R. Sagar, IIT Delhi, Delhi, India
The composite is manufactured and tests have been carried out to charecterize its properties like strength, hardness etc It is possible to produce very small diameter and very long holes with this material. These holes have to be drilled in blades of high speed gas turbines. The studies have been made in this paper on the surface finish and roundness of the hole produced in an alloy of Al.
Summary: A ball milled powder of Al and SiC is mixed with epoxy which is later coated on a mesh prepared from glass fibers woven in the form of a rope built on a wire of Tungsten Carbide. It can be used as a drill for making small diameter long holes. It can be used as a small diameter shaft with very good wear resistance and hardness.
