There are a few options available when fabricating composite parts that use glass fiber or carbon fiber. One method is the manual layup, which sometimes relies on vacuum bagging to help ensure the materials consolidate in a uniform manner. Today, vacuum bagging is something that is used by both DIY and commercial fabricators, which is something you can check here.
What Is the Purpose of Vacuum Bagging?
While anyone can read the Vacuum Bagging Material Market 2021 Complete region wise Strategic Report to learn more about how this process is used, it is also helpful to learn more here. One of the first things to understand is that it is not essential to use vacuum bagging for composite parts. With this in mind, many wonder why it is done at all.
If someone were to create a panel made of carbon fiber for a vehicle, the first step in the process is to create a mold or tool, as it is called in the industry, according to realtimecampaign.com. Then, the carbon fiber fabric is put into the mold and the fabric is covered using epoxy resin. Another layer of fabric is then added, followed by more resin. This pattern continues until the desired thickness is achieved.
Once the desired thickness is achieved, the material will cure. However, if someone wanted to be sure that all air is removed and that the resin has been distributed equally throughout the fabric, they would use vacuum bagging, such as the processes offered by Plastic Materials. The goal of vacuum bagging is to help consolidate the fabric and resin, which ensures the finished product provides more consistent integrity and strength throughout.
During the vacuum bagging application, all air is sucked out of the layup, which ensures a part is created that has minimal defects. The result of this is a more uniform part.
How is Vacuum Bagging Done?
One of the best things about vacuum bagging is how easy it is to do. Once the layup has been done, a person will apply a peel ply layer, which is going to help remove the part down the road. The next is a breather layer, which lets the air escape while absorbing any excess resin that may be present. Once complete, the entire layup is covered by the vacuum bag and sealed.
A hose and pump are connected to suck out the air that’s present while creating some pressure. The layup can be allowed to cure in place or put into an oven. In many commercial settings, the layup in the vacuum bag is placed into an autoclave for the curing process.
Reasons to Use Vacuum Bagging
With vacuum bagging, there are many benefits for some projects. The biggest is consistency. With this method, it is possible to create more consistent parts. Another appealing advantage is quality, as higher quality parts can be made when this process is used, which means that they are also worth more money, making it smart for many industries looking for higher quality parts.