Springback of High Strength Steel with PAM-STAMP

Modern requirements in automotive and aerospace industries mean higher strength with reduced weight. This means increased use of high strength steel and aluminium parts in modern vehicle structures. The problem of springback has come to the forefront of the die engineering process. The degree of springback experienced with the latest generation materials is so high, and the materials so strong, that it is not possible to ‘correct’ the springback in the prototyping, it becomes mandatory to compensate for springback as part of the draw die design.

Characteristic of Ultra High Strength Steel

PAM-STAMP 2G has, in recent years, seen several improvements to help the engineer master the springback:

• Automatic die compensation module
• Yoshida-Uemori material model well suited for simulation of springback in HSS
• Accurate contact formulations
• Buckling detection
• Bottoming detection
• Through thickness stress element for simulation of bottoming and ironing effects

PAM-STAMP Features

• Topology check, cleanup and repair
• Material cost estimation
• Die face design next generation based on B-Spline geometry
• Fast link with simulation
• Accurate numerical methods
• Geometrical drawbeads
• Springback - Kinematic Hardening Model
• Ironing
• Triple speed mode for breathtaking short simulation times
• Precise prediction of wrinkles including folding – no numerical flattening
• Blank & Trim Line Optimization
• Springback of High Strength Steel
• (Multi-operation) compensation
• Virtual prototyping of the full stamping chain
• Cosmetic defects
• Customization
• High quality results without tradeoffs in cost and time
• Hot Forming , End-to-End Virtual Prototyping
• Chaining with manufacturing engineering and assembly prototyping
• Virtual Reality