Analysis Examples
Optimizing gate location
Analysis Outline
Purpose and description
Flow patterns in injection molding may vary depending on the gate location. If the gate is poorly located, it may
cause filling balance problems which can lead to warping (deformation). Therefore it is important to optimize
filling balance by analyzing flow pattern and pressure distribution.
Additionally, appearance defects called weld lines can form when two flow fronts come together. If these weld lines
are apparent in highly visible areas of the piece or important parts of the design, it may result in reduction of
product value or strength. In such cases, the filling pattern needs to be modified so that weld lines are less
apparent or do not affect product strength. This section compares two gate locations to optimize filling balance and
determine the location of weld lines.
Optimizing gate location
Explanation: To identify the optimal gate location to ensure good filling balance and so weld lines will not cause appearance defects or reduction in strength.
Analysis results
Flow patterns for two different gate configurations
Resin pressure distribution
Filling balance is evaluated based on pressure balance during the filling process. Lower bias in pressure.
Weld lines
Weld line locations (two flow fronts come together) are evaluated, and visualized to check if they appear in highly visible locations.
Features of optimizing gate location
- Feature 1
Filling balance can be improved by checking flow patterns for different gate locations - Feature 2
Pressure balance can be improved - Feature 3
Weld line locations can be ascertained. Appearance defects and reduction in strength can be prevented in advance
Steps of analysis
Associated Case Analysis

Resin flow in the mold

System requirements
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