Inlaid ring with plated lateral side

US10428945B2 · kind B2 · utility

Assignee

• Mahle International GmbH · DE

Inventors

• Thomas J. Smith · Bay Shore, US
• Alexander S. Cooper · Maple Rapids, US
• Robert J. Piccard · St. Johns, US
• Timothy Andros · Fowler, US
• Claudinei J. de Oliveira · St. Johns, US
• Jason Bieneman · Brunswick, US
• Victor H. Tapia Ramirez · Aguascalientes, MX
• Terry Pecott · Whitehall, US

Key dates

• Filing date: Oct 12, 2016
• Grant date: Oct 1, 2019
• Expiry date: Mar 5, 2037

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23P15/06
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method of forming a piston ring includes providing a base portion formed of a metallic material, the base portion having a first surface, and a second surface that is opposite the first surface, the base portion configured to interface with a piston ring groove. The method includes grinding the first surface to form a reference surface, applying a chromium layer to the second surface, and grinding the chromium layer to reduce a surface roughness of the chromium layer.