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Cooling Agents
An efficient cooling agent is of extreme importance. Insufficient coolant pressure and volume can result in an unsatisfactory
surface finish or tool breakage.
If possible, the size of solid particles in the coolant should not exceed 50 μm.
For the application of Multiplex tools with high speed steel or carbide inserts we recommend soluble oil as coolant applying the
standard ratio of mixture of 1 : 20.
The coolant pressure and volume are more important than the composition of the soluble oil. An efficient cooling agent is
therefore an important pre-requisite for sufficient cooling and lubrication.
16
14
12
10
8
6
4
2
bar
l/min
80
60
40
20
10 20 30 40 50 60 70 80 90 100 210
Machine and Workpiece
Only a rigid machine, spindle, workpiece and tool clamping make the application of carbide possible. Insufficient rigidity leads
to vibrations or rapid corner wear of the drill during the production of through holes when the chisel edge exits the workpiece,
resulting in reduced tool life or insert breakage.
48
44
40
36
32
28
24
20
16
12
8
4
20 40 60 80 100 120 140 160 180 200 210
435