Local thin-wall injection molding process and local thin-wall injection molded part

The invention provides a local thin-wall injection molding process and a local thin-wall injection molded part, the thin-wall injection molding process adopts an injection mold, the injection mold comprises an upper mold and a lower mold, an insert corresponds to a thin-wall molding area, and the molding process comprises the following steps: closing the upper mold and the lower mold to form a product cavity, the thickness of the product cavity corresponding to the insert is greater than that of a product formed by the product cavity corresponding to the insert; injecting a preset amount of injection molding raw material into the product cavity; and the insert is driven to move so that the thickness of the product cavity corresponding to the insert can be equal to the thickness of the formed product. The local thin-wall injection molding process is equivalent to adopting a scheme of combining injection molding and die casting, and the mold cavity corresponding to the thin-wall molding area of the mold can be