METHOD TO BREAK MATERIAL FOR BLANKS Russian patent published in 1997 - IPC

FIELD: materials shaping, methods of separation of metal and nonmetallic rod-type, tubular and other materials for blanks by breakage. SUBSTANCE: method of material breakage for blanks provides for application on material of concentrates tension in the form of scores and application to score plane of destructing loading. In the case material is first loaded with static loading to the limit of flexibility and then without taking it away pulse destructive loading is applied. Speed of the pulse loading application is equal or exceeds speed of beginning of the material fragile destruction. Preliminary static and destructing pulse loadings of material for breakage is exercised with usage of any of following kinds of deformation: bending, tension, shifting, twisting or their combinations. EFFECT: improved process. 2 cl, 4 dwg, 1 tbl