Coppia e potenza per le frese a candela in metallo duro KM

Per angolo di registrazione di 0º in metallo duro - Frese a candela elicoidali a spoglia positiva con utensili a cambio rapido KM

Conversion of Workpiece Material Rockwell (Optional)

Unit: inch metric

Metric

Inch

Conversion of Workpiece Material Rockwell (Optional)

Skip this step if you already know the Brinell hardness number(HB)

Hardness HRB OR HRC into Brinell Hardness (HB)

Rockwell HRC Rockwell HRB

Calculate Hardness

Characteristics of Workpiece Materials

Characteristics of Workpiece Materials

Brinell Hardness

HB

Ultimate strength

PSI

Ultimate Strength shown for generic steel. Please enter the actual value of your workpiece material if available&#44 for better accuracy You may look up this info through websites such as www.matweb.com

End Mill Nomenclature

End Mill Nomenclature

d₁ Effective cutting diameter

in. mm.

d_KM Input KM size

32 40 50 63 80 100

l₁ Distance from the centerline to the nose radius of the insert

in. mm.

l₂ Distance from the flange face to the nose radius of the insert

in. mm.

z Number of flutes in the cut

z_e Number of effective flutes

Machining Conditions

Machining Conditions

V_c Cutting speed

sfm m/min

a_p Axial Depth of cut

in.(DOC) mm (DOC)

a_e Radial width of cut

in.(WOC) mm(WOC)

f_z Required feed per tooth

in. IPT (chip load) mm

C_m Machinability factor

Machinability factors

Most Common Workpiece Materials			Cm at W/D ratios:
			W/D < = 0.66	0.66 < W/D < 1.0	W/D = 1.0
Aluminum alloys			1.0	1.05	1.1
Carbon and alloy steels			1.0	1.15	1.3
Cast irons			1.0	1.15	1.3
Titanium alloys			1.0	1.20	1.4
Stainless steel&#44 High-temperature alloys			2.0	2.15	2.3

C_w Tool wear factor:

Tool Wear Factors

Milling	Depth of cut	Feed per tooth	Cw
Category	(min-max), in.	(min-max), in.	 
Light	0.020-0.100	0.003-0.006	1.1
Medium	0.100-0.200	0.006-0.010	1.2
Heavy duty	0.200-0.400	0.010-0.020	1.3

E Machine efficiency factor

Direct Belt Drive	.9
Back Gear Drive	.75
Geared Head Drive	.7-.8
Oil - Hydraulic Drive	.6-.9

Calcola

Safe Operating Conditions

Safe Operating Conditions

> C_L Empirical coefficient for load

> F_max Maximum permissible load applied to KM joint

lb N

> F_tmax Maximum permissible tangential force

lb N

> C_T Empirical coefficient for torque

> T_max Maximum permissible torque applied to KM joint

ft lb Nm

> T_p Maximum permissible actual torque

ft lb Nm

Calculated Machining Conditions

Calculated Machining Conditions

n Spindle speed

RPM

V_f Feed rate

(IPM)(no productivity formula) mm/min (no productivity formula)

Reduced feed per tooth

in (chip load at the cut) mm/min

F_p Feed rate

(IPM)(with productivity formula) mm/min

Q Metal removal rate

in.³/min MRR cm3/min³

A Cross-sectional area of chip

in.² mm²

Number of flutes in the cut

a_e/d₁ Ratio of radial width of cut to cutting diameter:

Calculated Required Power

Calculated Required Power

F_t Tangential cutting force

lbf should not exceed Ft max N should not exceed Ft max

T Actual torque

ft-lb should not exceed Tp Nm should not exceed Tp

Machining Power

at the cutter

HPc kW

at the motor

hp kW