Embossing Process Principles
压花浮雕工艺原理
标签：浮雕原理, 凸起凹陷, 冷成形, 延展
压花靠模具将板料局部压入型腔，材料在切向受压、法向流动形成凹凸。纯凸纹（embossing）两面皆起伏；单面凹陷称"压凹（coining-emboss）"。铜、黄铜延展性好，浮雕深度可达料厚的 30%–50% 而不裂；过深需分道次渐压并退火。
Embossing forces sheet locally into a cavity so material flows normal to the surface, forming relief under tangential compression. True embossing shows relief on both faces; one-sided sinking is "debossing". Copper and brass, being ductile, take relief depth 30%–50% of thickness without cracking; deeper work needs staged passes with annealing. ---