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Roll Turning is characterised by difficult
machining conditions wherein, cutting is required
to be carried out in rolls both fresh &
reworked. The requirement of the cutting cutting
edge is to retain its sharpness over an extended
period. It is also required to retain the
toughness of the insert so that there is no
failure of the tool on account of turning
large roll diameters. Today m/s Sumitomo has
developed a wide range of inserts suitable
for this application.
| Motherson CBN for
Roll Turning |
 |
| BN500 shows
better wear resistance for continous
finishing of HINEX, High Speed Steel
Roll with Small D.O.C and Feed Rate. |
| Motherson CBN &
PCD Grades for Carbide Roll Machining |
| Cutting Parameters
for Roll Turning |
| Roll
Material |
Hardness
(Hs) |
Cutting
Conditions |
| V
(m/min[sfm]) |
f
(mm/rev[ipr]) |
d
(mm[inch]) |
| Carbide |
HRA81-86 |
5~30[16~98] |
0.1~0.3[0.004~0.012] |
0.1~0.5[0.004~0.02] |
| HINEX
(High Speed Steel) |
Over
85 |
20~50[66~164] |
0.1~0.3[0.004~0.012] |
0.1~2.5[0.004~0.1] |
| High
Speed Steel |
70~85 |
50~80[164~262] |
0.1~0.4[0.004~0.016] |
0.1~3.0[0.004~0.12] |
| Die
Steel |
HRC55-62 |
60~120[197~394] |
0.1~0.3[0.004~0.012] |
0.1~0.5[0.004~0.02] |
I
R
o
N |
Ni
Grain Iron |
70~85 |
40~100[131~328] |
0.1~0.5[0.004~0.02] |
0.2~3.0[0.008~0.012] |
| High
Chromium Iron |
70~85 |
40~100[131~328] |
0.1~0.5[0.004~0.02] |
0.2~3.0[0.008~0.012] |
| Chilled
Iron |
65~85 |
40~100[131~328] |
0.1~0.5[0.004~0.02] |
0.2~3.0[0.008~0.012] |
| Nodular
Iron |
40~70 |
50~120[164~394] |
0.1~0.5[0.004~0.02] |
0.3~3.0[0.012~0.12] |
| Steel
Based Adamite |
40~60 |
50~130[164~426] |
0.1~0.5[0.004~0.02] |
0.2~3.0[0.008~0.12] |
| (Turning) |
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