Prediction of T-Shaped Tube Hydroforming Stress Limit

Lin Zhou; Xiao Min Cheng

doi:10.4028/www.scientific.net/KEM.480-481.1140

Paper Titles

Research on the Key Technology and Application of the Process Monitor Configuration System
p.1117

Topology Optimization for Vertical Electrochemical Machine Tool Based on FEA
p.1123

The Development and Experiment of the MSMA Actuator Test Platform Based on LabVIEW
p.1129

Study on Flow Field in Different Styles of Blades for Eddy Current Retarder’s Rotor Based on CFD
p.1134

Prediction of T-Shaped Tube Hydroforming Stress Limit
p.1140

Appling Data Mining Technology to Analasis Clearance Efficiency in the Port Logistics
p.1144

Five-Axis Machining Center On-Line Inspection System Based on Workpiece
p.1150

Attitude Controller Design for a Six-Rotor Type MAV
p.1155

Sensor Deployment for Location-Estimation Coverage
p.1161

HomeKey Engineering MaterialsKey Engineering Materials Vols. 480-481Prediction of T-Shaped Tube Hydroforming Stress...

Prediction of T-Shaped Tube Hydroforming Stress Limit

Abstract:

Tube hydroforming has been widely used in auto industry due to its remarkable advantages compared with conventional manufacturing via stamping and welding. The forming limit stress diagram (FLSD) which is independent of strain paths is of great significance to tube hydroforming. The FLSD of 2008T4 tube blank was established to predict fracture defect in T-shaped tube hydroforming simulation. By numerical simulation method, the stress limit and strain limit were analyzed and fracture defects were predicted. Two prediction results of the fracture defects location were the same yet the limit pressure values corresponding to fracture were different. The FLSD prediction result was close to the experiment result, so the accuracy of FLSD as tube hydroforming limit criterion was proved.