Springback Simulation & Compensation Workflow
冲压回弹仿真与补偿工作流
标签：回弹补偿, 仿真, AutoForm, 折弯
铜合金弹性模量低（110–120 GPa）回弹明显，仿真补偿流程：AutoForm/Dynaform 导入模具型面 → 全流程增量法求解 → 输出回弹角 → 模具型面反向偏置（补偿系数 1.0–1.5 倍回弹量）→ 重新仿真验证 ≤0.5°。黄铜 U 形折弯实测回弹 4–7°，经一次补偿迭代可收敛到 ±0.3°。补偿面加工用 CNC 直接铣补偿后型面，避免钳工手工修配的不一致。
Copper's low modulus (110–120 GPa) makes springback pronounced. Workflow: import die faces into AutoForm/Dynaform, run incremental solving, export springback angles, offset tool faces opposite the deviation (1.0–1.5× measured springback), re-simulate to ≤0.5°. Brass U-bends spring 4–7°; one compensation iteration converges to ±0.3°. Mill compensated faces directly on CNC—skip manual fitting for consistency. ---