TECHNICAL INFORMATION FOR SAW BLADES

CUTTING FEED

Surface quality

​

The quality to be obtained on a surface is associated to the cutting feed especially of each tooth feed and the number of teeth of the tool.

The feed speed can be easily calculated as following:

​

Vf = Fz x n x Z m/min 1000

​

Whereas:
Fz= Feed Speed per edge in mm/rotation. n= Maximum allowable cutter rpm.
Z= Number of teeth.

​

GRAPHIC TO DETERMINE the number of teeth / Feed

FEED BY TEETH RECOMMENDED

for different kinds of materials

​

​

Fz (mm) Materials

​

0,10 - 0,20 Solid wood

​

0,05 - 0,25 Particle board

​

0,03 - 0,08 Chip board

​

0,03 - 0,06 Coated chip board

​

0,05 - 0,12 Aluminium

​

0,03 - 0,08 Al-Mg-Cu

​

0,02 - 0,05 Fiber cement

​

0,05 - 0,15 Thermoplastics

RECOMMENDED CUTTING SPEEDS

for different kinds of wood

​

Vc (m/s)

​

60 - 100 Soft woods

55 - 90 Hard woods  

​

50 - 85 Exotic wood  

​

50 - 80 Particle board  

​

60 - 80 Chip board  

​

60 - 80 Coated chip board  

​

60 - 80 MDF 

​

30 - 60 Phenolic laminates  

​

15 - 50 Corian® 

​

40 - 70 Aluminium

​

40 - 60 Al-Mg-Cu

​

40 - 60 Fiber cement

EXAMPLE:

To determine the feed of a saw blade with 36 teeth with a feed of Fz=0,15 and an angular speed of 6000 rpm.
Vf= 32,4 m/min

​

​

 CUTTING SPEED

​

The cutting speed, i.e. the speed of the cut- ter edge radius is calculated considering the diameter of the cutter on the cutting point and in the number of rotations (angular speed).

It is calculated from the formula

Vc = D x π x n   m/s

1000 x 60

​

WHERAS:

​

D= External diameter in mm
n= Number of rotations per min.

π= Constant = 3,14

Example:

To determine the circular speed (RPM) of a saw blade with a diameter of 300 mm and a cutting speed of 70 m/s.

​

rpm = 4500

GRAPHIC TO DETERMINE THE DIAMETER OR RPM OF CIRCULAR SAW BLADES.