A FEM Model Considering Grain Distribution and Grain Boundary Strength for Micro Upsetting Process

Wei Zheng; Guang Chun Wang; Liang Chen; Bing Tao Tang

doi:10.4028/www.scientific.net/AMM.703.137

Paper Titles

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The Effect of Pulse Current on Microstructure and Mechanical Property of the Pure Aluminum
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The Experimental Condition Filtration of Hemimelitene Content in Heavy Aromatics with HPLC
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Selection and Analysis of Parameters for Composite Carbide End Mills
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A FEM Model Considering Grain Distribution and Grain Boundary Strength for Micro Upsetting Process
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Effects of Process Parameters on Charge Weld Length during Multi-Hole Porthole Die Extrusion
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Fabrication of Micro-Dimple Arrays Using Modified Through-Mask Electrochemical Micromachining
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Feed Optimization for Five-Axis Flank Milling Thin-Walled Parts
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Optimization of Cutting Parameters of Slender Bar Based on Improved Artificial Bee Colony Algorithm
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 703A FEM Model Considering Grain Distribution and...

A FEM Model Considering Grain Distribution and Grain Boundary Strength for Micro Upsetting Process

Abstract:

In the paper, a region model considering grain shape, orientation and boundary is built based on Hall-Petch Equation. The constitute relationships of materials in grain region and grain-boundary region are deduced by introducing the scale parameter. The proposed model and constitutive relationships are verified by the experimental data. Using the region model, the micro-upsetting processes are simulated. The researches in the paper can be used to guide the other micro-forming processes which are more complex.