FLEXIBLE SHEET STRETCHING FORMING APPARATUS WITH MULTIPLE FORMING PUNCHES AND STRETCHING FORMING METHOD USING THE SAME

摘要

PURPOSE: A stretch sheet molding apparatus including a plurality of forming punches is provided to support large pressure at any thickness of sheet and a stretch sheet molding method using the apparatus is also provided. CONSTITUTION: A stretch sheet molding apparatus comprises a plurality of forming punches(1), one or more forming jigs(2), and one or more hydraulic presses. The forming punches are arranged beneath of a sheet(5). The forming jigs are fixed to the end of the sheet. The hydraulic presses apply a tensile force to the forming jigs.