Optimum BF20 V, Руководство по эксплуатации

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OPTIMUM
M A S C H I N E N - G E R M A N Y
Version 3.1.8 dated 2015-1-27 Page 29 Original operating instructions
BF20V US
4.8.2 Standard values for speeds with HSS – Eco – twist drilling (U.S. unit
)
1: Speed (n) in RPM
2: Feed Rate (f) in./rev.
3: Coolant: E = Emulsion; Oil = Cutting oil

The above mentioned indications are standard values. In some cases it may be
advantageous 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.
Material
Cutter Diameter (in.)
Coolant
3
0,0787 0,1181 0,1575 0,1969 0,2362 0,2756 0,3150 0,3543 0,3937
Steel, unalloyed, up
to 87,000 PSI
n
1 5.600 3.550 2.800 2.240 2.000 1.600 1.400 1.250 1.120 E
f
2 0,0016 0,0025 0,0031 0,0039 0,0049 0,0049 0,0063 0,0063 0,0079
Structural steel, alloyed,
quenched and subse-
drawn, up to 130,000 PSI
n
3.150 2.000 1.600 1.250 1.000 900 800 710 630
E/Oil
f
0,0013 0,002 0,0025 0,0031 0,0039 0,0039 0,0049 0,0049 0,0063
Structural steel, alloyed,
quenched and subse-
drawn, up to 174,000 PSI
n
2.500 1.600 1.250 1.000 800 710 630 560 500
Oil
f
0,0013 0,0016 0,0020 0,0025 0,0031 0,0039 0,0039 0,0049 0,0049
Stainless steels up to
130,000 PSI e.g.,
X5CrNi18 10
n
2.000 1.250 1.000 800 630 500 500 400 400
Oil
f
0,0013 0,0020 0,0025 0,0031 0,0039 0,0039 0,0049 0,0049 0,0063