MOLD FINISH MASTER SUMIBORON Ballnose Endmills for Copper Electrode Machining BNBC Type
Copper Alloy
Ballnose
Flutes
Side Milling
Face Milling
R-Grooving
Profiling
Fig 1
RE ±0.005
APMX
15˚
LU
LF
I
Body
Dimensions ( mm )
Radius RE
Dia. DC
Cutting Edge Length APMX
Neck Length LU
Overall Length LF
Head Dia. DN
Shank Dia. DMM
Cat. No.
Fig
BNBC2R010-0034 BNBC2R010-0104 BNBC2R020-0054 BNBC2R020-0204 BNBC2R030-0104 BNBC2R030-0304 BNBC2R050-0304
1 1 1 1 1 1 1
0.1
0.2
0.2
0.3
50
0.17
4
0.1
0.2
0.2
1.0
50
0.17
4
0.2
0.4
0.3
0.5
50
0.37
4
0.2
0.4
0.3
2.0
50
0.37
4
0.3
0.6
0.4
1.0
50
0.57
4
0.3
0.6
0.4
3.0
50
0.57
4
0.5
1.0
0.6
3.0
50
0.97
4
Grade: BN700
Identification Code
Number of Teeth BNBC 2 R030 - 010 4 Ballnose Radius Neck Length Shank Dia. Series Code
Recommended Cutting Conditions 1. Use a machine with high rigidity for stable cutting. 2. Non-water soluble cutting oil is recommended. Supply as a mist or external coolant. Take fire prevention precautions to avoid fire hazards caused by sparks igniting during machining or tool breakage. 3. Shorten overhang as much as possible. 4. Adjust cutting conditions according to actual conditions as machine rigidity and other conditions may vary. 5. Depths of cut shown in the table of conditions are maximum depths. Adjust the actual depth of cut to the desired machined surface roughness.
Side Milling
p
f
Work Material
Copper Alloy
Cutting Conditions
Standard depth of cut (mm)
Spindle Speed (min -1 ) 20,000 -50,000 20,000 -50,000 20,000 -50,000 20,000 -50,000
Feed Rate (mm/min)
Cat. No.
a
p
p
f
BNBC2R010-0034
350 0.01 0.02
BNBC2R010-0104
350 0.007 0.015
BNBC2R020-0054
800 0.025 0.05 700 0.02 0.03
BNBC2R020-0204
BNBC2R030-0104
1,400 1,200
0.05 0.15
BNBC2R030-0304
0.04 0.1
BNBC2R050-0304
2,200
0.15 0.35
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