Force, Torque, and Power

邮寄地址

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

Characteristics of Workpiece Materials

Brinell Hardness

HB

Ultimate strength

PSI N/mm 2

Type of Z-Axis cut

Yes No

K Factor

Z axis Mill Nomenclature

d₁ Effective cutting diameter

in mm

z Number of inserts/cutter

Machining Conditions

V_c Cutting speed

sfm m/min

Depth of cut

in mm

f_z Required feed per tooth

in. IPT (chip load) mm

C_mMachinability factor

Machinability factors

Machinability factors
Most Common Workpiece Materials			Cm at W/D ratios:
Most Common Workpiece Materials			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

E Machine efficiency factor

Machine Tool Efficiency factors

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

CalculatedMachiningConditions.heading.label

n Spindle speed

RPM

V_f Feed rate

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

QMetal removal rate

MRR cm3/min

ACross-sectional area of chip

in.² mm²

Calculated Required Power

P_s at the cutter

HPc kW

P_m at the motor

hp kW

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