Compaction of a Copper Spiral within a Cylindrical Die of Steel Powder and Investigation of their Deformation Behaviour

摘要

Powder metallurgy (PM) has received a significant importance in the metal processing industry during the recent years. Thus an efficient component manufacturing with reduced production and operation costs is vital. In the course of this work the interaction of a foreign material with steel powder during the compaction process is studied. The research work has been divided into two sections. In the first sections experiments are carried out to study the compaction behaviour of steel powder compacts and parametrize the Drucker-Prager cap model. The second section deals with the study of compaction and deformation behaviour of a powder-copper spiral compact. A copper spiral is placed in steel powder and compressed uniaxially from its top as well as bottom. The deformation behaviour of the spiral is numerically investigated in FE tool Abaqus. The findings will help optimize the integrated channels in the PM hot forging die being designed at the IFUM.