Die life of different materials

Introduction:
Die life is an important aspect in manufacturing industry. It refers to the duration for which a die can be used without any damage or wear and tear. Different materials have different die life, which is influenced by various factors such as material properties, manufacturing process and usage conditions. In this question, we need to arrange the given materials in increasing order of their die life.

Materials:
The given materials are brass, cast iron, zinc and aluminium.

Arrangement:
The correct arrangement of the materials in increasing order of their die life is:

Cast iron, brass, aluminium and zinc.

Explanation:
Cast iron has the highest die life among the given materials because of its high hardness, wear resistance and thermal conductivity. It is commonly used for making dies for high-volume production of components like automotive parts, pipes, valves and fittings.

Brass has a moderate die life due to its good mechanical properties, corrosion resistance and ease of machining. It is often used for making dies for low-volume production of components like jewellery, musical instruments and decorative items.

Aluminium has a lower die life compared to cast iron and brass because of its low hardness, poor wear resistance and high thermal expansion. It is suitable for making dies for low-stress applications like sheet metal forming, extrusion and forging.

Zinc has the lowest die life among the given materials because of its low hardness, low melting point and high thermal expansion. It is mainly used for making dies for low-cost, low-precision applications like die-casting of toys, hardware and household items.

Conclusion:
In summary, the arrangement of the given materials in increasing order of their die life is cast iron, brass, aluminium and zinc. This information can help manufacturers to select the appropriate material for making dies based on their specific requirements and budget.