Technology

DHR237R Copper Tungsten
Press Mould Electrode Model

Work size: 30×35mm
(Cutting depth 1 mm)

Material: Copper Tungsten
Cutting time: 2hr 5min

Tool

DHR237R
φ1×R0.1×3

*Used total 2 tools for machining, one was for roughing and the other was for semi-finishing and finishing.



●Long neck corner radius end mill specialized for machining copper electrode.
●37.5º helix angle provides both sharpness shearing ability and finishing surface quality, combining the most suitable cutting edge design realizes the higher quality of finishing 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 Condition

Roughing ・ Semi-finishing

Cutting process Roughing Semi-finishing
Contour line Slotting Plane Side
Tool DHR237R Φ1×R0.1×3
Spindle speed
(min-1)
23,000
Feed
(mm/min)
2,200 1,000 2,200
Depth of cut
(mm)
ap0.054
ae0.55
ap0.027 ae0.05 ap0.03
Stock
(mm)
0.05 0.03
Coolant Water soluble fluid
Cutting time 23min 30min
  

Finishing

Cutting process Finishing
Plane Side
Tool DHR237R Φ1×R0.1×3
Spindle speed
(min-1)
23,000
Feed
(mm/min)
1,100
Depth of cut
(mm)
ae0.05 ap0.02
Coolant Water soluble fluid
Cutting time 1hr 12min

Result

Cutting shape details


           

Cutting Accuracy

Measurement position
【-0.2mm from the top】

【-0.8mm from the top】
Target 1.202mm 1.307mm
Shape 1 1.203mm
Error :0.001mm
1.311mm
Error :0.004mm
Shape 4 1.207mm
Error :0.005mm
1.314mm
Error :0.007mm

  

Surface roughness

(μm)

 
Shape1 Shape4
Side Ra:0.159
Rz:1.403
Ra:0.139
Rz:1.018
Bottom Ra:0.055
Rz:0.516



Tool wear

Even through the long time copper tungsten machining, DHR237R can keep stable accuracy and surface roughness.

Video

Long neck corner radius end mill for copper electrode (DHR237R)