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We are surrounded by articles that are products of a process known as sheet metal bending. Not many of us are aware of what it is and how it functions. If you look at the things inside your homes, I bet at least a couple of them are bending finished products. If you step out and watch your surroundings, the buildings and places of residence that you pass by also use the goods produced by this process.

When we talk about sheet metal bending, we basically refer to the process that converts a sheet metal into a differently-shaped item. It could follow the structure of a letter U, V or any other channel shape.

Bending is classified into three general varieties:

1. Coining

This is the most basic sheet metal bending type used by engineers and metalworkers. It needs a few materials for example die and punch. It is often viewed as precision stamping because of the very detailed and mindful attitude you have to possess in order to make a finished product that is of high quality.

Coining, which is kind of cold working procedure, is used in the manufacture of coins. These kind of coins are small, but if you look carefully, you would see the very fine pictures and texts on them. Badges, medals and buttons are some of the other products created through this procedure.

2. Air bending

This is done by allowing the punch and the workpiece touch but not too low as to strike the bottom. Once you release the punch, the workpiece finishes with not that much of a bent. This is because of a thing known as spring-back, which is generally between 5 and 10 degrees.

3. Bottom bending

This particular form of sheet metal bending has a few similar characteristics with coining and air bending. In this case, the punch presses the workpiece down until it touches the bottom of the die. This movement will cause a little spring-back angle.

There are several types of tools and equipment used when carrying out this operation. The most common of them all can be the machine presses, bending brakes, and brake presses. These devices come in various shapes, sizes, and rates. Expect to see some of them having the simplest features that are ideal for simple and basic sheet metal bending operation. However, those that possess high-end, complex and modern features are also available on the market to large industries and factories that require huge quantities of products manufactured in a certain period of time.

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