BENDING METHOD AND BENDING DEVICE FOR BENDING COMPOSITE ROD Russian patent published in 2022 - IPC B29C53/08 B29C53/84 

FIELD: composite materials.

SUBSTANCE: invention relates to a method for bending a composite rod. The method includes bending composite rod (11) in bending site (21) that has reinforcing fiber bundle (15) with several reinforcing fibers (14), embedded into a cured plastic matrix. The method includes the location of waveguide concentrator (24) of ultrasound device (22) at bending site (21). In this case, both sections (11a) of composite rod (11), adjacent to bending site (21), pass in the first spatial direction (x). Plastic matrix (M) of composite rod (11) is heated at bending site (21) by introduction of ultrasound waves. Composite rod (11) is deformed to form deformation section (37) at bending site (21) by means of supplying motion between waveguide concentrator (24) and composite rod (11) in the second spatial direction (y) that is oriented radially to manufactured bending at bending site (21), so that a section of the reinforcing fiber bundle is subjected to extension along the bending site and set to the required position. Composite rod (11) is bent at bending site (21). Plastic matrix (M) is cured at bending site (21).

EFFECT: acceleration and simplification of bending a composite rod.

20 cl, 23 dwg