CNC-assisted Repoussé
数控浮雕机（CNC）辅助起凸
标签：CNC浮雕, 数控, 粗加工, 手工精修
CNC 雕刻机用球头刀（R2–R6 mm）从背面粗铣浮雕背面型腔，去除 60–70% 余量并留 0.5–1 mm 供手工从正面錾塑细节，深浮雕工时缩短 50% 以上。铣削参数：主轴 12000–18000 rpm、进给 800–1500 mm/min、每层切深 ≤0.4 mm 防翘曲。手工阶段专注刀痕肌理与微凸细部，实现「机器出大形、手工出神」的分工。反面铣削夹持用真空吸附台最稳。
Rough the back cavity on a CNC router (ball nose R2–R6 mm, 12000–18000 rpm, 800–1500 mm/min, ≤0.4 mm/layer) removing 60–70% of stock while leaving 0.5–1 mm for hand chasing detail from the front—cutting deep-relief bench time by 50%+. Hold sheets on a vacuum table. The hand stage then focuses on tool marks and micro-detail: machine for form, hand for spirit. ---