Aluminium, and the many products made from it can be easily spotted all around us, whether we are sitting in our home, travelling on the roads, shopping at a supermarket or aluminium seamless pipe working in a factory. Sheets and rods of metals are bent using numerous industrial methods in order to shape the aluminium in a way that it is required.
The tin cans that we see around us, the aluminium winding tubes along the stairs in homes and offices, the automotive parts that are fit in the automobiles are only few of the examples of products that are produced from aluminium after it has been bent using those various bending techniques.
The different aluminium bending techniques differ from each other in the method, cost effectiveness, fuel efficiency and of course the results that they yield. Depending upon these factors, each of these methods is used on small or large scale in the industries or even at auto repair workshops.
Induction bending, or hot bending, is perhaps one of the most common aluminium bending methods. It is also one of the most cost effective and fuel efficient ones. During this method a heated coil is used to elevate the temperature of the aluminium rod. However the whole rod is not heated; instead, the area from where the bend has to be created is heated and when the temperature has been adequately raised, pressure is applied to create a neat bend.
Three Roll Bending
As the name suggests, in this method, three roll benders are used amongst which only the central bender moves at a gradual pace to create the bend. It depresses the aluminium in areas where the bend has to be created to a desired radius.
Wrap and Mandrel Bending
These two techniques of bending aluminium are used when the bend has to be created around a tight radius. It is an extremely technical method because care has to be taken that the section does not buckle. In wrap bending, a wrap goes around the section that has to be bent and in mandrel bending, a mandrel is placed inside to form the bend.