Standard Values For Speeds With Hss - Eco - Twist Drilling; Coolant Equipment - Optimum Opti mill MB 4P Betriebsanleitung

4.10.2 Standard values for speeds with HSS – Eco – twist drilling
Material
Steel, unalloyed,
2
up to 600 N/mm
Structural steel, alloyed,
quenched and subsequently
2
drawn, up to 900N/mm
Structural steel, alloyed,
quenched and subsequently
2
drawn, up to 1200 N/mm
Stainless steels up to 900 N/
2
mm
e.g. X5CrNi18 10
The above mentioned indications are standard values. In some cases it may be advanta-

geous to increase or decrease these values.
When drilling a cooling or lubricating agent should be used.

For stainless materials (e.g. VA – or NIRO steel sheets) do not center as the material would

compact and the drill bit will become rapidly blunt.
The workpieces need to be tensed in flexibly and stably (vice, screw clamp).

INFORMATION
Friction during the cutting process causes high temperatures at the cutting edge of the tool. The
tool should be cooled during the milling process. Cooling the tool with a suitable cooling lubri-
cant ensures better working results and a longer edge life of the cutting tool.
4.11

Coolant equipment

WARNING!
Ejection and overflowing of coolants and lubricants. Make sure you do not get the
cooling lubricants on the floor. Spilled on the floor cooling agents must be removed
immediately.
INFORMATION
Use a water-soluble and non-pollutant emulsion as a cooling agent.This can be acquired from
authorised distributors.
Make sure that the cooling agent is properly retrieved. Respect the environment when dispos-
ing of any lubricants and coolants. Follow the manufacturer's disposal instructions.
Version 1.1.8 - 2021-7-29
Drill diameter
2 3 4 5
1)
n 5600 3550 2800 2240
2)
f 0.04 0.063 0.08 0.10
n 3150 2000 1600 1250
f 0.032 0.05 0.063 0.08
n 2500 1600 1250 1000
f" 0.032 0.04 0.05 0.063
n 2000 1250 1000 800
f 0.032 0.05 0.063 0.08
1): Speed [ n ] in r/min
2): Feed [ f ] in mm/r
3): Cooling: E = Emulsion; oil = cutting oil
Translation of original instructions
6 7 8 9
2000 1600 1400 1250 1120
0.125 0.125 0.16 0.16 0.20
1000 900 800 710 630
0.10 0.10 0.125 0.125 0.16
800 710 630 560 500
0.08 0.10 0.10 0.125 0.125
630 500 500 400 400
0.10 0.10 0.125 0.125 0.16
Cooling
3)
10
E
E/oil
Oil
Oil
MB4P ǀ MB4PV EN
95