Method and device for pressing workpiece

摘要

A pressing device including a platen for pressing a workpiece is provided, which has a pressing plate provided between the platen and the workpiece to press the workpiece instead of the platen when the platen is moved toward the workpiece, and a liquid layer formed between the pressing plate and the platen to transfer a force for pressing the workpiece with a required pressure to the pressing plate from the platen through the liquid layer. The platen is a heating platen heatable to a temperature sufficient to heat the workpiece to a temperature required for pressing, and the liquid layer is filled with heat transfer oil. The pressing plate is metal plate with a mirror finished surfaces.