Stamping Principles and Process Types
冲压工艺原理与分类
标签：冲压原理, 分离工序, 成形工序, 冷冲压
冲压按变形性质分为分离工序（落料、冲孔、切断）与成形工序（弯曲、拉深、翻边）两大类。板料在模具间隙合理、压边力足够时产生塑性流动而非断裂。铜与黄铜延伸率好、适合中深拉深；青铜硬度高、多用于冲裁与精冲。
Stamping splits into cutting operations (blanking, piercing, shearing) and forming operations (bending, deep drawing, flanging). With proper die clearance and sufficient blankholder force the sheet flows plastically rather than fracturing. Copper and brass, with good elongation, suit medium deep drawing; harder bronze is preferred for blanking and fine blanking. ---