This project aims to study the microstructure of aluminum alloy grade A356 through the stimulation of stress and partial melting (Strain Induced Melt Activating, SIMA) by means of provoking tension with the press of cold forming. before melting some Variable process from the study contains four variables by three factors including the ratio of the thickness of the workpiece, the diameter of the workpiece (Height: Diameter Ratio) is 1, 1.25 and 1.5, respectively, the speed of the press (Compressive Velocity) is 15. , 20 and 25 mm / min, respectively, the force used to press (Compressive force) was 50, 75 and 100 tons, respectively, and the percentage reduction of the height of the specimen (% RA) is 30%. 40% and 50% for the essay is divided into three parts: the first test preparation materials for the two models of the distribution of stress by the commercial program, and the third stimulating nerves with the press. The material is prepared from the first to the press by the hydraulic press machine according to the press. In the trial will be divided into nine trials using a L9 Taguchi Orthogonal Array in experimental design. The drawing to a partially melted at a temperature of 595 ° C for 35 minutes, which is semi-solid, liquid temperature. After leading the work to determine the microstructure. A grain diameter The shape factor And the ratio of liquid And compared with the results of the simulation in the second. The effect of stress distribution induced by the press to influence the grain structure ball. Experiments using a L9 Taguchi Orthogonal Array in experimental design. The drawing to a partially melted at a temperature of 595 ° C for 35 minutes, which is semi-solid, liquid temperature. After leading the work to determine the microstructure. A grain diameter The shape factor And the ratio of liquid And compared with the results of the simulation in the second. The effect of stress distribution induced by the press to influence the grain structure ball. Experiments using a L9 Taguchi Orthogonal Array in experimental design. The drawing to a partially melted at a temperature of 595 ° C for 35 minutes, which is semi-solid, liquid temperature. After leading the work to determine the microstructure. A grain diameter The shape factor And the ratio of liquid And compared with the results of the simulation in the second. The effect of stress distribution induced by the press to influence the grain structure ball.
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