Numerical Simulation and analysis of molten flow in the shot sleeve of die casting process

PAMM ◽  
2010 ◽  
Vol 10 (1) ◽  
pp. 471-472 ◽  
Author(s):  
Roudouane Laouar ◽  
Olaf Wünsch
Keyword(s):  
Numerical Simulation ◽  
Die Casting ◽  
Casting Process ◽  
Shot Sleeve ◽  
Die Casting Process

Numerical Simulation on the Filling Process of Rheological Die Casting and Forming Defects Analysis

2012 ◽  
Vol 192-193 ◽  
pp. 293-298 ◽  
Author(s):  
Fan Zhang ◽  
Nan Nan Song ◽  
Jun Zhang ◽  
Yong Lin Kang ◽  
Qiang Zhu
Keyword(s):  
Numerical Simulation ◽  
Die Casting ◽  
A356 Alloy ◽  
Casting Process ◽  
Solid Particles ◽  
Filling Process ◽  
Die Casting Process ◽  
Defects Analysis ◽  
Semi Solid ◽  
Forming Defects

According to semi-solid slurry rheological behavior, an apparent viscosity model of A356 alloy developed based on the Carreau model was established to simulate filling process of rheo-diecasting about automobile shock absorber parts and to compare with conventional liquid filling process. Numerical simulation results showed that the filling process of rheo-diecasting was smooth but difficult to splash, which reduced the tendency of the alloy oxidation and inclusion. Meanwhile, a certain percentage of the primary solid particles precipitated before filling and solidification shrinkage of semi-solid slurry were small. This benefited to reduce or eliminate shrinkage defects of the castings. Compared with conventional liquid die casting process, rheo-diecasting process had unique advantages in reducing the internal defects and improving mechanical properties of castings.

Application of Numerical Simulation Technology on the Design of Camera Shell during Die Casting Process

2007 ◽  
Vol 26-28 ◽  
pp. 1041-1044
Author(s):  
Hong Yan ◽  
Zhi Hu ◽  
Ti Shuan Suan
Keyword(s):  
Numerical Simulation ◽  
Material Science ◽  
Die Casting ◽  
Casting Process ◽  
Practical Result ◽  
Die Casting Process ◽  
Computer Numerical Simulation ◽  
The Cost ◽  
Pressure Die Casting

The technology of computer numerical simulation on casting process is an important frontal field of material science and technology. The numerical simulations of camera shell in the pressure die casting process were carried out. The distributions of temperature and solidification time in the filling process were obtained. Based on the simulated results and the Niyama criterion G/ R , the positions of slack were predicted, which were agreement with the practical result. Consequently, an improved scheme was presented, in which the workpiece defects were obviously reduced. So it’s significant for the application of numerical simulation on improving the quality of the casting, shortening the period of producing, reducing the cost and guiding the engineer for taking reasonable method to optimize the technological design.

Numerical Simulation and Die Casting Process for Cylinder

2012 ◽  
Vol 490-495 ◽  
pp. 2362-2365
Author(s):  
Yong Huang ◽  
Yue Dong ◽  
Xiao Ming Du
Keyword(s):  
Numerical Simulation ◽  
Aluminum Alloy ◽  
Temperature Field ◽  
Die Casting ◽  
Casting Process ◽  
Processing Parameters ◽  
Mould Temperature ◽  
Pouring Temperature ◽  
Die Casting Process ◽  
Filling And Solidification

Filling and solidification for aluminum alloy packing block in die casting were simulated by numerical simulation. Distribution and change of temperature field as well as velocity field were visualized. The desirable processing parameters can be obtained with pouring temperature of 620°C and mould temperature of 180°C as well as shot velocity of 4m/s. The qualified products were obtained on the basis of the optimized die-casting parameters.

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