Standard Values For Speeds With Hss - Eco - Twist Drilling - Optimum OPTImill BF 46TC Betriebsanleitung

4.20.2 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
High temperatures are generated at the tip of the tool by the occurring friction heat. The tool
should be cooled during the milling process. Cooling the tool with a suitable cooling lubricant
ensures better working results and a longer edge life of the cutting tool.
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 1.1.3 dated 2014-4-8
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
Original operating instructions
OPTIMUM
M A S C H I N E N - G E R M A N Y
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
BF46V | BF46TC
Page 95
GB