| 摘要 |
1. A method for manufacturing a spark wheel for a pyrophoric lighter, wherein for producing a serrated circumferential surface (8) of said spark wheel the circumferential surface is deformed by tool-cuttings, characterized in that said circumferential surface (8) is deformed by a tool (5, 10) at locations which are mutually offset with respect to the axial direction, said tool having a corrugation-ground working surface (7, 12). |
