The Rheona solver & desktop app
The simulation engine and the
workspace
you run it in.
At its core, three coupled physics solvers share one high-performance engine, JIT-compiled to native code and tuned to use every core in your machine — so full-part metal AM simulations finish on a workstation, not a cluster. Around it, a desktop app lets you import geometry, configure the build, solve, and review results in 3D, all in one place.
ONE PLATFORM, MULTIPLE ANALYSES
Structural, thermal, and sintering — coupled on one engine.
Static Structural Solver
A "dual-path" tangent-stiffness assembly resolves residual stress and distortion from the thermal history, predicting warpage, recoater interference, and post-cutoff spring-back.
Transient Thermal Solver
Optimized for flash-heating AM. Simulates layer-by-layer deposition, melt-pool heat input, conduction into the build plate, and convective loss — including dynamically tracked active top surfaces as each layer is deposited.
Viscous Sintering Solver
Velocity-based viscous formulation for binder jetting and metal injection molding. Tracks density-dependent shear/bulk viscosity, sintering stress, gravity slump, and setter friction through a furnace cycle.
THE COST OF GUESSING
Answers in hours, not weeks.
Rheona™ is engineered so the heavy math runs as fast as the hardware allows - JIT-compiled to native code and parallelized across every core. Full-part runs that tie up a cluster elsewhere finish on the workstation already on your desk.
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✓ Use every core — assembly and solve scale across your whole CPU automatically.
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✓ Robust direct solver — converges reliably on stiff, large industrial models.
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✓ Smart re-use — repeated increments skip redundant work, so long runs stay fast.
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✓ Memory-efficient — solve bigger meshes on the RAM you already have.
PROCESS COVERAGE
Built for how metal parts are actually made.
Rheona maps the right physics to your process family — from fusion-based powder bed to bound-metal sintering — out of the box.
Laser Powder Bed Fusion
Layer-by-layer thermal and inherent-strain analysis for LPBF — distortion, residual stress, and recoater risk.
Directed Energy Deposition
Deposition-driven heat input and structural response for DED builds and large-format parts.
Metal Binder Jetting
Green-to-sintered shrinkage and slump prediction for MBJ, with geometric compensation for the furnace cycle.
Cold Metal Fusion
Bound-metal CMF parts: viscous sintering with setter friction and gravity through ramp, soak, and cool.
Each process maps to the relevant analysis — thermal, inherent strain, or viscous sintering — with guided, technique-specific settings.
WHAT YOU CAN PREDICT
Catch the failure on screen, not on the plate.
Distortion & warpage
See where the part pulls out of tolerance and how much it springs back after cutoff
Recoater interference
Flag layers where curl lifts the part into the recoater path and risks a crash.
Residual stress
Locate the stress hotspots that crack parts or tear supports, and test fixes before you build.
Sintering shrinkage
Predict the 15–20% densification of binder-jet and bound-metal parts for accurate green-part compensation.
Thermal history
Track peak temperatures, gradients, and cooling rates that drive microstructure and defects.
Geometric compensation
Compare the simulated result to nominal CAD to derive the pre-deformed geometry that prints true.
WORKFLOW
From geometry to insight.
IMPORT
CONFIGURE
SOLVE
AI REVIEW
THE DESKTOP APP
One workspace, from CAD to conclusion.
No scripting, no stitching tools together. Set up the build, launch the solver, and explore every result in an interactive 3D view — all in a single native application.
Automate at scale
Drive the same simulations from scripts and batch jobs, so overnight sweeps and design-of-experiments studies run themselves.
Everything an AM engineer needs — in one window.
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✓ Real-time 3D viewport — spin, slice, and scrub through thermal, stress, and density fields frame-by-frame, smooth even on large result sets.
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✓ Universal import — STL, VTU, INP, or GCODE geometry, turned into a solve-ready model by the built-in mesher in minutes.
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✓ Guided process setup — build-plate, boundary conditions, and ramp/soak/cool sintering cycles configured through clear presets.
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✓ Organized projects — geometry, mesh, results, and settings in one tidy file, with safeguards so you never overwrite a run.
Open exports
Send results — including relative density — to ParaView and standard formats for downstream review and reporting.