Hybrid 3D-printed Mandrel & Spinning

旋压 + 3D 打印芯模复合工艺

type:recipe · level:intermediate · material:copper · material:brass · scale:decorative-object · scale:industrial · equipment:furnace · stage:patternmaking · stage:finishing

标签：3D打印, 芯模, 复合工艺, 快速打样, 尼龙, 铝合金

小批量异形件可用 3D 打印芯模替代机加工木模/钢模：PA12 尼龙打印芯模适合 Ø≤150 mm 的冷旋（寿命约 20–50 件），表面滚花网格纹可增加与毛坯摩擦防滑；需要更长寿命时打印铝填充树脂或 SLM 铝模。芯模设计需预留 1–2° 脱模锥度与尾顶螺孔。打样周期从传统制模 1–2 周缩短到 1–2 天。

For short-run odd shapes, 3D-print the mandrel instead of machining wood or steel: a PA12 nylon mandrel suits cold spinning of Ø≤150 mm parts (20–50 pieces), with a crosshatch knurl printed on the surface to grip the blank. For longer runs print aluminum-filled resin or an SLM aluminum mandrel. Add a 1–2° draft and a tailstock screw hole; prototyping time drops from 1–2 weeks to 1–2 days. ---