FORMING DEVICE

• Main Author: ISOGAWA MASAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 28.07.2022
• Subjects: FORGE FURNACES; FORGING; HAMMERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRESSING METAL; PUNCHING METAL; RIVETING; TRANSPORTING

To provide a forming device that can perform bending-forming stably, by controlling a direction of bending caused by buckling.SOLUTION: A forming device, which pressurizes a columnar metal material to bend and form it into a desired shape, comprises: a first pressing die that constitutes an upsetting die that pressurizes both ends in an axial direction of the metal material, has a first pressing surface that presses one end face in the axial direction of the metal material, in a pressing direction of the upsetting die, and holds one end in the axial direction of the metal material; a second pressing die that constitutes the upsetting die together with the first pressing die, has a second pressing surface that presses the other end face in the axial direction of the metal material, in the pressing direction, and holds the other end in the axial direction of the metal material; and a bending member that bends the metal material in a cross direction crossing the pressing direction, by pressurizing at least a portion of a side part of both ends of the metal material held by the first pressing die and the second pressing die, in the cross direction. One pressing surface of at least either of the first pressing surface and the second pressing surface is inclined so that a normal line of the pressing surface inclines in the cross direction with respect to the pressing direction as a reference.SELECTED DRAWING: Figure 1 【課題】座屈による曲げ方向を制御することで、安定した曲げ成形を可能とする成形装置を提供する。【解決手段】柱状の金属材料を加圧し曲げ成形する成形装置であって、金属材料の軸方向の両端を加圧する据え込み型を構成し、金属材料の軸方向の一端面を据え込み型の押圧方向に押圧する第１押圧面を有し、金属材料の軸方向の一端を保持する第１押え型と、第１押え型とともに据え込み型を構成し、金属材料の軸方向の他端面を押圧方向に押圧する第２押圧面を有し、金属材料の軸方向の他端を保持する第２押え型と、第１押え型と第２押え型とによって保持された金属材料の両端の間の側部の少なくとも一部を、押圧方向と交差する交差方向に押圧し、金属材料を交差方向へ曲げる曲げ部材と、を備え、第１押圧面および第２押圧面のうち少なくとも一方の押圧面は、押圧面の法線が押圧方向を基準として交差方向に傾くように、傾斜している。【選択図】図１