Processing Metals

Front

Impact of cold working on metal strength

Back

Cold working increases the strength and hardness of the metal.

Front

Term for increased strength due to cold working

Back

Work/strain hardening

Front

Graph showing the relationship between tensile strength, hardness, and ductility

Back

Graph depicting changes in tensile strength, hardness, and ductility with reduction in thickness.

Front

Work hardening in cold working

Back

Can lead to limitations such as surface cracks.

Front

Forces required in metalworking

Back

Cold working may require high forces.

Front

Risks of excessive work hardening

Back

Can lead to surface cracks in cold working.

Front

Effect of temperature on grain size

Back

Higher temperatures generally increase grain size.

Front

Importance of recrystallisation

Back

Essential for controlling material properties like hardness and grain size.

Front

Crystal structure in sand casting

Back

Sand casting results in larger, equi-axed crystals due to slow cooling.

Front

Deformation of metal by compressive forces at recrystallisation temperatures.

Back

Achieves a fine uniform grain structure, e.g., through rolling.