Manufacturing process for cooling channel piston with formable shoulder
AssigneeKS Kolbenschmidt GmbH
InventorSiegfried Mielke
Life of this patent
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Abstract
Manufacturing process for a cooling channel piston with formable shoulder Process for manufacturing a cooling channel piston which has a cooling channel approximately in the area behind the ring belt, where a piston blank is shaped at least partially by forging, where in accordance with the invention it is envisaged that a circumferential shoulder is formed in the area of the heat dam also by forging, a recess is introduced behind the shoulder and the shoulder is subsequently reshaped by deformation in such a way that the recess is closed by the shoulder to form a cooling channel.
Claims8
Process for manufacturing a cooling channel piston which has a cooling channel approximately in the area behind a ring belt, where a piston blank is shaped at least partially in a forging process, characterized in that at least one circumferential shoulder is formed, behind the at least one shoulder a recess is introduced and then the at least one shoulder is reshaped by means of deformation such that the recess is closed by the at least one shoulder to create the cooling channel.
Process in accordance with one of the preceding claims, wherein the at least one shoulder is rigidly connected to said piston blank or to another shoulder.
Process in accordance with one of the preceding claims, wherein the shoulder is furnished with sealing means in the contact area with respect to the piston blank.
Dependencies are inferred from the claim text.