bag molding

bag molding

[′bag ‚mōld·iŋ] (engineering) A method of molding plastic or plywood-plastic combinations into curved shapes, in which fluid pressure acting through a flexible cover, or bag, presses the material to be molded against a rigid die.

bag molding

The application of pressure on a material during molding so that it takes the shape of a curved, rigid die. The material, contained within the die and a flexible cover, is deformed by changes of pressure within the enclosure.