Technology

MRBSH330 Die cutter for Insulation sheet

Realize high efficient machining on micro shape machined by small diameter end mill



Work material : HAP40(64HRC)
Work size : 50×50mm
Depth of cut : 20mm
Coolant : Oil Mist
Total machining time : 6hr52min

Tool

 

MRBSH330



●High-efficiency 3-flute ball end mill optimizes a shape of central edge and enables high    depth of cutting.
●Even hardened steel of 45 to 70HRC can be machining with long tool life and high    efficiency.
●R accuracy is ±0.005mm (R accuracy is based on a half value of actual diameter).
●Shank diameter tolerance , high accuracy type, is - 0.001 ~ - 0.003.


Cutting condition

        
Finishing area ① Finishing area ②
                                                               
Process Roughing① Finishing① Roughing②Roughing③ Semi-finishing Finishing②
ToolMRBSH330
R1×3
MRBSH330
R0.5×2
MRBSH330
R0.3×1
MRBSH330
R0.3×1
Spindle speed
(min-1)
20,00025,000
Feed
(mm/min)
3,0001,5002,100 1,080 800
Depth of cut
ap×ae(mm)
0.23 × 0.3 ae 0.05 0.02 × 0.1 0.015 × 0.05 Z pitch 0.02 Side:Z pitch
0.003~0.01

Bottom:ae 0.05
Stock
(mm)
0.05 0 0.03 0.0150.0050
Time 37min33min1hr26min42min39min 2hr55min

Result

【Accuracy】


Unit[mm]

Width Target 0.255
Actual 0.260 0.258 0.259 0.260
Error +0.005 +0.003 +0.004 +0.005
Edge R 0.0018 0.0027 0.0025 0.0025


【Surface roughness】


           

Unit [μm]

Ra 0.070 0.070 0.303 0.328
Ra 0.387 0.355 1.719 1.699