Your vehicle was literally built from the ground up for your safety. When manufacturers build vehicles, they use a combination of various grades of metal to absorb energy in the event of an accident. Softer metals like mild steel are used on the lower part of the vehicle, and as they build the car upwards
In order to achieve greater fuel efficiency a wide variety of automotive manufacturers are replacing their heavy steel frames for a lightweight aluminum structure and exterior. As the auto repair industry braces itself for this sudden surge of new lightweight vehicles, the demand for aluminum trained technicians who can weld has never been more critical.