snap-back forming

snap-back forming

[′snap ‚bak ‚fȯrm·iŋ]
(engineering)
A plastic-sheet-forming technique in which an extended, heated, plastic sheet is allowed to contract over a form shaped to the desired final contour.
References in periodicals archive ?
In this study we investigated the influence of initial temperature distribution over the sheet on the part thickness distribution of a vacuum snap-back forming process.
The pre-stretching techniques such as plug-assist and snap-back forming are used to obtain more accurate and uniform thickness distribution of parts thermoformed in complex geometries.
Forming: Standard vacuum, pressure, or snap-back forming can be used.