Page 10 - MILLING_CATALOG_INCH_2022_P229-P360

When Stepdown Milling Is Performed by Use of Passes, the Depth of Cut Per Pass Should Not
Exceed the Depth of Cut As Recommended in the ISCAR Catalog.
FACE MILLS Depth of Cut of Up to .2” of Cut in Stepdown Milling
Fig. 2- Generated Profile for a Depth
Fig. 1- Generated Profile for a

.011”

90˚
.2”
.6”
93˚ .011”
.4”
90˚
.2”

Starting Feed Per Tooth Fz for S890 Face Mills With Inserts S890 SZMU 08…
Workpiece material Fz, IPT, for grades*
ISO class Typical representstive Hardness, ISCAR mat.
DIN/ISO 513 Description AISI/SAE/ASTM DIN W.-Nr. HB group** IC 5100 IC810 IC808 IC845 IC5400
Non-alloy steel 1020 1.044 130-180 1 .004-.010 .004-.010 .004-.010
260-300
P Alloy steel 4340 1.658 HRC 35-42* 8 9 .004-.007 .004-.007 .004-.007
4340
.004-.007 .004-.007 .004-.007
1.658
High alloy steel H13 1.234 200-220 10 .003-.005 .003-.005 .003-.005
Martensitic s.s 420 1.402 200 12 .003-.005 .003-.005 .003-.005
M Austenitic s.s. 304L 1.431 200 14 .004-.006 .004-.006 .004-.006
.004-.006 .004-.006 .004-.006
1.440
316L
14
140
Class 40
0.6025 (GG25)
K Grey cast iron Class 65-45-12 0.7050 (GGG50) 250 16 .006-.010 .006-.010
Nodular cast iron
.005-.008 .005-.008
200
17
Hard steel H11 1.234 HRC 45-49 38.1 .002-.004 .002-.004 .002-.004
H
and cast iron P20 1.2330 HRC 50-55 38.2 .002-.004 .002-.004 .002-.004
* Quenched and tempered
** ISCAR material group in accordance with VDI 3323 standard

238 ISCAR