Method of manufacturing a piston having a hollow piston head

Details Method of manufacturing a piston having a hollow piston head Method of manufacturing a piston having a hollow piston head

2006-11-21

2006-11-21

Lopez, F. Daniel (Department: 3745)

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

C029S888044, C029S520000

Reexamination Certificate

active

07137197

ABSTRACT:
A method of manufacturing a piston using a swaging tool includes the step of positioning a portion of a first member and a portion of a second member of the piston within a first end of an opening formed through the swaging tool, such that a reduced diameter portion of the second member is substantially aligned with a first ring portion of the first member and an end portion of the second member contacts a second ring portion of the first member to create an annular space adjacent to the first ring portion and the reduced diameter portion. The method also includes the step of subsequently swaging the first ring portion by moving the first ring portion in a direction toward a second end of the swaging tool, such that a portion of the first ring portion is positioned within the annular space to fix the first member to the second member.

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