Technology

Bottleneck Model
ELMAX / 59HRC
SSPB220 / CBN Super Spiral Ball End Mill

Work size 30×30×30mm

Material : ELMAX 59HRC
Cutting time: 3hr 25min.

SSPB220 realized high quality surface by spiral ball shape to improve sharpness of cutting edge, and by back-taper shape which reduce the influence of vibration.

Tool

SSPB220


•Adopted spiral ball shape to improve sharpness of cutting edge.
•Adopted cutting edge shape to improve the chipping resistance of cutting edge.
•When peripheral cutting edge makes contact with cutting surface, vibration occurs by an increase in cutting resistance and it affects tool life and cutting surface quality. The influence can be reduced by adoption of the strong back taper shape.
•Enlarged standard tool size up to R3 to extend application range.

For product details For size variation

MRBH230


•MUGEN-COATING PREMIUM for hardened steels and unique new design excel in chipping prevention and resolves chattering to realize excellent finished surface.
•Applicable for hardened steels up to 68HRC.
•Total 190 sizes!
For product details For size variation

Cutting Condition

Cutting process Roughing Semi-finishing Finishing(Slot) Finishing(Curving Face)
Tool MRBH230
R1×6
MRBH230
R0.5×5
SSPB220
R0.5×2.5
SSPB220
R1×5
Spindle speed
(min-1)
25,000 35,000 40,000 40,000
Feed
(mm/min)
2,000 1,600 1,500 1,500
Depth of Cut
ap×ae(mm)
0.2×0.3 0.04×0.1 0.01×0.007 0.01×0.005
Coolant Oil mist
Cutting time 45min 45min 35min 1hr20min

Comment

Difference in dimension is maximum 0.003mm and surface roughness is less than Rz0.55μm. Realized shiny and high quality surface by using SSPB220 for finishing process.