scholarly journals Finite element analysis and formability of non-isothermal deep drawing of AZ31B sheets

2006 ◽  
Vol 177 (1-3) ◽  
pp. 142-145 ◽  
Author(s):  
Tyng-Bin Huang ◽  
Yung-An Tsai ◽  
Fuh-Kuo Chen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Deep Drawing ◽  
Element Analysis

Effect of temperature and punch speed on forming limit strains of AA5182 alloy in warm forming and improvement in failure prediction in finite element analysis

2017 ◽  
Vol 52 (4) ◽  
pp. 258-273 ◽  
Author(s):  
D Raja Satish ◽  
D Ravi Kumar ◽  
Marion Merklein
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Strain Rate ◽  
Deep Drawing ◽  
Failure Prediction ◽  
Forming Limit ◽  
Element Analysis ◽  
Working Temperature ◽  
Warm Working ◽  
Punch Speed

Formability of AA5182-O aluminum alloy sheets in the warm working temperature range has been studied. Forming limit strains of sheets of two different thicknesses have been determined experimentally in different modes of deformation (biaxial tension, plane strain and tension–compression) by varying temperature and punch speed. A correlation has been established for plane strain intercept of the forming limit diagram (FLD0) with temperature, punch speed and thickness from the experimental results. This correlation has been used to plot the forming limit diagrams for failure prediction in the finite element analysis of warm deep drawing of cylindrical cups. The effect of strain and strain rate on material flow behavior has been incorporated using a strain rate–sensitive power hardening law in which the strain hardening exponent and strain rate sensitivity index have been experimentally determined. The predictions from simulations have been validated by warm deep drawing experiments. Large improvement in accuracy of failure prediction has been observed using the FLDs plotted based on the developed correlation when compared to the existing method of calculating FLD0 using only strain hardening coefficient and thickness. The results clearly indicate the importance of incorporating temperature and punch speed in failure prediction of Al alloys using FLDs in the warm working temperature range.

scholarly journals Finite element analysis of deep drawing

2019 ◽  
Vol 11 (9) ◽  
pp. 168781401987456 ◽  
Author(s):  
Dyi-Cheng Chen ◽  
Li Cheng-Yu ◽  
Yu-Yu Lai
Keyword(s):  
Finite Element Analysis ◽  
Plastic Deformation ◽  
Finite Element ◽  
Aluminum Alloy ◽  
Deep Drawing ◽  
Drawing Ratio ◽  
Element Analysis ◽  
Forming Mechanism ◽  
Analysis Process ◽  
Plastic Flow Stress

With the advancement of technology, aiming for achieving a greater lightness and smaller size of 3C products, parts processing technology not only needs to explore the basic scientific theory of materials but also needs to discuss the process of deep drawing numerical and the plastic deformation. This study is based on the square shape of the deep drawing numerical simulation, and aluminum alloy plastic flow stress was input into the finite element method for simulation of plastic deformation in the aluminum alloy friction, mold clamping force, and frequency, as well as amplitude in the influence of forming mechanism and the drawing ratio of aluminum alloy. Finite element analysis software has the function of grid automatic rebuild, which can rebuild the broken grid in the analysis into a complete grid shape, which can avoid the divergence caused by numerical calculation in the analysis process. The greater the obtained error value, the best plastic parameters can be found.

Finite Element Analysis and Deep Drawing of Cylindrical Cups with 5A90 Al-Li Alloy Sheets

2011 ◽  
Vol 66-68 ◽  
pp. 76-81
Author(s):  
Gao Shan Ma ◽  
Han Ying Wang ◽  
Song Yang Zhang ◽  
Min Wan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Deep Drawing ◽  
Uniaxial Tensile ◽  
Element Analysis ◽  
Corner Radius ◽  
The Finite Element Analysis ◽  
Forming Temperature ◽  
Cylindrical Cup ◽  
Cup Drawing

The cylindrical cup drawing of 5A90 Aluminum-Lithium alloy sheets at various forming conditions was studied by both the experimental approach and the finite element analysis. The uniaxial tensile tests and forming limit tests of 5A90 Al-Li alloy sheets at various temperatures were first carried out. The tests results were then employed in the finite element simulations to investigate the effects of process parameters, such as forming temperature, holder force, and die corner radius, on the formability of cylindrical cup drawing with 5A90 sheets. In order to validate the finite element analysis, the corresponding deep drawing tests were also carried out. It is shown that the simulation results are in qualitative agreement with the experimental observations. The optimal forming temperature, diameter of blank, holder force, punch radius and die corner radius were then determined for the cylindrical cup drawing of 5A90 sheets, and the limit drawing ratio (LDR) reached 2.4 in the optimal parameter conditions.

scholarly journals Technological and Theoretical Application of Finite Element Modeling of Deep Drawing

2018 ◽  
Vol 9 (1) ◽  
pp. 51-54
Author(s):  
Ádám Bertók ◽  
Viktor Gonda ◽  
Károly Széll
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Finite Element Model ◽  
Deep Drawing ◽  
Metal Forming ◽  
Element Model ◽  
Stress And Strain ◽  
Element Analysis ◽  
Forming Technology ◽  
Theoretical Application

Abstract For metal forming problems, even for a simple forming technology, finite element analysis can provide a solution for calculating deformations, determining stress and strain distributions. The aim of this study is to create a parametric finite element model for deep drawing technology, by which technological optimization as well as theoretical problems can be solved. By performing parameter studies, numerous cases can be analyzed.

Finite Element Analysis and Experimental Validation of Warm Hydromechanical Deep Drawing Process

2014 ◽  
Vol 686 ◽  
pp. 535-539
Author(s):  
Dogan Acar ◽  
Mevlut Turkoz ◽  
Hasan Gedikli ◽  
Omer Necati Cora
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Deep Drawing ◽  
Drawing Process ◽  
Element Analysis ◽  
Deep Drawing Process ◽  
Hydromechanical Deep Drawing ◽  
Fea Model ◽  
Real Process ◽  
Lightweight Alloys

This study intended to establish finite element analysis (FEA) model of warm hydro mechanical deep drawing process (WHMD) of cylindrical cups by means of commercial FEA package Ls-Dyna The validity of established FEA model is verified by means of WHMD experiments through several studies. It was noted that the established model successfully simulated the real process leading to significant cost and time spent on trial-error stage in hydromechanical deep-drawing of lightweight alloys.

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