How can I prevent the cutting edges from overheating, becoming blunt or breaking off during core drilling?
Question:
How can I prevent the cutting edges from overheating, becoming blunt or breaking off during core drilling?
Answer:
Good lubrication must be ensured when drilling.
This is optimally achieved with the internal cooling of the core drill via a tank, a hand pump (order number 32132022007) or a cutting spray.
Use a commercially available drilling emulsion for the tank or hand pump.
The internal coolant supply is a gravity lubrication system that is only functional in a horizontal position (coolant tank on top).
In all other positions, the coolant must be delivered to the drilling point manually (hand pump, cutting spray).
When cooling from the outside, please note that from a certain drilling depth, only small amounts of coolant reach the cutting edges of the core drill. The coolant is always transported outwards with the chips.
Ensure that sufficient coolant reaches the cutting edges. Place the core drill gently on the material to be processed. This will prevent premature breakage or blunting of the cutting edges.
Ensure that the magnetic holding force of the machine is sufficient.
If this is not the case, there is a risk that the machine may move slightly, vibrate, wobble or shift on the material to be drilled.
Too much play in the dovetail guide of the machine. Means: Core drill has poor concentricity and is loaded on one side.