Download - Mold flow from hi precision
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Moldflow Analysis Moldflow Analysis ReportReport
HOUSINGHOUSING_UPPER_UPPER
2005.03
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Analysis the product’s flow, cooling , warpage conditions according to customer’s design .So as to we can achieve the reasonable process via good design of cooling and runner system.
ANALYSIS AIMS
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Outline dimension ( 458.6 X 288.8X50.5 )
Part Model Introduction
Thickness distribution is indicated as figure. The base thickness is 2.5mm.
50.5mm
288.8mm
458.6 mm
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
1. Melt Density 0.91818 g/cu.cm2. Solid Density 1.0215 g/cu.cm3. Ejection Temp. 100.0 deg.C4. Recommended Mold Temp. 44.0 deg.C5. Recommended Melt Temp. 235.0 deg.C6. Absolute Max. Melt Temp. 300.0 deg.C
7. Min melt temp. 200.0 deg.C 8. Max melt Temp. 270.0 deg.C 9. Min mould temp. 33.0 deg.C10. Max mould temp. 55.0 deg.C11. Max shear rate 40000.00 1/s12. Max shear stress 0.30 MPa
Plastic Material Introduction
Viscosity profiles
PVT profiles
HIPS HIPS Styron H9152T: Styron H9152T: Dow Dow Chemical USAChemical USA
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Feeding System Design
Feeding system is created according to the customer’s design.
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Cooling System design
Cooling system is created according to customer’s design.
Φ10mmBaffleΦ25mm
Φ10mm
Cavity side
Core side
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
9 20.0 t(s)
P(MPa)
84.5
Processing conditions
Filling Conditions :
Mold temperature : 44.00 deg.C
Melt temperature : 235.00 deg.C
Injection time : 2.2 sec
Cooling Conditions:
Coolant Temperature(Cavity) 34 deg.C
Coolant Temperature(Core) 34 deg.C PRESSURE[MPa] STEP DURATION [sec]
84.5 0.0
84.5 9
Packing is 80% max injection pressure
Packing profile :
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Fill time
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Fill time series
Last filled area
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Distribution of flow front temperature is mostly even,but in some rib area ( circle area, indicated in picture ) the temperature decreased a lot. Because hesitation occurred in this area for the relative thin ribs.
Temperature at flow front
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Part totally frozen , runner has frozen 60%.
Frozen layer fraction
Gate frozen, Packing stopped.
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Temperature distribution is indicated as the figure.
Temperature (top) , part
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Temperature (bottom) , part
Temperature at core side is some high in some ribs and boss area.
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Weld lines
Weld line may occurred at the black-line locations in the figure.
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Air traps
Air traps may occurred at pink circle area as the figure shows.
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Sink mark depth
Original
Improved
Sink mark depth can be decreased via packing profile adjusting.
P(MPa)
95
Increasing packing pressure so as to decrease the sink mark
6 9 20.0 t(s)
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Injection pressure & clamping force
Injection pressure
clamping force
Max.: 105.7 MPa
Max.: 496.5 ton
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Shape in the picture has been scaled 10 times 。
Introflexion
Totally Deflection
IntroflexionIntroflexion
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Deflection’s differential influence
Warpage are caused by uneven cooling and uneven shrinkage.
Cooling shrinkage
Orientation
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Deflection , caused by uneven cool ( original )
Water inlet
34 deg.C
introflexion
0.81mm
0.50mm
Cooling result is better in left side compared to the right 。
Original
introflexion
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Water inlet
20 deg.C
0.68mm
A better cooling conditions on right side will decrease the side introflexion 。
Deflection , caused by uneven cool ( improved )
Improved
0.45mm
introflexion
introflexion
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Original injection profile
The shrinkage are not so even , the two side indicated in the figure are trend to protrude outside 。
Deflection , caused by uneven shrinkage ( original )
Original
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
The shrinkage towards inside are even , and the shrinkage value has been compensated via material’s shrinkage.
Deflection , caused by uneven shrinkage ( improved )
Improved injection profileImproved
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Moldflow Analysis ReportMoldflow Analysis Report
Reported by: Tom
Conclusion & Comment
Gets from the results : The flow pattern is mostly balanced; Be care those locations that may occur weld line
or air trap 。 There will be some warpage on the molding
part. The sink mark would occurred on the part
surface, We could make it better via good packing condition .