Chip Packing
- Use spiral point or spiral fluted taps.
- Reduce number of flutes to provide extra chip room.
- Use larger hole size.
- If tapping a blind hole, allow deeper holes where applicable or shorten the thread length of the parts.
- Use proper lubricant.
Galling
- Apply proper surface treatment such as steam oxide or TiN.
- Use proper cutting lubricant.
- Reduce tapping speed.
- Use proper cutting angle in accordance with material being tapped.
- Use larger hole size.
Incorrect Tap
- Use proper GH limits of taps.
- Use longer chamfered taps
Operating Conditions
- Apply proper tapping speed.
- Correct alignment of tap and drilled hole.
- Use proper tapping speed to avoid torn or rough threads.
- Use lead screw tapper.
- Use proper tapping machine with suitable power.
- Avoid misalignment of the tap and drilled hole from loose spindle or worn holder.
Tool Conditions
- Obtain proper indexing angle for the flutes at the cutting edge.
- Grind proper cutting angle and chamfer angle.
- Avoid too narrow a land width.
- Remove burrs from regrinding.
