In this paper, some molding process parameters such as injection time, packing time, packing pressure and process temperature etc. were optimized by the Computer Aided Engineering (CAE) simulation (Moldex 3D) for injection molding of a plastic lens. Some experimental trials were carried out for verifying of the CAE simulation results with checking of the lens shrinkage and birefringence etc. as well. The results showed that, the recommended molding process parameters from CAE simulation and the actual experiments were almost the same, hence the CAE is a established tool based on the scientific approach to reduce experimental works, to identify critical parameters and to save substantial costs. Lately, a perfect plastic lens was gained by the Injection–Compression Molding process with the optimized process parameters by a CAE simulation. Introduction The Plastic lens made by the injection molding process is one of the most demanding plastic fabrication process, which requires some stringent conditions in terms of stress-free and accurate profile of final products to meet the optical design requirements such as accurate transmission of light rays, narrow focus length tolerance, etc. Using Computer Aided Engineering (CAE) simulation tools, alternative design and process parameters can be explored before embarking on expensive molding trials. The lead-time for mold manufacturing and process cycle time can hence be significantly reduced, resulting in substantial operational cost savings. Furthermore, potential-molding problems can be detected early in the mold design stage prior to the mold making. This can shorten product development cycles and speed up the introduction of new products or alteration of existing product designs to meet constantly changing demands in the marketplace. In this simulation, the product tested is an Optic Lens that is used for the data transmission. Thus, the amount of the mold-in stress, shrinkage (Fig.1), etc., become extremely important, and any deviations in profile or mold-in-stress would deviate the accurate transmission of data. CAE for injection molding will be done to test and check for process feasibility, optimize process parameters as well as to determine the most critical parameters, which will influence lens quality. The result will then be compared with the actual mold trail parameters to further investigate the effects of injection molding process on the final product.
I am Frank,works as sales manager of Bestar China Co.,Ltd.which is a reputable China plastic injection mold maker of plastic injection molding with over 15 years.
If you are looking for a China molder maker to make your injection mold,you can contact me at any time.
My company website: http://www.bestar-china.com/
If you are looking for a China molder maker to make your injection mold,you can contact me at any time.
My company website: http://www.bestar-china.com/
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