FOSHAN GAOMING JIALESHI DECORATIVE MATERIAL CO.,LTD , https://www.jlsbuildingmaterial.com In machining, parts with a spherical shape are often encountered, and some spherical parts have higher precision requirements, and are usually processed by a forming knife and measured by a template. Not only is the efficiency low, but also because the forming tool is not easy to sharpen, the cutting edge contact surface is large during cutting, and the surface is prone to corrugation, and the precision is difficult to ensure. To this end, introduce a kind of