Perumal, M., Anthonysamy, B., and Sundaramoorthy, A., "Development of Porous Free Combustion Chamber Prototype Cylinder Head Casting in Sand Casting," SAE Technical Paper 2015-01-0524, 2015, doi:10.4271/2015-01-0524.
This method and its special process are particularly suited for the production of Porous free combustion chamber prototype aluminium cylinder head casting. Current methods for producing porous free combustion chamber are graphite coating and CI/Cu metal chill which are moderately effective in achieving porous free combustion chamber. However, these current methods have serious drawbacks like high rejections due to blow holes/gas porosity generated from graphite coating and fine porosity due to prolonged cooling because of slow rate of cooling while peak temperature of metal chills.The present work shows how this goal can be achieved in cylinder head casting of single cylinder high speed engine. Fundamental micro structural investigations are shown as well as the results of tensile tests, high temperature strength, corrosion behavior and static and dynamic component testing.Test results showed great results as expected for porous free cylinder head casting, whose mechanical properties made it the best solution when high performance in terms of ductility and high tensile strength, are required.