ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 3

A New Technique for Measurement of the Strength of Ceramic Shells in the Precision Casting Process

Reddy, AC
M.J. College of Engineering and Technology, Hyderabad,

Murti, VSR
Osmania University, Hyderabad,

Jebaraj, PM
Dr. Ambedkar Institute of Technology, Bangalore,

(Received 20 September 1999; accepted 11 February 2000)

Abstract

This paper discusses the development of a new technique for measuring the strength of ceramic shells. In this technique, compressed air was passed into the ceramic shells and the bursting pressure was measured using a diaphragm pressure gage. The hoop stresses were calculated. The results of the new technique realistically match the actual failure rate of shells in the precision casting process.

Keywords:
ceramic shells, bending strength, permeability, bursting strength, failure rates

Paper ID: JTE12098J
DOI: 10.1520/JTE12098J
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