CPC B29C 53/84 (2013.01) [B29C 53/083 (2013.01); B29C 53/086 (2013.01); B29C 70/52 (2013.01); B29K 2105/106 (2013.01); B29L 2031/001 (2013.01); B29L 2031/10 (2013.01)] | 18 Claims |
1. A bending method for bending at least one composite bar (11) at a bending location (21) that comprises a reinforcement fiber bundle (15) with multiple reinforcement fibers (14) embedded in a cured plastic matrix, the method comprising the following steps:
arranging a sonotrode (24) of an ultrasonic device (22) at the bending location (21), wherein two bar sections (11a) of the at least one composite bar (11) that adjoin the bending location (21) extend in a first spatial direction (x),
heating a plastic matrix (M) of the at least one composite bar (11) at the bending location (21) by coupling ultrasonic waves in the at least one composite bar (11) at the bending location (21),
prior to bending the at least one composite bar (11), deforming the at least one composite bar (11) for formation of a deformed section (37) at the bending location (21) by an infeed movement between the sonotrode (24) and the at least one composite bar (11) in a second spatial direction (y) that is orientated radial to a bend that is to be created at the bending location (21),
bending the at least one composite bar (11) at the bending location (21),
curing the plastic matrix (M) at the bending location (21).
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