The Forming Scheme of a Silencer Cover in Progressive Die

2010 ◽  
Vol 97-101 ◽  
pp. 311-314
Author(s):  
Ming Jun Liu ◽  
Bai Liu ◽  
Fei Tang
Keyword(s):  
Numerical Simulation ◽  
Process Parameters ◽  
Drawing Process ◽  
Progressive Die ◽  
Binding Force ◽  
Simulation And Experiment ◽  
Dynamic Software ◽  
Explicit Dynamic ◽  
Blank Size

The drawing scheme of a silencer cover in the progressive die was studied. This cover was formerly processed by several single punching dies and now was produced by a progressive die. The drawing scheme was hard to determine. Therefore, the explicit dynamic software DYNAFORM was applied to make simulations about the drawing process. According to comparisons between the simulation and experiment results, the optimized drawing scheme, blank layout, blank size, binding force and some other process parameters were determined. The defects were eliminated after the proper drawbead was set. Experiments showed that numerical simulation provided an efficient way for the optimization of the forming scheme in the progressive die production.

Process Optimization for the Side-Plate of the Core Part in Parallel Flow Evaporator

2011 ◽  
Vol 55-57 ◽  
pp. 961-965 ◽  
Author(s):  
Ming Jun Liu ◽  
Zhen Yu Zhao ◽  
Bai Liu
Keyword(s):  
Numerical Simulation ◽  
Process Optimization ◽  
Process Parameters ◽  
Parallel Flow ◽  
Side Plate ◽  
The Core ◽  
Plate Production ◽  
Dynamic Software ◽  
Explicit Dynamic ◽  
Core Part

The forming scheme of a side-plate of the core part in parallel flow evaporator was studied. Two forming schemes were compared and the explicit dynamic software DYNAFORM was applied to make simulations about the forming processes. According to comparisons between two forming schemes, the optimized scheme and process parameters were determined. Multi-station dies were designed based on the optimized process. Successful experiments with the dies showed that numerical simulation provided an efficient way for the optimization of the forming scheme in the side-plate production.

Numerical simulation of the crush behavior of tapered tubes

2020 ◽  
Vol 62 (12) ◽  
pp. 1187-1191
Author(s):  
Osman H. Mete ◽  
Halil Kayar
Keyword(s):  
Numerical Simulation ◽  
Traffic Accidents ◽  
Passive Safety ◽  
Security Systems ◽  
Flat Tube ◽  
Passive Safety Systems ◽  
Axial Crush ◽  
Dynamic Software ◽  
Safety Systems ◽  
Explicit Dynamic

Abstract Traffic accidents are increasing as a result of an increasing number of vehicles and population growth in recent years. Active and passive safety systems are used in the vehicles we use today to reduce traffic accidents and prevent casualties. One of the passive security systems is the crush box (crashworthiness). It absorbs the energy generated during a crash by plastic deformation. In this study, tube height, diameter and thickness parameters were kept constant and degrees of conicity were varied 0°(flat tube),3°,7°,10°,12° and 15° The effects of conical crush boxes on axial crush behavior and their energy absorption ability, were investigated by Ls-Dyna explicit dynamic software.

Numerical Simulation and Parameter Optimization on Forming Process of Automobile Torque Box

2014 ◽  
Vol 722 ◽  
pp. 140-146
Author(s):  
Wen Juan Zhang ◽  
Long Wu ◽  
Gang Chen
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Parameter Optimization ◽  
Process Parameters ◽  
Fem Simulation ◽  
Simulation Software ◽  
Drawing Process ◽  
Forming Process ◽  
Element Simulation

In this paper the drawing process of Box-torque was simulated by Dynaform, which is FEM simulation software. The process parameters, which affected the quality of forming, were optimized by finite element simulation. The emphasis was focus on the optimization of draw-bead and BHF and data were summarized from the optimization graphs. In this simulation, lengthways draw-bead was set on the technical face for reducing or eliminating wrinkle. It was innovation difference from the usual that the draw-bead was set on binder. Finally the correctness of simulation was approved by comparing the optimization of simulation with the data of experimentation.

scholarly journals Comparison of Numerical Simulation and Experiment for the Microstructure Development of a Cold-Rolled Multiphase Steel during Annealing

2016 ◽  
Vol 854 ◽  
pp. 167-173 ◽  
Author(s):  
Norbert Kwiaton ◽  
Roman Kuziak ◽  
Maciej Pietrzyk
Keyword(s):  
Mechanical Properties ◽  
Numerical Simulation ◽  
Process Parameters ◽  
Temperature Cycle ◽  
Microstructure Development ◽  
Tempered Martensite ◽  
Temperature Cycles ◽  
Simulation And Experiment ◽  
Cold Rolled ◽  
Multiphase Steel

JAMK model, developed as part of RFSR-project “VADPsheets”, was applied to analyse different time temperature cycles from industrial time temperature cycle. The results of numerical simulation are compared with experimentally determined mechanical properties and microstructures. By distinguishing of recrystallized ferrite, ferrite after transformation, tempered martensite, bainite and martensite can be explained the experimentally obtained mechanical properties. The results of simulation can be used to optimizing the properties and to generate a better understanding of process parameters.

The Experiment Analysis and Numerical Simulation on Fracture of Complex-Shaped Part Drawing

2004 ◽  
Vol 471-472 ◽  
pp. 834-838
Author(s):  
Zhen Zhong Sun ◽  
Yu Ying Yang ◽  
Yu Quan Chen ◽  
J.Y. Li ◽  
L.R. Guo ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Safety Margin ◽  
Grid Method ◽  
Deformation Path ◽  
Deformation Degree ◽  
Shaped Part ◽  
Simulation And Experiment ◽  
The Stability ◽  
Blank Size ◽  
Character Deformation

The fracture is primary drawback to stability of production in the drawing of complex-shaped parts. In the paper, the fracture of complex-shaped part drawing is investigated experimentally and numerically. A grid method is adopted to analyze the deformation character, deformation path, deformation degree and safety margin in risk region where is determined by numerical simulation and experiment. The magnitude of safety margin and the stability of production are greatly increased by optimizing the height of draw-bead and the blank size.

Deep Drawing of Square-Shaped Sheet Metal Parts, Part 2: Experimental Study

1993 ◽  
Vol 115 (1) ◽  
pp. 110-117 ◽  
Author(s):  
S. A. Majlessi ◽  
D. Lee
Keyword(s):  
Process Parameters ◽  
Deep Drawing ◽  
Process Conditions ◽  
Drawing Process ◽  
Blank Holder Force ◽  
Blank Holder ◽  
Metal Parts ◽  
Sheet Metal Parts ◽  
Punch Load ◽  
Blank Size

The deep drawing process of square and rectangular shells were investigated under different process conditions, and using two different drawing quality steels. The main objective was to identify the significance of some of the process parameters on the outcome of the drawing operation. The process parameters examined were shape and size of blank, the blank-holder force and frictional condition between blank and tooling. The results of this investigation were presented in terms of punch load, through thickness and in-plane strain distributions, formations of flange wrinkles and fracture, and the largest possible blank size that can be drawn successfully. Some of these experimental results were used to verify the validity of a simplified analytical model which was described in the first part of this paper.

Press Forging of Magnesium Alloy AZ31 Sheets

2007 ◽  
Vol 539-543 ◽  
pp. 1753-1758 ◽  
Author(s):  
Shi Hong Zhang ◽  
Zhang Gang Li ◽  
Yong Chao Xu ◽  
Li Mei Ren ◽  
Zhong Tang Wang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Magnesium Alloy ◽  
Process Parameters ◽  
Material Flow ◽  
Friction Condition ◽  
Experimental Results ◽  
Alloy Az31 ◽  
Magnesium Alloy Az31 ◽  
Typical Component ◽  
Blank Size

Press forging of magnesium alloy AZ31 sheets was investigated in this paper. The typical component, a rectangular box with bosses at the bottom was formed. The experimental results show that the magnesium alloy sheets are suitable for press forging. The bosses and the rectangular box can be formed synchronously for 2 mm or 3 mm thick sheets when the punch temperature is 250 °C. By experimentation and numerical simulation, the effects of process parameters on material flow were analyzed, including the temperature, the die shape, the blank size, the lubrication manners and the friction condition.

An Analysis of Drawing Process in Stamping Die Design for the Wheel Hub

2010 ◽  
Vol 142 ◽  
pp. 107-111
Author(s):  
Bai Liu
Keyword(s):  
Numerical Simulation ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Plastic Flow ◽  
Process Parameters ◽  
Die Design ◽  
Drawing Process ◽  
Element Analysis ◽  
Stamping Die ◽  
Stamping Process

Based on Finite Element Analysis (FEA) module of Dynaform software, the paper made numerical simulation of a wheel hub’s stamping process in the method of elastic-plastic flow, pointed out the behavior of deformation of stamping process, predicted and prevented stamping defect such as crack in the process, and calculated the degree of resilience. Consequently three forming numerical simulation schemes have been designed respectively, more feasible process parameters has been achieved in comparison with the features of each scheme.

Hydroforming Simulation and Experiment on Al 5083 T-Shapes

2010 ◽  
Vol 97-101 ◽  
pp. 2668-2671
Author(s):  
Xun Zhong Guo ◽  
Jie Tao ◽  
Zheng Yuan
Keyword(s):  
Numerical Simulation ◽  
Process Parameters ◽  
Optimization Of Process Parameters ◽  
Hydroforming Process ◽  
Simulation And Experiment ◽  
Simulation Results ◽  
Thinning Rate ◽  
Practical Forming

The hydroforming process to manufacture Al 5083 T-shapes with desired protrusion height and uniform thinning rate was evaluated by means of numerical simulation in this work. The optimization of process parameters and the prediction of forming effect were then carried out. Subsequently, the practical forming was performed based on the simulation results. It was obvious that the simulation results agreed well with the experimental ones. In addition, the streamline on the surface which formed in the hydroforming process was observed in the experiment.

The Numerical Simulation of Punching and the Fatigue Analysis of Punch Based on ANSYS/LS-DYNA and ANSYS-Fatigue Tool

2014 ◽  
Vol 904 ◽  
pp. 469-473 ◽  
Author(s):  
Wei Min Li ◽  
Yang Yang Yan ◽  
Ying Xing
Keyword(s):  
Numerical Simulation ◽  
Fatigue Life ◽  
Fatigue Analysis ◽  
Surface Treatments ◽  
Stress Result ◽  
Dynamic Software ◽  
Explicit Dynamic

In allusion to the characteristic of stamping moulds fatigue analysis, the nodal stress result is obtained by the numerical simulation of punching with the explicit dynamic software called ANSYS/LS-DYNA. Then the fatigue life of punch about the different surface treatments is calculated by ANSYS-Fatigue tool. Through this way an effective method that is suitable for the calculation and reasonable improvement of stamping moulds fatigue life is obtained.

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