PLATE-LIKE-WORKPIECE TWISTING AND RETAINING APPARATUS, PLATE-LIKE-WORKPIECE TWISTING AND RETAINING METHOD, AND PLATE-LIKE-WORKPIECE TWISTING AND SHAPING METHOD

摘要

Provided are a highly versatile device for maintaining twist in panel-shaped workpieces, a method for maintaining twist, and a method for creating twist, which are applicable to integral skins, and by which, through a simple and versatile constitution that does not employ a die member, a panel-shaped workpiece may be freely imparted with a twisted shape and a curved shape. This device (1) for maintaining twist is equipped with: at least two support points (25a) which are capable of contacting one surface of a panel-shaped workpiece (W) within a twisting process area (P); a plurality of pressure points (40) which are capable of contacting the other surface within the same twisting process area (P), and which are situated straddling a line connecting the at least two support points (25a) in plan view of the panel-shaped workpiece (W); and an extension/retraction driving means (support unit (23), pressure unit (33)) for extending and retracting at least the support points (25) and/or the pressure points (40) in the thickness direction of the panel-shaped workpiece (W).