Optimization of injection molding process for short carbon fiber reinforced plastics based on response surface methodology
The injection molding process of short carbon fiber reinforced plastics was analyzed with the sheet structure as the research object based on Moldflow.The mold temperature,melt temperature and holding pressure were taken as the factors and the maximum warpage deformation and maximum volume shrinkage as the target response to optimize the injection molding process by BBD of response surface methodology.The results show that the holding pressure is the most significantly process parameter affecting the target response.The maximum warpage deformation increases with the decrease of mold temperature,melt temperature and holding pressure.With the increase of melt temperature and the decrease of holding pressure,the maximum volume shrinkage rate is enhanced after packing.The optimum process parameter combination is that the mold temperature is 100℃,the melt temperature is 280℃,and the holding pressure is 100 MPa.
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