Vacuum forming is a technique that has been around for decades and is used in lots of different ways. It’s a pretty simple process, but there are a few things that you need to know to get started. In this article, we will let you know all you need to know about a vacuum forming machine. So continue reading!
What is vacuum forming?
A vacuum forming machine is the procedure where plastic is heated until soft. Then it is drawn onto a mold by means of a vacuum. What happens when the machine starts?
The plastic film or sheet is heated up until it’s pliable and then sucked down over the mold. Once it’s cooled down and the mold opened, a plastic part has been made!
How does vacuum forming work?
A flat piece of plastic film or sheet (called the pre-form) is placed into an oven, where it becomes soft and pliable.
The pre-form rests on top of an open mold, which resembles an inverted version of the desired finished product. A clear cover seals off the top of the mold, creating a chamber between itself and the pre-form.
Air pressure within this chamber then decreases (creating a vacuum), causing atmospheric pressure to press the pre-form against the walls of the mold. Once the soft plastic cools down and reverts to its original shape.
In the world of making 3D objects, vacuum forming is one of the most popular processes. A vacuum forming machine is a simple and effective way to produce plastic parts that are used in a wide range of products.