The failure mode of the drill bit [2]

There are several failure mode of the drill bit. PURROS summarizes the following situations:

Edge wear

The failure mode of the drill bit: Edge wear
Cause
1. Rigid and not tight enough
2. Beating too big
3. Inverted cone is too small
4. The coolant oil is not enough

The back of the tool has stripes

The failure mode of the drill bit: The back of the tool has stripes

Cause
1. Rigid and not tight enough
2. Beating too big
3. Intermittent cutting
4. Waste grinder piece
(Add cooling fluid)

 

Chisel edge wear

The failure mode of the drill bit: Chisel edge wear

Cause
The cutting speed is too slow.
Feed is too fast.
The angle of the cutting edge is too big.

 

The connection point crack on

The failure mode of the drill bit: The connection point crack on

Cause
The lip relief angle is too small
Cutting edge is too wide
Choose the wrong cutting tool

 

The nose of tool has plastic deformation

The failure mode of the drill bit: The nose of tool has plastic deformation

Cause
1. Cutting speed is too fast
2. Have not enough cooling
3. Chamfering error or no

 

Related articles:

The failure mode of the drill bit [1]

The failure mode of the drill bit [2]

Posted in Technology and tagged , .

Leave a Reply

Your email address will not be published. Required fields are marked *