Drilling teory by Sandvik

Drilling Theory

The drilling process

Four common drilling methods

The most common holes

Maximum hole depth

Drilling Theory

Cutting speeds for solid and brazed carbide drills

Definitions of Terms

Definitions of Terms

Effects of cutting speed - Vc (ft/min) (m/min)

Feed Rate

Approximate calculation of power consumption

Accurate calculation of power consumption

Calculation of torque and feed force

Tool selection procedure

1. Component and the workpiece material

2. Important machine considerations

3. Choice of drilling tools

4. How to apply

5. Trouble shooting

Drilling tools

Choice of drilling tools

Other methods

Diameter and hole depth

Indexable insert drills

How to apply

Rotating drill

Non-rotating drill

Deflection of turret

Brazed and solid carbide drills

Hole quality and tolerance

Troubleshooting

Troubleshooting

Troubleshooting

Troubleshooting

Tool wear - Indexable insert drill

Tool wear - Indexable insert drill

Tool wear - Indexable insert drill

Thank You