Chapter 3 - Rolling of metals

h o
v o
x ’
R
x y
y ’
v f
v o < v f
h f
When h o > h f , we then have v o < v f
The velocity of the sheet must steadily increase
from entrance to exit such that a vertical element
in the sheet remain undistorted.
From Eq.1
bh v =
Suranaree University of Technology Tapany Udomphol
Jan-Mar 2007
o
o
Given that b o = b f
o
Then we have
h =
L
t
bh
o h
v h =
o
o
v
f
o
f
h
f
f
v
L
v o f
= …Eq.2
v
f
h
h
t
f
f