Claims
- 1. The method of finishing a plurality of piston ring faces comprising the steps of, supporting a plurality of stacked piston rings so that they have a common center axis by engaging their outer surfaces with a plurality of rollers mounted parallel to the center axis and equally spaced about the outer surfaces of said piston rings, driving at least one of said plurality of rollers so as to rotate said piston rings, engaging the outer surfaces of said piston rings with a first tool between two of said plurality of rollers and moving said first tool parallel to said center axis to hone the outer surfaces of said rings, and engaging the outer surfaces of said piston rings with a second tool on the sides opposite to the sides engaged by said first tool and moving said second tool parallel to said center axis to hone the outer surfaces of said rings.
- 2. The method of claim 1 wherein the movements of said first and second tools are independent of each other.
Parent Case Info
This is a division, of application Ser. No. 880,810, filed Feb. 24, 1978 which is a continuation application of Ser. No. 741,501, filed Nov. 12, 1976, now abandoned.
US Referenced Citations (9)
Divisions (1)
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Number |
Date |
Country |
Parent |
880810 |
Feb 1978 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
741501 |
Nov 1976 |
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