CORRECTION FACTORS

Correction factors for specific type of cutter and operation C VcO

x.v
Face mills withKAPR 45° – 60° and negative inserts (SHN06C,SHN09C,CHN09,…)1.151.000.85
Face mills withKAPR45° and positive inserts (SOE06Z,SOE09Z,SOD05,...)1.151.000.85
Shoulder mills withKAPR90° (SAD07D,SAD11E,SAD16E,SLN12,SLN16..)1.101.000.90
Copy face mills (SRC10 - SRC20,SRD05 - SRD16,…)1.101.000.90
Copy end mills (K2-PPH,K2-SLC,K2-SRC,K3-CXP…)1.101.000.90
Disc mills (S90CN(XN),S90SN...) l1.101.000.90
Shoulder mills with extended flute J(T)-CSD12X,J(T)-SAD11E,J(T)-SAD16E...)1.251.000.80
Face mills for heavy duty (FSB22X,SPN13..)1.301.000.85
Shoulder mills for heavy duty (FTB27X..)1.251.000.85

Correction factors for required durability C VcT

minutes152030456090120
General machining operations (fine finishingup to roughing)1.231.131.000.890.810.72
Heavy machining operations (heavyroughing)1.231.131.000.890.81

Additional correction factors C VcA

Machining environmentCVcA
Condition of the work-material(hard skin due to forgingor casting)0.70
Unstable machining conditions0.85
Common machining conditions1.00
Stable machining conditions1.20

Correction factors for cutting speed when face and shoulder milling with <100% radial immersion C VcRCT

ae DC5 %10 %15 %20 %25 %30 %40 %50 %60 %70 %75 %80 %90 %100 %
x.v1.481.351.271.221.191.161.111.081.051.031.001.001.001.00
ae DC rrection5 % i factors t10 % i o compen15 % i sate for c20 % i hip-thinn25 % i ing when30 % i face and40 % i shoulder50 % i milling w60 % i ith70 % i % radial im75 % i mersion80 % i CfzRCT90 %100 %
x.f2.201.601.351.201.100.950.850.750.850.951.001.001.001.00
x.f0.640.640.640.640.640.650.650.670.680.710.720.740.791.00

Resulting corrected cutting speed vcc kvG - coefficient of used material

vcc = vc . kvG . Cvco . CvcT . CvcA . CvcRTC . CfzRTC vc - starting speed from catalogue page