 31.05.2010 ; Warsaw, Poland)
• Języki publikacji: EN

Abstrakty

EN

Grinding, embossing, burnishing, thread rolling, drawing, cutting, turning are very complicated technological processes. To increase the quality of the product and minimize the cost of process, we should know the physical phenomena which exist during the process. The phenomena on a typical incremental step were described using a step-by-step incremental procedure, with an updated Lagrange's formulation. The technological processes are considered as geometrical and physical non-linear initial and boundary problems. The finite element method (FEM) and the dynamic explicit method (DEM) were used to obtain the solution. The application was developed in the ANSYS/LS-DYNA system, which makes possible a complex time analysis of the physical phenomena: states of displacements, strains and stresses. Numerical computations of the strain and stress have been conducted with the use of methodology which requires a proper definition of the contact zone, without the necessity to introduce boundary conditions. Examples of calculations are presented.

Słowa kluczowe

EN

LS-DYNA; FEM; DEM; numerical calculation; strain; stress; dynamical modelling; cold processes; metal forming

• Wydawca: Oficyna Wydawnicza Politechniki Warszawskiej
• Czasopismo: Machine Dynamics Research
• Rocznik: 2010
• Tom: Vol. 34, No. 1
• Strony: 44--53
• Opis fizyczny: Bibliogr. 3 poz., wykr.

Twórcy

autor

Kukiełka L.

• Koszalin University of Technology. Faculty of Mechanical Engineering, Department of Technological Mechanics and Mechanics of Materials,

Bibliografia

• Kukiełka, K., Kukiełka, L., 2006, Modelling and numerical analysis of the thread rolling process, WILEY-VCH Verlag GmbH & Co. KGaA, 6, 1, 745-746.
• Kukiełka, L., Kustra, J., 2003, Numerical analysis of thermal phenomena and deformations in processing zone in the centreless continuous grinding process, Computation Methods and Experimental Measurements for Surface Treatment Effects, WUPRESS, Southampton, Boston, 109-118.
• Kukiełka, L., Chodor, J., 2008, Numerical analysis of chip formation during machining for different value of failure strain, Journal PAMM, 7, 1, 4030031-4030032.