Heat staking is commonly used in a variety of industries to join two plastic parts together. Some common use cases for heat staking include:

1. Automotive industry: Heat staking is used to assemble interior and exterior components of vehicles such as door panels, dashboards, and air vents.
2. Consumer electronics industry: Heat staking is used to assemble plastic components of devices such as phones, computers, and other electronic gadgets.
3. Medical industry: Heat staking is used to assemble plastic components of medical devices such as syringes, inhalers, and other medical equipment.
4. Aerospace industry: Heat staking is used to assemble plastic components of aircraft interiors and avionics systems.
5. Packaging industry: Heat staking is used to assemble plastic components of packaging products such as caps, closures, and containers.

Overall, heat staking is a versatile process that can be used in a wide range of industries for various applications.