Page 12 - Bohrer Hauptkatalog

AQUA Drills 3 Flutes with end cutting teeth
High Grade Drilling
High corrective force for position displacement when drilling cast holes in steel or aluminum achieves boring with high-positioning accuracy. Reamless finishing is also possible.
High grade accuracy
Drilled accuracy of S35C
Amount of Displacement
Before After
■ Drilling condition Drill : 7mm
Cutting Speed : 40m/min Feed : 350mm/min
Depth : 7mm
Prepared Hole Diameter : 6mm Eccentric Amount : 0.1mm
Roundness 1.49μm
Surface Roughness Rz=2.8μm 0.1mm 1μm
Over Size 4μm Displacement 11μm
1.49μm
AQUA Drills Hard
High stiffness tool design prevent sudden breakage from micro chipping.
High efficiency and long tool life
■ AQDH
24
Machining Efficiency(mm/min)
40 60 80 100 120 140
■ Competitor 24
23 22 15
10
Feed(mm/rev) Machining Efficiency(mm/min)
40 60 80 100 120 140
23 22 15 10
800 900 200 300
Number of Holes
20
The Longest Tool Life Condition
The Highest Efficient Condition
400 500 600 700
0.01 0.025 0.04 0.055 0.07 0.085 0.1
0.01
0.025 0.04
Feed(mm/rev)
20
Number of Holes
The Longest Tool Life Condition
The Highest Efficient Condition
0.055 0.07 0.085 0.1
300 200
11
Cutting Speed(mm/min) Cutting Speed(mm/min)
Technical Information: UK