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> Products > Milling > End Mills

TCBN Series

CBN End Mill for High-hardness Steels(45-65HRC)

Features

Features

●Maching high hardness materials HRC45 to HRC65 into finish process for long times.

●Good cutting ability due to negative rake angle.

●High speed cutting with 20,000rpm and over 20,000rpm of tool and supplying air mist recommended.

Shape type

Shape type

TCBN-CR Corner radius

Diameter:D0.4-D3mm
Nunber of flutes: 2/3/4

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TCBN-B Ball nose

Diameter:D0.4-D6mm
Nunber of flutes: 2

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Recommended Cutting Conditions

TCBN-B CBN Ball Nose 2F

Workpiece Materia			Hardness
Hardened Steel			HRC45-65
Radius(mm）	DIA.（mm）	H	RPM(rev/min）	FEED(mm/min）	ap（mm）	ae（mm）
0.20	0.4	1.0	50000	1200	0.005	0.005
0.25	0.5	1.0	50000	1500	0.005	0.005
0.30	0.6	1.2	50000	1200	0.005	0.005
0.40	0.8	1.6	50000	2000	0.005	0.005
0.50	1.0	2.0	50000	3000	0.010	0.010
0.75	1.5	3.5	50000	3000	0.010	0.010
1.00	2.0	4.0	40000	3200	0.010	0.010
1.50	3.0	10.0	21200	1680	0.006	0.010

TCBN-CR CBN Corner Radius 2F/3F/4F

Workpiece materia		Hardness
Hardened Steel		HRC45-65
DIA.（mm）	H	RPM(rev/min）	FEED(mm/min）	ap（mm）	ae（mm）
0.4	1.0	50000	600	0.05	0.005
0.5	1.5	50000	700	0.10	0.010
0.6	2.0	50000	480	0.10	0.010
0.8	2.5	50000	800	0.10	0.010
1.0	3.5	34400	800	0.20	0.008
1.5	4.5	30000	1000	0.40	0.020
2.0	6.0	22000	900	0.60	0.030
3.0	10.0	12000	560	0.80	0.018

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