514 Каталог ISCAR 2017 Вращающийся режущий инструмент и инструментальная оснастка Стр.510

Каталог ISCAR 2017 Ротационный инструмент Стр. 510 0514 ENG Lab2u

INDEXABLE DRILLS USER GUIDE chamIQ>r/ll 700 LINE Troubleshooting Deviation of Hole Tolerance 1. Check the runout and make sure it is within 0.03 mm T.I.R. (radial and axial cutting points). 2. Reduce feed rate. 3. Check the chisel point runout and make sure it is within 0.03 mm T.I.R. 4. Worn cutting edge. Replace head. 5. Increase workpiece chucking force. 6. Increase internal coolant pressure. Surface Finish Too Rough 1. Check the runout and make sure it is within 0.03 mm T.I.R. (radial and axial). 2. Adjust the feed for improved chip formation. 3. In case of chip jamming - increase the coolant flow and/or reduce the cutting speed. 4. Increase the coolant pressure. 5. Check the chisel point runout and make sure it is within 0.03 mm T.I.R. 6. Use pecking cycle. 7. Replace the drilling head Hole Not Straight Drill a pre-hole for centering (check recommendations for pre-hole operation). Increase coolant pressure; improve jet direction in case of external coolant supply. Increase the feed. Inaccurate Hole Position 1. Check the runout and make sure it is within 0.03 mm T.I.R. (radial and axial). 2. Check the stability of the machine spindle, tool and workpiece clamping rigidity. 3. When drilling rough, hard or sloped surfaces (up to 7°), reduce the feed rate by 50%-70% when entering. 4. Drill a pre-hole with a 140° point angle for centering. 5. Check the chisel point runout and make sure it is within 0.03 mm T.I.R. Burrs on Exit 1. Reduce the feed rate by 50%-70% when exiting. 2. Replace the worn head. t0 > D nominal + 0.15mm t D nominal 510 ISCAR