What about tool wear during 3D modeling?

Use wear-resistant knives. Japanese ball knives have knives specially designed for this process, such as: Mitsubishi VF series, Hitachi TH series, OSG WXS series. If the margin is not sentimental, choose the four-edged (ball end mill). This series of Japanese-style products are basically over-hearted, so don't worry about tool wear caused by tool chip removal. If this is not enough, please choose the CBN tool. This kind of tool is very wear-resistant. After 200M machining, the smoothness of the workpiece can be kept at Ra 1. 173, but the specification of this kind of tool is relatively small. You can refer to it