Crimping die, crimping equipment and method of manufacturing conductive wire with terminal

A crimping die for use in crimping a crimp portion of tubular shape included in a terminal fitting onto a conductive wire lying in the crimp portion, comprising:

• a first die piece having a recess portion and a second die piece having a protrusion portion that enters the recess portion,
• wherein an inner wall surface of the recess portion has a bottom wall surface and a pair of recess-side lateral end surfaces separately situated on opposite sides of the bottom wall surface,
• an outer surface of the protrusion portion has a top end surface and a pair of protrusion-side lateral end surfaces separately situated on opposite sides of the top end surface,
• the crimping die presses the crimp portion having the conductive wire therein with the inner wall surface and the outer surface to crimp the crimp portion onto the conductive wire,
• the bottom wall surface has a recess-side projection portion projecting toward an opening of the recess portion, a recess-side concave portion adjoining the recess-side projection portion, and a recess-side curvature changing portion between the recess-side concave portion and one of the pair of recess-side lateral end surfaces,
• the top end surface has a protrusion-side projection portion projecting in a same direction as a direction in which the protrusion portion protrudes, a protrusion-side concave portion adjoining the protrusion-side projection portion, and a protrusion-side curvature changing portion between the protrusion-side concave portion and one of the pair of protrusion-side lateral end surfaces,
• the recess-side curvature changing portion forms a flat surface intersecting one of the pair of recess-side lateral end surfaces, and
• the protrusion-side curvature changing portion forms a flat surface intersecting one of the pair of protrusion-side lateral end surfaces.