Technology

DHR237 Copper Tungsten multi profile electrode

Work size: 10×30(mm)

Material: Copper Tungsten

Tool

DHR237
Φ0.3×1 Φ0.3×2 Φ0.5×1.5 Φ0.8×3


●Long neck end mill specialized for machining copper alloy.
●Helix angle 【37.5°】 degrees to achieve both sharpness and finished surface quality that prevents scratches on cutting surface.
●High quality and stable milling performance with long tool life by optimized design and DLC coating.
●Machining copper tungsten electrodes is also effective.


Cutting Conditions

Micro slit shape

Process Roughing(Slotting) Finishing(Side milling)
Tool DHR237 Φ0.3×1 DHR237 Φ0.3×2
Spindle speed
(min-1)
25,000
Feed
(mm/min)
200
100※
150
Depth of cut
ap(mm)
0.01
0.005※
ap0.1×ae0.005
Stock
(mm)
0.005 -
Coolant Water-insoluble fluid
Cutting time 42min 12min
Work size 6.5×8(mm) Cutting depth1.5mm

※Guide part machining from the upper surface to -0.05mm.

Fine prism profile

Process Roughing Finishing
Slotting Side milling
Tool DHR237 Φ0.5×1.5
Spindle speed
(min-1)
26,000
Feed
(mm/min)
500 550
Depth of cut
ap×ae(mm)
ap0.07 0.3×0.02 0.3×0.005
Stock
(mm)
0.05 0.005 -
Coolant Water-insoluble fluid
Cutting time 13min
Work size 6.5×8(mm) Cutting depth1.5mm

Cylindrical stage profile

Process Roughing Finishing
Φ1.8Helical milling Side milling
Tool DHR237 Φ0.8×3
Spindle speed
(min-1)
12,000
Feed
(mm/min)
500
Depth of cut
ap×ae(mm)
ap0.07
(Helical R=0.25)
0.5×0.02 0.5×0.005
Stock
(mm)
0.25 0.005 -
Coolant Water-insoluble fluid
Cutting time 33min
Work size 6.5×8(mm) Cutting depth 3mm

Result

DHR237 can achieve fine profile with stable accuracy even in machining tough material of Copper Tungsten.

Micro slit shape Measurement result

Side

Roughness Ra0.101µm
Deflection within 0.001mm


Slot

Target 0.310mm
Actual 0.307mm

Fine prism profile Measurement result

Side

Roughness Ra0.197µm
Deflection within 0.001mm



Slot width   
Part APart B
Target 0.600mm 0.600mm
Actual 0.601mm 0.599mm

Cylindrical stage profile Measurement result

   

Roughness

Point α Point β
Ra0.182µm Ra0.176µm



Center hole diameter

Target 1.800mm
Actual 1.797mm

Related Movie

Long neck end mill for copper electrode (DHR237)