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A method of enhancing materials for flow localization and manifestation of adiabatic shear bands under high speed loading, comprising the steps of intensively plastically deforming a material at low strain rates by simple shear along prescribed planes a few times into a right and opposite directions

A method of enhancing materials for flow localization and manifestation of adiabatic shear bands under high speed loading, comprising the steps of intensively plastically deforming a material at low strain rates by simple shear along prescribed planes a few times into a right and opposite directions with accumulated effective strain of Ei>1.

대표청구항 ▼

An apparatus for equal channel angular extrusion of billets of square cross-section area, comprising a vertical channel having a rectangular cross-section with a width corresponding to a billet cross-section and a thickness which is twice as much as the corresponding billet cross-section; two horizo

An apparatus for equal channel angular extrusion of billets of square cross-section area, comprising a vertical channel having a rectangular cross-section with a width corresponding to a billet cross-section and a thickness which is twice as much as the corresponding billet cross-section; two horizontal channels having square cross-sections corresponding to the billet cross-section, being continuous with and oriented in opposite directions at an angle relative to the vertical channel; two movable sliders defining side walls of the vertical and horizontal channels; a punch covering cross-sections of the vertical channel and sliders arranged to simultaneously extrude two billets from the vertical channel into the first and second horizontal channels, respectively; and means for inserting two billets side-by-side into the vertical channel.