: Open the DEFORM-3D pre-processor and select "New Problem" . Choose your project directory and assign a name, such as "Stub_Shaft" or "Forging_Test".
| Issue | Likely Cause | Solution | | :--- | :--- | :--- | | | Interference (dies penetrating billet at Step 0) | Move the dies apart in CAD, or use Inter-object -> Positioning to separate them. | | Mesh tears apart / Negative Jacobians | Step size too large. | Halve your Step size per stroke (e.g., from 0.075mm to 0.0375mm). | | Load is 1,000,000 tons (unrealistic) | Material is defined in tons/mm² but your units are wrong. | Check Simulation Controls -> Units before running. | | Billet flies away | Forgot to set friction. Frictionless metal slides infinitely. | Set Friction: Shear 0.12 . | deform 3d tutorial
: Load STL or CAD files for your workpiece and tools (punch, die). Geometry Repair : Open the DEFORM-3D pre-processor and select "New Problem"
: Select materials from the built-in library, such as AISI 1020 steel for workpieces or carbide for tooling. | | Mesh tears apart / Negative Jacobians