Injection moulding simulation report

landing_disc_0688

Modeltmpqf68yoov.step
MaterialABS
Solvergrid · 11148 cells
Run2d4c20bbcf86
Date2026-10-16 02:56:45
Unitsmm / MPa / °C
SoftwareCavityX 7.0.0

landing_disc_0688

Fill simulation report  ·  run 2d4c20bbcf86  ·  2026-10-16 02:56:45

Key results

Fill time21.538 s
Filled100.0 %
Injection pressure (required)80.0 MPa
Peak cavity pressure39.2 MPa
Clamp force48.2 t
Melt / mould temperature229.9 °C / 40.0 °C
Cooling time to eject11295.9 s
Volumetric shrinkagemean 0.33 % · max 1.77 %
Max warp deflectionwarp could not build a solid mesh of this part: CAD tet mesh failed (gmsh tet meshing failed (exit 1): eshing failed after retries: size 15.9 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 12.7 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 10.2 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 8.13 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'); grid fallback failed (No module named 'tetgen')
Part mass29.17 g
Air traps / weld lines3 / 0 cells
Short shot0 cells
Fill time
21.5383 s
gate + cavity in series, Q from the pressure solve
Final fill
100.00 %
of cavity volume
Peak cavity P
39.2 MPa
gate velocity 0.6 m/s
Gate dia.
1.21 mm
auto
Melt viscosity
1500 Pa·s
melt 229.9 °C
Gate freeze-off
22.751 s
margin 1.07×

Result views

fill
Fill time
pressure
Pressure at end of fill
temperature
Temperature at end of fill
defects
Defects
sink
Sink marks
shrinkage
Volumetric shrinkage
packp
packp

Fill progress

0.0005470.2480.4950.7430.9905.3310.71621.3time (s)fill fraction

Pressure vs time

1.1811.221.231.241.207.2914.621.929.1time (s)peak pressure (MPa)

Temperature vs time

21421822222623007.2914.621.929.1time (s)peak temperature (°C)

Part & mesh

Volume27.780 cm³
Surface area287.7 cm²
Bounding box150.00 × 130.00 × 2.00 mm
Wall thickness2.11 mm mean
Part mass29.17 g
Grid cells11148 wall / 15300 total
Cell size3.000 × 2.549 × 0.333 mm
Grid reach100.0 % of 1 region(s)
Compute backendCPU (SciPy SuperLU direct)
Solve wall time10.5 s

Process

MaterialABS
Injection pressure80.0 MPa
Melt temperature229.9 °C
Mold temperature40.0 °C
Pack pressure—
Number of gates1
Control modepressure-controlled
Required / used injection pressure80.0 MPa
Mean flow rate Q = V/t1.33 cm³/s
Gate pressure drop39.8 MPa
Peak cavity pressure39.6 MPa
Gate shear rate9,658 1/s (limit 50,000)
Machine max pressurenot set

Gates

  • (-50.000, 0.181, 1.110) mm

Defects

Air traps3 (0 not reachable by a parting-line vent)
Weld / meld lines0 cells, 0 head-on
Hesitation0 cells
Short shot0 unfilled wall cells
Shear ratemax 381 1/s (limit 50000); 0 cells over; shear heating ≈ 2.6 K
Sink marks10 cells, est. max depth 0.59 mm
Clamp force48.2 t (projected area 142.1 cm²)

Packing, shrinkage & warp

Pack pressure40.0 MPa (default 50% of injection)
Hold ends23.96 s (gate freeze 2.42 s)
Volumetric shrinkagemean 0.33% · max 1.77%
PVT dataKastelic et al. 2026, Polymers 18:1310, Table A2 (ABS Polylac PA757)
Pack modeltime-stepped compressible pack/hold (Tait, Hele-Shaw, slab cooling)
Pressure at end of hold (max)40.9 MPa
Part mass29.49 g at end of fill → 29.58 g (+0.09 g fed during pack)
Warpwarp could not build a solid mesh of this part: CAD tet mesh failed (gmsh tet meshing failed (exit 1): eshing failed after retries: size 15.9 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 12.7 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 10.2 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'; size 8.13 mm: exit 1 ModuleNotFoundError: No module named 'tetgen'); grid fallback failed (No module named 'tetgen')

Accuracy limits: packing is a time-stepped compressible Hele-Shaw solve (Tait PVT) with first-mode slab cooling and frozen-layer growth, gate held at the set pack pressure (no runner/nozzle losses); residual stress from a layered thermo-viscoelastic model (in-mould constraint, Maxwell relaxation); fiber orientation is a fill-direction approximation, not Folgar-Tucker. Published benchmarks: within ~2x on a mould-ΔT case, large under-prediction on flat plates warped by unmodelled effects (see review); treat values as trend indicators, not tolerances.

Pack / hold: gate pressure

39.239.439.639.84021.851.781.7112142time (s)gate pressure (MPa)

Pack / hold: last-to-fill pressure

04.38.612.917.221.851.781.7112142time (s)last-to-fill pressure (MPa)

Part mass vs time

29.529.529.529.629.621.851.781.7112142time (s)part mass (g)