Cold bending verses thermoforming

Essentially, it is attempting to form a radius on a sheet material without the use of heat. Thermoforming requires heat to form or mold a part into a variety of shapes and sizes. Cold bending involves simply bending the sheet into a radius which would in turn need to be secured by a framework or other means of fastening. You cannot cold bend a sheet without fastening it securely. Otherwise, the sheet will return to its original flat condition.