FEA and Precision Machining on Ceramic Plunger Couple

摘要

Ceramic plunger couple are appreciated by engine designer thanks to its high performances such as anticorrosion and wearproof, however which are restricted due to machining difficulty. This article will discuss the feasibility of replacing metal material with silicon nitride ceramics in plunger coupler manufacturing through analysis on change law of stress and displacement of 12150L diesel engine plunger coupler at rated condition, design and develop special clamp for intractable spiral line and oil-out trough, and with satisfactory machining effect.