JP2005000992A5 - - Google Patents

Claims (10)

While pushing the material loaded in the container fixed so as not to rotate with a pusher and rotating the die around the extrusion axis, make a part of the cross-section of the material in the container hot and part cold A torsion forward extrusion method characterized in that the processing is performed in a state where the temperature distribution in the cross section of the material is not uniform. The material loaded in the container with the bottom is pushed with a hollow pusher that has a hollow groove at the tip, and the material is pushed out of the die groove in the direction opposite to the pushing direction, and the container is pushed in the axial direction. In the process of fixing in the rotation direction and rotating the hollow pusher around the extrusion axis, the temperature distribution in the cross section of the material is changed by setting a part of the cross section of the material in the container to a high temperature and a part of the cross section to a low temperature. A torsion backward extrusion method characterized by processing in a non-uniform state. The material loaded in the container is pushed by the pusher pressure P1, and in the process of passing the die having the same shape as the inner surface of the container and the groove having the same cross-sectional area, the pusher pusher does not prevent the material from proceeding. It is characterized by applying back pressure P2 and extruding in a state in which a part of the cross section of the material in the container is heated to a high temperature and a part of the cross section of the material is cooled to a non-uniform temperature distribution in the cross section of the material. Torsional double extrusion process. While pushing the material loaded in the container fixed so as not to rotate and gripping and rotating the material at the container outlet, a part of the cross section of the material in the container is heated and a part is cooled A torsion forward extrusion method characterized in that the processing is performed in a state where the temperature distribution in the cross section of the material is non-uniform. The material is pushed into the container with a pusher, and both the container and the die are fixed to the gantry so as not to rotate, and surface reduction processing is performed with the die, and the outlet side material is removed from the outlet side material by a gripping rotation device arranged on the outlet side of the die. In the processing method of rotating around the axis of the material, processing is performed in a state where the temperature distribution in the cross section of the material is uneven by setting a part of the cross section of the material in the container to a high temperature and a part of the cross section to a low temperature. A torsion forward extrusion process characterized in that it is performed. The material is pushed into the container with a pusher, and both the container and the first die are fixed to the base so as not to rotate, a second die is added to the outlet side of the first die, and the second die is rotated. However, in the processing method in which surface reduction processing is performed with both the first die and the second die, a part of the cross section of the material in the container is heated to a high temperature, and a part of the cross section of the material is cooled to a temperature within the cross section of the material. A torsional forward extrusion method characterized in that processing is performed with a non-uniform distribution. The material is pushed into the container with a pusher, fixed to the gantry so that both the container and the die do not rotate, a gripping rotation device for the outlet material is placed on the outlet side of the die, and the axis of the material in the container In a method in which the gripping rotation device is parallel to the axis of the gripping rotation device but does not coincide with each other, and a surface extrusion process using a die is performed while rotating the gripping rotation device, a part of the material in the container is heated to a high temperature. A non-axisymmetric torsional forward extrusion method characterized in that the processing is performed in a state where a part of the temperature is low and the temperature distribution in the cross section of the material is non-uniform. A state in which the temperature distribution in the cross section of the material in the container is almost uniform while pushing the material loaded in the container fixed so as not to rotate and gripping and rotating the material at the container outlet A torsional forward extrusion process characterized by processing with The material is pushed into the container with a pusher, and both the container and the die are fixed to the gantry so as not to rotate, and surface reduction processing is performed with the die, and the outlet side material is removed from the outlet side material by a gripping rotation device arranged on the outlet side of the die. A torsional forward extrusion method characterized in that processing is performed in a state where the temperature distribution in the cross section of the material in the container is substantially uniform in the processing method of rotating around the axis of the container. The material is pushed into the container with a pusher, and both the container and the first die are fixed to the base so as not to rotate, a second die is added to the outlet side of the first die, and the second die is rotated. However, in the processing method in which surface reduction processing is performed with both the first die and the second die, the processing is performed in a state where the temperature distribution in the cross section of the material in the container is substantially uniform. Forward extrusion process.