25
1
1
5
0
10
15
MMS
VB: 0.21mm
Drill (Grade)
MMS0610X3DB (DP7020)
Work Material
Inconel
®
718
Cutting Speed
vc14 m/min
Feed
f0.06 mm/rev
Hole Depth
15 mm
Coolant
Emulsion
Drilling
ENGINE
Work Material [Ni-based Superalloy]
Key Point on Machining
Cooling of the cutting edge is a key factor when drilling Ni-based alloys.
It is possible to extend tool life greatly by using a solid carbide drill that employs TRI-Cooling
through coolant hole technology with a high pressure coolant supply.
Application Example
15 times longer tool life is achieved when using high pressure internal coolant and the new
TRI-cooling technology.
MMS: Internal coolant
(7 MPa)
MWS: Internal coolant
(1.5 MPa)
MWE: External coolant
“TRI-Cooling Technology”
Excellent cooling effect
Tool life (hole)
