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
R0.5×2.5 · R1×5
•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.
MRBH230
R1×6 · R0.5×5
•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!
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.