Page 105 - ISCAR(HOLE_MAKING_CATALOG_65)

USER GUIDE

Material Groups Recommended Machining Conditions

Feed vs. Drill Diameter mm/rev

Tensile Hardness HB Material No. Cutting INDEXABLE DRILLS
Strength Speed Vc D=6.8-10.9 D=11-12.9 D=13-14.9 D=15-16.9 D=17-20.9 D=21-25.9
ISO Material Condition [N/mm ] m/min
2
< 0.25 %C Annealed 420 125 1 50-130
Non-alloy ≥ 0.25 %C Annealed 650 190 2 100-120
steel and Quenched and
cast steel, < 0.55 %C tempered 850 250 3 90-110 0.12-0.2 0.15-0.25 0.2-0.3 0.25-0.35 0.25-0.45 0.25-0.45
free cutting Annealed 750 220 4 90-120
steel ≥ 0.55 %C Quenched and
tempered 1000 300 5 70-90
Annealed 600 200 6 80-130
P Low alloy and cast 930 275 7 70-110
steel (less than 5% of Quenched and 0.12-0.2 0.15-0.25 0.2-0.3 0.25-0.35 0.3-0.4 0.3-0.45
alloying elements) tempered 1000 300 8 60-90
1200 350 9 40-70
Annealed 680 200 10 50-80
High alloyed steel, cast
steel and tool steel Quenched and 1100 325 11 40-70 0.12-0.2 0.12-0.22 0.15-0.25 0.2-0.28 0.25-0.33 0.25-0.35
tempered
Ferritic/
Stainless steel martensitic 680 200 12 20-50 0.08-0.14 0.12-0.22 0.12-0.15 0.14-0.20 0.16-0.24 0.15-0.28
and cast steel
Martensitic 820 240 13
Stainless steel
M Austenitic, duplex 600 180 14 20-50 0.08-0.14 0.12-0.22 0.12-0.15 0.14-0.20 0.16-0.24 0.15-0.28
and cast steel
Ferritic / pearlitic 180 15 90-140
Gray cast iron (GG) Pearlitic / 260 16 80-130
martensitic 0.2-0.3 0.25-0.35 0.3-0.4 0.35-0.45 0.4-0.5 0.4-0.6
K Nodular cast iron (GGG) Ferritic 160 17 100-180
Pearlitic 250 18 90-160
Ferritic 130 19
Malleable cast iron
Pearlitic 230 20
Aluminum- Not hardenable 60 21 90-160
wrought alloys Hardenable 100 22 80-120 0.2-0.35 0.25-0.4 0.3-0.45 0.35-0.5 0.4-0.6 0.4-0.65
≤12% Si Not hardenable 75 23 90-160
Aluminum- Hardenable 90 24
cast alloys
>12% Si High temperature 130 25
N >1% Pb Free cutting 110 26
Copper Brass 90 27
alloys Electrolytic
copper 100 28
Duroplastics, 29
Non metallic fiber plastics
Hard rubber 30
Annealed 200 31 30-50
Fe based 0.05-0.1 0.08-0.13 0.1-0.15 0.12-0.18 0.12-0.2 0.12-0.22
High Hardened 280 32 20-40
temperature Annealed 250 33 20-50 0.06-0.12 0.09-0.15 0.12-0.18 0.15-0.2 0.15-0.23 0.15-0.25
alloys Ni or Co Hardened 350 34
S based
Cast 320 35
Pure 400 36
Titanium alloys Alpha+beta
alloys, hardened 1050 37
55
Hardened HRC 38 20-50 0.06-0.12 0.09-0.15 0.12-0.18 0.15-0.2 0.15-0.23 0.15-0.25
Hardened steel
Hardened 60 39
H HRC
Chilled cast iron Cast 400 40 20-50 0.06-0.12 0.09-0.15 0.12-0.18 0.15-0.2 0.15-0.23 0.15-0.25
55
Cast iron Hardened 41
HRC
• When using external coolant supply only, reduce cutting speed by 10% • When using more than 5XD drill ratio, reduce cutting parameters by 10% As a starting value, the
middle of the recommended machining range should be used. Then, according to the wear results, conditions can be changed to optimize performance. The data refers to
IC908. For IC1008, cutting speed should be increased by 15%.
103