Introduction:
Parts that are manufactured by injection molding are typically thin parts i.e. parts for which one dimension (the thickness) is much smaller than the two other dimensions. If the part contains an interior hole, the formation of a weld line cannot be avoided. A weld line is the curve along which two separate meltfronts meet. Because of mechanical and/or aesthetic reasons it is important to have the weldlines occur in locations where they can least affect the intended use of the part. The objective of this assignment is to simulate the effect of the gate location on the location of the weldline.
Geometry:
· all dimensions are in mm
· wall thickness is 2 mm
· suggested mesh division 15
Material:
Novodur PKT5, ABS from Bayer USA
Processing Conditions:
Melt Temperature: 225 °C.
Mold Temperature: 65 °C.
Fill Time: 1 sec.
Packing Pressure: 100 MPa.
Packing time: 2 sec.
Results:
Filling
Time Simulation
Temperature
Contour
Instant
Temperature Contour
Drop
Pressure Contour
Weld
Lines
Bulk
Shear Rate
Bulk
Stress
Air
Traps
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