Finite element simulation of peen forming process for the saddle shape

2006 ◽  
Author(s):  
Huang Xia ◽  
Zeng Yuansong ◽  
Li Zhiqiang
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Forming Process ◽  
Peen Forming ◽  
Element Simulation ◽  
Saddle Shape

Finite Element Simulation of Vacuum Hot Bulge Forming of Titanium Alloy Cylindrical Workpiece

2011 ◽  
Vol 675-677 ◽  
pp. 921-924 ◽  
Author(s):  
Ming Wei Wang ◽  
Chun Yan Wang ◽  
Li Wen Zhang
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Titanium Alloy ◽  
Finite Element Simulation ◽  
Process Parameters ◽  
Fe Model ◽  
Analysis Software ◽  
Forming Process ◽  
Element Simulation ◽  
Cylindrical Workpiece

Vacuum hot bulge forming (VHBF) is becoming an increasingly important manufacturing process for titanium alloy cylindrical workpiece in the aerospace industries. Finite element simulation is an essential tool for the specification of process parameters. In this paper, a two-dimensional nonlinear thermo-mechanical couple FE model was established. Numerical simulation of vacuum hot bulge forming of titanium alloy cylindrical workpiece was carried out using FE analysis software MSC.Marc. The effects of process parameter on vacuum hot bulge forming of BT20 titanium alloy cylindrical workpiece was analyzed by numerical simulation. The proposed an optimized vacuum hot bulge forming process parameters and die size. And the corresponding experiments were carried out. The simulated results agreed well with the experimental results.

Optimum Design of Forming Sequence of One-Piece Automobile Steel Wheels without Welding Using Finite Element Simulation

2007 ◽  
Vol 340-341 ◽  
pp. 773-778
Author(s):  
Y. Abe ◽  
J. Watanabe ◽  
Kenichiro Mori
Keyword(s):  
Finite Element ◽  
Finite Element Simulation ◽  
Optimum Design ◽  
Deep Drawing ◽  
Outer Side ◽  
Forming Process ◽  
Multi Stage ◽  
Element Simulation ◽  
Automobile Steel ◽  
The One

A forming sequence of one-piece automobile steel wheels without welding was designed. In this forming process, the one-piece wheel was formed from a circular blank only by multi-stage stamping operations, and a deeply drawn cup was formed into the wheel. Two humps of the rim flange for fixing the tire were formed in the flaring and flanging stages. The humps of the rim in the opening and outer side were formed by buckling the inner flange of the rim, and by swelling the outer flange with an upper die having a short land, respectively. In addition, the number of stages was considerably reduced from 16 stages to only 9 stages by combining the deep drawing and ironing stages and by adding a holding die in the flaring stages. The forming sequence of the one-piece wheels was evaluated by both finite element simulation and miniature experiment.

The Analysis of the Interface States of Low-Density Materials in the Forming Process

2012 ◽  
Vol 503-504 ◽  
pp. 696-699
Author(s):  
Qiao Li Wang ◽  
Yu Dong Zheng ◽  
Xin Liang ◽  
Ying Ling ◽  
Kun Qiao ◽  
...  
Keyword(s):  
Finite Element ◽  
Theoretical Analysis ◽  
Finite Element Simulation ◽  
Interface State ◽  
Interface States ◽  
Finite Element Models ◽  
Low Density ◽  
Forming Process ◽  
Element Simulation ◽  
Main Factors

The interface of two low-density materials is bent in the forming process, which decreases the performance of materials. The theoretical analysis of the interface state in the forming process was taken to solve this problem, and the results indicated that the viscosity of the low-density material was very important to the interface state. The finite element simulation was also used to investigate the factors that affect the interface state. The results revealed the viscosity of material and the pressure were the main factors that affected the interface state; the stress and displacement at the interface could be accurately predicted by the finite element models. The ultimate aim was to modify the relevant parameters in a way that could obtain the required interface states.

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