Machining Recommendations for TRIDEEP BTA Drilling Heads

Tensile StthMaterial GHdCutting dFeed : f Drill d(mm/rev) ia(mm)
ISO MaterialConditionreng [N/mm2]roup No.(1)arness (HB)Chipbreakerspee Vc (m/min)Ø16-18. Ø18.01-40
< 0.25 %CAnnealed4201125GF DT50-100 80-1400.03-0.10 0.05-0.100.03-0.10 0.05-0.10
Non-alloy steel and >= 0.25 %CAnnealed6502190GF DT50-100 80-1400.03-0.10 0.05-0.100.03-0.10 0.05-0.10
cast steel, free cutting < 0.55 %CQuenched and tempered8503250GF DT50-100 80-1400.03-0.10 0.05-0.160.03-0.12 0.05-0.20
steel >= 0.55 %CAnnealed7504220GF DT50-100 80-1400.03-0.10 0.05-0.160.03-0.12 0.05-0.20
Quenched and tempered10005300GF DT50-100 80-1400.03-0.10 0.05-0.160.03-0.12 0.05-0.20
Annealed6006200GF DT50-100 80-1400.03-0.10 0.05-0.100.03-0.10 0.05-0.10
P Low alloy and cast steel (less than 5% of9307275GF DT50-100 80-1400.03-0.10 0.05-0.100.03-0.10 0.05-0.10
alloying elements)Quenched and tempered10008300GF DT50-100 80-1400.03-0.10 0.05-0.100.03-0.10 0.05-0.10
12009350GF DT50-100 80-1400.03-0.10 0.05-0.100.03-0.10 0.05-0.10
High alloyed steel, castAnnealed68010200GF DT50-100 80-1200.03-0.10 0.05-0.160.03-0.12 0.05-0.20
steel and tool steelQuenched and tempered110011325GF DT50-100 80-1200.03-0.10 0.05-0.160.03-0.12 0.05-0.20
Stainless steelFerritic/martensitic68012200GF DT50-100 60-1000.03-0.06 0.05-0.100.03-0.06 0.05-0.10
and cast steelMartensitic82013240GF DT50-100 60-1000.03-0.06 0.05-0.100.03-0.06 0.05-0.10
M Stainless steel and cast steelAustenitic, duplex60014180GF DT50-100 60-1000.03-0.06 0.05-0.100.03-0.06 0.05-0.10
Ferritic/pearlitic15180GF50-1000.03-0.150.05-0.18
Gre cast iron (GG)DT80-1400.05-0.250.05-0.3
yPearlitic/martensitic16260GF DT50-100 80-1400.03-0.15 0.05-0.250.05-0.18 0.05-0.3
Ferritic17160GF50-1000.03-0.150.05-0.18
K Nodular cast iron (GGG)DT GF80-140 50-1000.05-0.25 003-0150.05-0.3 005-018
Pearlitic18250DT80-140.. 0.05-0.25.. 0.05-0.3
Malleable cast ironFerritic19130GF DT50-100 80-1400.03-0.15 0.05-0.250.05-0.18 0.05-0.3
Pearlitic20230GF50-1000.03-0.150.05-0.18
DT80-1400.05-0.250.05-0.3
Aluminum-wrought alloysNot hardenable2160GF DT80-160 100-2000.03-0.15 0.05-0.200.03-0.015 0.05-0.20
Hdbl22100GF80-1600.03-0.150.03-0.015
arenaeDT100-2000.05-0.200.05-0.20
≤ 12% SiNot hardenable2375GF DT80-160 100-2000.03-0.15 0.05-0.200.03-0.015 0.05-0.20
N Aluminum- cast alloysHardenable2490GF DT80-160 100-2000.03-0.15 0.05-0.200.03-0.015 0.05-0.20
>12% SiHigh temperature25130GF80-1600.03-0.150.03-0.015
DT100-2000.05-0.200.05-0.20
>1% PbFree cutting26110GF DT80-160 100-2000.03-0.15 0.05-0.200.03-0.015 0.05-0.20
Copper alloysBrass2790GF DT80-160 100-2000.03-0.15 0.05-0.200.03-0.015 0.05-0.20
Electrolitic copper28100GF DT80-160 100-2000.03-0.15 0.05-0.200.03-0.015 0.05-0.20
Fe baseAnnealed31200GF DT50-100 60-1000.03-0.06 0.05-0.100.03-0.06 0.05-0.10
Hardened32280GF50-1000.03-0.060.03-0.06
DT60-1000.05-0.100.05-0.10
High temp. alloysAnnealed33250GF DT20-50 20-500.03-0.06 0.04-0.080.03-0.08 0.04-0.10
S Ni / Co baseHardened34350GF DT20-50 20-500.03-0.06 0.04-0.080.03-0.08 0.04-0.10
Cast35320GF DT20-50 20-500.03-0.06 0.04-0.080.03-0.08 0.04-0.10
Titanium alloysPure40036GF DT30-60 30-600.03-0.10 0.05-0.130.03-0.12 0.05-0.15
Alpha+beta alloys hardened105037GF DT30-60 30-600.03-0.10 0.05-0.130.03-0.12 0.05-0.15
H Hardened steel ≥ 40HRCHardened38GF DT40-100 50-1000.03-0.08 0.04-0.080.03-0.08 0.04-0.10

(1) For material groups see pages 495-524