Optimization of Initial Blank Shape with a Variable Blank Holder Force in Deep-Drawing via Sequential Approximate Optimization

Analysis of Optimization of Blank Holding Force In Deep Drawing By Using LS DYNA

Sheet metal forming problems are typical in nature since they involve geometry, boundary and material non-linearity. Cup drawings involves many parameters like punch and die radius, clearance, lubrication, blank holding force and its trajectories etc. So designing the tools for cup drawing involves a lot of trial and error procedure. To reduce number of costly trial error steps, the process can...

Sequential Approximate Optimization Using Variable Fidelityresponse Surface

Optimization of Water Channel Design in Beam-blank Molds

The magnitude and uniformity of the hotface temperature greatly affects the life of continuous casting molds, in addition to affecting surface defects in the product, such as longitudinal cracks. In this work, several different designs for the cooling channels of a beam-blank mold are evaluated using two-dimensional finite-element heat conduction models in order to minimize hotface temperature ...

Initial blank design of deep drawn orthotropic materials using inverse finite element method

In this work, an inverse finite element formulation was modified for considering material anisotropy in obtaining blank shape and forming severity of deep drawn orthotropic parts. In this procedure, geometry of final part and thickness of initial blank sheet were known. After applying ideal forming formulations between material points of initial blank and final shape, an equation system was obt...

finite element simulation of process and springback of friction aided deep drawing using tapered blank holder divided into eight segments

in this paper, a novel technique on friction aided deep drawing using tapered blank holder divided into eight segments is proposed to overcome defect of friction aided deep drawing using four segments tapered blank holder technique. a taper blank holder is designed to be of two parts: stationary part with 5 degree taper angle and moving parts divided into eight tapered segments. the main functi...