Auto partsPress formingSpringbackTime-dependenceCAEImprovement of die tuning efficiencyImprovement of shape prediction accuracy

Material Evaluation and Analysis Solutions

Press-Formed Part Shape Change-Over-Time Prediction System

"Next-level" high-accuracy FEM prediction captures time-dependent deformation!

Solution Point

Improvement of CAE prediction accuracy incorporating time-dependent shape changes.
Supports the design of press dies with minimal shape change.
Reduces the occurrence of defective parts by improving quality stability.

Features 01

Expected Problems

Aren't you having these kinds of problems in press forming?

• Dimensional defects due to changes in the formed part shape after several days.

• Inadequate shape prediction accuracy of press-forming CAE.

• Shape changes between in-line inspection and shipping inspection.

Features 02

Technology highlight

• Shape changes occur in press-formed parts with the passage of time after die release (Fig.).

• FEM analysis can acquire the springback shape and residual stress immediately after die release.

• Sets stress conditions to relax/reduce residual stress by 5 % or more, and calculates the balance of moments of force by analysis.

• Contributes to improve dimensional accuracy predictions by enabling prediction of deformation due to time-dependent stress relaxation under condition without external loading.

Features 03

Proposed Solutions (Examples)

Software for prediction of time-dependent springback of press-formed parts.

Links 01