FIELD: plastic metal working, possibly manufacture of three-dimension products of sheet blanks. SUBSTANCE: method comprises steps of feeding blanks of sheet material one after another in apparatus for imparting them round shape by plastically deforming them along circle arc by rounding until achieving desired constant radius. Portion of blank leaving rounding apparatus in position of rounding is deflected by means of guides while it is elastically deformed for shifting it to transporting position from rounding position and in the result above mentioned portion of elastically deformed blank is held under load. As soon as end portion of blank leaves rounding apparatus it jumps to transporting position by action of said load and sets free path for next blank of sheet material that also may be subjected to rounding deformation but only after previous rounded blank of sheet material is knocked out of said apparatus for further transportation. EFFECT: shortened time period of working, high quality of products. 18 cl, 11 dwg
