The conventional auto tailgate is made of sheet metal stamping parts. Its defects are that the development term is long, there are many die molds, and the product weight is heavy, so it is not good to the development direction of lightweight auto . Because the metal tailgate needs to be assembled after welding, some assembly accessories must be installed after the metal tailgate is assembled, resulting in a long assembly line and many stations in the main engine plant, It is not conducive to the demand for modular supply.
With the development of automobile manufacturing technology to modularization, integration and lightweight, auto plastic tailgate will also become an important direction of body parts modularization of major auto manufacturers.