Camshafts are usually made of which materials?

Camshafts are typically constructed from materials that offer the necessary strength and durability to withstand the high-stress conditions of an engine. Cast iron and aluminum are common materials for camshafts because they can be machined precisely to ensure proper operation within the engine. Cast iron provides excellent wear resistance and is favorable for its ability to absorb vibration, while aluminum is lightweight and helps improve engine efficiency.

In this context, plastic and rubber are not suitable for camshafts due to their lack of structural integrity at high temperatures and stress. Composites may be used in specific applications, but they do not generally represent the standard materials for camshafts found in most engines. Copper and brass do not have the necessary properties for this application, as they are softer metals that would not hold up under the extreme conditions inside an engine. Thus, the construction of camshafts primarily revolves around using durable materials such as aluminum and cast iron.