What is the purpose of fusible plugs in aircraft wheels?

Fusible plugs are a critical safety feature in aircraft wheels, specifically designed to melt and relieve pressure in the event of excessive heat buildup. This high-temperature scenario could occur due to various factors, such as prolonged braking or a failure in the brake system, leading to a risk of tire blowout or wheel failure. By melting at predetermined temperatures, fusible plugs create an escape route for the air inside the tire, thereby preventing catastrophic tire failure and enhancing overall safety during flight operations.