Press-formed workpiece with an increased corner portion thickness and apparatus and method for manufacture thereof

摘要

A press-formed member (80) includes a first wall (81) with a first thickness, a second wall (83) with a second thickness, and a first corner portion (82). The first corner portion (82) is disposed between the first (81) and second (83) walls, with the first corner portion (82) having an increased thickness formed by pressure-forming such that the increased thickness of the first corner portion (82) is larger than the first and second thicknesses of the first (81) and second walls (83) adjacent to the first corner portion (82). In a manufacturing method for the press-formed member, a preliminary body structure (20) to be deformed is provided, and the thickness of the first corner portion (22) of the preliminary body structure (20) is increased by applying pressure to the preliminary body structure (20).