vacuum snap-back forming

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vacuum forming
A method of forming plastic sheets or films into three-dimensional shapes, in which the plastic sheet is clamped in a frame suspended above a mold, heated until it becomes softened, drawn down into contact with the mold by means of a vacuum, and cooled while in contact with the mold Often used interchangeably with thermoforming
vacuum forming
Molding of thermosetting polymers to specific shapes by heating a thin sheet then pulling it against a pattern with a vacuum
vacuum forming
A method of forming thermoplastics sheet The sheet is clamped in a frame, heated and drawn down onto a mould form by vacuum pressure