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Vacuum Forming

Vacuum Forming is a simplified version of thermoforming, where a sheet of plastic is heated to a forming temperature, stretched onto a single-surface mold, and forced against the mold by a vacuum. This process can be used to form plastic into permanent objects such as turnpike signs and protective covers. Normally draft angles are present in the design of the mold (a recom-mended minimum of 3°) to ease removal of the formed plastic part from the mold. Relatively deep parts can be formed if the formable sheet is mechanically or pneumatically stretched prior to bringing it into contact with the mold surface and applying vacuum. Suitable materials for use in vacuum forming are conventionally thermoplastics. The most common and easiest to use thermoplastic is high impact polystyrene sheeting (HIPS). This is molded around a wood, struc-tural foam or cast or machined aluminum mold, and can form to almost any shape. This high impact material is hygienic and capable of retaining heat and its shape when warm water is ap-plied and is commonly used to package taste and odor sensitive products. Vacuum forming is also appropriate for transparent materials such as acrylic, which are widely used in applications for aerospace such as passenger cabin window canopies for military fixed wing aircraft and com-partments for rotary wing aircraft. Vacuum forming is often used in low-level technology classes for an easy way to mold.

The strength of Haizol for Vacuum Forming
We are partnering with the best supplier in the latest Vacuum Forming processes with proprie-tary technology to deliver high quality, low cost custom made machined components from Asia. The whole ordering process is transparent and you will get update of your order with our Order Monitoring System.