Abstract
This chapter presents the simulation of Micro deep drawing (MDD). MDD is a promising technology for mass production of complex 3D micro metal products. A Voronoi blank model is developed for the microscale simulation. Dividing samples into small areas according to observed microstructures including grains and grain boundaries and assigning individual properties to each small area are a possible access to microforming simulation considering material size effects. Real microstructures and Voronoi structures have been applied in microstructural models through image-based modeling method. The statistic material properties and general phenomena in MDD are also repealed by the proposed model. Simulation results demonstrate that the surface roughness with consideration of size effects has significant influences on the overall springback, drawability and products’ quality in terms of thickness evenness, shape accuracy, and the earing of drawn cups. The developed model for the MDD is accurate and beneficial for the development of MDD process.
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