Laser-Engraved Texture on Metal Masters
激光雕刻金属母模纹理
标签：激光雕刻, 母模, 纹理阵列, 淬火钢
20–50 W 纤维激光可在淬火钢或黄铜母模上直接刻出可复制纹理：雷纹、鱼子纹等规则底纹用打标卡阵列填充（点距 0.15–0.4 mm、单点 0.05 ms），深 0.05–0.15 mm 一次成型；雕后以 400–800 目油石抛平峰顶、保留谷底线。钢模可直接压蜡压树脂，寿命数千次，远优于硅胶翻模的 25–30 次。黄铜导热快易留氧化色，雕后需 10% 硫酸洗 5 min 恢复基色；深于 0.15 mm 的纹路分两遍雕刻防熔渣。
A 20–50 W fibre laser engraves reproducible textures directly into hardened steel or brass masters: regular grounds like thunder-scroll or fish-roe patterns are filled as array marks (0.15–0.4 mm pitch, 0.05 ms pulses) to 0.05–0.15 mm deep in one pass; level the peaks with 400–800 grit stones, keeping the groove floors. Steel masters press wax and resin directly for thousands of cycles—far beyond silicone's 25–30. Brass discolours fast; pickle 5 min in 10% sulfuric acid, and cut deeper textures in two passes to avoid dross.
