A New Technique for Measurements of the Strength of Ceramic Shells in the precision Casting Process

摘要

This paper discusses the development of a new technique for measuring the strenght of ceramic shells, In this technique, compressed air was passed into the ceramic shells and the bursting pressrue was measured using a diaphragm pressure gage. The hoop stresses were calcualted. The resutls of the new technique relistically match the actual failrue rate of shell sin the precision castign process.