Products

CBN End Mill

The most suitable end mills for long-hour finishing process of high hard materials. End mills made of CBN sintered compact with hardness one rank below of diamonds as a raw material for tools.


What is CBN Sintered Alloy?

ダイヤモンド 硬さ:Hv8,000〜10,000、CBN焼結体 硬さ:約Hv4,500、超硬合金 硬さ:Hv1,300〜1,800、ハイス 硬さ:Hv800〜900

CBN (Cubic Boron Nitride) sintered alloy is second hardest material next to diamond as left figure, 3 times harder than Tungsten carbide, moreover having features of strong heat-resistance and high thermal conductivity. However, less tough characteristic of CBN often causes chipping of tool edge easily. Accordingly, CBN is recommended for finishing of hard materials with less cutting load on the tool edge, which guarantees extra-long tool life.

Rich Lineup, Suitable to Various Machining

End mills of the next generation realized by developing a unique tool shape utilizing the characteristics of the CBN sintered compact with high hardness and thermal resistance and establishing grinding technology. Long life and stable finished surface are provided in finishing process of high hard materials.

Introduction of new size additional product


Released in June ,2021

CBN Super High Precision Radius End Mill
SHPR400




Tool profile: Radius ( 4 Fluts )

Material: Cubic Boron Nitride

Size: φ0.1~3 Total 109 sizes


Features:
・New tool design has been developed to reduce the cutting resistance
 and upgrade the finishing accuracy!
・Achieved higher efficient machining and more stable tool life in micro machining!
・The shank diameter accuracy is 2μm (-0.001 ~ -0.003).
・Supports shrink fit holders and realizes high precision machining performance.

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●Machining accuracy is determined by tool.





●New tool design for reducing cutting resistance


Succeeded in reducing cutting resistance. Upgraded machining accuracy!




●Comparison to other brand



Optimized cutting edge shape enables micro finishing
for a long time and high accuracy machining

STAVAX 52HRC Micro needle

Work size:15 × 15 mm
    (Depth 1.2 mm)

Material:STAVAX (52HRC)

Coolant:Oil mist

Total machining time:24hr 53min







Measuring position Needle tip diameter
Target [mm] Actual [mm]
A 0.010 0.009
B 0.013
C 0.013
D 0.013

Measuring machine: Nikon

Process Roughing① Roughing② Roughing③ Roughing④ Finishing
Tool MHRH430R
Ø2×R0.02×4
SSPB200
R0.2×1.2
SSPB200
R0.2×1.2
SSR200
Ø0.3×R0.02×1.5
SHPR400
Ø0.3×R0.02×1.5
Spindle Speed
[min-1]
20,000 40,000 40,000 40,000 40,000
Feed[mm/min] 1,000 750 500 500 25~300
Depth of cut
ap×ae [mm]
0.01×0.5 ap 0.005 ap 0.005 ap 0.003 0.003×0.04
Stock
[mm]
0.01 0.01 0.05 0.04 -
Time 8min 3hr 19min 2hr 45min 3hr 51min 14hr 50min

※Using 2pcs for finishing.

Leaflet

CBN END MILL SERIES Vol.3

CBN_2004.pdf(2.3MB)

※The information of 'SHPR400 Series' is released
as of April 2020.
For the newest additional sizes,
please check the one below.

CBN Super High Precision Radius End Mill
SHPR400 New Size Addition

SHPR400_2106.pdf(0.5MB)



Work Sample Data


SHPR400 Cutting example of micro slotting


Work size : 30×10mm
Profile : Width 0.1mm / Length 2.5mm / Depth 0.3mm
Use only 1 end mill to finish 100 slots.

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SSPB220 Bottleneck Model


Work size 30×30×30mm
Cutting time: 3hr 25min.

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SSPB220 Hexalobular Punch Model


Work size : Φ25 (Depth 30mm)
Cutting time: 4hr 36min

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SSPBL220 Hot Forging Mold


Work size : 50x50x18.2mm
Cutting time: 4hr (only finishing)

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SSPBTN220 Deep Milling Model


Work size : 30x30mm (cutting depth 15mm)
Cutting time: 18hr 9min.

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SFB200 ELMAX Reflector Model


Work size: 20×20mm
Cutting time: 19 hr 10 min

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SSR200 Precise Milling Model


Work size: 30×30(mm)
Cutting time: 7 hr 57 min

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