a Selection of optimum inserts for turning

The following diagrams show for each work material, the optimal combination of suitable grades and chip breakers

for each application area in turning.

ACUTTING CONDITIONSCUTTING AREA
yy
Continuous CuttingF

Stable Cutting Constant Depth of Cut Finish Cutting

Pre-Machined L Securely Clamped Component Light Cutting General Cutting M Medium Cutting

R

Heavy Interrupted Cutting Rough Cutting

Unstable Cutting Irregular Depth of Cut H

Low Clamping Rigidity Heavy Cutting

Finish CuttingLight Cutting
FYSY
VP25NVP25N
FYSY
PMild Steel
MP3025MP3025.315
.276
.236
.187FY
FPLP.157
.118SY
.079

MC6025 MC6025 .039

0 .004 .012 .020 .028 Feed (IPR) Mild Steel vc : Cutting speed (EX. : ASTM A283, AISI 1010) f : Feed

NEGATIVE INSERTS ap : Depth of cut.

Cutting AreaChipBreakerGradevc(SFM) 1st Recomf(IPR) mendationap(inch)
Stbl CttiFFYVP25N935─1460.004─.010.008─.032
ae ungLSYVP25N850─1330.007─.013.020─.048
Gnrl CttinFFYMP3025900─1380.004─.010.008─.032
eea ugLSYMP3025820─1260.007─.013.020─.048
Utbl CttiFFPMC60251030─1670.003─.010.004─.040
nsae ungLLPMC6025935─1530.004─.016.012─.079