Technology

DHR237R Tough-Pitch Copper
3° curved surface sample Comparison of cutting surface

Work size 50×50(mm)
(Cutting Depth 12mm)

Material: Tough-Pitch Copper
Total cutting time: 11hr 16min

One piece includes 4 shapes, total two pieces

Unit: mm

Tool

DHR237R
Φ3×R0.2×12


●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

Process Roughing Semi - Finishing
(Curved Surface R120)
Finishing
Slotting Contour line Scanning line Scanning line Contour line
Tool DHR237R Φ3×R0.2×12
Machined by one end mill from roughing through finishing.
Spindle speed
(min-1)
14,000
Feed
(mm/min)
1,500 3,000 1,000
Depth of cut
(mm)
ap0.06 ap0.12
ae1.5
ae0.05 ae0.03 ap0.03
Stock
(mm)
0.03 -
Coolant Water-insoluble fluid
Cutting time
(1 piece)
1hr 6min 4hr 32min

Result

Surface roughness

Measurement position.

1st shape

8th shape

DHR237R can realize no plucking stable surface.

Tool wear

Observant point

DHR237R inhibits wearing progress to achieve continuing stable cutting surface.