Каталог Iscar вращающийся инструмент 2017 - страница 594

Troubleshooting

Problem

Chipping on the chisel edge

Chipping on the cutting edges / built-up edge

Excessive wear on the cutting corners

Chipping on the lands

Hole diameter out of tolerance

Hole not straight

Cause

• Poor clamping of the chuck
• Unsuitable cutting conditions
• Chisel runout
• Workpiece movement
• Poor clamping of the chuck
• Unsuitable cutting conditions
• Insufficient coolant
• Rough application
• Insufficient coolant
• Large runout
• Unsuitable cutting conditions
• Rough application
• Poor clamping of the chuck
• Workpiece movement
• Insufficient coolant
• Wrong drill
• Unsuitable cutting conditions
• Unsuitable cutting conditions
• Poor clamping of the chuck
• Large runout
• Worn out center point (chisel)
• Insufficient chip evacuation
• Poor clamping of the chuck
• Workpiece rigidity
• Worn out drill center point (chisel)
• Unsuitable cutting conditions

Solution

• Check the clamping. Use hydraulic clamping chuck, maxin power chuck or a shrink system.
• Decrease feed, increase coolant pressure.
• Check or replace the clamping adaptation.
• Increase workpiece chucking force.
• Check the clamping. Use hydraulic clamping chuck, maxin power chuck or a shrink system.
• Increase cutting speed, reduce feed rate.
• Check cooling lubricant. Increase coolant pressure. In the case of external coolant supply, improve jet direction and add cooling jets.
• Reduce feed rate by 30-50% during entry and exiting.
• Check cooling lubricant. Increase coolant pressure. In the case of external coolant supply, improve jet direction and add coolant jets.
• Check if the runout is within 0.02 mm T.I.R. (radial & axial)
• Reduce cutting speed, increase feed.
• Reduce feed rate by 30-50% during entry and exit.
• Check the clamping. Use hydraulic clamping chuck, maxin power chuck or a shrink system.
• Increase workpiece chucking force.
• Check cooling lubricant. Increase coolant pressure. In the case of external coolant supply, improve jet direction and add coolant jets.
• Check drill type, drilling depth, cooling system and workpiece material.
• Increase feed. When spot drilling, reduce feed.
• If hole size is too large, increase cutting speed or reduce feed. If hole size is too small, reduce cutting speed or increase feed.
• Check the clamping. Use hydraulic clamping chuck, maxin power chuck or a shrink system.
• Make sure that the drill’s runout is within 0.02 mm (radial & axial).
• Regrind cutting edge or replace the drill.
• Use pecking cycle.
• Check the clamping. Use hydraulic clamping chuck, maxin power chuck or a shrink system.
• Increase workpiece chucking force.
• Regrind cutting edge.
• Increase feed. When spot drilling, reduce feed.