Page 877 - Tungaloy Catalog

Standard cutting conditions

Feed: f (ipr)

Cutting speed
ISO Workpiece material øDc (in)
Vc (sfm) ø0.393 - ø0.468 ø0.472 - ø0.547 ø0.551 - ø0.625 ø0.629 - ø0.783
(ø10.0 - ø11.9)
(ø16.0 - ø19.9)
(ø14.0 - ø15.9)
(ø12.0 - ø13.9)
Low carbon steels (C < 0.3) 260 -450 0.006 - 0.011 0.007 - 0.012 0.008 - 0.014 0.01 - 0.017
1010, 1020, 1025 etc.
High carbon steels (C > 0.3) 230 - 400 0.006 - 0.011 0.007 - 0.012 0.008 - 0.014 0.01 - 0.017
1045, 1055 etc.
Low alloy steels 230 - 400 0.005 - 0.011 0.006 - 0.012 0.007 - 0.014 0.009 - 0.015
5120 etc.
Alloy steels 130 - 300 0.005 - 0.011 0.006 - 0.012 0.007 - 0.013 0.009 - 0.015
4140, 5120 etc.

Stainless steels 100 - 230 0.004 - 0.007 0.005 - 0.008 0.006 - 0.009 0.006 - 0.010
304, 316 etc.
Gray cast irons 260 - 600 0.008 - 0.014 0.010 - 0.015 0.011 - 0.017 0.014 - 0.021
No.250B etc.
Ductile cast irons 260 - 450 0.008 - 0.014 0.010 - 0.015 0.011 - 0.017 0.014 - 0.021
80-55-06 etc.

Aluminum alloys 260 - 720 0.010 - 0.015 0.011 - 0.017 0.014 - 0.020 0.015 - 0.024
7075 etc.
Titanium alloys 65 - 160 0.003 - 0.006 0.004 - 0.011 0.005 - 0.008 0.006 - 0.009
Ti-6Al-4V etc.
Nickel-based alloys 65 - 160 0.003 - 0.006 0.004 - 0.006 0.005 - 0.007 0.006 - 0.009

● Cutting conditions in the above table show standard cutting ● Machined hole diameter may change depending upon the
conditions. rigidity of the machine tool or cutting conditions.
● Cutting conditions may change due to the rigidity and ● In case of L/D = 8 drill, the recommended range of cutting
power of the machine and the workpiece material. speeds and feeds is between the minimum and median
values listed above.
Grade
11
AH725

“Triple Force Technology” Newly improved coating layer Drilling Tools
Flat and smooth coated surface improves features great adhesion strength
resistance to chip welding and insert edge between coating and substrate.
chipping. For standard to high speed cutting.

Well-balanced micro alloy
substrate is effective for plastic
Well- deformation resistance and
balanced toughness.
fracture
resistance
Super flash coating
“Triple Force Technology” improves overall coating
Excellent surface quality.
Chip Control
Conventional AH725
Excellent
wear
resistance

Relating Cutting Conditions Technical reference 11–61
pages (11-14 ) (14-1)