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What are the advantages and disadvantage of cold working of a metal?
Wiki User
∙ 11y ago
Cold working is the plastic deformation shaping process of metals which is performed below recrystallization temperature. Usually, recrystallization temperature is 40% of melting point temperature (TR=0.40xTM). Advantages are; no oxides on the surface after operation, no hydrogen embrittlement, lower costs for process and equipment, hardening from strain. Disadvantages are; stress in the body therefore mostly it needs recovery process, much more load power necessity for plastic deformation, it becomes brittle depends to cold working percentage.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoAdvantages:
No heating required
Better surface finish, due to no oxidation
Superior dimensional control
Better machinability and reproducibility of parts
Improved strength and hardness properties
Disadvantages:
Production of high levels of detail and complex shapes cannot be achieved
Higher forces required, due to low ductility, low temperature and high hardness
Heavier and more powerful machinery/equipment required
Surface must be clean and without scale
Strain hardening can occur
Residual stresses may be present in the material after processing
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