Thermoforming mold is a tool used in the thermoforming process to shape heated plastic material into a specific form. The mold is typically made of aluminum or steel and is designed to match the shape and size of the final product.
Positive and negative pressure thermoforming mold
Vacuum Forming mould
Thermoforming molds come in various shapes and sizes, depending on the product being produced. The mold may consist of a single piece, or it may be a combination of multiple pieces that fit together to create the desired shape. In addition, the mold can have various features, such as texture, ribbing, and undercuts, that can be used to create specific design elements in the final product.
The thermoforming process involves heating a sheet of plastic material until it becomes pliable, then placing it over the mold and using a vacuum or pressure to form the material into the mold shape. Once the material has cooled and solidified, it is removed from the mold, and the excess material is trimmed away.
Thermoforming molds are essential to the thermoforming process, and their design is critical to producing high-quality thermoformed products. The mold’s design must consider factors such as material properties, wall thickness, and part geometry to ensure that the final product is consistent and meets the required specifications.
A positive pressure thermoforming mold uses compressed air or another gas to apply pressure to the heated plastic sheet, forcing it into the mold cavity. This pressure is used to create detailed and intricate parts with precise features and fine details. Positive pressure thermoforming is often used to create parts with deep draws, sharp corners, or complex geometries.
On the other hand, a negative pressure thermoforming mold, also known as a vacuum mold, uses a vacuum or suction force to pull the heated plastic sheet down onto the mold surface. The vacuum holds the plastic sheet in place as it cools, forming it into the mold shape. Negative pressure thermoforming is used to create parts with shallow or flat features, such as trays or blister packaging.
In both positive and negative pressure thermoforming molds, the design and construction of the mold are crucial to the success of the process. The mold must be accurately designed and constructed to produce the desired part geometry and surface finish, as well as accommodate the specific properties of the plastic material being used.