The Application of the Numerical Simulation Technology in Double-Wall Air Compressor Forming Parts

2014 ◽  
Vol 543-547 ◽  
pp. 391-394
Author(s):  
Xin Zeng ◽  
Bi You Peng ◽  
Lin Zhi Liao ◽  
Yan Hui Men ◽  
Yang Hu
Keyword(s):  
Numerical Simulation ◽  
Design Optimization ◽  
Strain Distribution ◽  
Mold Design ◽  
Simulation Technology ◽  
Forming Process ◽  
Stress Strain ◽  
Air Compressor ◽  
Double Wall

Numerical simulation technology not only could effectively predict the defects on the forming product, such as wrinkle , rupturing, but also could display the stress, strain distribution and forming pressure. The numerical simulation was completed by DYNAFORM solfware, and the result of numerical was using to conduct the double-wall air compressor forming parts forming process inspection and forming mold design optimization.

scholarly journals The Effect of Swinging Ball Heads with Different Arrangements in Multi-Point Stretch-Forming Process

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 337 ◽  
Author(s):  
Jian Xing ◽  
Yan-yan Cheng ◽  
Zhuo Yi
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Sheet Metal ◽  
Strain Distribution ◽  
Finite Element Models ◽  
Stretch Forming ◽  
Forming Process ◽  
Forming Quality ◽  
Staggered Arrangement ◽  
Simulation Results

To improve the effect of multi-point stretch forming of sheet metal, it is proposed in this paper to replace a fixed ball head with a swinging ball head. According to the multi-point dies with different arrangements, this research establishes finite element models of the following stretch forming, i.e., fixed ball heads with conventional arrangement, swinging ball heads with conventional arrangement, swinging ball heads with declining staggered arrangement, and swinging ball heads with parallel staggered arrangement, and then numerical simulation is performed. The simulation results show that by replacing a fixed ball head with a swinging ball head, the surface indentation of the part formed was effectively suppressed, the stress and tension strain distribution of the part formed was improved, and the forming quality was improved; the thickness of the elastic pad was reduced, the springback was reduced and the forming accuracy was improved; and when the ball head was applied to a multi-point die with staggered arrangement, a better forming result was achieved, where the best forming result was achieved in combining the swinging ball heads with the multi-point die with a parallel staggered arrangement. Forming experiments were carried out, and the experimental results were consistent with the trend of numerical simulation results, which verified the correctness of the numerical simulation.

Study on the Forming Process of the Crossmember in Car Intermediate Floor

2013 ◽  
Vol 442 ◽  
pp. 593-598
Author(s):  
Xue Xia Wang ◽  
Peng Chong Guan ◽  
Hai Peng Li ◽  
Li Hui Wang ◽  
Na Zhang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Numerical Model ◽  
Process Parameters ◽  
Thickness Distribution ◽  
Forming Limit Diagram ◽  
Forming Limit ◽  
Simulation Technology ◽  
Forming Process ◽  
Distribution Diagram ◽  
Simulation Results

Flanging and bending forming processes of the crossmember in car intermediate floor are investigated respectively by using numerical simulation technology. The numerical model of the crossmember was established and its press forming effect was simulated to determine the feasible process parameters affecting its manufacturability. Forming limit diagram and thickness distribution diagram are used to evaluate simulation results of different process schemes. And then optimum values of process parameters for flanging and bending are found, which can reduce the tendencies of wrinkling, springback and crackling during the stamping of the product.

Investigation on Forming Process of Automobile Trunk Side Panel Based on Numerical Simulation Technology

2013 ◽  
Vol 634-638 ◽  
pp. 2855-2860
Author(s):  
Hai Peng Li ◽  
Jia Wei Fan ◽  
Li Hui Wang ◽  
Xue Xia Wang ◽  
Ju Yuan Zhao
Keyword(s):  
Numerical Simulation ◽  
Process Parameters ◽  
Thickness Distribution ◽  
Forming Limit Diagram ◽  
Forming Limit ◽  
Simulation Technology ◽  
Forming Process ◽  
Distribution Diagram ◽  
Side Panel ◽  
Design Cycle

The forming process of automobile trunk side panel was investigated, using numerical simulation technology, to acquire the feasible process parameters and improve the formability of the product. With the technology, the manufacturability working procedures and drawing process parameters of the product were analyzed, calculated and simulated to achieve optimum formability characteristics. The method effectively lowers the probability of springback, wrinkling and thickness reduction, and shortens design cycle and cost. Based on the simulation results including forming limit diagram and thickness distribution diagram, the feasible process parameters are determined.

Application of Numerical Simulation in Stamping Process of Complex Box-Type Parts

2011 ◽  
Vol 291-294 ◽  
pp. 579-584 ◽  
Author(s):  
Guang Kai Wang ◽  
Si Yuan Cheng ◽  
Su Yang Li ◽  
Xiang Wei Zhang
Keyword(s):  
Numerical Simulation ◽  
Metal Flow ◽  
Design Parameters ◽  
Simulation Technology ◽  
Forming Process ◽  
Stamping Process ◽  
Accurate Forecast ◽  
Blank Holding Force ◽  
Process Prediction

Due to the recent development both in the numerical simulation technology and computer technology, the role of numerical simulation in sheet forming industry has been continuously increasing in recent years. This paper describes the application of numerical simulation technology in the forming process of a complex box-type part with Dynaform and gives a fairly accurate forecast of defects that may appear in the forming process. Prediction of the effect of design parameters such as blank holding force and drawbeads on forming quality is investigated. The study indicates that blank holding force and drawbead directly affect the metal flow and formability of stamping. Then, by adjusting blank holding force and setting appropriate drawbeads, an optimized stamping process plan is obtained and is validated in experiments. Finally the phenomenon and displacement of distortion springback are predicted in the springback simulation, which is useful to further improve the quality of this kind of part.

Influence Study on Drawbead Setting to Formability of Automobile Sump Based on Numerical Simulation

2010 ◽  
Vol 146-147 ◽  
pp. 883-886
Author(s):  
Hong Wei Wang ◽  
Er Wei Su ◽  
Feng Wang
Keyword(s):  
Numerical Simulation ◽  
Significant Influence ◽  
Line Segment ◽  
Thickness Variation ◽  
Mold Design ◽  
Forming Process ◽  
Forming Quality ◽  
Setting Theory ◽  
Separate Line ◽  
Shallow Part

Drawbead is an important factor to automobile sump forming process, proper drawbead setting can improve the forming quality significantly, such as uniforming the sump thickness. Using the drawbead setting theory in dynaform software, the drawbead on the compressive annular part which lie in the shallow part of sump was set, that is, three separate line segment shape equivalent drawbead were arranged alone the shallow part of the die. The influence law of different drawbead parameters to the sump thickness variation has been simulated. Simulating results show that after setting drawbead, reduction of sump thickness is reduced 15% relative to not setting one, and drawbead setting has significant influence to the sump forming quality. It is helpful for forming mold design.

Research on Warm-Cold Precision Forging Process and Numerical Simulation for Spherical Housing

2011 ◽  
Vol 189-193 ◽  
pp. 2780-2783
Author(s):  
Qian Li ◽  
Zhi Jiang ◽  
Xiao Hui Ma ◽  
Hong Yan Yan ◽  
Zhi Ping Zhong ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Material Flow ◽  
Extrusion Process ◽  
Mold Design ◽  
Forming Process ◽  
Load Curve ◽  
Flow Temperature ◽  
Cold Forming ◽  
Precision Forging ◽  
Cold Precision Forging

The warm-cold forming process is researched for complex-DOJ-type spherical housing by means of numerical simulation. Each step of the process is simulated, especially for the reverse extrusion process. Focusing on analysis of the material flow, temperature distribution as well as the load curve, a reasonable process for DOJ-type spherical housing is obtained. The reasonable forming process for DOJ-typed spherical housing offers favorable basis for forming and mold design.

The Study on Numerical Simulation of Tailor Welded Blanks on Square Cup Stamping

2011 ◽  
Vol 189-193 ◽  
pp. 3932-3935
Author(s):  
Xiao Gang Qiu
Keyword(s):  
Numerical Simulation ◽  
Plastic Deformation ◽  
Strain Distribution ◽  
Weld Seam ◽  
Element Model ◽  
Forming Process ◽  
Tailor Welded Blanks ◽  
Tailor Welded Blank ◽  
Different Thickness ◽  
The Finite Element Model

The stamping process of the tailor welded blank(TWB) was simulated by the software of DYNAFORM. The finite element model of a boxy part was founded, and the forming of different thickness and properties of the material was studied. Meanwhile, the influence of weld seam on forming result was analyzed. The results show that the weld seam model which founded by real properties can describe the plastic deformation and strain distribution more exactly in the forming process.

scholarly journals MANUFACTURING OF SANDWICH PANELS AND ITS VERIFICATION BY NUMERICAL SIMULATION

2021 ◽  
Vol 2021 (4) ◽  
pp. 4797-4802
Author(s):  
MARTIN HARANT ◽  
◽  
JAN RIHACEK ◽  
LIBOR MRNA ◽  
◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Design Optimization ◽  
Sandwich Panel ◽  
Thickness Distribution ◽  
Sandwich Panels ◽  
Solar Panels ◽  
Forming Process ◽  
Failure Pressure ◽  
Critical Areas ◽  
Crack Zone

This paper deals with the manufacturing of a parallel hydroformed sandwich panel, which is used as a reinforcement for solar panels. The forming process can cause excessive thinning and cracking. Therefore, PAM-STAMP software is used for the analysis of defects. The outputs of the numerical simulation provide information, such as failure pressure, critical areas or limiting deformations. The comparison of the numerical simulation with the experimentally obtained data is created for the validation of these outputs. The comparative criteria are the failure pressure, the crack zone, and the thickness distribution. Subsequently, the results can be used for a design optimization of the sandwich panel.

scholarly journals The Effect of Swinging Ball Heads with Different Arrangements in Multi-Point Stretch Forming Process

2019 ◽  
Author(s):  
Jian Xing ◽  
Yan-yan Cheng ◽  
Zhuo Yi
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Strain Distribution ◽  
Finite Element Models ◽  
Stretch Forming ◽  
Forming Process ◽  
Forming Quality ◽  
Staggered Arrangement ◽  
Simulation Results ◽  
Formed Part

To improve the effect of multi-point stretch forming of sheet metal, it is proposed in this paper to replace fixed ball head with swinging ball head. According to the multi-point dies with different arrangements, this research establishes the finite element models of the following stretch forming, i.e. fixed ball heads with conventional arrangement, swinging ball heads with conventional arrangement, swinging ball heads with declining staggered arrangement, and swinging ball heads with parallel staggered arrangement and then numerical simulation is performed. The simulation results show that by replacing fixed ball head with swinging ball head, the surface indentation of the formed part was effectively suppressed, the stress and tension strain distribution of the formed part was improved and the forming quality was improved; that the thickness of the elastic pad was reduced, the springback was reduced and the forming accuracy was improved; and that when the ball head was applied to multi-point die with staggered arrangement, better forming result was achieved, where the best forming result was achieved in combining the swinging ball heads with the multi-point die with parallel staggered arrangement. The forming experiments were carried out, and the experimental results were consistent with the trend of numerical simulation results, which verified the correctness of the numerical simulation.

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