Deform 3d Tutorial May 2026

This is where many beginners fail. You cannot simulate a material without a flow stress curve.

What just happened? DEFORM now knows the Young's Modulus, Poisson's ratio, thermal expansion, and most importantly, the Stress-Strain curve (Flow stress) for Al6061 at room temperature.

Objective: Execute the solver.

To see if your forging die will crack under pressure.

This is where you define the physical components of your simulation. deform 3d tutorial

  • Define the Mesh: DEFORM uses the Finite Element Method, meaning it breaks your part into small pieces (elements).

    • The "Hello World" of forging simulation is the Upsetting Test. You take a cylinder, squeeze it between two flat dies, and observe the barreling effect.

    | Issue | Likely Cause | Solution | | :--- | :--- | :--- | | Simulation crashes immediately | 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. | This is where many beginners fail

    | Problem | Likely Cause | Solution in Deform 3D | | :--- | :--- | :--- | | Simulation won't start (0 steps) | Missing movement on Top Die | Check Object 2 "Movement" tab. Ensure "Die Load" is not zero. | | Mesh blows up / Tangles | Step size too large | Reduce "Step size to mesh ratio" below 0.5. Enable "Frequent remeshing" (every 5 steps). | | Volume loss (Object gets smaller) | Punch exceeds boundary box | Increase the "Stroke limit" or move the die starting position closer. Lower the "Penalty" stiffness. | | Too slow (Days to run) | Too many elements | Reduce element count. Use "Local Mesh" (fine only at contact). Increase Step size slightly. | | Folding defect predicted | Bad die geometry | In Post, use "Fold" detection tool. Redesign die radius. |