Chapter 3 - Rolling of metals
Chapter 3 - Rolling of metals
Chapter 3 - Rolling of metals
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L<br />
L<br />
p<br />
p<br />
≈<br />
R∆h<br />
P r is the radial force, with a vertical<br />
component P (rolling load - the load with<br />
which the rolls press against the metal).<br />
The specific roll pressure, p, is the rolling<br />
load divided by the contact area.<br />
P<br />
p = …Eq.3<br />
bL<br />
Where b is the width <strong>of</strong> the sheet.<br />
L p is the projected length <strong>of</strong> the arc <strong>of</strong> contact.<br />
( h h )<br />
⎡<br />
R(<br />
h h ) o −<br />
= ⎢ o − f −<br />
⎢⎣<br />
4<br />
f<br />
2<br />
⎤<br />
⎥<br />
⎥⎦<br />
1 2<br />
≈<br />
p<br />
[ R(<br />
h − h ) ]<br />
o<br />
f<br />
1 2<br />
…Eq.4<br />
Suranaree University <strong>of</strong> Technology Tapany Udomphol<br />
Jan-Mar 2007
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