A method for manufacturing an armature that includes an iron core and a coil, the iron core including slots, the coil being coupled to the slots of the iron core, the method comprising: a pressing step that presses a conductor of the coil in each of the slots and plastically deforms the conductor; and a bending step that bends and deforms a protrusion in the conductor, the protrusion being located outside of the slot, wherein the pressing step includes pressing the conductor and extending the conductor in an axial direction of the iron core so that a small cross-sectional portion is formed in the protrusion, the small cross-sectional portion having a smaller cross-sectional area than a portion of the conductor that is not pressed, the bending step includes bending and deforming the small cross-sectional portion so as to bend and deform the protrusion, wherein the bending step includes bending and deforming the small cross-sectional portion while extending the conductor in the pressing step, and the conductor includes conductors the pressing step includes: a first step that presses a maximum number of the conductors capable of being arranged in each of the slots in a state in which the maximum number of the conductors are arranged in the slot, thereby extending the conductors; and characterized in that a second step that presses a maximum number of the conductors capable of being arranged in a gap in the slot created by pressing the conductors in the first step in a state in which the maximum number of the conductors are arranged in the gap, thereby extending the conductors arranged in the gap. a pressing step that presses a conductor of the coil in each of the slots and plastically deforms the conductor; and a bending step that bends and deforms a protrusion in the conductor, the protrusion being located outside of the slot, wherein the pressing step includes pressing the conductor and extending the conductor in an axial direction of the iron core so that a small cross-sectional portion is formed in the protrusion, the small cross-sectional portion having a smaller cross-sectional area than a portion of the conductor that is not pressed, the bending step includes bending and deforming the small cross-sectional portion so as to bend and deform the protrusion, wherein the bending step includes bending and deforming the small cross-sectional portion while extending the conductor in the pressing step, and the conductor includes conductors the pressing step includes: a first step that presses a maximum number of the conductors capable of being arranged in each of the slots in a state in which the maximum number of the conductors are arranged in the slot, thereby extending the conductors; and characterized in that a second step that presses a maximum number of the conductors capable of being arranged in a gap in the slot created by pressing the conductors in the first step in a state in which the maximum number of the conductors are arranged in the gap, thereby extending the conductors arranged in the gap. a first step that presses a maximum number of the conductors capable of being arranged in each of the slots in a state in which the maximum number of the conductors are arranged in the slot, thereby extending the conductors; and characterized in that a second step that presses a maximum number of the conductors capable of being arranged in a gap in the slot created by pressing the conductors in the first step in a state in which the maximum number of the conductors are arranged in the gap, thereby extending the conductors arranged in the gap.