Flow Analysis of Insert Molding Using Injection Molding CAE

Injection molding CAE is employed to analyze the flow process of insert molding. The goals of the analysis are to reduce the number of injection processes required in injection molding, to impart greater added value to the product, and to advance injection molding technology. The importance of an analysis for the weld lines that occur when the mold is filled with plastic and that may lead to lower product quality in addition to an displacements in the insert-molded part due to plastic shrinkage is pointed out. This paper will report about the importance of the previous injection molding CAE for actual fabrication to investigate the product shape design and molding conditions.

Key Technologies Research on Section Display of Full 3D Gas-Assisted Injection Molding Simulation Results

The section display technology of full-3D gas-assisted injection molding CAE results can describe the plastic melt filling and gas penetration inside the complex gas-assisted product. So, the key technologies of section display of "effective element" algorithm which is based on the pure space analytic geometry thought were introduced in detail. In the end, an instance was given.

The Shell of Internal Combustion Tamping Pickax Injection Molding CAE Technology Research

This article establish the physical and mathematic model of the plastic housing of the ND-5 internal combustion tamping pickax by plastic molding CAE, analyse the flow field in injection molding. We simulate many programs of the injection molding processing , analyze the mold-filling characteristic of the programs, study the defect situation and select the best injection molding program for the moulding.

Molding CAE Technology and its Application Research

In this paper, the study of numerical simulation method used in jet molding CAE major technology is carried out, including simulation of filling flow process, keeping the stress process, cooling process, warping deformation and molecular orientation and so on; also makes a system induced study on injection molding CAE successfully applied in the injection mold design.

Injection Molding Simulation of 3D Stacked-Chip Assembly Packaging with Different Entrances

This paper adopts a three-dimensional (3D) finite element method to simulate the injection molding of organic 3D stacked-chip assemblies. The geometry model of the assembly is simplified to a five-layered structure of stacked-chips with no solder bumps. The injection molding process incorporates 3D stacked-chip packaging and encapsulation techniques, and comprises primarily of multi-layer cavity-filling and reactive-thermosetting curing processes. The current investigation considers the effects of specifying different entrances on the resultant flow fronts, air-traps, and weld-lines. In general, the present results confirm the value of performing numerical simulations of the 3D stacked-chip packaging process to support the injection molding CAE approaches which are commonly applied nowadays to improve the packaging assembly design and to facilitate the rapid set up of mass-production conditions. The simulation results indicate that the best packaging results are obtained when the melt is introduced either at the center of the periphery side of the stacked-chip modulus or at its corner.