Global Catalog Metric 8-16-23 web - Flipbook - Page 108
Drilling Operations
Coolant Recommendations
Coolant works to mobilize chips away from the
cut zone, reduce the heat created during the
cutting process and minimise friction.
RECOMMENDED COOLANT PRESSURE
BY DIAMETER – psi
1600
Proper coolant application promotes greater
operating parameters, greater material removal
rates, improved surface finishes, predictable tool
life, reduced power consumption and reduced
cycle times.
PRESSURE (psi)
1400
It is important to optimise the coolant pressure
and position in order to gain the full benefits
coolant offers the cutting process.
1000
800
600
400
200
0
Pressure is important, but more importantly is
consistency of the pressure and application
onto the tool; intermittent cooling of carbide
leads to thermal stressing of the material and
the formation of “microcracks.”
3
4
6
8
10
12
DRILL DIAMETER (mm)
14
16
18
16
18
RECOMMENDED COOLANT PRESSURE
BY DIAMETER – bar
120
100
PRESSURE (bar)
Proper cleanliness and filtration of coolants is
important in order for the coolant to maintain
its beneficial properties, and also to avoid a
reduction in coolant pressure or the possibility
of clogging the coolant channels in coolant
through drills.
1200
80
60
40
20
0
LARGE TIP – LOW VELOCITY
NO COVERAGE AT MAXIMUM DEPTH
3
4
6
8
10
12
DRILL DIAMETER (mm)
14
SMALL TIP – HIGH VELOCITY
COMPLETE COVERAGE
Reducing the nozzle size helps maximise the cooling benefits of the unique double margin design on the Hi-PerCarb drill by increasing
velocity. Aim the nozzles in line with the secondary flute located between the two margins as well as the flute for best results.
108
DRILLS
https://kyocera-sgstool.co.uk/
