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The cooling system design selection plays an important role in a product cooling process in injection molding. This study presents an analysis of the uniform cooling of plastic products with a variety of cooling systems using the CFD method. Good cooling design, able to uniform the temperature drop in plastic products. There are two types of cooling system variations used, namely the conformal cooling channel system and the straight cooling channel system using the volume of fluid model with the k-epsilon turbulent model. The mold material used is steel and the plastic material used is polypropylene. The simulation results using the CFD method show that the variations in the conformal cooling channel system resulting from a decrease in temperature for each product are more uniform, as evidenced by the color of the contour experiencing light green degradation on all sides of the product, the maximum temperature value is 422, 44 ° K and the minimum temperature value is 338. , 00 ° K, while the straight cooling channel system has a non-uniform temperature reduction, as evidenced by the value with the contour color that is still orange, the maximum temperature value is 473.11 ° K.

COOLING UNIFORMITY ANALYSIS of INJECTION MOLDING PLASTIC PRODUCTS WITH COOLING SYSTEM VARIATIONS USING CFD METHOD