Page 3 - Moldex3d training Manual

Contents

1 Day 1 - A Successful Injection Molding Analysis - Overview ................................................................. 6
1.1 Objective ........................................................................................................................................ 6
1.2 Level 1 – Achieving an Initial Flow Balance ................................................................................... 6
1.3 Level 2 – Maintaining Flow Balance by Adding a Runner System ................................................. 6
1.4 Level 3 – Balancing Flow and Thermal Properties through Adding a Cooling System .................. 6
1.5 Level 4 – Optimizing Part Dimensional Stability ............................................................................ 6
2 Day 1 Level 1 - Achieving flow balance (Flow analysis) ....................................................................... 7
2.1 Level 1 Theory (1/3) – Flow Balance .............................................................................................. 7
2.1.1 Objective of level 1 analysis ................................................................................................... 7
2.1.2 How to determine how many gates ...................................................................................... 7
2.1.3 How to determine where to place gates ............................................................................... 8
2.1.4 Meshing Theory ................................................................................................................... 11
2.2 Model Setup................................................................................................................................. 15
2.2.1 Moldex3D Studio ................................................................................................................. 15
2.3 Level 1 Theory (2/3) – Material, Process Condition and Parameters.......................................... 26
2.3.1 Selecting a Material for Simulation ..................................................................................... 26
2.3.2 Process Parameters for Filling ............................................................................................. 28
2.4 Run Setup ..................................................................................................................................... 29
2.4.1 Run type ............................................................................................................................... 29
2.4.2 Import Mesh ........................................................................................................................ 30
2.4.3 Select Material ..................................................................................................................... 30
2.4.4 Process setup ....................................................................................................................... 37
2.4.5 Computation parameters .................................................................................................... 42
2.4.6 Launch Computation............................................................................................................ 45
2.5 Level 1 Theory (3/3) – Minimum Output and Criteria ................................................................. 46
2.5.1 Minimum report output for Level 1 .................................................................................... 46
2.5.2 Checking criteria .................................................................................................................. 46
2.6 Results interpretation for Level 1 ................................................................................................ 52
2.6.1 Melt Front Time ................................................................................................................... 52
2.6.2 Weld Line ............................................................................................................................. 53
2.6.3 Air Trap ................................................................................................................................ 53

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