2023 Volume 67 Issue 3 Pages 143-149
As files are hand tools, the cutting parameters, such as cutting force and tool wear, are not clear. To clarify the cutting performance of files, we developed a file performance tester based on a shaper with a link mechanism, and determined the specific cutting force, a basic cutting parameter, with reference to the multi-edge cutting process of broaching. The results showed that as the number of cutting strokes increased, the work piece removal length and cutting force decreased, with increases in specific cutting force. The flank wear length increased with increasing the number of cutting strokes, confirming that the cutting performance decreased with wear of the file cutting edge, increasing the specific cutting force.
