Production method, piston blank, piston and axial piston machine having said piston

A production method, wherein the production method comprises the following method steps:

• producing an intermediate blank of a piston for an axial piston machine by extrusion, wherein the intermediate blank has a shaft portion, a ball head portion and a sealing portion, wherein the shaft portion connects the ball head portion to the sealing portion, wherein the ball head portion includes an indentation and the sealing portion includes a recess, wherein the ball head portion includes a larger outside diameter than the shaft portion;
• and
• producing a piston blank of the piston from the intermediate blank, wherein a through-opening is incorporated in the intermediate blank by machining, wherein the through-opening extends within the piston blank in a longitudinal direction, wherein the indentation at the piston blank forms an outlet for the through-opening;
• wherein the recess and the indentation are created on the intermediate blank as a result of the extrusion, wherein the recess forms an inlet for the through-opening and the sealing portion includes a flange or collar extending with respect to a main axis in a radial direction, wherein the main axis is defined via a longitudinal axis along the shaft portion, wherein the sealing portion includes a larger diameter than the shaft portion.