A manufacturer needs to choose a metal for producing thin, complex-shaped sheets that must withstand bending and hammering without cracking. Which property should the manufacturer prioritize when selecting the material?
Malleability
When selecting a material for manufacturing thin, complex-shaped sheets that have to endure bending and hammering without cracking, the key material property to consider is malleability. Let's explore the reasoning behind this selection:
- Understanding Malleability:
- Malleability refers to the ability of a material to deform under compressive stress, which means it can be formed into thin sheets without breaking.
- This property is crucial for operations such as bending, rolling, or hammering, which require the material to maintain structural integrity while undergoing significant shape changes.
- Comparison with Other Options:
- Ductility:
- While ductility involves the ability of a metal to stretch into a wire, it doesn’t specifically address the requirement for forming sheets under compressive stress.
- Hardness:
- Hardness measures a material's resistance to deformation by surface indentation, not its ability to change shape under stress or pressure.
- Brittleness:
- Brittleness is the tendency of a material to fracture or break without significant deformation. This is the opposite behavior desired for bending and forming operations.
- Ductility:
- Conclusion:
- The priority for the manufacturer should be on malleability to ensure that the metal can form thin, complex shapes without cracking during the manufacturing process.
- Thus, the correct choice is Malleability.
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Important Questions from Metals and Properties
In general, resistivity of an alloy ______ its constituent metals.
In Stress & Strain diagram, stress is always represented on the ______.
Which of the following statements about the resistivity of metals is INCORRECT?
Aluminium in its pure form is not used for engineering work because
The ability of a metal to withstand shock and impact
