Chapter 3 - Rolling of metals
Chapter 3 - Rolling of metals
Chapter 3 - Rolling of metals
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Flatness<br />
• The roll gap must be perfectly parallel to produce sheets/plates<br />
with equal thickness at both ends.<br />
• The rolling speed is very sensitive to flatness. A difference in<br />
elongation <strong>of</strong> one part in 10,000 between different locations in the<br />
sheet can cause waviness.<br />
<strong>Rolling</strong><br />
direction<br />
Perfectly flat<br />
More elongated<br />
along edges<br />
More elongated in<br />
the centre<br />
Suranaree University <strong>of</strong> Technology Jan-Mar 2007<br />
Tapany Udomphol