Section N Technical Guide

Recommended First Choice Recommended Running Conditions

Machining Parameters Gen. Purpose .010 ~ .020 IPR .040” ~ .200” D.O.C. CUTTING SPEED SFM

Finishing .002 ~ .012 IPR. .005” ~ .060” D.O.C.

Roughing .015 ~ .026 IPR .200” D.O.C.

Material

Hardness

Grade

T1500A T1500Z T2500Z

700~1200 700~1300 500~1100 700~1400 700~1100 600~1500 350~950 600~950 250~650

700~1100 700~1200 500~1000 700~1200 700~1000 600~1200 350~850 500~850 300~800 500~800 600~1000 600~1100 400~900 700~1100 600~900 600~1200 350~800 450~800 200~700 400~750 300~550 300~650 300~600 500~900 300~500 600~1000 200~450 200~450 150~400 200~400

- - -

N

AC8015P AC810P AC8020P AC8025P AC820P AC8035P AC830P T1500A

600~1000 500~800 600~1000 350~800 450~800 300~800 400~700

<250

ALLOY STEELS– MEDIUM CARBON

-

600~1100 600~1200 400~1000 700~1200 600~1000 600~1200 350~900 500~900 250~650

- - -

T1500Z T2500Z

1340, 1345, 4042, 4047, 4140, 4142, 4145, 4147, 4340, 50B40, 40B44, 5046, 50B46, 5140, 5145, 5147, 81B45,

AC8015P AC810P AC8020P AC8025P AC820P AC8035P AC830P T1500A

600~900

-

250~ 350

600~1000 350~750 400~750 200~700 300~700

8640, 8642, 8645, 86B45, 8740, 8742,

4150, 4161, 50B50, 4060, 50B60, 5150, 5155, 5160, 51B60, 6150, 8650, 8655, 8660, 9254, 9255, 9260

-

300~650 300~800 300~750 600~900 300~600 600~1000 250~500 250~500 150~400 250~400 500~1000 500~900 800~1300 800~1450 600~1200 700~1500 800~1250 600~1400 350~850 450~850 250~650

- - -

T1500Z T2500Z

AC8015P AC810P AC8020P AC8025P AC820P AC8035P AC830P NB150H

500~800 200~500 500~900 150~400 150~400 150~400 150~400

HRc 35~55

- -

- - - - -

NB90S T1500A T1500Z T2500Z

700~1200 700~1300 500~1100 700~1400 700~1150 600~1200 250~750 300~750 200~700 300~750 600~1100 600~1200 400~1000 700~1300 600~1100 600~1200 350~750 500~750 200~700 450~700

AC8015P AC810P AC8020P AC8025P AC820P AC8035P AC830P T1500A

600~1200 600~1000 600~1200 250~700 300~700 200~650 300~650

<250

HIGH CARBON STEELS

-

50100, 51100, 52100, M-50

700~1200 700~1300 500~1100 700~1400 700~1150 600~1300 350~550 550~850 200~500

- - -

T1500Z T2500Z

AC8015P AC810P AC8020P AC8025P AC820P AC8035P AC830P

600~1000 500~800 600~1000 350~650 400~650 200~600 400~600

250~350

-

Chipbreaker Preference

ESE / ESU / ELU EGE / EGU

EME / EMU

N42

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