A new method for detecting the shape of a piston ring has been developed. The method uses the magnitude of a surface wave ultrasonic echo to plot the quality of the contact between a piston ring and a gage bore on a polar graph. The testing method and the results are discussed for single-piece and multi-piece rings, and for various surface treatments utilized in automotive piston rings.
An Ultrasonic Method of Measuring Piston Ring Bore-Contact Patterns
Sae Technical Papers
1967 Automotive Engineering Congress and Exposition ; 1967
1967-02-01
Conference paper
English
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