The present invention relates to a method for producing a solid component which in succession involves a step (240) of deforming a metal bar (40) by forging using two dies in order to obtain an intermediate component (50) comprising two fins (51) one on each side of a solid part (53) capable of forming the base (39) of said metal reinforcement (30), said two fins (51) being at a divergent angle a; a step (250) of deforming said fins (51) of said intermediate component (50), altering said divergent angle a, so as to obtain the final shape of the turbomachine blade leading edge or trailing edge metal reinforcement (30).