A liquid aluminum alloy electromagnetic transport process for high pressure die casting

2016 ◽  
Vol 234 ◽  
pp. 217-227 ◽  
Author(s):  
Xixi Dong ◽  
Xiusong Huang ◽  
Lehua Liu ◽  
Liangju He ◽  
Peijie Li
2016 ◽  
Vol 16 (2) ◽  
pp. 45-50 ◽  
Author(s):  
S. Gaspar ◽  
J. Pasko

Abstract Recent research in the process of aluminum alloy die castings production, which is nowadays deeply implemented into the rapidly growing automobile, shipping and aircraft industries, is aimed at increasing the useful qualitative properties of the die casting in order to obtain its high mechanical properties at acceptable economic cost. Problem of technological factors of high pressure die casting has been a subject of worldwide research (EU, US, Japan, etc.). The final performance properties of die castings are subjected to a large number of technological factors. The main technological factors of high pressure die casting are as follows: plunger pressing speed, specific (increase) pressure, mold temperature as well as alloy temperature. The contribution discusses the impact of the plunger pressing speed and specific (increase) pressure on the mechanical properties of the casting aluminum alloy.


2018 ◽  
Vol 12 (6) ◽  
pp. 955-963
Author(s):  
Makoto Nikawa ◽  
Kengo Usui ◽  
Hiroaki Iwahori ◽  
Atsushi Sato ◽  
Minoru Yamashita ◽  
...  

A method for the estimation of the die release force of die castings of JIS-ADC12 aluminum alloy manufactured through high-pressure die casting was examined. The die release force was evaluated by the strain in the axial direction of the extrusion pin when releasing the die castings. In this research, it was assumed that the factors that influenced the die release force were the thermal deformation of the die and die castings and the reaction layer of Al and Fe generated during the solidification process in the die. These factors in the resistance of the die release were evaluated by the friction coefficient. The die and die castings temperature in the die release process were simulated, and calculation results were mapped onto an FE model, and a coupled analysis of the thermal structure was performed. The calculated value of the mold release force was approximately the same as the actual value, and the friction coefficient was estimated to be approximately 0.5.


Sign in / Sign up

Export Citation Format

Share Document