There might not be an obvious correlation, but metal fabrication is important in the $64 billion car repair industry. In a car’s engine alone, a maze of tubes and pipes exist. These pipes were made from a metal fabrication technique called pipe bending.
There are different ways a fabricator can roll and bend these pipes. Knowing the right technique and tool to accomplish this is vital in any automotive repair business, so they could understand how to not only fix vehicles but to restore them.
Large construction pieces use roll bending. The rolled metal using this technique has a huge radius. Roll bending uses rollers in a pyramid-type configuration like the Baileigh roller, according to JMC Equipment. These are available for sale in automotive equipment shops.
Muffler shops usually use this type of tube bending. It’s one of the oldest, simplest, and least expensive methods to bend tubes. This technique uses a hydraulically-driven ram that forces a pipe against pivot blocks.
Fabricators use this technique to form symmetrical bends in one tube, like the towel racks or indoor water pipes. Compression bending uses a compression die to bend the pipe around a stationary bend die.
Rotary Draw Bending
To bend tubes with a small or tight radius, fabricators use rotary draw bending. It is needed to ensure that the bending done is precise. Rotary draw bending uses a pressure die that holds the straight section of a tube, and a clamp die that rotates the tube around a circular bend die.
The tube bending technology has evolved over the years. Most bending machines are now motorized, unlike the manual and time-consuming techniques before. Still, a basic understanding of these machines is important, so metal workers and auto repair shops can do their jobs well.