The car front cross beam is the first cross beam behind the front bumper
Car longitudinal beams:
The longitudinal beams are usually stamped from low-alloy steel plates, and the cross-sectional shape is generally grooved, and some are made into Z-shaped or box-shaped. According to the different forms of automobiles and the requirements of structural layout, the longitudinal beams can be curved in the horizontal plane or the longitudinal plane, as well as equal or non-equal cross-section. The cross beam is not only used to ensure the torsional rigidity of the frame and bear the longitudinal load, but also can support the main components of the car.
Usually trucks have 5-6 beams, sometimes more. The structural feature of the side beam frame is that it is easy to install the cab, the carriage and some special equipment and arrange other assemblies, which is conducive to the modification of variant cars and the development of a variety of vehicles, so it is widely used in trucks and most special vehicles.