CAE: what resin flow analysis can tell us

Typical calculation results

Resin flow pattern

　Time histories, such as when the molten resin arrived at a location, can be shown to indicate how the resin fills the mould. The flow pattern can be animated to visualise the flow of resin in the mould.

Resin temperature (flow front resin temperature)

　The temperature at which the resin reaches its position is called the flow front temperature. As molten resin loses its fluidity at lower temperatures, this is an indicator to check whether the resin flows fully through the mould while maintaining its fluidity.

Pressure distribution

　Resin pressure varies from moment to moment depending on the location and time of the moulded part. These changes can cause a number of moulding defects. The integrated value of the pressure distribution on the projected surface of the product when the product is viewed in the mould opening and closing direction is also widely used in terms of cost prediction, as it corresponds to the mould clamping force and determines the size of the moulding machine that performs the production.

Weld position

　When resin flows through the mould from several points, there are areas where the resin flows collide. It is known that the strength of plastic moulded products is weakened in the areas where these flows collide. When industrial parts are made by plastic injection moulding, it is necessary to prevent forces from being applied to the colliding points of the resin flows when the product is in use, and in addition to how the resin flows, it is necessary to know in advance where the resin flow stops.

～ Related Articles ～ What is Resin Flow Analysis? 3D printer: Introduction of gas venting nesters Introduction to Metal Optical Molding Gas Venting Inserts Molding Technology: Differences in Runner Types CAE: Hot Runner Valve Gate