| 摘要 |
A separation type dies for equal channel angular pressing process with lower loads is provided to prevent a distortion phenomenon of the workpiece that has passed through the equal channel angular pressing process and prevent increase of forming load by easily removing a workpiece without help of an additional sample and removing the interference with workpiece. In a dies for equal channel angular pressing process, a separation type dies for equal channel angular pressing process with lower loads is characterized in that the dies has: an entrance passage(24) which is formed therein, and into which a workpiece is injected; and an exit passage(26) which is formed therein, which intersects with the entrance passage at a predetermined angle, and from which the workpiece is discharged, the dies having a separation face(22) formed on a plane thereof, the plane being parallel to the discharge direction of the workpiece, such that the dies is divided into an upper die part(30) and a lower die part(32). The separation face is positioned between upper and lower faces of the exit passage. The exit passage includes: a shear strain passage(26a) through which a load is applied to the workpiece; and an exit guiding passage(26b) which is linked to an end of the shear strain passage, and has a cross-sectional width larger than that of the shear strain passage.
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