Общий каталог Tungaloy 2020 - 2021 - страница 1652

Part details Types

Neck Square Shank

Neck length Flute length Shank length Overall length

Centre hole

Ball nose

RE Radius

Concave Radial rake angle Peripheral Corner cutting edge Land width End

Flute 1st radial relief cutting edge

2nd radial relief End gash Axial rake

1st end relief 2nd end relief

RE Taper neck

Ball nose with taper neck

RE

Cutting condition o f Endmills

Cutting speed

Cutting speed (Calculated from number of revolutions)

v ： Cutting speed (m/min)

c d ： Effective diameter (mm)〔DC〕

n ： Number of revolutions (min- 1)

π 5 3.14

Number of revolution (Calculated from cutting speed)

Feed speed and feed per tooth

v f : Feed speed (mm/min)

fz : Feed per tooth (mm/t) z : No. of teeth of the endmills n : Number of revolutions (min-1) Up milling Down milling 〔 〕The notation in the brackets is the one used in the catalog (ISO compliant)

Cutting

The necessary capacity of the machine is limited by the length of cut

edge of the endmill.

Up milling and down milling

Down milling generally produces better tool life and surface

roughness.

In case of cast iron sand inclusion or welding surface, up milling is

recommended.