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Fantom [35]
3 years ago
6

The melting point of Pb (lead) is 327°C, is the processing at 20°C hot working or cold working?

Engineering
1 answer:
bonufazy [111]3 years ago
6 0

Answer:

Explained

Explanation:

Cold working: It is plastic deformation of material at temperature below   recrystallization temperature. whereas hot working is deforming material above the recrystallization temperature.

Given melting point temp of lead is 327° C and lead recrystallizes at about

0.3 to 0.5 times melting temperature which will be higher that 20°C. Hence we can conclude that at 20°C lead will under go cold working only.

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