Final answer:
A keyway is a slot or groove on a shaft or hub that prevents relative rotation. It is commonly constructed using a milling machine or broaching method, and a key is inserted to provide a secure connection.
Step-by-step explanation:
A keyway is a slot or groove that is machined into a shaft or hub to provide a positive connection for transmitting torque. Keyways are commonly used in mechanical engineering to prevent the relative rotation between the two connected objects.
Keyways can be constructed by a variety of methods, depending on the application and materials involved. The most common method is to use a milling machine to cut a keyway slot into the shaft or hub. Another method is to broach the keyway, which involves pushing a specially shaped cutting tool through the material to create the slot.
Once the keyway is constructed, a key is inserted into the slot to provide a secure connection. The key can be rectangular or square in shape, and it fits snugly into both the shaft and the hub to prevent relative movement.