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These are necessary to maintain the vehicle body’s critical dimensions and structural strength.Cat S and Cat N cars are insurance write-offs. To carry out the vehicle body’s structural repairs, you need specialized equipment such as the repair bench, five-dimensional fixture sets, a pulling arm, and a three-dimensional electronic laser measuring system. Thus, it may make the vehicle unsafe and underperform. In such cases, carrying out repairs of the roof may reduce its structural strength to a large extent. In such situations, they recommend replacing the complete body shell if it is beyond repair. However, some manufacturers do not recommend repairing the car roof in severe damage due to an accident. Therefore, only trained and skilled mechanics could precisely carry out the car pillar’s modifications. Manufacturers provide specifications to maintain the critical dimensions and detailed procedures while carrying out any repairs on the vehicle body, especially the pillars. Hence, one needs to take care while repairing any part of the car pillar.
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Any unauthorized modifications to the pillars could jeopardize the vehicle body’s structural strength and, thereby, the safety of the passengers. So, repairing the vehicle’s body is a very critical process. The pillars provide structural strength to the vehicle’s body. Like the house, the vehicle pillars carry the roof’s weight and support the vehicle’s body structure. However, manufacturers provide the D pillar mainly for the Station Wagons or Multi-Purpose Vehicles. Technically, the D pillar is the rearmost pillar of the vehicle’s body. However, the C pillar is the rearmost pillar in sedans and hatchbacks. Thus, it created a new vehicle body type and thereby broadening the definition of Hardtops. General Motors later started providing B pillars in Hardtops. However, they have limited structural support and strength. The cars without B pillars increase passengers’ visibility. These include sedans, coupes, and wagons/MPVs. The manufacturers offer the Hardtops in nearly all four-door body styles. The carmakers call those cars ‘Hardtops.’ Instead, the vehicle specification shows the rearmost pillar as the C pillar. Hence, some vehicles do not have a B Pillar. Manufacturers skipped the B pillar while naming other pillars. This pillar provides structural support to the vehicle’s roof. Manufacturers weld it to the roof panel on top and the vehicle’s floor pan at the bottom. Manufacturers make the B pillar or the center pillar of steel in vehicles. It is because the front door closes on the B pillar while the rear door hinges on it. B Pillar:įurthermore, B Pillar is the most complex component/structure of the vehicle body. And, thus it improves the driver’s vision. So, some makers make the A-pillar slimmer and chamfered to decrease the blind spots. In addition, the blind spot occurs due to the blocking of the driver’s vision by the A-pillar. However, the vehicle’s roof and doors are the most expensive parts to carry out repairs.
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Thus, it is to make it withstand a crash and meet safety standards. Manufacturers use strong steel alloys to make the A-pillar. Manufacturers provide the A-pillars on both sides of the vehicle. Hence, the naming of pillars is important while rescuing the passengers trapped in accident-damaged vehicles. For example, rescue teams communicate the names of pillars (A/B/C/D) while cutting the pillars with cutters. In these cases, manufacturers name them B1, B2, B3 & so on while moving from front to rear. Is it a mere co-incidence or designer’s creativity? For example, if the vehicle has a stretched body structure with additional doors, such as a limousine, it gets more than one B pillars. The other pillars resemble “B,” “C,” and “D” letters, respectively. The A-pillar resembles the shape of the alphabet “A.” A-Pillar of an estate/station wagon A-Pillar of a Cab/Ute The naming system adopted for the pillars may have possibly been originated from their shapes as seen from sides.
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The vehicle designers sometimes refer to the car pillars as ‘posts.’ Why call them the A/B/C/D Pillar? They name the car pillars the A-pillar, B, C, and D pillars. Vehicle Pillarsįurthermore, the manufacturers identify the car pillars from the side while moving from front to rear of the vehicle. However, the A-pillar and the D pillar stand inclined in some vehicles for aerodynamic reasons. The car pillar in the vehicle stands in the near-vertical position, which supports the vehicle’s roof. It has similar components, including the roof, pillars, and floor. The structure of an automobile body is just the same as that of a house.