Metal bending technology has gone through a continuous progress in the past few years. It has broadened the horizons of manufacturing companies and has catapulted the metal bending techniques to greater heights. There have been significant changes in the bending techniques from basic press bending to innovative and advanced induction bending.
Even the bending materials are much better and improved. Most of the bending methods may overlap in quality and capacity but each of the methods has something new and unique that deserves customer’s attention. Choosing the right technique is not an easy task but still the main points taken into consideration are quantity and quality.
Some of the most popular methods for metal bending are:
It is the oldest of bending methods and is still in use for various different jobs. In this method, the bending work is executed by two tools which hold the material and the third tool pressurizes the material. After hitting/ramming the material multiple times, it can be crafted into different radii. This process can cause substantial distortion on tighter radii.
Rotary Draw Bending
It is a process which is done through wrapping the material around a die. It has its own limitations and one should have a separate die for each pipe/radius combination in order to bend 1 inch and 2 inch pipe to both 3 inches and 6 inches radius. Companies with a wide collection of dies are able to fabricate material into a wide range of radii. In this technique, you must be cautioned about orality while bending tubes within thin walls. Most of the fabricators suggest a thicker walled pipe while using rotary draw bending technique.
This technique is quite similar to the rotary draw bending technique. It involves stuffing of pieces with hardened steel to prevent distortion. This process is done with hollow pieces only, especially rectangular tube and thin wall pipe and these have the propensity to collapse.
Three Roller Bending
This process of metal bending allows for an endless range of radii. To form the material, it engages three rollers in this technique. One center roll is used as a fulcrum . The material passes between the paired back rollers and this central roll. The tightening of the radii of the roll depends on the kind of roll bender used to increase the pressure on the material.
In this process, one point of material is heated with the help of an induction coil. Afterwards, the material is molded to a preferred radius by a pivot arm. This process is time consuming but produces low-distortion bends in the material which standard cold bending deforms.