System for focusing and transferring to the metal sheet of the external heat sources for the sheet metal forming of the low formability material

摘要

PURPOSE: A method for concentrating and transferring an external heat source is provided to improve the molding property of a hard-to-mold material, such as high-tension steel, aluminum alloy, magnesium alloy, the titanium alloy, and the like. CONSTITUTION: A method for concentrating and transferring an external heat source includes a bending mold frame (10), an external heat source concentration composition device (30), and a transferring device (40). The bending mold frame molds part of a hard-to-mold material (20) into a target shape. The external heat source concentration composition device includes s a housing that prevents the loss of the near-infrared ray of light through insulation. The transferring device is connected to the external heat source concentration composition device, and transfers the light that partially heats the hard-to-mold material. The transferring device is fitted to the shape of the mold, and partially and discontinuously heats the hard-to-mold material.