As highlighted in The Piping Mart blog article, “What is Pressure Forming? Uses and Process,” pressure forming is a specialized plastic thermoforming technique used for creating custom parts for industrial and commercial applications. This process involves heating sheet plastic until it’s pliable and then using pressurized air or gas to mold it into the desired shape between two heated molds. Unlike traditional vacuum forming, pressure forming offers superior precision, greater detail reproduction, and reduced surface imperfections.
Pressure forming is widely used due to its cost-effectiveness and versatility. Its applications range from small medical device components to large covers for appliances and furniture. Additionally, the process is ideal for prototyping, as it allows manufacturers to quickly create multiple iterations of a design without the need for costly tooling.
The pressure forming process involves several steps, starting with the creation of a CAD model for mold design. A prototype mold is often used to test the design before investing in permanent steel molds. Once the plastic is heated and shaped between the molds, the finished product is removed, trimmed, and ready for assembly.
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