Solid Carbide Drills
Troubleshooting Guide
source
• Check clamping accuracy and torque transmission. Use hydraulic
clamping chuck or high-precision chucking system.
workpiece movement • Stabilise workpiece chucking and check stability of machine tool.
wrong drill
• Check cooling lubricant. In the case of internal coolant supply,
increase coolant pressure. In the case of external coolant supply,
adjust positioning of coolant jet. Cool from both sides.
cutting conditions • Check cutting values, and possibly reduce feed.
workpiece movement
wrong drill
widia.com
• Check drill type, drilling depth, cooling system,
and workpiece material.
insuffi cient coolant
clamping chuck
splintering on the cutting corners
solution
clamping chuck
• Check torque transmission. Use hydraulic clamping chuck
or high-precision chucking system.
• Stabilise workpiece chucking and check stability of machine tool.
• Check drill type, drilling depth, cooling system, and workpiece material.
Possibly use longer drill.
insuffi cient coolant • Check cooling lubricant. In the case of internal coolant supply,
increase coolant pressure. In the case of external coolant supply,
adjust positioning of coolant jet. Cool from both sides.
cutting conditions • Check cutting values, and possibly reduce feed.
T149
problem
drill breakage