Page 111 - Aluminum_Machining_catalog_2023
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USER GUIDE
Indication of Drill Head Wear
Wear Limit Vibration Noise Drastically Increases
0.2-0.3
Power Restriction EXCHANGEABLE DRILLING HEADS
P (1) Px1.25 (2)
Drilling Limitations
0
(1) New drilling head
(2) Worn-out drilling head
Diameter Change Surface Finish Declines
Ø > D nominal + 0.15 mm
D nominal
Ø < D nominal - 0.03 mm Ra
Recommended Machining Conditions for ICN Inserts
SUMOCHAM
Feed Vs. Drill Diameter
D=4-4.9 D=5-5.9 D=6-7.99 D=8-9.99 D=20-25.9 D=26-32.9
Mtl. No. V m/min mm/rev
21
22
23 90-155-220
24 0.04 0.10 0.12 0.20 0.45 0.50
0.06
0.67
0.13
0.15
0.27
0.57
25 80-120-160 0.08 0.15 0.18 0.35 0.70 0.75
26
27 90-155-220
28
Recommended cutting data
According to the wear results, conditions can be changed to optimize performance
* For small diameters (4-5.99), reduce cutting speed by 20%
* When using more than 5xD drill ratio, reduce cutting parameters by 10%
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