On the properties and economics of sintered iron powder metallurgical extrudes

Abstract

Cold Hooker extruded iron compacts have been evaluated for density, mechanical and metallurgical properties, in the as-extruded, annealed and re-sintered conditions and the results compared with those for an equivalent wrought composition. The extent of densification occurring due to cold deformation of the P/M compacts has also been examined. The commercial viability of the process of cold extruding a P/M preform has been analysed by considering the manufacture of a suitable component by the above process and comparing it with manufacture by the existing conventional process. This evaluation gives an indication of the economics of the Hooker extrusion process of P/M preforms for the manufacture of a similar family of products.