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Validation — 3DXpert Simulation

Complexity Without Compromise: Achieving First-Time-Right Accuracy on Your Local Machine

Product 3DXpert Simulation Material AlSi10Mg Process LPBF
Official Oqton publication

Overview

As 3D printers get larger and geometry gets more complex, simulation requirements increase — and with that, the need for ever higher computing power. Oqton solved this bottleneck without compromising on accuracy. This article presents a heat exchanger simulation that proves it is possible to simulate massive complexity with high precision on a standard workstation.

The Challenge

Oqton validated its simulation engine on a "gold standard" of complexity: a massive heat exchanger featuring high-density intensification geometry and ultra-thin walls.

Part Dimensions
430mm × 260mm
Total Volume
1,900 cm³
Wall Thickness
0.7mm
Surface Area
3.58 m²

Traditional tools often struggle here, producing jagged, inaccurate meshes on such fine features. Engineers are frequently forced to offload to expensive dedicated servers just to succeed.

The Approach: Zero Simplification

Oqton's approach uses a "Zero Simplification" mindset — combining the Simulation Engine with 3DXpert's hybrid geometrical kernel, which seamlessly integrates B-Rep, Mesh, Lattice Beams, and Implicit geometries.

This architecture projects the simulation mesh directly onto the high-fidelity CAD surface, capturing the exact shape of 0.7mm walls where features are finer than the element size. The non-linear mechanical simulation accurately captures the plastic behavior of AlSi10Mg, while the thermal simulation explicitly considers the surrounding powder bed.

Entire simulation executed on a standard engineering workstation — Intel Core i7-14700K, 128GB RAM, Nvidia RTX 4500 Ada. No supercomputer required.

Results

Mechanical Validation

Processing 2.9 million elements in just 8 hours 15 minutes on a standard workstation.

0.7mm
Max deformation predicted — precisely compensated
~3%
Peak plastic strain — safely below 4–7% crack threshold
8h 15m
Full mechanical analysis — single workday

Thermal Verification

Model extended to 6.7 million elements including surrounding powder bed, simulating the full thermal history of a 60µm process triple laser 30-hour print.

131°C
Max part temperature — below critical threshold
✓
Thermal stability confirmed — no added wait times needed
✓
Ready for maximum throughput

Conclusion

This simulation confirmed that the heat exchanger is fully ready for production. Thermal stability was verified to ensure process safety, and complex deformations were captured to generate an accurate compensated model. This dual validation eliminated the need for physical trial and error.

Oqton empowers engineers to achieve "First-Time-Right" confidence directly from a local workstation, without the hardware bottleneck.