4. Implementation of the main processes
4.1 Comparison of hot and cold forming
The forming temperatureT is a fundamental parameter, as it determines the value of the plastic flow stress (figure 18 ) and the ductility of the metal. A distinction is made between cold forming and hot forming. It should be noted that these terms have two meanings which may not coincide. In forming shops, cold forming means shaping a metal initially at 20°C; hot forming means preheating the metal before shaping to the highest possible temperature, i.e. to obtain a product with acceptable properties.
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Implementation of the main processes
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"Metal forming and foundry"
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