Injection Mold for Car Rear Bumper
Customized car rear bumper mold
The front and rear ends of the car are equipped with bumpers, which not only serve a decorative function, but more importantly, are safety devices that absorb and mitigate external impact forces, protect the body, and ensure the safety of passengers.
The geometric shape of the bumper should not only consider its consistency with the overall vehicle shape to ensure aesthetics, but also comply with mechanical and energy absorption characteristics to ensure vibration absorption and buffering during impact. When designing injection molding drawings for car rear bumpers and making injection molds for car rear bumpers, extreme attention should be paid
Injection Mold for Car Rear Bumper
Bumpers have the functions of safety protection, vehicle decoration, and improving the aerodynamic characteristics of vehicles. From a safety perspective, cars can provide cushioning and protect the front and rear bodies in the event of low-speed collisions; It can play a certain role in protecting pedestrians in the event of accidents. From the appearance, it has decorative properties and has become an important component for decorating the exterior of a sedan; At the same time, car bumpers also have a certain aerodynamic effect.
Car bumpers, including front and rear bumpers, mainly use toughened (modified) polypropylene (PP) material as injection molding material. This material has a high melting point, heat resistance, and high density (0.90g/cm ³), making it currently the lightest universal plastic.
Injection Mold for Car Rear Bumper
In addition, the structure of a car bumper usually consists of an outer panel, cushioning material, and crossbeam. The outer panel and cushioning material are made of plastic, while the crossbeam is stamped into a U-shaped groove using cold-rolled sheet with a thickness of about 1.5mm, which is fixed to the frame longitudinal beam with screws and can be removed at any time. This design not only serves a decorative purpose, but more importantly, as a safety device that absorbs and reduces external impact forces, protecting the body and passengers' safety
