Simulation-driven Multi-pass Drawing
仿真驱动的多道次深冲排程
标签：仿真, 多道次, 拉深比, 减薄预测, 虚拟试模
用 AutoForm 或 PAM-STAMP 规划紫铜多道次深冲：首道拉深比上限设 1.9、二道 1.35、三道 1.25；虚拟凸模圆角取 5 倍料厚起试。仿真输出的减薄云图中任一点超 28% 即报警调整道次分配。摩擦系数按润滑实测标定（0.08–0.15），先跑一步拉深与实测壁厚比对、偏差修正后再算全流程，可把虚拟试模次数从 5–6 轮压到 2 轮，开模前即可确定道次与压边力曲线。
Plan multi-pass copper drawing in AutoForm or PAM-STAMP: cap draw ratios at 1.9 / 1.35 / 1.25 for passes one to three, and start virtual punch radii at 5× sheet thickness. Flag any thinning cloud spot over 28% and redistribute passes. Calibrate friction (0.08–0.15) from measured lubricant tests: run pass one, compare predicted vs measured wall, correct, then solve the full sequence. Virtual tryouts drop from 5–6 rounds to 2, locking passes and blank-holder curves before die cutting.
