Numerical Simulation of Extrusion Process and Die Structure Optimization for a Hollow Aluminum Profile with Thin Wall

2010 ◽  
Vol 46 (24) ◽  
pp. 34 ◽  
Author(s):  
Hao CHEN
Keyword(s):  
Numerical Simulation ◽  
Structure Optimization ◽  
Extrusion Process ◽  
Thin Wall ◽  
Aluminum Profile ◽  
Die Structure

Numerical Simulation for Extrusion Process of Thin-Wall Aluminum Profile with Large Flakiness Ratio and Optimization Die Design

2015 ◽  
Vol 778 ◽  
pp. 55-58
Author(s):  
Xiao Fei Ma
Keyword(s):  
Numerical Simulation ◽  
Design Optimization ◽  
Optimization Method ◽  
Extrusion Process ◽  
Die Design ◽  
Velocity Analysis ◽  
Thin Wall ◽  
Exit Velocity ◽  
Aluminum Profile

The numerical simulation of a thin-wall aluminum profile was introduced. Then the velocity and temperature of the extrusion process were given. A die design optimization method was proposed by the velocity analysis. After optimization, a profile with uniform exit velocity was gain. Finally, a method for this profile die design was summarized.

Numerical Simulation and Die Design for Vibration Extrusion of Spur Gear

2012 ◽  
Vol 580 ◽  
pp. 37-41
Author(s):  
Qiong Lin ◽  
Bin Meng ◽  
Qing Hua Yang
Keyword(s):  
Numerical Simulation ◽  
Flow Characteristic ◽  
Metal Flow ◽  
Spur Gear ◽  
Extrusion Process ◽  
Die Design ◽  
Forming Process ◽  
Extrusion Die ◽  
Die Structure ◽  
Metal Extrusion

The numerical simulation for spur gear vibration extrusion is performed in this paper. The metal flow characteristic and load-stroke relationship during forming process is analyzed and then compared with traditional metal extrusion process. The results revealed the axial vibration of cavity die can both reduce forming load and benefit for metal flow, which could achieve better forming quality. Finally according to the processing requirements, the vibration generator and whole extrusion die structure is designed.

scholarly journals Die structure optimization for hollow aluminum profile

2018 ◽  
Vol 15 ◽  
pp. 249-256 ◽  
Author(s):  
Shumei Lou ◽  
Yongxiao Wang ◽  
Shuai Lu ◽  
Chunjian Su
Keyword(s):  
Structure Optimization ◽  
Aluminum Profile ◽  
Die Structure

scholarly journals Simulation Analysis of Porthole Die Extrusion Process and Die Structure Modifications for an Aluminum Profile with High Length–Width Ratio and Small Cavity

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1517 ◽  
Author(s):  
Zhiwen Liu ◽  
Luoxing Li ◽  
Shikang Li ◽  
Jie Yi ◽  
Guan Wang
Keyword(s):  
Metal Flow ◽  
Extrusion Process ◽  
Width Ratio ◽  
Small Cavity ◽  
Porthole Die ◽  
Aluminum Profile ◽  
Die Structure ◽  
Length Width ◽  
Die Extrusion ◽  
High Length

The design of a porthole die is one of the key technologies for producing aluminum profiles. For an aluminum profile with high length–width ratio and small cavity, it is difficult to control the metal flow through porthole die with the same velocity to ensure the die’s strength. In the present study, the porthole die extrusion process of aluminum profile with small cavity was simulated using HyperXtrude 13.0 software based on ALE formulation. The simulation results show for the traditional design scheme, the metal flow velocity in porthole die at every stage was severely not uniform. The standard deviation of the velocity (SDV) at the die exit was 19.63 mm/s. The maximum displacement in the small mandrel was 0.0925 mm. Then, aiming at achieving a uniform flow velocity and enough die strength, three kinds of die structure modifications for the porthole die were proposed. After optimization, desired optimization results with SDV of 0.448 mm/s at the die exit and small mandrel deflection were obtained. Moreover, the temperature uniformity on the cross-section of die exit, welding pressure, and die strength were improved greatly. Finally, the optimal porthole die was verified by the real extrusion experiment. A design method for porthole die for aluminum with a high length–width ratio and small cavity was proposed, including sunken port bridges to rearrange the welding chamber in upper die, increasing the entrance angle of portholes, introducing the baffle plate, and adjusting the bearing length.

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