Multi-layer Stacked Folding
多层叠加折叠技法
标签：多层折叠, 叠加肌理, 鳞甲效果, 同步锤压, 分层展开
将两到三张薄铜片叠合后一起对折锤压，展开时各层因受力微差产生错位肌理，类似鱼鳞或羽片。进阶做法是对每层预先做不同弧度的折，叠合后统一锤压，分层展开可得到层次丰富的立体表面。注意层间需夹薄纸防焊死，退火时也要分层避免黏连。
Stack two or three thin copper sheets and fold-hammer them together; on opening, slight force differences between layers create offset texture like fish scales or feathers. Advanced: pre-fold each layer to a different arc, then hammer as one; opening layer by layer yields richly layered relief. Place thin paper between layers to prevent sticking, and anneal them separately to avoid fusion.