EVA Complicated Thin-Walled Parts Based On CAE Technology Molding Defects Analysis And Optimization

With the rapid development of China’s plastics industry, and gradually expand theapplication fields of plastic products, plastic products have been widely used in variousfields of industrial, electronic, medical, and people’s daily life, and toward the complexstructure, high precision, using the superior performance direction. Currently, injectionmolding products accounted for more than half the proportion of plastic products, usedwidely, but the lack of such product filling, trapped gas, affect weld marks, warpagemolding defects on product quality, the actual production is still faced by enterprisesneed to be addressed problems. Also, due to the overall rise in labor costs in Chinacontinue, leading to the production cycle of plastic products and overall cost controlcompanies are increasingly concerned about the hot spots. Currently, most enterprisesstill rely on its engineering and technical personnel working experience and the use ofmultiple tryout way to ensure the quality of the product. Once the case of new productdevelopment of mold, many problems would be difficult to consider fully, had the needto identify and solve problems through a lot of test mode. How to shorten themanufacturing cycle molding of plastic parts, plastic parts to avoid or reduce theoccurrence rate are key issues shaping defects research engineering and technicalpersonnel.The use of computer-aided engineering analysis (CAE technology for short) thatallows the designer to study the molding simulation to further improve or optimize thedesign. It can help design changes to help overcome all difficulties, the cumulativeknowledge and experience, establish design criteria. The technology can be pre-judgethe quality of defective products appear in the injection molding process, a variety ofdesign and technology programs simulation and optimization services for thesubsequent actual production, the mold can be shortened development time, enhance thestability of the product molding process, material savings, and improve productionefficiency and product quality.In this paper, a model for the study of electrical plastic parts, Because parts ofcomplex shape, thickness thin and uneven filling of the plastic raw material liquiditydeteriorated, causing great difficulties to the parts forming, in order to solve practicalproblems encountered in the production, use Moldflow simulation software for pre-trialmold molding defects are analyzed to find the cause, suggest improvements, and furtheroptimize the injection molding process, saving time and reducing injection conditionersrely on the experience of engineers to ensure product quality, meet customer needs.Through research methods and process simulation experiment combining the elimination of plastic molding defects, optimize the molding process and molding cycleprogram plays a guiding role. During the analysis, but also effectively verify theaccuracy and feasibility of numerical simulation and the actual tryout productionbetween the establishment of the design basis. Through research and analysis, not onlycan reduce the reliance on experienced designers to reduce blindness and can also helpdesigners to quickly create a database used for injection molding (enterprisestandard).So the research aspects of injection molding simulation, optimization ofplastic products, injection mold design and actual production are of very importantsignificance.