Have you ever wondered how intricate automobile parts like starter motor brackets, flywheel, solenoid valves, and the likes are produced?

Or, perhaps, the massive machine and equipment parts?

How about those Hot Wheels toy car collections that kids love? The answer: die casting.

Die casting is an industrial manufacturing process that uses tool dies, which produce metal parts that are too geometrically complex to be produced by any other means.

This process makes use of molten alloy or metal injected into a die at high pressure.

Die Casting Process

In the process of die casting, the reusable steel molds are being preheated and eventually coated with a die-release agent to protect the dies’ surfaces and lubricate them prior to each use. Molten metals are pre-measured and injected into these dies using very high pressure.

After forming, the newly-formed metal cast will be removed from the dies. This cycle is continuously done over and over whenever a die cools.

This high-pressure process yields dense, fine-grain surface structure with a wide range of both physical and mechanical characteristics like fatigue strength.

Read more: Die Casting 101: Learn More About its Process and Advantages