Thermoforming Processes - SEKISUI KYDEX

Different Types of Thermoforming

Four primary types of forming processes are used for thermoplastics.

Each process has distinct benefits depending on the size and detail of the part being formed. Thermoforming processes produce uniform and consistent parts with high finish specifications and tight tolerances, similar to what is expected from injection-molded parts. Fine details including undercuts can be achieved using the economical tooling available via thermoforming.

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Vacuum Forming

In the vacuum-forming process, a thermoplastic sheet is heated and pulled against a male or female mold, by pulling a vacuum between the mold and the sheet. This process allows:

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Complex Shapes
Fine surface detail
Tight tolerances

Pressure Forming

In the pressure-forming process, a thermoplastic sheet is heated and pressed against the inside of a female mold. This method uses pressure from above the sheet and pulling a vacuum between the sheet and the mold. This process allows:

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Sharp details
Undercuts
Tight tolerances
In-mold texture

Membrane Pressing

Membrane pressing is used to encase dimensional surfaces in thermoplastics. The thermoplastic sheet is heated and vacuum-formed over the surface. This process allows:

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Forming around top and side surfaces
Complex shapes
Fine details
Sharp or round corners
Embossed brand logos

Twin Sheet Forming

The twin-sheet forming process bonds two thermoplastic sheets together to provide additional structural support and rigidity.

This process allows:

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Improved structural support
Increased component rigidity
Ribbing
Surface details
Undercuts
Integrated hardware
Elimination of secondary assembling

As a proud US manufacturer, SEKISUI KYDEX will be closed July 1 & 4 safely celebrating Independence Day with food, friends, and firework displays!

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