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CoroMill® QD

High-security groove milling and parting off

Instructions

Application tips

Maximum chip thickness

For parting and grooving milling applications, the most important factor to keep in mind is the maximum chip thickness (hex). Calculating cutting parameter according to right hex value will ensure good cutting action with better surface quality and tool life.

Parting off

Parting off is often one of the last operations before the completion of the component, security is therefore of major importance. If the tool breaks during the parting, it generally scraps the component, but it may also lead to a longer machine stoppage.

 

Recommendations

Torque

Coupling size ​Torque, Nm (ft/lbs)
X10 6.4 (4.7)
​X22/Y25 3.9 (2.9)
​X32/Y31 ​6.4 (4.7)
​X40* ​70 (51.6)

* Note: Not countersunk screws.

Coolant pressure

Higher internal coolant pressure improves chip evacuation.

​Seat size ​Maximum coolant pressure, bar (PSI)
E, F 50 (725)
​G, H, J, K 70 (1015)

Maximum chip thickness - hex 

Metric 




Geometry



Grade ​
           
h
ex
ISO P ISO M ISO K ISO N ISO S ISO H

PL
1030 0.05 (0.02–0.08) 0.05 (0.02–0.08)
4240 0.05 (0.02–0.08)


​PM
​ ​
​1030 ​0.11 (0.07–0.15)
​Seat size
E, F, G, H, J
​1130 ​0.11 (0.07–0.15)
​4240 ​0.11 (0.07–0.15)


​PM
​ ​
​1030 ​0.10 (0.07–0.10)

Seat size K
​1130 ​0.10 (0.07–0.10)
​4240 ​0.10 (0.07–0.10)

​PH
​1130 ​0.11 (0.04–0.13) ​Seat size
E, F, G, H, J
​4240 ​0.11 (0.04–0.13)

​PH
​1130 ​0.10 (0.04–0.10)
​Seat size K
​4240 ​0.10 (0.04–0.10)

​ML
​1040 ​0.04 (0.01–0.07) ​0.04 (0.01–0.07) ​0.11 (0.07–0.15) ​ ​
​2040 ​0.04 (0.01–0.07)

​MM
​1040 ​0.08 (0.04–0.12) ​0.08 (0.04–0.12) ​0.11 (0.07–0.15) ​ ​
​2040 ​0.08 (0.04–0.12)

​KL
​1020 ​0.11 (0.02–0.15) ​ ​
​3330 ​0.11 (0.02–0.15)

​KM
​1020 ​0.11 (0.02–0.15) ​ ​
​3330 ​0.11 (0.02–0.15)

​SL
​1030 ​0.04 (0.01–0.07) ​0.04 (0.01–0.07) ​0.04 (0.01–0.07) ​ ​ ​ ​ ​
​S30T ​0.04 (0.01–0.07) ​0.04 (0.01–0.07) ​0.04 (0.01–0.07)


​SM
​ ​
​1030 ​0.08 (0.04–0.12) ​0.08 (0.04–0.12) ​0.08 (0.04–0.12)
​S30T ​0.08 (0.04–0.12) ​0.08 (0.04–0.12) ​0.08 (0.04–0.12)
​S40T ​0.08 (0.04–0.12) ​0.08 (0.04–0.12)
​NL ​H13A ​0.13 (0.01–0.25)

 

Inch




Geometry



Grade ​
           
h
ex
ISO P ISO M ISO K ISO N ISO S ISO H ​ ​

PL
1030 0.002 (0.001–0.003) 0.002 (0.001–0.003)
4240 0.002 (0.001–0.003)


​PM ​ ​
​1030 0.004 (0.003–0.003)
​Seat size
E, F, G, H, J
​1130 0.004 (0.003–0.003)​
​4240 ​0.004 (0.003–0.003)


​PM ​ ​
​1030 0.004 (0.003–0.003)

Seat size K
​1130 0.004 (0.003–0.003)
​4240 ​0.004 (0.003–0.003)

​PH ​
​1130 0.004 (0.002–0.003) ​Seat size
E, F, G, H, J
​4240 ​0.004 (0.002–0.003)

​PH ​
​1130 ​0.004 (0.002–0.003)
​Seat size K
​4240 ​0.004 (0.002–0.003)

​ML ​
​1040 0.002 (0.001–0.003) ​0.002 (0.001–0.003) ​0.002 (0.001–0.003) ​ ​
​2040 0.002 (0.001–0.003)

​MM ​
​1040 0.003 (0.002–0.005)​ 0.003 (0.002–0.005) 0.003 (0.002–0.005) ​ ​
​2040 0.002 (0.002–0.005)​

​KL ​
​1020 0.004 (0.001–0.006) ​ ​
​3330 0.004 (0.001–0.006)

​KM ​
​1020 0.004 (0.001–0.006) ​ ​
​3330 0.004 (0.001–0.006)

​SL ​
​1030 ​0.002 (0.001–0.003) ​0.002 (0.001–0.003) ​0.002 (0.001–0.003) ​ ​ ​ ​ ​
​S30T ​0.002 (0.001–0.003) ​0.002 (0.001–0.003) ​0.002 (0.001–0.003)


​SM ​ ​
​1030 ​0.003 (0.002–0.005) ​0.003 (0.002–0.005) ​0.003 (0.002–0.005)
​S30T ​0.003 (0.002–0.005) ​0.003 (0.002–0.005) ​0.003 (0.002–0.005)
​S40T ​0.003 (0.002–0.005) ​0.003 (0.002–0.005) ​​
​NL ​H13A 0.005 (0.001–0.01)

 
Note: Maximum hex for seat size K is limited because of cutter body.

Recommendation for diameter 63 mm (2.5 inch) cutters

  • PL is the 1st choice geometry in ISO P applications

  • Use maximum 70% of the recommended hex value when using the PM geometry

  • PH geometry is not recommended

Cutting data

Metric

Geometry Grade vc m/min ​ ​ ​ ​ ​
Diameter <160 mm
ISO P ISO M ISO K ISO N ISO S ISO H
PL 1030 220 (270–180) 220 (290–180)        
4240 220 (270–180)          
PM ​ ​ 1030 220 (270–180)          
​1130 ​220 (270-180)
4240 220 (270–180)          
​PH ​1130 ​220 (270–180)
​4240 ​220 (270–180)
ML 1040 180 (200–160) 180 (225–160)     30 (60–20)  
2040   230 (275–210)        
MM 1040 180 (200–160) 180 (225–160)     30 (60–20)  
2040   230 (275–210)        
KL 1020     190 (205–165)      
3330     220 (250–190)      
​KM ​1020 ​190 (205-165)
​3330 ​220 (250-190)
SL 1030   220 (270–180)     35 (80–30) 30 (45–25)
S30T   240 (310–220)     40 (80–30) 40 (45–30)
SM ​ ​ 1030   220 (270–180)     35 (80–30) 30 (45–25)
S30T   240 (310–220)     40 (80–30) 40 (45–30)
S40T   210 (275–190)     35 (80–30)  
NL H13A     985 (1030–945)    

 

Geometry Grade vc m/min ​ ​ ​
Diameter >160 mm ​ ​ ​
ISO P ISO M ISO K ISO N
PL 1030 180 (270–180) 180 (290–180)    
4240 180 (270–180)      
PM 1030 180 (270–180)      
​1130 ​180 (270–180)
4240 180 (270–180)      
​PH ​1130 ​180 (270–180)
​4240 ​180 (270–180)
ML 1040 160 (200–160) 160 (225–160)    
2040   210 (275–210)    
MM 1040 160 (200–160) 160 (225–160)    
2040   210 (275–210)    
KL 1020     160 (205–165)  
3330     190 (250–190)  
​KM ​1020 ​160 (205–165)
​3330 ​190 (250–190)
SL 1030   200 (270–180)    
S30T   210 (310–220)    
SM 1030   200 (270–180)    
S30T   210 (310–220)    
S40T   190 (275–190)    
NL H13A     985 (1030–945)

Note:
For Inconel, recommended vc = 25 (45–20) m/min
For titanium, recommended vc = 35 (80–30) m/min  

Inch

Geometry Grade vc ft/min ​ ​ ​ ​ ​
Diameter <6 inch
ISO P ISO M ISO K ISO N ISO S ISO H
PL 1030 720 (880–590) 220 (290–180)        
4240 720 (880–590)          
PM 1030 720 (880–590)          
4240 720 (880–590)          
​PH ​1130 ​720 (880-590)
​4240 ​720 (880-590)
ML 1040 590 (655–525) 590 (655–525)     95 (195–65)  
2040   590 (655–525)        
MM 1040 590 (655–525) 590 (655–525)     95 (195–65)  
2040   755 (900–685)        
KL 1020     620 (670–540)      
3330     720 (885–590)      
​KM ​620 (670-540)
​720 (820-620)
SL 1030   720 (885–590)     115 (260–65) 95 (145–80)
S30T   785 (1015–720)     130 (260–65) 130 (145–95)
SM 1030   720 (885–590)     115 (260–65) 95 (145–80)
S30T   785 (1015–720)     130 (260–65) 130 (145–95)
S40T   685 (900-620)     115 (260–65)  
NL H13A     3230 (3380–3100)    

 

Geometry Grade vc ft/min ​ ​ ​
Diameter >6 inch ​ ​ ​
ISO P ISO M ISO K ISO N
PL 1030 590 (885–590) 590 (950–590)    
4240 590 (885–590)      
PM 1030 590 (885–590)      
1130 590 (885–590)
4240 590 (885–590)      
​PH 1130 590 (885–590)
4240 590 (885–590)
ML 1040 525 (655–525) 525 (735–525)    
2040   685 (900–685)    
MM 1040 525 (655–525) 525 (735–525)    
2040   685 (900–685)    
KL 1020     520 (670–540)  
3330     620 (820–620)  
KM 520 (670–540)
620 (820–620)
SL 1030   655 (885–590)    
S30T   685 (1015–720)    
SM 1030   655 (885–590)    
S30T   685 (1015–720    
S40T   620 (900–620)    
NL H13A     3230 (3380–3100)

Note: 
For Inconel, recommended vc = 80 (145–65) ft/min  
For titanium, recommended vc = 115 (260–100) ft/min

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