Body correction refers to the process of "state" of the technical standard "state" when the vehicle is manufactured by a certain external force due to the damaged or damaged parts of the accident. For the word "state", it contains two meanings. "Like" is refers to the visual appearance and shape, the "state" refers to a deeper more abstract concepts, such as the internal molecular structure of metal is in accordance with the original position in order to re arrangement, internal stress is released in full etc., it will be directly related to the vehicle repair function and life expectancy. Structure is refers to the main support and bearing capacity of members in the body, is the installed base of body parts, common in the beam, beams, posts and the lower beam position. These components usually have very high strength, combined with the structure of the box section, so the repair should take some means and measures, the use of reasonable process to repair.
As far as possible in place repair process
When the whole body is correct, it should be as far as possible to take place repair method. So when the pull pull, can effectively be around some of the deformation parts by the way, "with" out, but also due to less assembly and disassembly of components and save a lot of time. Figure 1a is a subject to damage the front bumper framework, the component is a closed type of box section members, it is connected together through a screw and a front longitudinal beam. Often, a lot of sheet metal repair technician will be removed after the skeleton correction, so that is not scientific. Front bumper framework during the impact, the transmission of the impact force will cause deformation of beam front. Skeleton removed no suitable fixing is difficult to take a moderate correction force to repair, in addition to complete the repair of the skeleton to the front rail repair. So the better method is to be in place to repair, using puller A and impact in the opposite direction to ease the force applied on deformation of parts, and then use a proper crowbar, from the edge of the opening part of the extended into the dressing on the side of the skeleton of some depression part, this will get very good effect.
Of course, many of the non load bearing body structure can also be used in this way to fix the method. Non bearing body is the traditional beam type body, frame is an independent component, the material is generally thicker, is by "U" - type steel or two "U" type steel reverse by welding to form a box members, which has very high strength. Generally can be divided into frame type frame and trapezoidal frame and other types, through the bolt and the body connected together. When the frame is subjected to the impact deformation, the usual repair method is to separate the cab and the cargo compartment and then separate the frame. In fact, even if the frame is difficult to have a good anchor method, so the deformation of some types of damage can be carried out in place using the method of figure 2A. Frame by the impact of lateral bending, will be a sufficient strength of I-steel rail steel on the side of the vehicle, the horse stool or block to the pad and the frame level, the use of chain steel I-beam and frame of the front and rear parts of fixed bending parts by hydraulic top applied thrust method for correction.
At the same time, it can be repaired by the method of graph 2B. In most cases, this kind of bending will appear from the beam part of the frame, which will result in the deformation of both sides of the beam. Once on both sides of the beam are bending and no beam in the middle, should use a separate hydraulic top of the bending position of both sides of the support to the original width, so thrust is applied in it as a beam to the force is transmitted to the other side, to facilitate bilateral synchronous repair. For upper and lower curved girders can also use this method, correction directly to the I-beam in the lower part of the beam and the same repair method can be. But in the correction should be as far as possible to make steel I-beam and frame close to, in order to obtain a stable corrective force, use chain and crossbeam is fixed should also together with the appropriate block of wood or iron to prevent deformation.