Influence of fluidity and Hausner’s ratio in the process behaviour of P/M of Al -% wt Cu Composite

Abstract

The term ‘P/M’ covers the art of producing objects from metal powders or without adding any non metallicconstituents and without completely melting material. In order to produce engineering material one shouldstudy the flow of the powder. Because the powders may be pressed to the desired form in a suitable die andsubsequently heated to produce a welded alloyed or coalesced mass. The wide spread use of powders in theP/M industry has generated a variety of methods for characterizing the powder flow. Hence this paperdescribes the role of flow rate and fluidity of the powder composition which is taken for the investigationpurpose. The study helps the material may then be suitable for immediate use or may be further worked byconventional methods. Because the strength of finished engineering product depends on the flow rate of thepowder. Moreover the fluidity offers best article production with unique properties which is not obtained byother methods. The best example is bearings and filters with controlled porosity. For investigation purposevarious compositions of Al-Cu powder is used. With small variation the result is obtained. It is understoodthat the composition of Al –Cu is neither pyrophoric nor toxic in nature.