Page 4 - Moldex3d training Manual

2.6.4 Gate Contribution ................................................................................................................ 54
2.6.5 Temperature ........................................................................................................................ 54
2.6.6 Shear Stress.......................................................................................................................... 56
2.6.7 Pressure ............................................................................................................................... 57
2.6.8 Shear Rate ............................................................................................................................ 58
2.6.9 Fiber Orientation ................................................................................................................. 58
2.6.10 Particle Tracer ...................................................................................................................... 61
2.6.11 Sprue Pressure curve ........................................................................................................... 61
3 Day 2 Level 2 - Maintaining flow balance by adding runner system (Pack analysis)......................... 63
3.1 Level 2 Theory (1/3) - Runner Balance ........................................................................................ 63
3.1.1 Objective of Level 2 Analysis ............................................................................................... 63
3.1.2 Gate types ............................................................................................................................ 63
3.1.3 Runner Design Considerations............................................................................................. 66
3.1.4 Difference between Hot Runner and Cold Runner.............................................................. 71
3.1.5 Meshing of Runner System .................................................................................................. 73
3.2 Model setup ................................................................................................................................. 74
3.2.1 Create a copy run from Level 1 project ............................................................................... 74
3.2.2 Moldex3D Studio ................................................................................................................. 74
3.3 Level 2 Theory (2/3) - Material, Process Condition and Parameters .......................................... 82
3.3.1 Material................................................................................................................................ 83
3.3.2 Process ................................................................................................................................. 84
3.3.3 Computation Parameters .................................................................................................... 87
3.4 Project Setup (1 hours) ................................................................................................................ 88
3.5 Level 2 Theory (3/3) – Minimum output and Criteria ................................................................. 99
3.5.1 Minimum report output for Level 2 .................................................................................... 99
3.5.2 Checking criteria ................................................................................................................ 102
3.6 Result interpretation for Level 2................................................................................................ 102
3.6.1 Melt front time .................................................................................................................. 102
3.6.2 Temperature ...................................................................................................................... 103
3.6.3 Molten core ....................................................................................................................... 105
3.6.4 Frozen Layer Ratio ............................................................................................................. 107
3.6.5 Pressure ............................................................................................................................. 108
3.6.6 Volumetric Shrinkage......................................................................................................... 109

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