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The Fundamentals of Metalworking (PDF)

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Flow curve<br />

True stress<br />

Flow curve<br />

0 10 20 30 40 50<br />

Reduction <strong>of</strong> area by drawing, %<br />

Flow curve constructed from stressstrain<br />

curves after different amounts <strong>of</strong><br />

reduction.<br />

Temperature Flow stress<br />

Suranaree University <strong>of</strong> Technology Tapany Udomphol<br />

Jan-Mar 2007<br />

True stress, σ<br />

True strain, ε<br />

ε f<br />

σ y<br />

Method <strong>of</strong> using average flow<br />

stress to compensate for strain<br />

hardening.

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