Simulation of the Tribological System in Sheet Metal Processes on the Micro Scale

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  • R. Gru¨ebler
    Swiss Federal Institute of Technology, Zurich, Switzerland
  • P. Hora
    Swiss Federal Institute of Technology, Zurich, Switzerland

Description

<jats:p>The topography of the sheet metal and tool surface influences the contact behavior between the tool and the sheet metal. With a simulation on the micrometer scale the topographical deformation of the sheet metal is elasto-plastically modeled using an explicit finite element method. The model of the lubricant in between is based on a simplified method calculating the pressure and velocity of the liquid with Darcy’s law. A flat rigid tool is pressed on the sheet metal surface simultaneously with a constant lateral motion. Simulations were performed with real and modeled surfaces. The topographies show different tribological behavior depending on their texture.</jats:p>

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