Coated Carbide Drills for Steel & Cast Iron MDH Series
High-efficiency Drilling Performance Reduced Cycle Time
(Cylinder Component)
5
4
2.4 sec 56% reduction
3
Drilling time 3.6
2
Drilling time 1.2
1
Drill return time 0.7
Drill return time 0.7
0
MDH Series
Conventional Tool
MDH Series
Conventional Tool
65
130
195
260
325
390
After Drilling 500 pcs
After Drilling 1,500 pcs
Work Material: 4140 Steel, Tool: MDH0600S06H05 Cutting Conditions: MDH Series
vc = 265 SFM f = .0138 IPR vc = 168 SFM f = .0075 IPR
H = 1.000” (Blind) Wet (Water-soluble, Internal Coolant Supply) H = 1.000” (Blind) Wet (Water-soluble, Internal Coolant Supply)
Conventional Tool
Approx. 3 times the drilling efficiency and 3 times longer tool life
Power Consumption and Drilling Time per Hole
Power Consumption per Hole
Standby Pump Drilling — D Drilling time
3
8,000
2.0
Conventional Tool
MDH series
1.5
6,000
MDH series
2
Conventional Tool
MDH series
MDH series
4,000
1.0
1
0.5
2,000
0
0
0
0.50 0.25 Feed Rate per Revolution f (mm/rev) 0.25
0.50 0.25 Feed Rate per Revolution f (mm/rev) 0.25
Work Material: 1050 Stel, Tool: MDH0800S08H05 Cutting Conditions: vc = 265 SFM H = 1.496” (Through)
Wet (Water-soluble, Internal Coolant Supply)
*Power consumption is based on calculations made at Sumitomo-owned facilities and may vary with operating environment.
High-efficiency drilling substantially reduces drilling power consumption
6
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