Application Of The CAD/CAE Technology In Expansion Tank Injection Mold Design

Mold is the main technological equipment of industrial production and also thebasic industry of the national economy. Industrial development demands higherquality of the mold forming. The traditional mold design ways based on experience,repeated mold testing, mold repair cannot meet the current requirements of currentmold design. CAD/CAE technology can efficiently complete mold design. Simulationanalysis of mold flow analysis software can predict potential pitfalls of mold,re-design the mold structure, optimize the process parameters, reduce the tryout timesand improve production efficiency.As for the unreasonable mold structure design of expansion tank for the car in theactual production and the after molding defects such as warpage problem, this papershows systematic design and calculation to products mold structure along withinjection mold design theory, uses CAE technology for simulation analysis ofinjection molding process, optimizes the design of mold structure, obtains areasonable structure and solves defects in products. Finally, the overall moldmodeling is completed by CAD (computer aided design) technology. The main workof this paper is as follows,1.Through access to a large number of relevant literature materials, this paperdescribes the research background of this design and also the development status andfuture trends of mold CAE technology.2.Through experience and theoretical formula, this paper completes thepreliminary design to the main structure of the mold according to mold design processand principles, determines the size of the mold, flow channel diameter, the size of thecooling water and prepares for the next CAE mold flow analysis and UG modeling.3.This paper introduces relevant basic theory of Moldflow injection moldingprocess, determines the best feed entrance point of sprue in products by Moldflowbest feed entrance point analysis and prepares for the next runner systemoptimization.4.Make simulation analysis to the preliminary designed gating system byMoldflow fill analysis module. Based on the analysis results, re-design the size ofrunner and get the balanced runner system.5.Make simulation analysis to the preliminary designed cooling module byMoldflow cooling analysis module. Based on the analysis results, re-design thecooling system and make products achieve uniform cooling. By optimizing the cooling time, shorten the molding cycle and improve production efficiency.6.Make simulation analysis to warpage after products molding by Moldflowwarpage analysis module and find the main cause of warpage. By adjusting theprocess parameters, reduce the warpage deformation value of products.7.By geometric modeling function of UG and mold CAD design process, applysoftware modeling command flexibly and complete the overall structure design of themold.