Optimize Your Drilling Process with Our Expert Selection of Cutting Parameters

(1) Cutting parameters for drilling different materials using high-speed steel drill bits

Workpiece material       Hardness       Cutting speed
V/(m/min)
Drill bit diameter
d/mm
Drill bit helix angle
/(°)
Drill point angle
/(°)
Brinell
HBS
Rockwell
HRB
<33~66~1313~1919~25
Feed rate
f/(mm/r)
Aluminum and aluminum alloy       45~105~621050.080.150.250.400.4832~4290~118
Aluminum and aluminum alloy       High machinability       ~12410~70600.080.150.250.400.4815~40118
Low machinability       ~12410~70200.080.150.250.400.480~25118
Magnesium and magnesium alloy       50~90~5245~1200.080.150.250.400.4825~35118
Zinc alloy       80~10041~62750.080.150.250.400.4832~42118
Carbon steel       ~0.25C125~17571~88240.080.130.200.260.3225~35118
~0.50C175~22588~98200.080.130.200.260.3225~35118
~0.90C175~22588~96170.080.130.200.260.3225~35118
Alloy steel       0.12~0.25C175~22588~98210.080.150.200.400.4825~35118
0.30~0.65C175~22588~9815~180.050.090.150.210.2625~35118
Tool steel       19694180.080.130.200.260.3225~35118
Gray cast iron       Soft120~150~8043~460.080.150.250.400.4830~3090~118
Medium-hard       160~22080~9724~340.080.130.200.260.3214~2590~118
Malleable cast iron       112~126~7127~370.080.130.200.260.3220~3090~118
Ductile cast iron190~225~98180.080.130.200.260.3214~2590~118
Plastic       300.080.130.200.260.3215~25118
Hard rubber       30~900.050.090.150.210.2610~2090~118

(2) Cutting parameters for drilling different materials using hard alloy drill bits

Workpiece material         Tensile strength resistance
σb/MP a
Hardness 
HBS
Feed rate
f/(mm/r)
Cutting speed
V/(m/min)
Cutting fluid       
d/mm
5~1011~305~1011~30
 Tool steel       1000
1800~1900
2300
300
500
575
0.08~0.12
0.04~0.15
<0.02
0.12~0.2
0.05~0.08
<0.03
35~40
8~11
<6
40~45
11~14
7~10
Non-water soluble cutting oil       
Nickel-chromium steel       1000
1400
300
420
0.08~0.12
0.04~0.05
0.12~0.2
0.05~0.08
35~40
15~20
40~45
20~25
Cast steel500~600——0.08~0.120.12~0.235~3838~40
Stainless steel       ————0.08~0.120.12~0.225~2727~35
Heat-resistant steel       ————0.01~0.050.05~0.13~65~8
Gray cast iron       ——2000.2~0.30.3~0.540~4545~60Dry cutting or emulsion       
Alloy cast iron——230~3500.03~0.070.05~0.120~4025~45Non-water soluble cutting oil or emulsion       
——350~4000.03~0.050.04~0.088~2010~25
Malleable cast iron       ————0.15~0.20.2~0.435~3838~40Dry cutting or emulsion       
Brass————0.07~0.150.1~0.270~10090~100
Cast bronze       ————0.07~0.10.09~0.250~7055~75
Aluminum————0.15~0.30.3~0.8250~270270~300Dry cutting or gasoline       
Hard rubber————0.2~0.430~60 
Thermosetting resin       ————0.04~0.160~90 
Plastic————0.05~0.2530~60 
Glass————Hand feed4.5~4.7 
Fiberglass composite material ————0.063~0.127198 
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Shane
Author

Shane

Founder of MachineMFG

As the founder of MachineMFG, I have dedicated over a decade of my career to the metalworking industry. My extensive experience has allowed me to become an expert in the fields of sheet metal fabrication, machining, mechanical engineering, and machine tools for metals. I am constantly thinking, reading, and writing about these subjects, constantly striving to stay at the forefront of my field. Let my knowledge and expertise be an asset to your business.

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