Finite Element Simulation of Hydrostatic Extrusion Process to Produce Thin Bimetallic Parts

Experimental and Finite Element Analyses of the Hydrostatic Cyclic Expansion Extrusion (HCEE) Process with Back-Pressure

It is generally known that severe plastic deformation processes with back pressure not only apply higher hydrostatic stress and more deformation compared to what a regular process can apply to a workpiece but also prevent surface defects in the workpiece during the process. Hydrostatic cyclic expansion extrusion (HCEE) was developed recently for processing long ultrafine-grained metals and allo...

Numerical Simulation of Aluminum Extrusion Process Using Solution Adaptive Finite Element Method

Numerical Simulation of Three-Dimensional Extrusion Process Using hp-Adaptive Finite Element Model

Extrusion of aluminum sections is analyzed with a solution hp-adaptive finite element model. The analysis is based on the assumption that the elastic effects are negligible and rigid-viscoplastic material behavior is acceptable. The equations governing the flow of incompressible non-Newtonian fluids are solved using an iterative penalty finite element model. An error estimation scheme based on ...

Finite element simulation of two-point incremental forming of free-form parts

Two-point incremental forming method is considered a modern technique for manufacturing shell parts. The presence of bottom punch during the process makes this technique far more complex than its conventional counterpart i.e. single-point incremental forming method. Thus, the numerical simulation of this method is an essential task, which leads to the reduction of trial/error costs, predicts th...

Numerical study and genetic algorithm optimization of hot extrusion process to produce rectangular waveguides

Rectangular waveguide is one of the earliest types of transmission lines. Rectangular waveguide can be produced by hot extrusion process. In this paper, the hot extrusion process of CuZn5 rectangular waveguide was investigated by Finite Element Method (FEM). In addition, Genetic Algorithm (GA) was used to optimize the die geometry and process conditions to achieve the lowest magnitude of extrus...