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ABSTRACT
This paper is the research of the expert system for mechanism design to introduction all process. It is more and more important in pre-simulation and analysis because the industry trends in the high accuracy and complex shape product. Depend on the design of operator‘s experience is not enough, need ensure design using by anticipation of mold flow analysis to reduce the times of injection molding, cost down effectivity, speed up the product development and shorten cycle time.
Mold flow analysis is mainly to see the fluid filling, cooling, shrinkage, warping deformation of the situation, that can anticipate the trends and change situation before the mold is made design, so that is equal of the mold testing on computer. The advantage is saving the time and cost of testing mold, and also shorting of schedule the mold project.
This research is using the software “Moldflow” in mold flow analysis, the visualization process of Computer-aided analysis (CAE), supply the crucial role on building the bridge between each department and also using the analysis result to evidence and avoid the bad design.
The characteristic of plastic materials, do initial analysis, “ABS+PC” material as the temperature changes is smaller viscosity changes and better fluidity by different temperature. Compare with ABS+PC and PC materials by simulation result, PC material is smaller deformation but it is difficult to padding so choosing the materials “ABS+PC”.
The analysis of gate location is using the flow method and path of plastic product that is most of important factor. So the padding balance and shorten path is best choice and the first priority is reducing the flow channel scraps. Notice to injection of preforming gate location feasibility. The optimization of the upper cover on both sides of the variant symmetry, mold adjustment less, according to the results of this model to open the mold, the actual shape of the top cover deformation in line with the expected results of the simulation.
Keywords: Design, Mold flow analysis, Computer-aided analysis, Warping. | en_US |