Technology

Die-cut & Punch Model
HAP40 / 65HRC
MRBH230 / Long Neck Ball End Mill

Work size 30x20(mm)(cutting depth: 8mm)

Material : HAP40 65HRC
Cutting time: 9hr 42min.

MUGEN-COATING PREMIUM for hardened steels and unique radius design realize rigidity and shearing ability on high hard metal cutting.
Improve accuracy and surface roughness on side wall by original back-taper design for peripheral flute.

Tool

MRBH230
R1×4 · R1×8


•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 Cutting die part Punch die part
Roughing Side finishing Bottom surface finishing Roughing Side finishing Bottom surface finishing Radius Finishing
Tool MRBH230 R1×4 MRBH230 R1x8
Spindle speed
(min-1)
20,000 20,000 20,000 12,000 12,000 12,000 12,000
Feed
(mm/min)
2,000 1,200 1,200 900 550 550 550
Depth of cut
ap×ae(mm)
0.15×0.3 0.02×0.03 0.01x0.02 0.1×0.02 0.02x0.03 0.01x0.02 0.01x0.2
Coolant Oil mist
Cutting time 45min 2hr45min47min 5hr25min

Comment

Realized high quality surface roughness on cutting die face Rz0.744μm, punch die face Rz0.712μm and punch die side Rz0.699μm even after long time direct cutting for HAP40 65HRC.