Ch15 Metal Extrusion And Drawing Processes
Ch15 Metal Extrusion And Drawing Processes
Ch15 Metal Extrusion And Drawing Processes
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Force, F, depends on:<br />
<strong>Extrusion</strong> Force<br />
Strength Strength of billet material<br />
material<br />
<strong>Extrusion</strong> Ratio, R, A Ao/A /Af Friction between billet and chamber & die surfaces<br />
Process variables: temperature, velocity<br />
F = A A0k k ln(A ln(A0/A /Af) Eq. 15.1<br />
The <strong>Extrusion</strong> constant, k, is determined<br />
experimentally, p y, see Figure g<br />
15.5
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