Article : Forming Analysis Of Sintered Metal Powder Perform: An Equilibrium Approach


Forming Analysis Of Sintered Metal Powder Perform: An Equilibrium Approach


Arun Sharma, R. K. Ranjan, Abhay Kumar Sharma, Maneesh Choubey

The extrusion of metal powders at room temperature with subsequent sintering allows manufacturing of final products with unique microstructures and therefore with unique mechanical properties. In this study, the experimental results of extrusion of both aluminium and copper powders under laboratory conditions are presented and analysed. The main objective of the work is to demonstrate the various aspects of extrusion of powder preforms, which have been compacted and sintered from atomized powder. An attempt has been made for the determination of the die pressures developed during the extrusion of powder preform by using an Equilibrium approach. The interfacial friction law considered and dealt with in great detail, and also the yield criterion. The results so obtained are discussed critically to illustrate the interaction of various process parameters involved and are presented graphically.

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