Squeeze casting can make the liquid metal form, solidify or accompanied by a small amount of plastic deformation under high pressure, eliminate the defects such as shrinkage cavity and porosity in the casting, and make the casting structure compact. It can greatly improve the mechanical properties of the casting through heat treatment, which is close to or equivalent to the level of forging, and has a good application prospect.
With the development of new energy vehicles and the requirements of automobile lightweight, squeeze casting technology is more and more widely used in automobile structural parts, such as control arm, connecting rod, engine support, wheel side support and other chassis parts are made of aluminum alloy, which replaces some forging to produce high-performance complex structural parts, and replaces low-pressure casting Differential pressure casting and metal mold gravity casting produce structural parts with high reliability requirements.
In the automobile manufacturing industry, it has become a consensus to use aluminum alloy to replace some cast iron and cast steel. With the development of new energy vehicles and the need of automobile lightweight, squeeze casting technology will be more and more widely used in automobile structural parts.