Plastic thermoforming is the process of taking a sheet of material that is made from plastic then heating it up until it get to a point that it is pliable and changing its shape to form a three dimensional object, this process is then finished up by trimming to make it become a usable product. This will involve a very long process that must be undertaken in order for it to be called a success. The following are these steps involved in plastic thermoforming.
The fist stage is the designing of the material. This is where the thermoforming process of a plastic will get to start. Most of the time the process is always done for large scale productions. Here the design will be drawn to help come up with the shape of the plastic material. They will then be able to know how big or how small it is from the dimensions. This will then allow them to select the materials that are to be used. If another material other than plastic is used, it is always for aesthetic reasons. Thay will also be able to know the best kind of plastic material that they will use.
The second stage happens to be the most demanding one. First of all it goes through the tooling process. This involves creating the mold that the plastic material is to be heated on. This is what is known as tooling process. Plastic thermoforming uses aluminum molds and other materials may also be used depending on the size and complexity of material. The plastic thermoforming can only begin with the mold at hand. Here the plastic material will get heated to a pliable temperature. Once the material is formed then the mold will be cooled and removed to give you the final plastic material that you wanted in its correct shape. To ensure that the finished product has got zero residual stress, the cooling is usually one under ambient temperatures.
When you are done with all this what you will have left to do is trimming of the final product. It entails working on the last touches on the final product that you’ve got. You will be trimming some parts of the product to help with removing the unwanted parts. This can either be done by hand or some robotic machines can also do it. It will all depend with the size and the number of objects that are to be trimmed. After this then the plastic material will be having the desired shape that it should have. After this then there can be some secondary operations involved if need be and they are namely packaging of the final product and painting.