Общий каталог Dijet 2018 - страница 555

Tooling by DIJET Troubleshooting APPLICATIONS Drilling PROBLEM CAUSE RECOMMENDED ACTION Over Size or Out-of-Round • tool • Reduce drill overhang • Increase lead angle • speeds & feeds • Increase the cutting speed • Reduce the feed rate • others • Use a machine with sufficient horsepower • Tighten work piece clamping Poor Surface Finish • speeds & feeds • Maintain constant feed rate • Increase the cutting speed • Reduce the feed rate • Use low feed rate when starting drill • others • Use a machine with sufficient horsepower • Tighten work piece clamping Galling on Drill Body • tool • Reduce drill overhang • speeds & feeds • Reduce the cutting speed • Increase the feed rate • others • Use a machine with sufficient horsepower • Tighten work piece clamping Vibration • tool • Use light hone • Reduce drill overhang • speeds & feeds • Maintain constant feed rate • others • Use a machine with sufficient horsepower • Tighten work piece clamping F011