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		<3	3~6	6~13	13~19	19~25
			Brinell HBS	Rockwell HRB		Feed rate f/(mm/r)
Aluminum and aluminum alloy			45~105	~62	105	0.08	0.15	0.25	0.40	0.48	32~42	90~118
Aluminum and aluminum alloy		High machinability	~124	10~70	60	0.08	0.15	0.25	0.40	0.48	15~40	118
Aluminum and aluminum alloy		Low machinability	~124	10~70	20	0.08	0.15	0.25	0.40	0.48	0~25	118
Magnesium and magnesium alloy			50~90	~52	45~120	0.08	0.15	0.25	0.40	0.48	25~35	118
Zinc alloy			80~100	41~62	75	0.08	0.15	0.25	0.40	0.48	32~42	118
Carbon steel	~0.25C		125~175	71~88	24	0.08	0.13	0.20	0.26	0.32	25~35	118
	~0.50C		175~225	88~98	20	0.08	0.13	0.20	0.26	0.32	25~35	118
	~0.90C		175~225	88~96	17	0.08	0.13	0.20	0.26	0.32	25~35	118
Alloy steel	0.12~0.25C		175~225	88~98	21	0.08	0.15	0.20	0.40	0.48	25~35	118
Alloy steel	0.30~0.65C		175~225	88~98	15~18	0.05	0.09	0.15	0.21	0.26	25~35	118
Tool steel			196	94	18	0.08	0.13	0.20	0.26	0.32	25~35	118
Gray cast iron	Soft		120~150	~80	43~46	0.08	0.15	0.25	0.40	0.48	30~30	90~118
Gray cast iron	Medium-hard		160~220	80~97	24~34	0.08	0.13	0.20	0.26	0.32	14~25	90~118
Malleable cast iron			112~126	~71	27~37	0.08	0.13	0.20	0.26	0.32	20~30	90~118
Ductile cast iron			190~225	~98	18	0.08	0.13	0.20	0.26	0.32	14~25	90~118
Plastic			—	—	30	0.08	0.13	0.20	0.26	0.32	15~25	118
Hard rubber			—	—	30~90	0.05	0.09	0.15	0.21	0.26	10~20	90~118

Workpiece material	Tensile strength resistance σ_b/MP a	Hardness HBS	Feed rate f/(mm/r)		Cutting speed V/(m/min)		Cutting fluid
			d/mm
			5~10	11~30	5~10	11~30
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 steel	500~600	——	0.08~0.12	0.12~0.2	35~38	38~40
Stainless steel	——	——	0.08~0.12	0.12~0.2	25~27	27~35
Heat-resistant steel	——	——	0.01~0.05	0.05~0.1	3~6	5~8
Gray cast iron	——	200	0.2~0.3	0.3~0.5	40~45	45~60	Dry cutting or emulsion
Alloy cast iron	——	230~350	0.03~0.07	0.05~0.1	20~40	25~45	Non-water soluble cutting oil or emulsion
Alloy cast iron	——	350~400	0.03~0.05	0.04~0.08	8~20	10~25	Non-water soluble cutting oil or emulsion
Malleable cast iron	——	——	0.15~0.2	0.2~0.4	35~38	38~40	Dry cutting or emulsion
Brass	——	——	0.07~0.15	0.1~0.2	70~100	90~100
Cast bronze	——	——	0.07~0.1	0.09~0.2	50~70	55~75
Aluminum	——	——	0.15~0.3	0.3~0.8	250~270	270~300	Dry cutting or gasoline
Hard rubber	——	——	0.2~0.4		30~60
Thermosetting resin	——	——	0.04~0.1		60~90
Plastic	——	——	0.05~0.25		30~60
Glass	——	——	Hand feed		4.5~4.7
Fiberglass composite material	——	——	0.063~0.127		198