Performance

Our end mills have the best material removal rates on the market, while reducing the forces the tool must endure. The resulting chips are of optimal geometry, clearly scored and perfectly projected. The low noise level provides excellent vibration control. By working in partnership with our advanced materials research centre, PIRANHA has been able to create a line of innovative, high-performance products, thereby optimizing the cost per part produced in its customers’ manufacturing processes.

Performance tests done in each of these categories :
P
Steel
M
Stainless
K
Cast Iron
N
Aluminium
S
High temp
H
Hard
 
Feed & Speed
Reference table
RPM = SFM x 3.82
Diameter
IPM = RPM x Feed RateFeed per tooth x FNumber of flutes
FEED in./min  
MATERIAL
REMOVAL RATE
IN.3/MIN.
= IPM
Feed
(in./min)
x aeRadial
engagement
x apAxial
engagement
  Tooth path
SFM
Surface
Feet per Minuteft./min

4F axial = 1xDc;
2/3 of the
recommended
diameter

5F axial = 2XDc

6F:
The maximum axial
the tool allows
P MILD STEEL 500 600 750
 
35HRC STEEL 350 450 600
Steel
M SS 300-400 300 350 525
 
SS 15-5 AND 17-4PH 225 350 525
Stainless
K GREY 350 500 750
 
DUCTILE 225 400 600
Cast Iron
S TITANIUM 150 230 8% radial400
 
INCONEL 75 90 5% radial135
High temp.
P
Steel
K
Cast Iron
S
High temp

FEED PER TOOTH
Based on a tool with 0.5” in diameter

Slotting engagement Large engagement Small engagement
0.003” 0.0045” 0.006”
Use the rule of 3 for different diameters  
M
Stainless

FEED PER TOOTH
Based on a tool with 0.5” in diameter

Slotting engagement Large engagement Small engagement
0.0015” 0.0045” 0.006”
Use the rule of 3 for different diameters  
N Aluminium 1200 SFM TO MAX RPM N

FEED PER TOOTH
Based on a tool with 0,5 in diameter 0,008”

CALCULATION
EXAMPLES

Parameters
M SS304
F 5
D 0.5"
ap 0.75"
LARGE
radial engagement
30%
IPM ae   ap  
( RPM Feed Rate   F )  
( 350 x 3.82 ) 0.003 x 5 0.15 x 0.75 = 4.51 in3/min
0.5
SMALL
radial engagement
8%
IPM ae   ap  
( RPM Feed Rate   F )  
( 525 x 3.82 ) 0.006 x 5 0.04 x 0.75 = 3.61 in3/min
0.5
Reference table
N (tr/min) = vc (m/min x 1000)
π x Diameter
Vf (mm/min) = N (tr/min) x fz (mm) x Z
MATERIAL
REMOVAL RATE
Q (cm3/min) = Vf (mm/min) x ae (mm) x ap (mm)
  1000
  Tooth path
Vc
m/min

4F axial = 1xDc;
2/3 of the
recommended
diameter

5F axial = 2XDc

6F:
The maximum axial
the tool allows
P MILD STEEL 155 185 230
 
35HRC STEEL 110 140 185
Steel
M SS 300-400 95 110 160
 
SS 15-5 AND 17-4PH 70 110 160
Stainless
K GREY 110 155 230
 
DUCTILE 70 125 185
Cast Iron
S TITANIUM 45 70 8% radial125
 
INCONEL 25 30 5% radial45
High temp.
P
Steel
K
Cast Iron
S
High temp

FEED PER TOOTH
(in mm)
Based on a tool with 12mm in diameter

Slotting engagement Large engagement Small engagement
0.075 0.115 0.155
Use the rule of 3 for different diameters  
M
Stainless

FEED PER TOOTH (in mm)
Based on a tool with 12 mm in diameter

Slotting engagement Large engagement Small engagement
0.04 0.075 0.155
Use the rule of 3 for different diameters  
N Aluminium 365 Vc TO MAX RPM N

FEED PER TOOTH (in mm)
Based on a tool with 12 mm in diameter
0.205

CALCULATION
EXAMPLES

Parameters
M SS304
F 5
D 12 mm
ap 25 mm
LARGE
radial engagement
30%
Vf ae   ap  
( N fz   Z )  
( 110 x 1000 ) 0.075 x 5 3.6 x 25 = 98.5 cm3/min
π x 12
1000  
SMALL
radial engagement
8%
Vf ae   ap  
( N fz   Z )  
( 160 x 1000 ) 0.155 x 5 0.96 x 25 = 79.9 cm3/min
π x 12
1000