Dimensional tolerances

During extrusion, dies are subject to stress and deformation. Die life, product quality and geometrical tolerances are improved by optimizing the die conception. In critical cases, zero trial dies cannot be conceived on the sole basis of the die maker's experience.

This is why MTD performs CAD die conception together with numerical simulation (Simulation-Aided Design). This allows to reduce die corrections and save trials.

Starting from standard CAD drawing, the designer launches the simulation. The system then generates both 2D and 3D model geometries, FE meshing and computation, fully automatically, without user intervention, and the resulting thermo-mechanical corrections and tongue drop prediction are available on the screen after about one minute (quick MTD FE solver).